(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.GraphiQL = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
(function (global){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.DocExplorer = undefined;

var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

var _react = (typeof window !== "undefined" ? window['React'] : typeof global !== "undefined" ? global['React'] : null);

var _react2 = _interopRequireDefault(_react);

var _propTypes = require('prop-types');

var _propTypes2 = _interopRequireDefault(_propTypes);

var _graphql = require('graphql');

var _FieldDoc = require('./DocExplorer/FieldDoc');

var _FieldDoc2 = _interopRequireDefault(_FieldDoc);

var _SchemaDoc = require('./DocExplorer/SchemaDoc');

var _SchemaDoc2 = _interopRequireDefault(_SchemaDoc);

var _SearchBox = require('./DocExplorer/SearchBox');

var _SearchBox2 = _interopRequireDefault(_SearchBox);

var _SearchResults = require('./DocExplorer/SearchResults');

var _SearchResults2 = _interopRequireDefault(_SearchResults);

var _TypeDoc = require('./DocExplorer/TypeDoc');

var _TypeDoc2 = _interopRequireDefault(_TypeDoc);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; } /**
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *  Copyright (c) Facebook, Inc.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *  All rights reserved.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *  This source code is licensed under the license found in the
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *  LICENSE file in the root directory of this source tree.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                */

var initialNav = {
  name: 'Schema',
  title: 'Documentation Explorer'
};

/**
 * DocExplorer
 *
 * Shows documentations for GraphQL definitions from the schema.
 *
 * Props:
 *
 *   - schema: A required GraphQLSchema instance that provides GraphQL document
 *     definitions.
 *
 * Children:
 *
 *   - Any provided children will be positioned in the right-hand-side of the
 *     top bar. Typically this will be a "close" button for temporary explorer.
 *
 */

var DocExplorer = exports.DocExplorer = function (_React$Component) {
  _inherits(DocExplorer, _React$Component);

  function DocExplorer() {
    _classCallCheck(this, DocExplorer);

    var _this = _possibleConstructorReturn(this, (DocExplorer.__proto__ || Object.getPrototypeOf(DocExplorer)).call(this));

    _this.handleNavBackClick = function () {
      if (_this.state.navStack.length > 1) {
        _this.setState({ navStack: _this.state.navStack.slice(0, -1) });
      }
    };

    _this.handleClickTypeOrField = function (typeOrField) {
      _this.showDoc(typeOrField);
    };

    _this.handleSearch = function (value) {
      _this.showSearch(value);
    };

    _this.state = { navStack: [initialNav] };
    return _this;
  }

  _createClass(DocExplorer, [{
    key: 'shouldComponentUpdate',
    value: function shouldComponentUpdate(nextProps, nextState) {
      return this.props.schema !== nextProps.schema || this.state.navStack !== nextState.navStack;
    }
  }, {
    key: 'render',
    value: function render() {
      var schema = this.props.schema;
      var navStack = this.state.navStack;
      var navItem = navStack[navStack.length - 1];

      var content = void 0;
      if (schema === undefined) {
        // Schema is undefined when it is being loaded via introspection.
        content = _react2.default.createElement(
          'div',
          { className: 'spinner-container' },
          _react2.default.createElement('div', { className: 'spinner' })
        );
      } else if (!schema) {
        // Schema is null when it explicitly does not exist, typically due to
        // an error during introspection.
        content = _react2.default.createElement(
          'div',
          { className: 'error-container' },
          'No Schema Available'
        );
      } else if (navItem.search) {
        content = _react2.default.createElement(_SearchResults2.default, {
          searchValue: navItem.search,
          withinType: navItem.def,
          schema: schema,
          onClickType: this.handleClickTypeOrField,
          onClickField: this.handleClickTypeOrField
        });
      } else if (navStack.length === 1) {
        content = _react2.default.createElement(_SchemaDoc2.default, { schema: schema, onClickType: this.handleClickTypeOrField });
      } else if ((0, _graphql.isType)(navItem.def)) {
        content = _react2.default.createElement(_TypeDoc2.default, {
          schema: schema,
          type: navItem.def,
          onClickType: this.handleClickTypeOrField,
          onClickField: this.handleClickTypeOrField
        });
      } else {
        content = _react2.default.createElement(_FieldDoc2.default, {
          field: navItem.def,
          onClickType: this.handleClickTypeOrField
        });
      }

      var shouldSearchBoxAppear = navStack.length === 1 || (0, _graphql.isType)(navItem.def) && navItem.def.getFields;

      var prevName = void 0;
      if (navStack.length > 1) {
        prevName = navStack[navStack.length - 2].name;
      }

      return _react2.default.createElement(
        'div',
        { className: 'doc-explorer', key: navItem.name },
        _react2.default.createElement(
          'div',
          { className: 'doc-explorer-title-bar' },
          prevName && _react2.default.createElement(
            'div',
            {
              className: 'doc-explorer-back',
              onClick: this.handleNavBackClick },
            prevName
          ),
          _react2.default.createElement(
            'div',
            { className: 'doc-explorer-title' },
            navItem.title || navItem.name
          ),
          _react2.default.createElement(
            'div',
            { className: 'doc-explorer-rhs' },
            this.props.children
          )
        ),
        _react2.default.createElement(
          'div',
          { className: 'doc-explorer-contents' },
          shouldSearchBoxAppear && _react2.default.createElement(_SearchBox2.default, {
            value: navItem.search,
            placeholder: 'Search ' + navItem.name + '...',
            onSearch: this.handleSearch
          }),
          content
        )
      );
    }

    // Public API

  }, {
    key: 'showDoc',
    value: function showDoc(typeOrField) {
      var navStack = this.state.navStack;
      var topNav = navStack[navStack.length - 1];
      if (topNav.def !== typeOrField) {
        this.setState({
          navStack: navStack.concat([{
            name: typeOrField.name,
            def: typeOrField
          }])
        });
      }
    }

    // Public API

  }, {
    key: 'showDocForReference',
    value: function showDocForReference(reference) {
      if (reference.kind === 'Type') {
        this.showDoc(reference.type);
      } else if (reference.kind === 'Field') {
        this.showDoc(reference.field);
      } else if (reference.kind === 'Argument' && reference.field) {
        this.showDoc(reference.field);
      } else if (reference.kind === 'EnumValue' && reference.type) {
        this.showDoc(reference.type);
      }
    }

    // Public API

  }, {
    key: 'showSearch',
    value: function showSearch(search) {
      var navStack = this.state.navStack.slice();
      var topNav = navStack[navStack.length - 1];
      navStack[navStack.length - 1] = _extends({}, topNav, { search: search });
      this.setState({ navStack: navStack });
    }
  }, {
    key: 'reset',
    value: function reset() {
      this.setState({ navStack: [initialNav] });
    }
  }]);

  return DocExplorer;
}(_react2.default.Component);

DocExplorer.propTypes = {
  schema: _propTypes2.default.instanceOf(_graphql.GraphQLSchema)
};
}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"./DocExplorer/FieldDoc":4,"./DocExplorer/SchemaDoc":6,"./DocExplorer/SearchBox":7,"./DocExplorer/SearchResults":8,"./DocExplorer/TypeDoc":9,"graphql":95,"prop-types":233}],2:[function(require,module,exports){
(function (global){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = Argument;

var _react = (typeof window !== "undefined" ? window['React'] : typeof global !== "undefined" ? global['React'] : null);

var _react2 = _interopRequireDefault(_react);

var _propTypes = require('prop-types');

var _propTypes2 = _interopRequireDefault(_propTypes);

var _TypeLink = require('./TypeLink');

var _TypeLink2 = _interopRequireDefault(_TypeLink);

var _DefaultValue = require('./DefaultValue');

var _DefaultValue2 = _interopRequireDefault(_DefaultValue);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

/**
 *  Copyright (c) Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the license found in the
 *  LICENSE file in the root directory of this source tree.
 */

function Argument(_ref) {
  var arg = _ref.arg,
      onClickType = _ref.onClickType,
      showDefaultValue = _ref.showDefaultValue;

  return _react2.default.createElement(
    'span',
    { className: 'arg' },
    _react2.default.createElement(
      'span',
      { className: 'arg-name' },
      arg.name
    ),
    ': ',
    _react2.default.createElement(_TypeLink2.default, { type: arg.type, onClick: onClickType }),
    showDefaultValue !== false && _react2.default.createElement(_DefaultValue2.default, { field: arg })
  );
}

Argument.propTypes = {
  arg: _propTypes2.default.object.isRequired,
  onClickType: _propTypes2.default.func.isRequired,
  showDefaultValue: _propTypes2.default.bool
};
}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"./DefaultValue":3,"./TypeLink":10,"prop-types":233}],3:[function(require,module,exports){
(function (global){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = DefaultValue;

var _react = (typeof window !== "undefined" ? window['React'] : typeof global !== "undefined" ? global['React'] : null);

var _react2 = _interopRequireDefault(_react);

var _propTypes = require('prop-types');

var _propTypes2 = _interopRequireDefault(_propTypes);

var _graphql = require('graphql');

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function DefaultValue(_ref) {
  var field = _ref.field;
  var type = field.type,
      defaultValue = field.defaultValue;

  if (defaultValue !== undefined) {
    return _react2.default.createElement(
      'span',
      null,
      ' = ',
      _react2.default.createElement(
        'span',
        { className: 'arg-default-value' },
        (0, _graphql.print)((0, _graphql.astFromValue)(defaultValue, type))
      )
    );
  }

  return null;
} /**
   *  Copyright (c) Facebook, Inc.
   *  All rights reserved.
   *
   *  This source code is licensed under the license found in the
   *  LICENSE file in the root directory of this source tree.
   */

DefaultValue.propTypes = {
  field: _propTypes2.default.object.isRequired
};
}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"graphql":95,"prop-types":233}],4:[function(require,module,exports){
(function (global){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

var _react = (typeof window !== "undefined" ? window['React'] : typeof global !== "undefined" ? global['React'] : null);

var _react2 = _interopRequireDefault(_react);

var _propTypes = require('prop-types');

var _propTypes2 = _interopRequireDefault(_propTypes);

var _Argument = require('./Argument');

var _Argument2 = _interopRequireDefault(_Argument);

var _MarkdownContent = require('./MarkdownContent');

var _MarkdownContent2 = _interopRequireDefault(_MarkdownContent);

var _TypeLink = require('./TypeLink');

var _TypeLink2 = _interopRequireDefault(_TypeLink);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; } /**
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *  Copyright (c) Facebook, Inc.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *  All rights reserved.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *  This source code is licensed under the license found in the
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *  LICENSE file in the root directory of this source tree.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                */

var FieldDoc = function (_React$Component) {
  _inherits(FieldDoc, _React$Component);

  function FieldDoc() {
    _classCallCheck(this, FieldDoc);

    return _possibleConstructorReturn(this, (FieldDoc.__proto__ || Object.getPrototypeOf(FieldDoc)).apply(this, arguments));
  }

  _createClass(FieldDoc, [{
    key: 'shouldComponentUpdate',
    value: function shouldComponentUpdate(nextProps) {
      return this.props.field !== nextProps.field;
    }
  }, {
    key: 'render',
    value: function render() {
      var _this2 = this;

      var field = this.props.field;

      var argsDef = void 0;
      if (field.args && field.args.length > 0) {
        argsDef = _react2.default.createElement(
          'div',
          { className: 'doc-category' },
          _react2.default.createElement(
            'div',
            { className: 'doc-category-title' },
            'arguments'
          ),
          field.args.map(function (arg) {
            return _react2.default.createElement(
              'div',
              { key: arg.name, className: 'doc-category-item' },
              _react2.default.createElement(
                'div',
                null,
                _react2.default.createElement(_Argument2.default, { arg: arg, onClickType: _this2.props.onClickType })
              ),
              _react2.default.createElement(_MarkdownContent2.default, {
                className: 'doc-value-description',
                markdown: arg.description
              })
            );
          })
        );
      }

      return _react2.default.createElement(
        'div',
        null,
        _react2.default.createElement(_MarkdownContent2.default, {
          className: 'doc-type-description',
          markdown: field.description || 'No Description'
        }),
        field.deprecationReason && _react2.default.createElement(_MarkdownContent2.default, {
          className: 'doc-deprecation',
          markdown: field.deprecationReason
        }),
        _react2.default.createElement(
          'div',
          { className: 'doc-category' },
          _react2.default.createElement(
            'div',
            { className: 'doc-category-title' },
            'type'
          ),
          _react2.default.createElement(_TypeLink2.default, { type: field.type, onClick: this.props.onClickType })
        ),
        argsDef
      );
    }
  }]);

  return FieldDoc;
}(_react2.default.Component);

FieldDoc.propTypes = {
  field: _propTypes2.default.object,
  onClickType: _propTypes2.default.func
};
exports.default = FieldDoc;
}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"./Argument":2,"./MarkdownContent":5,"./TypeLink":10,"prop-types":233}],5:[function(require,module,exports){
(function (global){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

var _react = (typeof window !== "undefined" ? window['React'] : typeof global !== "undefined" ? global['React'] : null);

var _react2 = _interopRequireDefault(_react);

var _propTypes = require('prop-types');

var _propTypes2 = _interopRequireDefault(_propTypes);

var _markdownIt = require('markdown-it');

var _markdownIt2 = _interopRequireDefault(_markdownIt);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; } /**
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *  Copyright (c) Facebook, Inc.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *  All rights reserved.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *  This source code is licensed under the license found in the
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *  LICENSE file in the root directory of this source tree.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                */

var md = new _markdownIt2.default();

var MarkdownContent = function (_React$Component) {
  _inherits(MarkdownContent, _React$Component);

  function MarkdownContent() {
    _classCallCheck(this, MarkdownContent);

    return _possibleConstructorReturn(this, (MarkdownContent.__proto__ || Object.getPrototypeOf(MarkdownContent)).apply(this, arguments));
  }

  _createClass(MarkdownContent, [{
    key: 'shouldComponentUpdate',
    value: function shouldComponentUpdate(nextProps) {
      return this.props.markdown !== nextProps.markdown;
    }
  }, {
    key: 'render',
    value: function render() {
      var markdown = this.props.markdown;
      if (!markdown) {
        return _react2.default.createElement('div', null);
      }

      return _react2.default.createElement('div', {
        className: this.props.className,
        dangerouslySetInnerHTML: { __html: md.render(markdown) }
      });
    }
  }]);

  return MarkdownContent;
}(_react2.default.Component);

MarkdownContent.propTypes = {
  markdown: _propTypes2.default.string,
  className: _propTypes2.default.string
};
exports.default = MarkdownContent;
}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"markdown-it":172,"prop-types":233}],6:[function(require,module,exports){
(function (global){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

var _react = (typeof window !== "undefined" ? window['React'] : typeof global !== "undefined" ? global['React'] : null);

var _react2 = _interopRequireDefault(_react);

var _propTypes = require('prop-types');

var _propTypes2 = _interopRequireDefault(_propTypes);

var _TypeLink = require('./TypeLink');

var _TypeLink2 = _interopRequireDefault(_TypeLink);

var _MarkdownContent = require('./MarkdownContent');

var _MarkdownContent2 = _interopRequireDefault(_MarkdownContent);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; } /**
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *  Copyright (c) Facebook, Inc.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *  All rights reserved.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *  This source code is licensed under the license found in the
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *  LICENSE file in the root directory of this source tree.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                */

// Render the top level Schema
var SchemaDoc = function (_React$Component) {
  _inherits(SchemaDoc, _React$Component);

  function SchemaDoc() {
    _classCallCheck(this, SchemaDoc);

    return _possibleConstructorReturn(this, (SchemaDoc.__proto__ || Object.getPrototypeOf(SchemaDoc)).apply(this, arguments));
  }

  _createClass(SchemaDoc, [{
    key: 'shouldComponentUpdate',
    value: function shouldComponentUpdate(nextProps) {
      return this.props.schema !== nextProps.schema;
    }
  }, {
    key: 'render',
    value: function render() {
      var schema = this.props.schema;
      var queryType = schema.getQueryType();
      var mutationType = schema.getMutationType && schema.getMutationType();
      var subscriptionType = schema.getSubscriptionType && schema.getSubscriptionType();

      return _react2.default.createElement(
        'div',
        null,
        _react2.default.createElement(_MarkdownContent2.default, {
          className: 'doc-type-description',
          markdown: 'A GraphQL schema provides a root type for each kind of operation.'
        }),
        _react2.default.createElement(
          'div',
          { className: 'doc-category' },
          _react2.default.createElement(
            'div',
            { className: 'doc-category-title' },
            'root types'
          ),
          _react2.default.createElement(
            'div',
            { className: 'doc-category-item' },
            _react2.default.createElement(
              'span',
              { className: 'keyword' },
              'query'
            ),
            ': ',
            _react2.default.createElement(_TypeLink2.default, { type: queryType, onClick: this.props.onClickType })
          ),
          mutationType && _react2.default.createElement(
            'div',
            { className: 'doc-category-item' },
            _react2.default.createElement(
              'span',
              { className: 'keyword' },
              'mutation'
            ),
            ': ',
            _react2.default.createElement(_TypeLink2.default, { type: mutationType, onClick: this.props.onClickType })
          ),
          subscriptionType && _react2.default.createElement(
            'div',
            { className: 'doc-category-item' },
            _react2.default.createElement(
              'span',
              { className: 'keyword' },
              'subscription'
            ),
            ': ',
            _react2.default.createElement(_TypeLink2.default, {
              type: subscriptionType,
              onClick: this.props.onClickType
            })
          )
        )
      );
    }
  }]);

  return SchemaDoc;
}(_react2.default.Component);

SchemaDoc.propTypes = {
  schema: _propTypes2.default.object,
  onClickType: _propTypes2.default.func
};
exports.default = SchemaDoc;
}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"./MarkdownContent":5,"./TypeLink":10,"prop-types":233}],7:[function(require,module,exports){
(function (global){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

var _react = (typeof window !== "undefined" ? window['React'] : typeof global !== "undefined" ? global['React'] : null);

var _react2 = _interopRequireDefault(_react);

var _propTypes = require('prop-types');

var _propTypes2 = _interopRequireDefault(_propTypes);

var _debounce = require('../../utility/debounce');

var _debounce2 = _interopRequireDefault(_debounce);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; } /**
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *  Copyright (c) Facebook, Inc.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *  All rights reserved.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *  This source code is licensed under the license found in the
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *  LICENSE file in the root directory of this source tree.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                */

var SearchBox = function (_React$Component) {
  _inherits(SearchBox, _React$Component);

  function SearchBox(props) {
    _classCallCheck(this, SearchBox);

    var _this = _possibleConstructorReturn(this, (SearchBox.__proto__ || Object.getPrototypeOf(SearchBox)).call(this, props));

    _this.handleChange = function (event) {
      var value = event.target.value;
      _this.setState({ value: value });
      _this.debouncedOnSearch(value);
    };

    _this.handleClear = function () {
      _this.setState({ value: '' });
      _this.props.onSearch('');
    };

    _this.state = { value: props.value || '' };
    _this.debouncedOnSearch = (0, _debounce2.default)(200, _this.props.onSearch);
    return _this;
  }

  _createClass(SearchBox, [{
    key: 'render',
    value: function render() {
      return _react2.default.createElement(
        'label',
        { className: 'search-box' },
        _react2.default.createElement('input', {
          value: this.state.value,
          onChange: this.handleChange,
          type: 'text',
          placeholder: this.props.placeholder
        }),
        this.state.value && _react2.default.createElement(
          'div',
          { className: 'search-box-clear', onClick: this.handleClear },
          '\u2715'
        )
      );
    }
  }]);

  return SearchBox;
}(_react2.default.Component);

SearchBox.propTypes = {
  value: _propTypes2.default.string,
  placeholder: _propTypes2.default.string,
  onSearch: _propTypes2.default.func
};
exports.default = SearchBox;
}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"../../utility/debounce":26,"prop-types":233}],8:[function(require,module,exports){
(function (global){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

var _react = (typeof window !== "undefined" ? window['React'] : typeof global !== "undefined" ? global['React'] : null);

var _react2 = _interopRequireDefault(_react);

var _propTypes = require('prop-types');

var _propTypes2 = _interopRequireDefault(_propTypes);

var _Argument = require('./Argument');

var _Argument2 = _interopRequireDefault(_Argument);

var _TypeLink = require('./TypeLink');

var _TypeLink2 = _interopRequireDefault(_TypeLink);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; } /**
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *  Copyright (c) Facebook, Inc.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *  All rights reserved.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *  This source code is licensed under the license found in the
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *  LICENSE file in the root directory of this source tree.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                */

var SearchResults = function (_React$Component) {
  _inherits(SearchResults, _React$Component);

  function SearchResults() {
    _classCallCheck(this, SearchResults);

    return _possibleConstructorReturn(this, (SearchResults.__proto__ || Object.getPrototypeOf(SearchResults)).apply(this, arguments));
  }

  _createClass(SearchResults, [{
    key: 'shouldComponentUpdate',
    value: function shouldComponentUpdate(nextProps) {
      return this.props.schema !== nextProps.schema || this.props.searchValue !== nextProps.searchValue;
    }
  }, {
    key: 'render',
    value: function render() {
      var searchValue = this.props.searchValue;
      var withinType = this.props.withinType;
      var schema = this.props.schema;
      var onClickType = this.props.onClickType;
      var onClickField = this.props.onClickField;

      var matchedWithin = [];
      var matchedTypes = [];
      var matchedFields = [];

      var typeMap = schema.getTypeMap();
      var typeNames = Object.keys(typeMap);

      // Move the within type name to be the first searched.
      if (withinType) {
        typeNames = typeNames.filter(function (n) {
          return n !== withinType.name;
        });
        typeNames.unshift(withinType.name);
      }

      var _iteratorNormalCompletion = true;
      var _didIteratorError = false;
      var _iteratorError = undefined;

      try {
        var _loop = function _loop() {
          var typeName = _step.value;

          if (matchedWithin.length + matchedTypes.length + matchedFields.length >= 100) {
            return 'break';
          }

          var type = typeMap[typeName];
          if (withinType !== type && isMatch(typeName, searchValue)) {
            matchedTypes.push(_react2.default.createElement(
              'div',
              { className: 'doc-category-item', key: typeName },
              _react2.default.createElement(_TypeLink2.default, { type: type, onClick: onClickType })
            ));
          }

          if (type.getFields) {
            var fields = type.getFields();
            Object.keys(fields).forEach(function (fieldName) {
              var field = fields[fieldName];
              var matchingArgs = void 0;

              if (!isMatch(fieldName, searchValue)) {
                if (field.args && field.args.length) {
                  matchingArgs = field.args.filter(function (arg) {
                    return isMatch(arg.name, searchValue);
                  });
                  if (matchingArgs.length === 0) {
                    return;
                  }
                } else {
                  return;
                }
              }

              var match = _react2.default.createElement(
                'div',
                { className: 'doc-category-item', key: typeName + '.' + fieldName },
                withinType !== type && [_react2.default.createElement(_TypeLink2.default, { key: 'type', type: type, onClick: onClickType }), '.'],
                _react2.default.createElement(
                  'a',
                  {
                    className: 'field-name',
                    onClick: function onClick(event) {
                      return onClickField(field, type, event);
                    } },
                  field.name
                ),
                matchingArgs && ['(', _react2.default.createElement(
                  'span',
                  { key: 'args' },
                  matchingArgs.map(function (arg) {
                    return _react2.default.createElement(_Argument2.default, {
                      key: arg.name,
                      arg: arg,
                      onClickType: onClickType,
                      showDefaultValue: false
                    });
                  })
                ), ')']
              );

              if (withinType === type) {
                matchedWithin.push(match);
              } else {
                matchedFields.push(match);
              }
            });
          }
        };

        for (var _iterator = typeNames[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
          var _ret = _loop();

          if (_ret === 'break') break;
        }
      } catch (err) {
        _didIteratorError = true;
        _iteratorError = err;
      } finally {
        try {
          if (!_iteratorNormalCompletion && _iterator.return) {
            _iterator.return();
          }
        } finally {
          if (_didIteratorError) {
            throw _iteratorError;
          }
        }
      }

      if (matchedWithin.length + matchedTypes.length + matchedFields.length === 0) {
        return _react2.default.createElement(
          'span',
          { className: 'doc-alert-text' },
          'No results found.'
        );
      }

      if (withinType && matchedTypes.length + matchedFields.length > 0) {
        return _react2.default.createElement(
          'div',
          null,
          matchedWithin,
          _react2.default.createElement(
            'div',
            { className: 'doc-category' },
            _react2.default.createElement(
              'div',
              { className: 'doc-category-title' },
              'other results'
            ),
            matchedTypes,
            matchedFields
          )
        );
      }

      return _react2.default.createElement(
        'div',
        null,
        matchedWithin,
        matchedTypes,
        matchedFields
      );
    }
  }]);

  return SearchResults;
}(_react2.default.Component);

SearchResults.propTypes = {
  schema: _propTypes2.default.object,
  withinType: _propTypes2.default.object,
  searchValue: _propTypes2.default.string,
  onClickType: _propTypes2.default.func,
  onClickField: _propTypes2.default.func
};
exports.default = SearchResults;


function isMatch(sourceText, searchValue) {
  try {
    var escaped = searchValue.replace(/[^_0-9A-Za-z]/g, function (ch) {
      return '\\' + ch;
    });
    return sourceText.search(new RegExp(escaped, 'i')) !== -1;
  } catch (e) {
    return sourceText.toLowerCase().indexOf(searchValue.toLowerCase()) !== -1;
  }
}
}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"./Argument":2,"./TypeLink":10,"prop-types":233}],9:[function(require,module,exports){
(function (global){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

var _react = (typeof window !== "undefined" ? window['React'] : typeof global !== "undefined" ? global['React'] : null);

var _react2 = _interopRequireDefault(_react);

var _propTypes = require('prop-types');

var _propTypes2 = _interopRequireDefault(_propTypes);

var _graphql = require('graphql');

var _Argument = require('./Argument');

var _Argument2 = _interopRequireDefault(_Argument);

var _MarkdownContent = require('./MarkdownContent');

var _MarkdownContent2 = _interopRequireDefault(_MarkdownContent);

var _TypeLink = require('./TypeLink');

var _TypeLink2 = _interopRequireDefault(_TypeLink);

var _DefaultValue = require('./DefaultValue');

var _DefaultValue2 = _interopRequireDefault(_DefaultValue);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; } /**
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *  Copyright (c) Facebook, Inc.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *  All rights reserved.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *  This source code is licensed under the license found in the
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *  LICENSE file in the root directory of this source tree.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                */

var TypeDoc = function (_React$Component) {
  _inherits(TypeDoc, _React$Component);

  function TypeDoc(props) {
    _classCallCheck(this, TypeDoc);

    var _this = _possibleConstructorReturn(this, (TypeDoc.__proto__ || Object.getPrototypeOf(TypeDoc)).call(this, props));

    _this.handleShowDeprecated = function () {
      return _this.setState({ showDeprecated: true });
    };

    _this.state = { showDeprecated: false };
    return _this;
  }

  _createClass(TypeDoc, [{
    key: 'shouldComponentUpdate',
    value: function shouldComponentUpdate(nextProps, nextState) {
      return this.props.type !== nextProps.type || this.props.schema !== nextProps.schema || this.state.showDeprecated !== nextState.showDeprecated;
    }
  }, {
    key: 'render',
    value: function render() {
      var schema = this.props.schema;
      var type = this.props.type;
      var onClickType = this.props.onClickType;
      var onClickField = this.props.onClickField;

      var typesTitle = void 0;
      var types = void 0;
      if (type instanceof _graphql.GraphQLUnionType) {
        typesTitle = 'possible types';
        types = schema.getPossibleTypes(type);
      } else if (type instanceof _graphql.GraphQLInterfaceType) {
        typesTitle = 'implementations';
        types = schema.getPossibleTypes(type);
      } else if (type instanceof _graphql.GraphQLObjectType) {
        typesTitle = 'implements';
        types = type.getInterfaces();
      }

      var typesDef = void 0;
      if (types && types.length > 0) {
        typesDef = _react2.default.createElement(
          'div',
          { className: 'doc-category' },
          _react2.default.createElement(
            'div',
            { className: 'doc-category-title' },
            typesTitle
          ),
          types.map(function (subtype) {
            return _react2.default.createElement(
              'div',
              { key: subtype.name, className: 'doc-category-item' },
              _react2.default.createElement(_TypeLink2.default, { type: subtype, onClick: onClickType })
            );
          })
        );
      }

      // InputObject and Object
      var fieldsDef = void 0;
      var deprecatedFieldsDef = void 0;
      if (type.getFields) {
        var fieldMap = type.getFields();
        var fields = Object.keys(fieldMap).map(function (name) {
          return fieldMap[name];
        });
        fieldsDef = _react2.default.createElement(
          'div',
          { className: 'doc-category' },
          _react2.default.createElement(
            'div',
            { className: 'doc-category-title' },
            'fields'
          ),
          fields.filter(function (field) {
            return !field.isDeprecated;
          }).map(function (field) {
            return _react2.default.createElement(Field, {
              key: field.name,
              type: type,
              field: field,
              onClickType: onClickType,
              onClickField: onClickField
            });
          })
        );

        var deprecatedFields = fields.filter(function (field) {
          return field.isDeprecated;
        });
        if (deprecatedFields.length > 0) {
          deprecatedFieldsDef = _react2.default.createElement(
            'div',
            { className: 'doc-category' },
            _react2.default.createElement(
              'div',
              { className: 'doc-category-title' },
              'deprecated fields'
            ),
            !this.state.showDeprecated ? _react2.default.createElement(
              'button',
              { className: 'show-btn', onClick: this.handleShowDeprecated },
              'Show deprecated fields...'
            ) : deprecatedFields.map(function (field) {
              return _react2.default.createElement(Field, {
                key: field.name,
                type: type,
                field: field,
                onClickType: onClickType,
                onClickField: onClickField
              });
            })
          );
        }
      }

      var valuesDef = void 0;
      var deprecatedValuesDef = void 0;
      if (type instanceof _graphql.GraphQLEnumType) {
        var values = type.getValues();
        valuesDef = _react2.default.createElement(
          'div',
          { className: 'doc-category' },
          _react2.default.createElement(
            'div',
            { className: 'doc-category-title' },
            'values'
          ),
          values.filter(function (value) {
            return !value.isDeprecated;
          }).map(function (value) {
            return _react2.default.createElement(EnumValue, { key: value.name, value: value });
          })
        );

        var deprecatedValues = values.filter(function (value) {
          return value.isDeprecated;
        });
        if (deprecatedValues.length > 0) {
          deprecatedValuesDef = _react2.default.createElement(
            'div',
            { className: 'doc-category' },
            _react2.default.createElement(
              'div',
              { className: 'doc-category-title' },
              'deprecated values'
            ),
            !this.state.showDeprecated ? _react2.default.createElement(
              'button',
              { className: 'show-btn', onClick: this.handleShowDeprecated },
              'Show deprecated values...'
            ) : deprecatedValues.map(function (value) {
              return _react2.default.createElement(EnumValue, { key: value.name, value: value });
            })
          );
        }
      }

      return _react2.default.createElement(
        'div',
        null,
        _react2.default.createElement(_MarkdownContent2.default, {
          className: 'doc-type-description',
          markdown: type.description || 'No Description'
        }),
        type instanceof _graphql.GraphQLObjectType && typesDef,
        fieldsDef,
        deprecatedFieldsDef,
        valuesDef,
        deprecatedValuesDef,
        !(type instanceof _graphql.GraphQLObjectType) && typesDef
      );
    }
  }]);

  return TypeDoc;
}(_react2.default.Component);

TypeDoc.propTypes = {
  schema: _propTypes2.default.instanceOf(_graphql.GraphQLSchema),
  type: _propTypes2.default.object,
  onClickType: _propTypes2.default.func,
  onClickField: _propTypes2.default.func
};
exports.default = TypeDoc;


function Field(_ref) {
  var type = _ref.type,
      field = _ref.field,
      onClickType = _ref.onClickType,
      onClickField = _ref.onClickField;

  return _react2.default.createElement(
    'div',
    { className: 'doc-category-item' },
    _react2.default.createElement(
      'a',
      {
        className: 'field-name',
        onClick: function onClick(event) {
          return onClickField(field, type, event);
        } },
      field.name
    ),
    field.args && field.args.length > 0 && ['(', _react2.default.createElement(
      'span',
      { key: 'args' },
      field.args.map(function (arg) {
        return _react2.default.createElement(_Argument2.default, { key: arg.name, arg: arg, onClickType: onClickType });
      })
    ), ')'],
    ': ',
    _react2.default.createElement(_TypeLink2.default, { type: field.type, onClick: onClickType }),
    _react2.default.createElement(_DefaultValue2.default, { field: field }),
    field.description && _react2.default.createElement(_MarkdownContent2.default, {
      className: 'field-short-description',
      markdown: field.description
    }),
    field.deprecationReason && _react2.default.createElement(_MarkdownContent2.default, {
      className: 'doc-deprecation',
      markdown: field.deprecationReason
    })
  );
}

Field.propTypes = {
  type: _propTypes2.default.object,
  field: _propTypes2.default.object,
  onClickType: _propTypes2.default.func,
  onClickField: _propTypes2.default.func
};

function EnumValue(_ref2) {
  var value = _ref2.value;

  return _react2.default.createElement(
    'div',
    { className: 'doc-category-item' },
    _react2.default.createElement(
      'div',
      { className: 'enum-value' },
      value.name
    ),
    _react2.default.createElement(_MarkdownContent2.default, {
      className: 'doc-value-description',
      markdown: value.description
    }),
    value.deprecationReason && _react2.default.createElement(_MarkdownContent2.default, {
      className: 'doc-deprecation',
      markdown: value.deprecationReason
    })
  );
}

EnumValue.propTypes = {
  value: _propTypes2.default.object
};
}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"./Argument":2,"./DefaultValue":3,"./MarkdownContent":5,"./TypeLink":10,"graphql":95,"prop-types":233}],10:[function(require,module,exports){
(function (global){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

var _react = (typeof window !== "undefined" ? window['React'] : typeof global !== "undefined" ? global['React'] : null);

var _react2 = _interopRequireDefault(_react);

var _propTypes = require('prop-types');

var _propTypes2 = _interopRequireDefault(_propTypes);

var _graphql = require('graphql');

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; } /**
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *  Copyright (c) Facebook, Inc.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *  All rights reserved.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *  This source code is licensed under the license found in the
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *  LICENSE file in the root directory of this source tree.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                */

var TypeLink = function (_React$Component) {
  _inherits(TypeLink, _React$Component);

  function TypeLink() {
    _classCallCheck(this, TypeLink);

    return _possibleConstructorReturn(this, (TypeLink.__proto__ || Object.getPrototypeOf(TypeLink)).apply(this, arguments));
  }

  _createClass(TypeLink, [{
    key: 'shouldComponentUpdate',
    value: function shouldComponentUpdate(nextProps) {
      return this.props.type !== nextProps.type;
    }
  }, {
    key: 'render',
    value: function render() {
      return renderType(this.props.type, this.props.onClick);
    }
  }]);

  return TypeLink;
}(_react2.default.Component);

TypeLink.propTypes = {
  type: _propTypes2.default.object,
  onClick: _propTypes2.default.func
};
exports.default = TypeLink;


function renderType(type, _onClick) {
  if (type instanceof _graphql.GraphQLNonNull) {
    return _react2.default.createElement(
      'span',
      null,
      renderType(type.ofType, _onClick),
      '!'
    );
  }
  if (type instanceof _graphql.GraphQLList) {
    return _react2.default.createElement(
      'span',
      null,
      '[',
      renderType(type.ofType, _onClick),
      ']'
    );
  }
  return _react2.default.createElement(
    'a',
    { className: 'type-name', onClick: function onClick(event) {
        return _onClick(type, event);
      } },
    type.name
  );
}
}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"graphql":95,"prop-types":233}],11:[function(require,module,exports){
(function (global){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.ExecuteButton = undefined;

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

var _react = (typeof window !== "undefined" ? window['React'] : typeof global !== "undefined" ? global['React'] : null);

var _react2 = _interopRequireDefault(_react);

var _propTypes = require('prop-types');

var _propTypes2 = _interopRequireDefault(_propTypes);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; } /**
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *  Copyright (c) Facebook, Inc.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *  All rights reserved.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *  This source code is licensed under the license found in the
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *  LICENSE file in the root directory of this source tree.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                */

/**
 * ExecuteButton
 *
 * What a nice round shiny button. Shows a drop-down when there are multiple
 * queries to run.
 */
var ExecuteButton = exports.ExecuteButton = function (_React$Component) {
  _inherits(ExecuteButton, _React$Component);

  function ExecuteButton(props) {
    _classCallCheck(this, ExecuteButton);

    var _this = _possibleConstructorReturn(this, (ExecuteButton.__proto__ || Object.getPrototypeOf(ExecuteButton)).call(this, props));

    _this._onClick = function () {
      if (_this.props.isRunning) {
        _this.props.onStop();
      } else {
        _this.props.onRun();
      }
    };

    _this._onOptionSelected = function (operation) {
      _this.setState({ optionsOpen: false });
      _this.props.onRun(operation.name && operation.name.value);
    };

    _this._onOptionsOpen = function (downEvent) {
      var initialPress = true;
      var downTarget = downEvent.target;
      _this.setState({ highlight: null, optionsOpen: true });

      var _onMouseUp = function onMouseUp(upEvent) {
        if (initialPress && upEvent.target === downTarget) {
          initialPress = false;
        } else {
          document.removeEventListener('mouseup', _onMouseUp);
          _onMouseUp = null;
          var isOptionsMenuClicked = downTarget.parentNode.compareDocumentPosition(upEvent.target) & Node.DOCUMENT_POSITION_CONTAINED_BY;
          if (!isOptionsMenuClicked) {
            // menu calls setState if it was clicked
            _this.setState({ optionsOpen: false });
          }
        }
      };

      document.addEventListener('mouseup', _onMouseUp);
    };

    _this.state = {
      optionsOpen: false,
      highlight: null
    };
    return _this;
  }

  _createClass(ExecuteButton, [{
    key: 'render',
    value: function render() {
      var _this2 = this;

      var operations = this.props.operations;
      var optionsOpen = this.state.optionsOpen;
      var hasOptions = operations && operations.length > 1;

      var options = null;
      if (hasOptions && optionsOpen) {
        var highlight = this.state.highlight;
        options = _react2.default.createElement(
          'ul',
          { className: 'execute-options' },
          operations.map(function (operation) {
            return _react2.default.createElement(
              'li',
              {
                key: operation.name ? operation.name.value : '*',
                className: operation === highlight && 'selected' || null,
                onMouseOver: function onMouseOver() {
                  return _this2.setState({ highlight: operation });
                },
                onMouseOut: function onMouseOut() {
                  return _this2.setState({ highlight: null });
                },
                onMouseUp: function onMouseUp() {
                  return _this2._onOptionSelected(operation);
                } },
              operation.name ? operation.name.value : '<Unnamed>'
            );
          })
        );
      }

      // Allow click event if there is a running query or if there are not options
      // for which operation to run.
      var onClick = void 0;
      if (this.props.isRunning || !hasOptions) {
        onClick = this._onClick;
      }

      // Allow mouse down if there is no running query, there are options for
      // which operation to run, and the dropdown is currently closed.
      var onMouseDown = void 0;
      if (!this.props.isRunning && hasOptions && !optionsOpen) {
        onMouseDown = this._onOptionsOpen;
      }

      var pathJSX = this.props.isRunning ? _react2.default.createElement('path', { d: 'M 10 10 L 23 10 L 23 23 L 10 23 z' }) : _react2.default.createElement('path', { d: 'M 11 9 L 24 16 L 11 23 z' });

      return _react2.default.createElement(
        'div',
        { className: 'execute-button-wrap' },
        _react2.default.createElement(
          'button',
          {
            type: 'button',
            className: 'execute-button',
            onMouseDown: onMouseDown,
            onClick: onClick,
            title: 'Execute Query (Ctrl-Enter)' },
          _react2.default.createElement(
            'svg',
            { width: '34', height: '34' },
            pathJSX
          )
        ),
        options
      );
    }
  }]);

  return ExecuteButton;
}(_react2.default.Component);

ExecuteButton.propTypes = {
  onRun: _propTypes2.default.func,
  onStop: _propTypes2.default.func,
  isRunning: _propTypes2.default.bool,
  operations: _propTypes2.default.array
};
}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"prop-types":233}],12:[function(require,module,exports){
(function (global){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.GraphiQL = undefined;

var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };

var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

var _react = (typeof window !== "undefined" ? window['React'] : typeof global !== "undefined" ? global['React'] : null);

var _react2 = _interopRequireDefault(_react);

var _propTypes = require('prop-types');

var _propTypes2 = _interopRequireDefault(_propTypes);

var _reactDom = (typeof window !== "undefined" ? window['ReactDOM'] : typeof global !== "undefined" ? global['ReactDOM'] : null);

var _reactDom2 = _interopRequireDefault(_reactDom);

var _graphql = require('graphql');

var _ExecuteButton = require('./ExecuteButton');

var _ToolbarButton = require('./ToolbarButton');

var _ToolbarGroup = require('./ToolbarGroup');

var _ToolbarMenu = require('./ToolbarMenu');

var _ToolbarSelect = require('./ToolbarSelect');

var _QueryEditor = require('./QueryEditor');

var _VariableEditor = require('./VariableEditor');

var _ResultViewer = require('./ResultViewer');

var _DocExplorer = require('./DocExplorer');

var _QueryHistory = require('./QueryHistory');

var _CodeMirrorSizer = require('../utility/CodeMirrorSizer');

var _CodeMirrorSizer2 = _interopRequireDefault(_CodeMirrorSizer);

var _StorageAPI = require('../utility/StorageAPI');

var _StorageAPI2 = _interopRequireDefault(_StorageAPI);

var _getQueryFacts = require('../utility/getQueryFacts');

var _getQueryFacts2 = _interopRequireDefault(_getQueryFacts);

var _getSelectedOperationName = require('../utility/getSelectedOperationName');

var _getSelectedOperationName2 = _interopRequireDefault(_getSelectedOperationName);

var _debounce = require('../utility/debounce');

var _debounce2 = _interopRequireDefault(_debounce);

var _find = require('../utility/find');

var _find2 = _interopRequireDefault(_find);

var _fillLeafs2 = require('../utility/fillLeafs');

var _elementPosition = require('../utility/elementPosition');

var _introspectionQueries = require('../utility/introspectionQueries');

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; } /**
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *  Copyright (c) Facebook, Inc.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *  All rights reserved.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *  This source code is licensed under the license found in the
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *  LICENSE file in the root directory of this source tree.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                */

var DEFAULT_DOC_EXPLORER_WIDTH = 350;

/**
 * The top-level React component for GraphiQL, intended to encompass the entire
 * browser viewport.
 *
 * @see https://github.com/graphql/graphiql#usage
 */

var GraphiQL = exports.GraphiQL = function (_React$Component) {
  _inherits(GraphiQL, _React$Component);

  function GraphiQL(props) {
    _classCallCheck(this, GraphiQL);

    // Ensure props are correct
    var _this = _possibleConstructorReturn(this, (GraphiQL.__proto__ || Object.getPrototypeOf(GraphiQL)).call(this, props));

    _initialiseProps.call(_this);

    if (typeof props.fetcher !== 'function') {
      throw new TypeError('GraphiQL requires a fetcher function.');
    }

    // Cache the storage instance
    _this._storage = new _StorageAPI2.default(props.storage);

    // Determine the initial query to display.
    var query = props.query !== undefined ? props.query : _this._storage.get('query') !== null ? _this._storage.get('query') : props.defaultQuery !== undefined ? props.defaultQuery : defaultQuery;

    // Get the initial query facts.
    var queryFacts = (0, _getQueryFacts2.default)(props.schema, query);

    // Determine the initial variables to display.
    var variables = props.variables !== undefined ? props.variables : _this._storage.get('variables');

    // Determine the initial operationName to use.
    var operationName = props.operationName !== undefined ? props.operationName : (0, _getSelectedOperationName2.default)(null, _this._storage.get('operationName'), queryFacts && queryFacts.operations);

    // Initialize state
    _this.state = _extends({
      schema: props.schema,
      query: query,
      variables: variables,
      operationName: operationName,
      response: props.response,
      editorFlex: Number(_this._storage.get('editorFlex')) || 1,
      variableEditorOpen: Boolean(variables),
      variableEditorHeight: Number(_this._storage.get('variableEditorHeight')) || 200,
      docExplorerOpen: _this._storage.get('docExplorerOpen') === 'true' || false,
      historyPaneOpen: _this._storage.get('historyPaneOpen') === 'true' || false,
      docExplorerWidth: Number(_this._storage.get('docExplorerWidth')) || DEFAULT_DOC_EXPLORER_WIDTH,
      isWaitingForResponse: false,
      subscription: null
    }, queryFacts);

    // Ensure only the last executed editor query is rendered.
    _this._editorQueryID = 0;

    // Subscribe to the browser window closing, treating it as an unmount.
    if ((typeof window === 'undefined' ? 'undefined' : _typeof(window)) === 'object') {
      window.addEventListener('beforeunload', function () {
        return _this.componentWillUnmount();
      });
    }
    return _this;
  }

  _createClass(GraphiQL, [{
    key: 'componentDidMount',
    value: function componentDidMount() {
      // Only fetch schema via introspection if a schema has not been
      // provided, including if `null` was provided.
      if (this.state.schema === undefined) {
        this._fetchSchema();
      }

      // Utility for keeping CodeMirror correctly sized.
      this.codeMirrorSizer = new _CodeMirrorSizer2.default();

      global.g = this;
    }
  }, {
    key: 'componentWillReceiveProps',
    value: function componentWillReceiveProps(nextProps) {
      var _this2 = this;

      var nextSchema = this.state.schema;
      var nextQuery = this.state.query;
      var nextVariables = this.state.variables;
      var nextOperationName = this.state.operationName;
      var nextResponse = this.state.response;

      if (nextProps.schema !== undefined) {
        nextSchema = nextProps.schema;
      }
      if (nextProps.query !== undefined) {
        nextQuery = nextProps.query;
      }
      if (nextProps.variables !== undefined) {
        nextVariables = nextProps.variables;
      }
      if (nextProps.operationName !== undefined) {
        nextOperationName = nextProps.operationName;
      }
      if (nextProps.response !== undefined) {
        nextResponse = nextProps.response;
      }
      if (nextSchema !== this.state.schema || nextQuery !== this.state.query || nextOperationName !== this.state.operationName) {
        var updatedQueryAttributes = this._updateQueryFacts(nextQuery, nextOperationName, this.state.operations, nextSchema);

        if (updatedQueryAttributes !== undefined) {
          nextOperationName = updatedQueryAttributes.operationName;

          this.setState(updatedQueryAttributes);
        }
      }

      // If schema is not supplied via props and the fetcher changed, then
      // remove the schema so fetchSchema() will be called with the new fetcher.
      if (nextProps.schema === undefined && nextProps.fetcher !== this.props.fetcher) {
        nextSchema = undefined;
      }

      this.setState({
        schema: nextSchema,
        query: nextQuery,
        variables: nextVariables,
        operationName: nextOperationName,
        response: nextResponse
      }, function () {
        if (_this2.state.schema === undefined) {
          _this2.docExplorerComponent.reset();
          _this2._fetchSchema();
        }
      });
    }
  }, {
    key: 'componentDidUpdate',
    value: function componentDidUpdate() {
      // If this update caused DOM nodes to have changed sizes, update the
      // corresponding CodeMirror instance sizes to match.
      this.codeMirrorSizer.updateSizes([this.queryEditorComponent, this.variableEditorComponent, this.resultComponent]);
    }

    // When the component is about to unmount, store any persistable state, such
    // that when the component is remounted, it will use the last used values.

  }, {
    key: 'componentWillUnmount',
    value: function componentWillUnmount() {
      this._storage.set('query', this.state.query);
      this._storage.set('variables', this.state.variables);
      this._storage.set('operationName', this.state.operationName);
      this._storage.set('editorFlex', this.state.editorFlex);
      this._storage.set('variableEditorHeight', this.state.variableEditorHeight);
      this._storage.set('docExplorerWidth', this.state.docExplorerWidth);
      this._storage.set('docExplorerOpen', this.state.docExplorerOpen);
      this._storage.set('historyPaneOpen', this.state.historyPaneOpen);
    }
  }, {
    key: 'render',
    value: function render() {
      var _this3 = this;

      var children = _react2.default.Children.toArray(this.props.children);

      var logo = (0, _find2.default)(children, function (child) {
        return child.type === GraphiQL.Logo;
      }) || _react2.default.createElement(GraphiQL.Logo, null);

      var toolbar = (0, _find2.default)(children, function (child) {
        return child.type === GraphiQL.Toolbar;
      }) || _react2.default.createElement(
        GraphiQL.Toolbar,
        null,
        _react2.default.createElement(_ToolbarButton.ToolbarButton, {
          onClick: this.handlePrettifyQuery,
          title: 'Prettify Query (Shift-Ctrl-P)',
          label: 'Prettify'
        }),
        _react2.default.createElement(_ToolbarButton.ToolbarButton, {
          onClick: this.handleToggleHistory,
          title: 'Show History',
          label: 'History'
        })
      );

      var footer = (0, _find2.default)(children, function (child) {
        return child.type === GraphiQL.Footer;
      });

      var queryWrapStyle = {
        WebkitFlex: this.state.editorFlex,
        flex: this.state.editorFlex
      };

      var docWrapStyle = {
        display: this.state.docExplorerOpen ? 'block' : 'none',
        width: this.state.docExplorerWidth
      };
      var docExplorerWrapClasses = 'docExplorerWrap' + (this.state.docExplorerWidth < 200 ? ' doc-explorer-narrow' : '');

      var historyPaneStyle = {
        display: this.state.historyPaneOpen ? 'block' : 'none',
        width: '230px',
        zIndex: '7'
      };

      var variableOpen = this.state.variableEditorOpen;
      var variableStyle = {
        height: variableOpen ? this.state.variableEditorHeight : null
      };

      return _react2.default.createElement(
        'div',
        { className: 'graphiql-container' },
        _react2.default.createElement(
          'div',
          { className: 'historyPaneWrap', style: historyPaneStyle },
          _react2.default.createElement(
            _QueryHistory.QueryHistory,
            {
              operationName: this.state.operationName,
              query: this.state.query,
              variables: this.state.variables,
              onSelectQuery: this.handleSelectHistoryQuery,
              storage: this._storage,
              queryID: this._editorQueryID },
            _react2.default.createElement(
              'div',
              { className: 'docExplorerHide', onClick: this.handleToggleHistory },
              '\u2715'
            )
          )
        ),
        _react2.default.createElement(
          'div',
          { className: 'editorWrap' },
          _react2.default.createElement(
            'div',
            { className: 'topBarWrap' },
            _react2.default.createElement(
              'div',
              { className: 'topBar' },
              logo,
              _react2.default.createElement(_ExecuteButton.ExecuteButton, {
                isRunning: Boolean(this.state.subscription),
                onRun: this.handleRunQuery,
                onStop: this.handleStopQuery,
                operations: this.state.operations
              }),
              toolbar
            ),
            !this.state.docExplorerOpen && _react2.default.createElement(
              'button',
              {
                className: 'docExplorerShow',
                onClick: this.handleToggleDocs },
              'Docs'
            )
          ),
          _react2.default.createElement(
            'div',
            {
              ref: function ref(n) {
                _this3.editorBarComponent = n;
              },
              className: 'editorBar',
              onDoubleClick: this.handleResetResize,
              onMouseDown: this.handleResizeStart },
            _react2.default.createElement(
              'div',
              { className: 'queryWrap', style: queryWrapStyle },
              _react2.default.createElement(_QueryEditor.QueryEditor, {
                ref: function ref(n) {
                  _this3.queryEditorComponent = n;
                },
                schema: this.state.schema,
                value: this.state.query,
                onEdit: this.handleEditQuery,
                onHintInformationRender: this.handleHintInformationRender,
                onClickReference: this.handleClickReference,
                onPrettifyQuery: this.handlePrettifyQuery,
                onRunQuery: this.handleEditorRunQuery,
                editorTheme: this.props.editorTheme
              }),
              _react2.default.createElement(
                'div',
                { className: 'variable-editor', style: variableStyle },
                _react2.default.createElement(
                  'div',
                  {
                    className: 'variable-editor-title',
                    style: { cursor: variableOpen ? 'row-resize' : 'n-resize' },
                    onMouseDown: this.handleVariableResizeStart },
                  'Variables'
                ),
                _react2.default.createElement(_VariableEditor.VariableEditor, {
                  ref: function ref(n) {
                    _this3.variableEditorComponent = n;
                  },
                  value: this.state.variables,
                  variableToType: this.state.variableToType,
                  onEdit: this.handleEditVariables,
                  onHintInformationRender: this.handleHintInformationRender,
                  onPrettifyQuery: this.handlePrettifyQuery,
                  onRunQuery: this.handleEditorRunQuery,
                  editorTheme: this.props.editorTheme
                })
              )
            ),
            _react2.default.createElement(
              'div',
              { className: 'resultWrap' },
              this.state.isWaitingForResponse && _react2.default.createElement(
                'div',
                { className: 'spinner-container' },
                _react2.default.createElement('div', { className: 'spinner' })
              ),
              _react2.default.createElement(_ResultViewer.ResultViewer, {
                ref: function ref(c) {
                  _this3.resultComponent = c;
                },
                value: this.state.response,
                editorTheme: this.props.editorTheme,
                ResultsTooltip: this.props.ResultsTooltip
              }),
              footer
            )
          )
        ),
        _react2.default.createElement(
          'div',
          { className: docExplorerWrapClasses, style: docWrapStyle },
          _react2.default.createElement('div', {
            className: 'docExplorerResizer',
            onDoubleClick: this.handleDocsResetResize,
            onMouseDown: this.handleDocsResizeStart
          }),
          _react2.default.createElement(
            _DocExplorer.DocExplorer,
            {
              ref: function ref(c) {
                _this3.docExplorerComponent = c;
              },
              schema: this.state.schema },
            _react2.default.createElement(
              'div',
              { className: 'docExplorerHide', onClick: this.handleToggleDocs },
              '\u2715'
            )
          )
        )
      );
    }

    /**
     * Get the query editor CodeMirror instance.
     *
     * @public
     */

  }, {
    key: 'getQueryEditor',
    value: function getQueryEditor() {
      return this.queryEditorComponent.getCodeMirror();
    }

    /**
     * Get the variable editor CodeMirror instance.
     *
     * @public
     */

  }, {
    key: 'getVariableEditor',
    value: function getVariableEditor() {
      return this.variableEditorComponent.getCodeMirror();
    }

    /**
     * Refresh all CodeMirror instances.
     *
     * @public
     */

  }, {
    key: 'refresh',
    value: function refresh() {
      this.queryEditorComponent.getCodeMirror().refresh();
      this.variableEditorComponent.getCodeMirror().refresh();
      this.resultComponent.getCodeMirror().refresh();
    }

    /**
     * Inspect the query, automatically filling in selection sets for non-leaf
     * fields which do not yet have them.
     *
     * @public
     */

  }, {
    key: 'autoCompleteLeafs',
    value: function autoCompleteLeafs() {
      var _fillLeafs = (0, _fillLeafs2.fillLeafs)(this.state.schema, this.state.query, this.props.getDefaultFieldNames),
          insertions = _fillLeafs.insertions,
          result = _fillLeafs.result;

      if (insertions && insertions.length > 0) {
        var editor = this.getQueryEditor();
        editor.operation(function () {
          var cursor = editor.getCursor();
          var cursorIndex = editor.indexFromPos(cursor);
          editor.setValue(result);
          var added = 0;
          var markers = insertions.map(function (_ref) {
            var index = _ref.index,
                string = _ref.string;
            return editor.markText(editor.posFromIndex(index + added), editor.posFromIndex(index + (added += string.length)), {
              className: 'autoInsertedLeaf',
              clearOnEnter: true,
              title: 'Automatically added leaf fields'
            });
          });
          setTimeout(function () {
            return markers.forEach(function (marker) {
              return marker.clear();
            });
          }, 7000);
          var newCursorIndex = cursorIndex;
          insertions.forEach(function (_ref2) {
            var index = _ref2.index,
                string = _ref2.string;

            if (index < cursorIndex) {
              newCursorIndex += string.length;
            }
          });
          editor.setCursor(editor.posFromIndex(newCursorIndex));
        });
      }

      return result;
    }

    // Private methods

  }, {
    key: '_fetchSchema',
    value: function _fetchSchema() {
      var _this4 = this;

      var fetcher = this.props.fetcher;

      var fetch = observableToPromise(fetcher({ query: _introspectionQueries.introspectionQuery }));
      if (!isPromise(fetch)) {
        this.setState({
          response: 'Fetcher did not return a Promise for introspection.'
        });
        return;
      }

      fetch.then(function (result) {
        if (result.data) {
          return result;
        }

        // Try the stock introspection query first, falling back on the
        // sans-subscriptions query for services which do not yet support it.
        var fetch2 = observableToPromise(fetcher({
          query: _introspectionQueries.introspectionQuerySansSubscriptions
        }));
        if (!isPromise(fetch)) {
          throw new Error('Fetcher did not return a Promise for introspection.');
        }
        return fetch2;
      }).then(function (result) {
        // If a schema was provided while this fetch was underway, then
        // satisfy the race condition by respecting the already
        // provided schema.
        if (_this4.state.schema !== undefined) {
          return;
        }

        if (result && result.data) {
          var schema = (0, _graphql.buildClientSchema)(result.data);
          var queryFacts = (0, _getQueryFacts2.default)(schema, _this4.state.query);
          _this4.setState(_extends({ schema: schema }, queryFacts));
        } else {
          var responseString = typeof result === 'string' ? result : JSON.stringify(result, null, 2);
          _this4.setState({
            // Set schema to `null` to explicitly indicate that no schema exists.
            schema: null,
            response: responseString
          });
        }
      }).catch(function (error) {
        _this4.setState({
          schema: null,
          response: error && String(error.stack || error)
        });
      });
    }
  }, {
    key: '_fetchQuery',
    value: function _fetchQuery(query, variables, operationName, cb) {
      var _this5 = this;

      var fetcher = this.props.fetcher;
      var jsonVariables = null;

      try {
        jsonVariables = variables && variables.trim() !== '' ? JSON.parse(variables) : null;
      } catch (error) {
        throw new Error('Variables are invalid JSON: ' + error.message + '.');
      }

      if ((typeof jsonVariables === 'undefined' ? 'undefined' : _typeof(jsonVariables)) !== 'object') {
        throw new Error('Variables are not a JSON object.');
      }

      var fetch = fetcher({
        query: query,
        variables: jsonVariables,
        operationName: operationName
      });

      if (isPromise(fetch)) {
        // If fetcher returned a Promise, then call the callback when the promise
        // resolves, otherwise handle the error.
        fetch.then(cb).catch(function (error) {
          _this5.setState({
            isWaitingForResponse: false,
            response: error && String(error.stack || error)
          });
        });
      } else if (isObservable(fetch)) {
        // If the fetcher returned an Observable, then subscribe to it, calling
        // the callback on each next value, and handling both errors and the
        // completion of the Observable. Returns a Subscription object.
        var subscription = fetch.subscribe({
          next: cb,
          error: function error(_error) {
            _this5.setState({
              isWaitingForResponse: false,
              response: _error && String(_error.stack || _error),
              subscription: null
            });
          },
          complete: function complete() {
            _this5.setState({
              isWaitingForResponse: false,
              subscription: null
            });
          }
        });

        return subscription;
      } else {
        throw new Error('Fetcher did not return Promise or Observable.');
      }
    }
  }, {
    key: '_runQueryAtCursor',
    value: function _runQueryAtCursor() {
      if (this.state.subscription) {
        this.handleStopQuery();
        return;
      }

      var operationName = void 0;
      var operations = this.state.operations;
      if (operations) {
        var editor = this.getQueryEditor();
        if (editor.hasFocus()) {
          var cursor = editor.getCursor();
          var cursorIndex = editor.indexFromPos(cursor);

          // Loop through all operations to see if one contains the cursor.
          for (var i = 0; i < operations.length; i++) {
            var operation = operations[i];
            if (operation.loc.start <= cursorIndex && operation.loc.end >= cursorIndex) {
              operationName = operation.name && operation.name.value;
              break;
            }
          }
        }
      }

      this.handleRunQuery(operationName);
    }
  }, {
    key: '_didClickDragBar',
    value: function _didClickDragBar(event) {
      // Only for primary unmodified clicks
      if (event.button !== 0 || event.ctrlKey) {
        return false;
      }
      var target = event.target;
      // We use codemirror's gutter as the drag bar.
      if (target.className.indexOf('CodeMirror-gutter') !== 0) {
        return false;
      }
      // Specifically the result window's drag bar.
      var resultWindow = _reactDom2.default.findDOMNode(this.resultComponent);
      while (target) {
        if (target === resultWindow) {
          return true;
        }
        target = target.parentNode;
      }
      return false;
    }
  }]);

  return GraphiQL;
}(_react2.default.Component);

// Configure the UI by providing this Component as a child of GraphiQL.


GraphiQL.propTypes = {
  fetcher: _propTypes2.default.func.isRequired,
  schema: _propTypes2.default.instanceOf(_graphql.GraphQLSchema),
  query: _propTypes2.default.string,
  variables: _propTypes2.default.string,
  operationName: _propTypes2.default.string,
  response: _propTypes2.default.string,
  storage: _propTypes2.default.shape({
    getItem: _propTypes2.default.func,
    setItem: _propTypes2.default.func,
    removeItem: _propTypes2.default.func
  }),
  defaultQuery: _propTypes2.default.string,
  onEditQuery: _propTypes2.default.func,
  onEditVariables: _propTypes2.default.func,
  onEditOperationName: _propTypes2.default.func,
  onToggleDocs: _propTypes2.default.func,
  getDefaultFieldNames: _propTypes2.default.func,
  editorTheme: _propTypes2.default.string,
  onToggleHistory: _propTypes2.default.func,
  ResultsTooltip: _propTypes2.default.any
};

var _initialiseProps = function _initialiseProps() {
  var _this6 = this;

  this.handleClickReference = function (reference) {
    _this6.setState({ docExplorerOpen: true }, function () {
      _this6.docExplorerComponent.showDocForReference(reference);
    });
  };

  this.handleRunQuery = function (selectedOperationName) {
    _this6._editorQueryID++;
    var queryID = _this6._editorQueryID;

    // Use the edited query after autoCompleteLeafs() runs or,
    // in case autoCompletion fails (the function returns undefined),
    // the current query from the editor.
    var editedQuery = _this6.autoCompleteLeafs() || _this6.state.query;
    var variables = _this6.state.variables;
    var operationName = _this6.state.operationName;

    // If an operation was explicitly provided, different from the current
    // operation name, then report that it changed.
    if (selectedOperationName && selectedOperationName !== operationName) {
      operationName = selectedOperationName;
      _this6.handleEditOperationName(operationName);
    }

    try {
      _this6.setState({
        isWaitingForResponse: true,
        response: null,
        operationName: operationName
      });

      // _fetchQuery may return a subscription.
      var subscription = _this6._fetchQuery(editedQuery, variables, operationName, function (result) {
        if (queryID === _this6._editorQueryID) {
          _this6.setState({
            isWaitingForResponse: false,
            response: JSON.stringify(result, null, 2)
          });
        }
      });

      _this6.setState({ subscription: subscription });
    } catch (error) {
      _this6.setState({
        isWaitingForResponse: false,
        response: error.message
      });
    }
  };

  this.handleStopQuery = function () {
    var subscription = _this6.state.subscription;
    _this6.setState({
      isWaitingForResponse: false,
      subscription: null
    });
    if (subscription) {
      subscription.unsubscribe();
    }
  };

  this.handlePrettifyQuery = function () {
    var editor = _this6.getQueryEditor();
    editor.setValue((0, _graphql.print)((0, _graphql.parse)(editor.getValue())));
  };

  this.handleEditQuery = (0, _debounce2.default)(100, function (value) {
    var queryFacts = _this6._updateQueryFacts(value, _this6.state.operationName, _this6.state.operations, _this6.state.schema);
    _this6.setState(_extends({
      query: value
    }, queryFacts));
    if (_this6.props.onEditQuery) {
      return _this6.props.onEditQuery(value);
    }
  });

  this._updateQueryFacts = function (query, operationName, prevOperations, schema) {
    var queryFacts = (0, _getQueryFacts2.default)(schema, query);
    if (queryFacts) {
      // Update operation name should any query names change.
      var updatedOperationName = (0, _getSelectedOperationName2.default)(prevOperations, operationName, queryFacts.operations);

      // Report changing of operationName if it changed.
      var onEditOperationName = _this6.props.onEditOperationName;
      if (onEditOperationName && operationName !== updatedOperationName) {
        onEditOperationName(updatedOperationName);
      }

      return _extends({
        operationName: updatedOperationName
      }, queryFacts);
    }
  };

  this.handleEditVariables = function (value) {
    _this6.setState({ variables: value });
    if (_this6.props.onEditVariables) {
      _this6.props.onEditVariables(value);
    }
  };

  this.handleEditOperationName = function (operationName) {
    var onEditOperationName = _this6.props.onEditOperationName;
    if (onEditOperationName) {
      onEditOperationName(operationName);
    }
  };

  this.handleHintInformationRender = function (elem) {
    elem.addEventListener('click', _this6._onClickHintInformation);

    var _onRemoveFn = void 0;
    elem.addEventListener('DOMNodeRemoved', _onRemoveFn = function onRemoveFn() {
      elem.removeEventListener('DOMNodeRemoved', _onRemoveFn);
      elem.removeEventListener('click', _this6._onClickHintInformation);
    });
  };

  this.handleEditorRunQuery = function () {
    _this6._runQueryAtCursor();
  };

  this._onClickHintInformation = function (event) {
    if (event.target.className === 'typeName') {
      var typeName = event.target.innerHTML;
      var schema = _this6.state.schema;
      if (schema) {
        var type = schema.getType(typeName);
        if (type) {
          _this6.setState({ docExplorerOpen: true }, function () {
            _this6.docExplorerComponent.showDoc(type);
          });
        }
      }
    }
  };

  this.handleToggleDocs = function () {
    if (typeof _this6.props.onToggleDocs === 'function') {
      _this6.props.onToggleDocs(!_this6.state.docExplorerOpen);
    }
    _this6.setState({ docExplorerOpen: !_this6.state.docExplorerOpen });
  };

  this.handleToggleHistory = function () {
    if (typeof _this6.props.onToggleHistory === 'function') {
      _this6.props.onToggleHistory(!_this6.state.historyPaneOpen);
    }
    _this6.setState({ historyPaneOpen: !_this6.state.historyPaneOpen });
  };

  this.handleSelectHistoryQuery = function (query, variables, operationName) {
    _this6.handleEditQuery(query);
    _this6.handleEditVariables(variables);
    _this6.handleEditOperationName(operationName);
  };

  this.handleResizeStart = function (downEvent) {
    if (!_this6._didClickDragBar(downEvent)) {
      return;
    }

    downEvent.preventDefault();

    var offset = downEvent.clientX - (0, _elementPosition.getLeft)(downEvent.target);

    var onMouseMove = function onMouseMove(moveEvent) {
      if (moveEvent.buttons === 0) {
        return onMouseUp();
      }

      var editorBar = _reactDom2.default.findDOMNode(_this6.editorBarComponent);
      var leftSize = moveEvent.clientX - (0, _elementPosition.getLeft)(editorBar) - offset;
      var rightSize = editorBar.clientWidth - leftSize;
      _this6.setState({ editorFlex: leftSize / rightSize });
    };

    var onMouseUp = function (_onMouseUp) {
      function onMouseUp() {
        return _onMouseUp.apply(this, arguments);
      }

      onMouseUp.toString = function () {
        return _onMouseUp.toString();
      };

      return onMouseUp;
    }(function () {
      document.removeEventListener('mousemove', onMouseMove);
      document.removeEventListener('mouseup', onMouseUp);
      onMouseMove = null;
      onMouseUp = null;
    });

    document.addEventListener('mousemove', onMouseMove);
    document.addEventListener('mouseup', onMouseUp);
  };

  this.handleResetResize = function () {
    _this6.setState({ editorFlex: 1 });
  };

  this.handleDocsResizeStart = function (downEvent) {
    downEvent.preventDefault();

    var hadWidth = _this6.state.docExplorerWidth;
    var offset = downEvent.clientX - (0, _elementPosition.getLeft)(downEvent.target);

    var onMouseMove = function onMouseMove(moveEvent) {
      if (moveEvent.buttons === 0) {
        return onMouseUp();
      }

      var app = _reactDom2.default.findDOMNode(_this6);
      var cursorPos = moveEvent.clientX - (0, _elementPosition.getLeft)(app) - offset;
      var docsSize = app.clientWidth - cursorPos;

      if (docsSize < 100) {
        _this6.setState({ docExplorerOpen: false });
      } else {
        _this6.setState({
          docExplorerOpen: true,
          docExplorerWidth: Math.min(docsSize, 650)
        });
      }
    };

    var onMouseUp = function (_onMouseUp2) {
      function onMouseUp() {
        return _onMouseUp2.apply(this, arguments);
      }

      onMouseUp.toString = function () {
        return _onMouseUp2.toString();
      };

      return onMouseUp;
    }(function () {
      if (!_this6.state.docExplorerOpen) {
        _this6.setState({ docExplorerWidth: hadWidth });
      }

      document.removeEventListener('mousemove', onMouseMove);
      document.removeEventListener('mouseup', onMouseUp);
      onMouseMove = null;
      onMouseUp = null;
    });

    document.addEventListener('mousemove', onMouseMove);
    document.addEventListener('mouseup', onMouseUp);
  };

  this.handleDocsResetResize = function () {
    _this6.setState({
      docExplorerWidth: DEFAULT_DOC_EXPLORER_WIDTH
    });
  };

  this.handleVariableResizeStart = function (downEvent) {
    downEvent.preventDefault();

    var didMove = false;
    var wasOpen = _this6.state.variableEditorOpen;
    var hadHeight = _this6.state.variableEditorHeight;
    var offset = downEvent.clientY - (0, _elementPosition.getTop)(downEvent.target);

    var onMouseMove = function onMouseMove(moveEvent) {
      if (moveEvent.buttons === 0) {
        return onMouseUp();
      }

      didMove = true;

      var editorBar = _reactDom2.default.findDOMNode(_this6.editorBarComponent);
      var topSize = moveEvent.clientY - (0, _elementPosition.getTop)(editorBar) - offset;
      var bottomSize = editorBar.clientHeight - topSize;
      if (bottomSize < 60) {
        _this6.setState({
          variableEditorOpen: false,
          variableEditorHeight: hadHeight
        });
      } else {
        _this6.setState({
          variableEditorOpen: true,
          variableEditorHeight: bottomSize
        });
      }
    };

    var onMouseUp = function (_onMouseUp3) {
      function onMouseUp() {
        return _onMouseUp3.apply(this, arguments);
      }

      onMouseUp.toString = function () {
        return _onMouseUp3.toString();
      };

      return onMouseUp;
    }(function () {
      if (!didMove) {
        _this6.setState({ variableEditorOpen: !wasOpen });
      }

      document.removeEventListener('mousemove', onMouseMove);
      document.removeEventListener('mouseup', onMouseUp);
      onMouseMove = null;
      onMouseUp = null;
    });

    document.addEventListener('mousemove', onMouseMove);
    document.addEventListener('mouseup', onMouseUp);
  };
};

GraphiQL.Logo = function GraphiQLLogo(props) {
  return _react2.default.createElement(
    'div',
    { className: 'title' },
    props.children || _react2.default.createElement(
      'span',
      null,
      'Graph',
      _react2.default.createElement(
        'em',
        null,
        'i'
      ),
      'QL'
    )
  );
};

// Configure the UI by providing this Component as a child of GraphiQL.
GraphiQL.Toolbar = function GraphiQLToolbar(props) {
  return _react2.default.createElement(
    'div',
    { className: 'toolbar' },
    props.children
  );
};

// Export main windows/panes to be used separately if desired.
GraphiQL.QueryEditor = _QueryEditor.QueryEditor;
GraphiQL.VariableEditor = _VariableEditor.VariableEditor;
GraphiQL.ResultViewer = _ResultViewer.ResultViewer;

// Add a button to the Toolbar.
GraphiQL.Button = _ToolbarButton.ToolbarButton;
GraphiQL.ToolbarButton = _ToolbarButton.ToolbarButton; // Don't break existing API.

// Add a group of buttons to the Toolbar
GraphiQL.Group = _ToolbarGroup.ToolbarGroup;

// Add a menu of items to the Toolbar.
GraphiQL.Menu = _ToolbarMenu.ToolbarMenu;
GraphiQL.MenuItem = _ToolbarMenu.ToolbarMenuItem;

// Add a select-option input to the Toolbar.
GraphiQL.Select = _ToolbarSelect.ToolbarSelect;
GraphiQL.SelectOption = _ToolbarSelect.ToolbarSelectOption;

// Configure the UI by providing this Component as a child of GraphiQL.
GraphiQL.Footer = function GraphiQLFooter(props) {
  return _react2.default.createElement(
    'div',
    { className: 'footer' },
    props.children
  );
};

var defaultQuery = '# Welcome to GraphiQL\n#\n# GraphiQL is an in-browser tool for writing, validating, and\n# testing GraphQL queries.\n#\n# Type queries into this side of the screen, and you will see intelligent\n# typeaheads aware of the current GraphQL type schema and live syntax and\n# validation errors highlighted within the text.\n#\n# GraphQL queries typically start with a "{" character. Lines that starts\n# with a # are ignored.\n#\n# An example GraphQL query might look like:\n#\n#     {\n#       field(arg: "value") {\n#         subField\n#       }\n#     }\n#\n# Keyboard shortcuts:\n#\n#  Prettify Query:  Shift-Ctrl-P (or press the prettify button above)\n#\n#       Run Query:  Ctrl-Enter (or press the play button above)\n#\n#   Auto Complete:  Ctrl-Space (or just start typing)\n#\n\n';

// Duck-type promise detection.
function isPromise(value) {
  return (typeof value === 'undefined' ? 'undefined' : _typeof(value)) === 'object' && typeof value.then === 'function';
}

// Duck-type Observable.take(1).toPromise()
function observableToPromise(observable) {
  if (!isObservable(observable)) {
    return observable;
  }
  return new Promise(function (resolve, reject) {
    var subscription = observable.subscribe(function (v) {
      resolve(v);
      subscription.unsubscribe();
    }, reject, function () {
      reject(new Error('no value resolved'));
    });
  });
}

// Duck-type observable detection.
function isObservable(value) {
  return (typeof value === 'undefined' ? 'undefined' : _typeof(value)) === 'object' && typeof value.subscribe === 'function';
}
}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"../utility/CodeMirrorSizer":23,"../utility/StorageAPI":25,"../utility/debounce":26,"../utility/elementPosition":27,"../utility/fillLeafs":28,"../utility/find":29,"../utility/getQueryFacts":30,"../utility/getSelectedOperationName":31,"../utility/introspectionQueries":32,"./DocExplorer":1,"./ExecuteButton":11,"./QueryEditor":14,"./QueryHistory":15,"./ResultViewer":16,"./ToolbarButton":17,"./ToolbarGroup":18,"./ToolbarMenu":19,"./ToolbarSelect":20,"./VariableEditor":21,"graphql":95,"prop-types":233}],13:[function(require,module,exports){
(function (global){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

var _react = (typeof window !== "undefined" ? window['React'] : typeof global !== "undefined" ? global['React'] : null);

var _react2 = _interopRequireDefault(_react);

var _propTypes = require('prop-types');

var _propTypes2 = _interopRequireDefault(_propTypes);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; } /**
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *  Copyright (c) Facebook, Inc.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *  All rights reserved.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *  This source code is licensed under the license found in the
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *  LICENSE file in the root directory of this source tree.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                */

var HistoryQuery = function (_React$Component) {
  _inherits(HistoryQuery, _React$Component);

  function HistoryQuery(props) {
    _classCallCheck(this, HistoryQuery);

    var _this = _possibleConstructorReturn(this, (HistoryQuery.__proto__ || Object.getPrototypeOf(HistoryQuery)).call(this, props));

    var starVisibility = _this.props.favorite ? 'visible' : 'hidden';
    _this.state = { starVisibility: starVisibility };
    return _this;
  }

  _createClass(HistoryQuery, [{
    key: 'render',
    value: function render() {
      if (this.props.favorite && this.state.starVisibility === 'hidden') {
        this.setState({ starVisibility: 'visible' });
      }
      var starStyles = {
        float: 'right',
        visibility: this.state.starVisibility
      };
      var displayName = this.props.operationName || this.props.query.split('\n').filter(function (line) {
        return line.indexOf('#') !== 0;
      }).join('');
      var starIcon = this.props.favorite ? '\u2605' : '\u2606';
      return _react2.default.createElement(
        'p',
        {
          onClick: this.handleClick.bind(this),
          onMouseEnter: this.handleMouseEnter.bind(this),
          onMouseLeave: this.handleMouseLeave.bind(this) },
        _react2.default.createElement(
          'span',
          null,
          displayName
        ),
        _react2.default.createElement(
          'span',
          { onClick: this.handleStarClick.bind(this), style: starStyles },
          starIcon
        )
      );
    }
  }, {
    key: 'handleMouseEnter',
    value: function handleMouseEnter() {
      if (!this.props.favorite) {
        this.setState({ starVisibility: 'visible' });
      }
    }
  }, {
    key: 'handleMouseLeave',
    value: function handleMouseLeave() {
      if (!this.props.favorite) {
        this.setState({ starVisibility: 'hidden' });
      }
    }
  }, {
    key: 'handleClick',
    value: function handleClick() {
      this.props.onSelect(this.props.query, this.props.variables, this.props.operationName);
    }
  }, {
    key: 'handleStarClick',
    value: function handleStarClick(e) {
      e.stopPropagation();
      this.props.handleToggleFavorite(this.props.query, this.props.variables, this.props.operationName, this.props.favorite);
    }
  }]);

  return HistoryQuery;
}(_react2.default.Component);

HistoryQuery.propTypes = {
  favorite: _propTypes2.default.bool,
  favoriteSize: _propTypes2.default.number,
  handleToggleFavorite: _propTypes2.default.func,
  operationName: _propTypes2.default.string,
  onSelect: _propTypes2.default.func,
  query: _propTypes2.default.string,
  variables: _propTypes2.default.string
};
exports.default = HistoryQuery;
}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"prop-types":233}],14:[function(require,module,exports){
(function (global){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.QueryEditor = undefined;

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

var _react = (typeof window !== "undefined" ? window['React'] : typeof global !== "undefined" ? global['React'] : null);

var _react2 = _interopRequireDefault(_react);

var _propTypes = require('prop-types');

var _propTypes2 = _interopRequireDefault(_propTypes);

var _graphql = require('graphql');

var _markdownIt = require('markdown-it');

var _markdownIt2 = _interopRequireDefault(_markdownIt);

var _normalizeWhitespace = require('../utility/normalizeWhitespace');

var _onHasCompletion = require('../utility/onHasCompletion');

var _onHasCompletion2 = _interopRequireDefault(_onHasCompletion);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; } /**
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *  Copyright (c) Facebook, Inc.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *  All rights reserved.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *  This source code is licensed under the license found in the
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *  LICENSE file in the root directory of this source tree.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                */

var md = new _markdownIt2.default();
var AUTO_COMPLETE_AFTER_KEY = /^[a-zA-Z0-9_@(]$/;

/**
 * QueryEditor
 *
 * Maintains an instance of CodeMirror responsible for editing a GraphQL query.
 *
 * Props:
 *
 *   - schema: A GraphQLSchema instance enabling editor linting and hinting.
 *   - value: The text of the editor.
 *   - onEdit: A function called when the editor changes, given the edited text.
 *   - readOnly: Turns the editor to read-only mode.
 *
 */

var QueryEditor = exports.QueryEditor = function (_React$Component) {
  _inherits(QueryEditor, _React$Component);

  function QueryEditor(props) {
    _classCallCheck(this, QueryEditor);

    // Keep a cached version of the value, this cache will be updated when the
    // editor is updated, which can later be used to protect the editor from
    // unnecessary updates during the update lifecycle.
    var _this = _possibleConstructorReturn(this, (QueryEditor.__proto__ || Object.getPrototypeOf(QueryEditor)).call(this));

    _this._onKeyUp = function (cm, event) {
      if (AUTO_COMPLETE_AFTER_KEY.test(event.key)) {
        _this.editor.execCommand('autocomplete');
      }
    };

    _this._onEdit = function () {
      if (!_this.ignoreChangeEvent) {
        _this.cachedValue = _this.editor.getValue();
        if (_this.props.onEdit) {
          _this.props.onEdit(_this.cachedValue);
        }
      }
    };

    _this._onHasCompletion = function (cm, data) {
      (0, _onHasCompletion2.default)(cm, data, _this.props.onHintInformationRender);
    };

    _this.cachedValue = props.value || '';
    return _this;
  }

  _createClass(QueryEditor, [{
    key: 'componentDidMount',
    value: function componentDidMount() {
      var _this2 = this;

      // Lazily require to ensure requiring GraphiQL outside of a Browser context
      // does not produce an error.
      var CodeMirror = require('codemirror');
      require('codemirror/addon/hint/show-hint');
      require('codemirror/addon/comment/comment');
      require('codemirror/addon/edit/matchbrackets');
      require('codemirror/addon/edit/closebrackets');
      require('codemirror/addon/fold/foldgutter');
      require('codemirror/addon/fold/brace-fold');
      require('codemirror/addon/search/search');
      require('codemirror/addon/search/searchcursor');
      require('codemirror/addon/search/jump-to-line');
      require('codemirror/addon/dialog/dialog');
      require('codemirror/addon/lint/lint');
      require('codemirror/keymap/sublime');
      require('codemirror-graphql/hint');
      require('codemirror-graphql/lint');
      require('codemirror-graphql/info');
      require('codemirror-graphql/jump');
      require('codemirror-graphql/mode');

      this.editor = CodeMirror(this._node, {
        value: this.props.value || '',
        lineNumbers: true,
        tabSize: 2,
        mode: 'graphql',
        theme: this.props.editorTheme || 'graphiql',
        keyMap: 'sublime',
        autoCloseBrackets: true,
        matchBrackets: true,
        showCursorWhenSelecting: true,
        readOnly: this.props.readOnly ? 'nocursor' : false,
        foldGutter: {
          minFoldSize: 4
        },
        lint: {
          schema: this.props.schema
        },
        hintOptions: {
          schema: this.props.schema,
          closeOnUnfocus: false,
          completeSingle: false
        },
        info: {
          schema: this.props.schema,
          renderDescription: function renderDescription(text) {
            return md.render(text);
          },
          onClick: function onClick(reference) {
            return _this2.props.onClickReference(reference);
          }
        },
        jump: {
          schema: this.props.schema,
          onClick: function onClick(reference) {
            return _this2.props.onClickReference(reference);
          }
        },
        gutters: ['CodeMirror-linenumbers', 'CodeMirror-foldgutter'],
        extraKeys: {
          'Cmd-Space': function CmdSpace() {
            return _this2.editor.showHint({ completeSingle: true });
          },
          'Ctrl-Space': function CtrlSpace() {
            return _this2.editor.showHint({ completeSingle: true });
          },
          'Alt-Space': function AltSpace() {
            return _this2.editor.showHint({ completeSingle: true });
          },
          'Shift-Space': function ShiftSpace() {
            return _this2.editor.showHint({ completeSingle: true });
          },

          'Cmd-Enter': function CmdEnter() {
            if (_this2.props.onRunQuery) {
              _this2.props.onRunQuery();
            }
          },
          'Ctrl-Enter': function CtrlEnter() {
            if (_this2.props.onRunQuery) {
              _this2.props.onRunQuery();
            }
          },

          'Shift-Ctrl-P': function ShiftCtrlP() {
            if (_this2.props.onPrettifyQuery) {
              _this2.props.onPrettifyQuery();
            }
          },

          // Persistent search box in Query Editor
          'Cmd-F': 'findPersistent',
          'Ctrl-F': 'findPersistent',

          // Editor improvements
          'Ctrl-Left': 'goSubwordLeft',
          'Ctrl-Right': 'goSubwordRight',
          'Alt-Left': 'goGroupLeft',
          'Alt-Right': 'goGroupRight'
        }
      });

      this.editor.on('change', this._onEdit);
      this.editor.on('keyup', this._onKeyUp);
      this.editor.on('hasCompletion', this._onHasCompletion);
      this.editor.on('beforeChange', this._onBeforeChange);
    }
  }, {
    key: 'componentDidUpdate',
    value: function componentDidUpdate(prevProps) {
      var CodeMirror = require('codemirror');

      // Ensure the changes caused by this update are not interpretted as
      // user-input changes which could otherwise result in an infinite
      // event loop.
      this.ignoreChangeEvent = true;
      if (this.props.schema !== prevProps.schema) {
        this.editor.options.lint.schema = this.props.schema;
        this.editor.options.hintOptions.schema = this.props.schema;
        this.editor.options.info.schema = this.props.schema;
        this.editor.options.jump.schema = this.props.schema;
        CodeMirror.signal(this.editor, 'change', this.editor);
      }
      if (this.props.value !== prevProps.value && this.props.value !== this.cachedValue) {
        this.cachedValue = this.props.value;
        this.editor.setValue(this.props.value);
      }
      this.ignoreChangeEvent = false;
    }
  }, {
    key: 'componentWillUnmount',
    value: function componentWillUnmount() {
      this.editor.off('change', this._onEdit);
      this.editor.off('keyup', this._onKeyUp);
      this.editor.off('hasCompletion', this._onHasCompletion);
      this.editor = null;
    }
  }, {
    key: 'render',
    value: function render() {
      var _this3 = this;

      return _react2.default.createElement('div', {
        className: 'query-editor',
        ref: function ref(node) {
          _this3._node = node;
        }
      });
    }

    /**
     * Public API for retrieving the CodeMirror instance from this
     * React component.
     */

  }, {
    key: 'getCodeMirror',
    value: function getCodeMirror() {
      return this.editor;
    }

    /**
     * Public API for retrieving the DOM client height for this component.
     */

  }, {
    key: 'getClientHeight',
    value: function getClientHeight() {
      return this._node && this._node.clientHeight;
    }

    /**
     * Render a custom UI for CodeMirror's hint which includes additional info
     * about the type and description for the selected context.
     */

  }, {
    key: '_onBeforeChange',
    value: function _onBeforeChange(instance, change) {
      // The update function is only present on non-redo, non-undo events.
      if (change.origin === 'paste') {
        var text = change.text.map(_normalizeWhitespace.normalizeWhitespace);
        change.update(change.from, change.to, text);
      }
    }
  }]);

  return QueryEditor;
}(_react2.default.Component);

QueryEditor.propTypes = {
  schema: _propTypes2.default.instanceOf(_graphql.GraphQLSchema),
  value: _propTypes2.default.string,
  onEdit: _propTypes2.default.func,
  readOnly: _propTypes2.default.bool,
  onHintInformationRender: _propTypes2.default.func,
  onClickReference: _propTypes2.default.func,
  onPrettifyQuery: _propTypes2.default.func,
  onRunQuery: _propTypes2.default.func,
  editorTheme: _propTypes2.default.string
};
}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"../utility/normalizeWhitespace":33,"../utility/onHasCompletion":34,"codemirror":65,"codemirror-graphql/hint":36,"codemirror-graphql/info":37,"codemirror-graphql/jump":38,"codemirror-graphql/lint":39,"codemirror-graphql/mode":40,"codemirror/addon/comment/comment":52,"codemirror/addon/dialog/dialog":53,"codemirror/addon/edit/closebrackets":54,"codemirror/addon/edit/matchbrackets":55,"codemirror/addon/fold/brace-fold":56,"codemirror/addon/fold/foldgutter":58,"codemirror/addon/hint/show-hint":59,"codemirror/addon/lint/lint":60,"codemirror/addon/search/jump-to-line":61,"codemirror/addon/search/search":62,"codemirror/addon/search/searchcursor":63,"codemirror/keymap/sublime":64,"graphql":95,"markdown-it":172,"prop-types":233}],15:[function(require,module,exports){
(function (global){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.QueryHistory = undefined;

var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

var _graphql = require('graphql');

var _react = (typeof window !== "undefined" ? window['React'] : typeof global !== "undefined" ? global['React'] : null);

var _react2 = _interopRequireDefault(_react);

var _propTypes = require('prop-types');

var _propTypes2 = _interopRequireDefault(_propTypes);

var _QueryStore = require('../utility/QueryStore');

var _QueryStore2 = _interopRequireDefault(_QueryStore);

var _HistoryQuery = require('./HistoryQuery');

var _HistoryQuery2 = _interopRequireDefault(_HistoryQuery);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

var shouldSaveQuery = function shouldSaveQuery(nextProps, current, lastQuerySaved) {
  if (nextProps.queryID === current.queryID) {
    return false;
  }
  try {
    (0, _graphql.parse)(nextProps.query);
  } catch (e) {
    return false;
  }
  if (!lastQuerySaved) {
    return true;
  }
  if (JSON.stringify(nextProps.query) === JSON.stringify(lastQuerySaved.query)) {
    if (JSON.stringify(nextProps.variables) === JSON.stringify(lastQuerySaved.variables)) {
      return false;
    }
    if (!nextProps.variables && !lastQuerySaved.variables) {
      return false;
    }
  }
  return true;
};

var MAX_HISTORY_LENGTH = 20;

var QueryHistory = exports.QueryHistory = function (_React$Component) {
  _inherits(QueryHistory, _React$Component);

  function QueryHistory(props) {
    _classCallCheck(this, QueryHistory);

    var _this = _possibleConstructorReturn(this, (QueryHistory.__proto__ || Object.getPrototypeOf(QueryHistory)).call(this, props));

    _initialiseProps.call(_this);

    _this.historyStore = new _QueryStore2.default('queries', props.storage);
    _this.favoriteStore = new _QueryStore2.default('favorites', props.storage);
    var historyQueries = _this.historyStore.fetchAll();
    var favoriteQueries = _this.favoriteStore.fetchAll();
    var queries = historyQueries.concat(favoriteQueries);
    _this.state = { queries: queries };
    return _this;
  }

  _createClass(QueryHistory, [{
    key: 'componentWillReceiveProps',
    value: function componentWillReceiveProps(nextProps) {
      if (shouldSaveQuery(nextProps, this.props, this.historyStore.fetchRecent())) {
        var item = {
          query: nextProps.query,
          variables: nextProps.variables,
          operationName: nextProps.operationName
        };
        this.historyStore.push(item);
        if (this.historyStore.length > MAX_HISTORY_LENGTH) {
          this.historyStore.shift();
        }
        var historyQueries = this.historyStore.items;
        var favoriteQueries = this.favoriteStore.items;
        var queries = historyQueries.concat(favoriteQueries);
        this.setState({
          queries: queries
        });
      }
    }
  }, {
    key: 'render',
    value: function render() {
      var _this2 = this;

      var queries = this.state.queries.slice().reverse();
      var queryNodes = queries.map(function (query, i) {
        return _react2.default.createElement(_HistoryQuery2.default, _extends({
          handleToggleFavorite: _this2.toggleFavorite,
          key: i,
          onSelect: _this2.props.onSelectQuery
        }, query));
      });
      return _react2.default.createElement(
        'div',
        null,
        _react2.default.createElement(
          'div',
          { className: 'history-title-bar' },
          _react2.default.createElement(
            'div',
            { className: 'history-title' },
            'History'
          ),
          _react2.default.createElement(
            'div',
            { className: 'doc-explorer-rhs' },
            this.props.children
          )
        ),
        _react2.default.createElement(
          'div',
          { className: 'history-contents' },
          queryNodes
        )
      );
    }
  }]);

  return QueryHistory;
}(_react2.default.Component);

QueryHistory.propTypes = {
  query: _propTypes2.default.string,
  variables: _propTypes2.default.string,
  operationName: _propTypes2.default.string,
  queryID: _propTypes2.default.number,
  onSelectQuery: _propTypes2.default.func,
  storage: _propTypes2.default.object
};

var _initialiseProps = function _initialiseProps() {
  var _this3 = this;

  this.toggleFavorite = function (query, variables, operationName, favorite) {
    var item = {
      query: query,
      variables: variables,
      operationName: operationName
    };
    if (!_this3.favoriteStore.contains(item)) {
      item.favorite = true;
      _this3.favoriteStore.push(item);
    } else if (favorite) {
      item.favorite = false;
      _this3.favoriteStore.delete(item);
    }
    var historyQueries = _this3.historyStore.items;
    var favoriteQueries = _this3.favoriteStore.items;
    var queries = historyQueries.concat(favoriteQueries);
    _this3.setState({ queries: queries });
  };
};
}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"../utility/QueryStore":24,"./HistoryQuery":13,"graphql":95,"prop-types":233}],16:[function(require,module,exports){
(function (global){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.ResultViewer = undefined;

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

var _react = (typeof window !== "undefined" ? window['React'] : typeof global !== "undefined" ? global['React'] : null);

var _react2 = _interopRequireDefault(_react);

var _reactDom = (typeof window !== "undefined" ? window['ReactDOM'] : typeof global !== "undefined" ? global['ReactDOM'] : null);

var _reactDom2 = _interopRequireDefault(_reactDom);

var _propTypes = require('prop-types');

var _propTypes2 = _interopRequireDefault(_propTypes);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; } /**
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *  Copyright (c) Facebook, Inc.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *  All rights reserved.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *  This source code is licensed under the license found in the
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *  LICENSE file in the root directory of this source tree.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                */

/**
 * ResultViewer
 *
 * Maintains an instance of CodeMirror for viewing a GraphQL response.
 *
 * Props:
 *
 *   - value: The text of the editor.
 *
 */
var ResultViewer = exports.ResultViewer = function (_React$Component) {
  _inherits(ResultViewer, _React$Component);

  function ResultViewer() {
    _classCallCheck(this, ResultViewer);

    return _possibleConstructorReturn(this, (ResultViewer.__proto__ || Object.getPrototypeOf(ResultViewer)).call(this));
  }

  _createClass(ResultViewer, [{
    key: 'componentDidMount',
    value: function componentDidMount() {
      var _this2 = this;

      // Lazily require to ensure requiring GraphiQL outside of a Browser context
      // does not produce an error.
      var CodeMirror = require('codemirror');
      require('codemirror/addon/fold/foldgutter');
      require('codemirror/addon/fold/brace-fold');
      require('codemirror/addon/dialog/dialog');
      require('codemirror/addon/search/search');
      require('codemirror/addon/search/searchcursor');
      require('codemirror/addon/search/jump-to-line');
      require('codemirror/keymap/sublime');
      require('codemirror-graphql/results/mode');

      if (this.props.ResultsTooltip) {
        require('codemirror-graphql/utils/info-addon');
        var tooltipDiv = document.createElement('div');
        CodeMirror.registerHelper('info', 'graphql-results', function (token, options, cm, pos) {
          var Tooltip = _this2.props.ResultsTooltip;
          _reactDom2.default.render(_react2.default.createElement(Tooltip, { pos: pos }), tooltipDiv);
          return tooltipDiv;
        });
      }

      this.viewer = CodeMirror(this._node, {
        lineWrapping: true,
        value: this.props.value || '',
        readOnly: true,
        theme: this.props.editorTheme || 'graphiql',
        mode: 'graphql-results',
        keyMap: 'sublime',
        foldGutter: {
          minFoldSize: 4
        },
        gutters: ['CodeMirror-foldgutter'],
        info: Boolean(this.props.ResultsTooltip),
        extraKeys: {
          // Persistent search box in Query Editor
          'Cmd-F': 'findPersistent',
          'Ctrl-F': 'findPersistent',

          // Editor improvements
          'Ctrl-Left': 'goSubwordLeft',
          'Ctrl-Right': 'goSubwordRight',
          'Alt-Left': 'goGroupLeft',
          'Alt-Right': 'goGroupRight'
        }
      });
    }
  }, {
    key: 'shouldComponentUpdate',
    value: function shouldComponentUpdate(nextProps) {
      return this.props.value !== nextProps.value;
    }
  }, {
    key: 'componentDidUpdate',
    value: function componentDidUpdate() {
      this.viewer.setValue(this.props.value || '');
    }
  }, {
    key: 'componentWillUnmount',
    value: function componentWillUnmount() {
      this.viewer = null;
    }
  }, {
    key: 'render',
    value: function render() {
      var _this3 = this;

      return _react2.default.createElement('div', {
        className: 'result-window',
        ref: function ref(node) {
          _this3._node = node;
        }
      });
    }

    /**
     * Public API for retrieving the CodeMirror instance from this
     * React component.
     */

  }, {
    key: 'getCodeMirror',
    value: function getCodeMirror() {
      return this.viewer;
    }

    /**
     * Public API for retrieving the DOM client height for this component.
     */

  }, {
    key: 'getClientHeight',
    value: function getClientHeight() {
      return this._node && this._node.clientHeight;
    }
  }]);

  return ResultViewer;
}(_react2.default.Component);

ResultViewer.propTypes = {
  value: _propTypes2.default.string,
  editorTheme: _propTypes2.default.string,
  ResultsTooltip: _propTypes2.default.any
};
}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"codemirror":65,"codemirror-graphql/results/mode":41,"codemirror-graphql/utils/info-addon":46,"codemirror/addon/dialog/dialog":53,"codemirror/addon/fold/brace-fold":56,"codemirror/addon/fold/foldgutter":58,"codemirror/addon/search/jump-to-line":61,"codemirror/addon/search/search":62,"codemirror/addon/search/searchcursor":63,"codemirror/keymap/sublime":64,"prop-types":233}],17:[function(require,module,exports){
(function (global){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.ToolbarButton = undefined;

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

var _react = (typeof window !== "undefined" ? window['React'] : typeof global !== "undefined" ? global['React'] : null);

var _react2 = _interopRequireDefault(_react);

var _propTypes = require('prop-types');

var _propTypes2 = _interopRequireDefault(_propTypes);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; } /**
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *  Copyright (c) Facebook, Inc.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *  All rights reserved.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *  This source code is licensed under the license found in the
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *  LICENSE file in the root directory of this source tree.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                */

/**
 * ToolbarButton
 *
 * A button to use within the Toolbar.
 */
var ToolbarButton = exports.ToolbarButton = function (_React$Component) {
  _inherits(ToolbarButton, _React$Component);

  function ToolbarButton(props) {
    _classCallCheck(this, ToolbarButton);

    var _this = _possibleConstructorReturn(this, (ToolbarButton.__proto__ || Object.getPrototypeOf(ToolbarButton)).call(this, props));

    _this.handleClick = function (e) {
      e.preventDefault();
      try {
        _this.props.onClick();
        _this.setState({ error: null });
      } catch (error) {
        _this.setState({ error: error });
      }
    };

    _this.state = { error: null };
    return _this;
  }

  _createClass(ToolbarButton, [{
    key: 'render',
    value: function render() {
      var error = this.state.error;

      return _react2.default.createElement(
        'a',
        {
          className: 'toolbar-button' + (error ? ' error' : ''),
          onMouseDown: preventDefault,
          onClick: this.handleClick,
          title: error ? error.message : this.props.title },
        this.props.label
      );
    }
  }]);

  return ToolbarButton;
}(_react2.default.Component);

ToolbarButton.propTypes = {
  onClick: _propTypes2.default.func,
  title: _propTypes2.default.string,
  label: _propTypes2.default.string
};


function preventDefault(e) {
  e.preventDefault();
}
}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"prop-types":233}],18:[function(require,module,exports){
(function (global){
"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.ToolbarGroup = ToolbarGroup;

var _react = (typeof window !== "undefined" ? window['React'] : typeof global !== "undefined" ? global['React'] : null);

var _react2 = _interopRequireDefault(_react);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

/**
 * ToolbarGroup
 *
 * A group of associated controls.
 */
function ToolbarGroup(_ref) {
  var children = _ref.children;

  return _react2.default.createElement(
    "div",
    { className: "toolbar-button-group" },
    children
  );
} /**
   *  Copyright (c) Facebook, Inc.
   *  All rights reserved.
   *
   *  This source code is licensed under the license found in the
   *  LICENSE file in the root directory of this source tree.
   */
}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{}],19:[function(require,module,exports){
(function (global){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.ToolbarMenu = undefined;

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

exports.ToolbarMenuItem = ToolbarMenuItem;

var _react = (typeof window !== "undefined" ? window['React'] : typeof global !== "undefined" ? global['React'] : null);

var _react2 = _interopRequireDefault(_react);

var _propTypes = require('prop-types');

var _propTypes2 = _interopRequireDefault(_propTypes);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; } /**
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *  Copyright (c) Facebook, Inc.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *  All rights reserved.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *  This source code is licensed under the license found in the
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *  LICENSE file in the root directory of this source tree.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                */

/**
 * ToolbarMenu
 *
 * A menu style button to use within the Toolbar.
 */
var ToolbarMenu = exports.ToolbarMenu = function (_React$Component) {
  _inherits(ToolbarMenu, _React$Component);

  function ToolbarMenu(props) {
    _classCallCheck(this, ToolbarMenu);

    var _this = _possibleConstructorReturn(this, (ToolbarMenu.__proto__ || Object.getPrototypeOf(ToolbarMenu)).call(this, props));

    _this.handleOpen = function (e) {
      preventDefault(e);
      _this.setState({ visible: true });
      _this._subscribe();
    };

    _this.state = { visible: false };
    return _this;
  }

  _createClass(ToolbarMenu, [{
    key: 'componentWillUnmount',
    value: function componentWillUnmount() {
      this._release();
    }
  }, {
    key: 'render',
    value: function render() {
      var _this2 = this;

      var visible = this.state.visible;
      return _react2.default.createElement(
        'a',
        {
          className: 'toolbar-menu toolbar-button',
          onClick: this.handleOpen.bind(this),
          onMouseDown: preventDefault,
          ref: function ref(node) {
            _this2._node = node;
          },
          title: this.props.title },
        this.props.label,
        _react2.default.createElement(
          'svg',
          { width: '14', height: '8' },
          _react2.default.createElement('path', { fill: '#666', d: 'M 5 1.5 L 14 1.5 L 9.5 7 z' })
        ),
        _react2.default.createElement(
          'ul',
          { className: 'toolbar-menu-items' + (visible ? ' open' : '') },
          this.props.children
        )
      );
    }
  }, {
    key: '_subscribe',
    value: function _subscribe() {
      if (!this._listener) {
        this._listener = this.handleClick.bind(this);
        document.addEventListener('click', this._listener);
      }
    }
  }, {
    key: '_release',
    value: function _release() {
      if (this._listener) {
        document.removeEventListener('click', this._listener);
        this._listener = null;
      }
    }
  }, {
    key: 'handleClick',
    value: function handleClick(e) {
      if (this._node !== e.target) {
        preventDefault(e);
        this.setState({ visible: false });
        this._release();
      }
    }
  }]);

  return ToolbarMenu;
}(_react2.default.Component);

ToolbarMenu.propTypes = {
  title: _propTypes2.default.string,
  label: _propTypes2.default.string
};
function ToolbarMenuItem(_ref) {
  var onSelect = _ref.onSelect,
      title = _ref.title,
      label = _ref.label;

  return _react2.default.createElement(
    'li',
    {
      onMouseOver: function onMouseOver(e) {
        e.target.className = 'hover';
      },
      onMouseOut: function onMouseOut(e) {
        e.target.className = null;
      },
      onMouseDown: preventDefault,
      onMouseUp: onSelect,
      title: title },
    label
  );
}

ToolbarMenuItem.propTypes = {
  onSelect: _propTypes2.default.func,
  title: _propTypes2.default.string,
  label: _propTypes2.default.string
};

function preventDefault(e) {
  e.preventDefault();
}
}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"prop-types":233}],20:[function(require,module,exports){
(function (global){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.ToolbarSelect = undefined;

var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

exports.ToolbarSelectOption = ToolbarSelectOption;

var _react = (typeof window !== "undefined" ? window['React'] : typeof global !== "undefined" ? global['React'] : null);

var _react2 = _interopRequireDefault(_react);

var _propTypes = require('prop-types');

var _propTypes2 = _interopRequireDefault(_propTypes);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; } /**
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *  Copyright (c) Facebook, Inc.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *  All rights reserved.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *  This source code is licensed under the license found in the
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *  LICENSE file in the root directory of this source tree.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                */

/**
 * ToolbarSelect
 *
 * A select-option style button to use within the Toolbar.
 *
 */

var ToolbarSelect = exports.ToolbarSelect = function (_React$Component) {
  _inherits(ToolbarSelect, _React$Component);

  function ToolbarSelect(props) {
    _classCallCheck(this, ToolbarSelect);

    var _this = _possibleConstructorReturn(this, (ToolbarSelect.__proto__ || Object.getPrototypeOf(ToolbarSelect)).call(this, props));

    _this.handleOpen = function (e) {
      preventDefault(e);
      _this.setState({ visible: true });
      _this._subscribe();
    };

    _this.state = { visible: false };
    return _this;
  }

  _createClass(ToolbarSelect, [{
    key: 'componentWillUnmount',
    value: function componentWillUnmount() {
      this._release();
    }
  }, {
    key: 'render',
    value: function render() {
      var _this2 = this;

      var selectedChild = void 0;
      var visible = this.state.visible;
      var optionChildren = _react2.default.Children.map(this.props.children, function (child, i) {
        if (!selectedChild || child.props.selected) {
          selectedChild = child;
        }
        var onChildSelect = child.props.onSelect || _this2.props.onSelect && _this2.props.onSelect.bind(null, child.props.value, i);
        return _react2.default.createElement(ToolbarSelectOption, _extends({}, child.props, { onSelect: onChildSelect }));
      });
      return _react2.default.createElement(
        'a',
        {
          className: 'toolbar-select toolbar-button',
          onClick: this.handleOpen.bind(this),
          onMouseDown: preventDefault,
          ref: function ref(node) {
            _this2._node = node;
          },
          title: this.props.title },
        selectedChild.props.label,
        _react2.default.createElement(
          'svg',
          { width: '13', height: '10' },
          _react2.default.createElement('path', { fill: '#666', d: 'M 5 5 L 13 5 L 9 1 z' }),
          _react2.default.createElement('path', { fill: '#666', d: 'M 5 6 L 13 6 L 9 10 z' })
        ),
        _react2.default.createElement(
          'ul',
          { className: 'toolbar-select-options' + (visible ? ' open' : '') },
          optionChildren
        )
      );
    }
  }, {
    key: '_subscribe',
    value: function _subscribe() {
      if (!this._listener) {
        this._listener = this.handleClick.bind(this);
        document.addEventListener('click', this._listener);
      }
    }
  }, {
    key: '_release',
    value: function _release() {
      if (this._listener) {
        document.removeEventListener('click', this._listener);
        this._listener = null;
      }
    }
  }, {
    key: 'handleClick',
    value: function handleClick(e) {
      if (this._node !== e.target) {
        preventDefault(e);
        this.setState({ visible: false });
        this._release();
      }
    }
  }]);

  return ToolbarSelect;
}(_react2.default.Component);

ToolbarSelect.propTypes = {
  title: _propTypes2.default.string,
  label: _propTypes2.default.string,
  onSelect: _propTypes2.default.func
};
function ToolbarSelectOption(_ref) {
  var onSelect = _ref.onSelect,
      label = _ref.label,
      selected = _ref.selected;

  return _react2.default.createElement(
    'li',
    {
      onMouseOver: function onMouseOver(e) {
        e.target.className = 'hover';
      },
      onMouseOut: function onMouseOut(e) {
        e.target.className = null;
      },
      onMouseDown: preventDefault,
      onMouseUp: onSelect },
    label,
    selected && _react2.default.createElement(
      'svg',
      { width: '13', height: '13' },
      _react2.default.createElement('polygon', { points: '4.851,10.462 0,5.611 2.314,3.297 4.851,5.835 10.686,0 13,2.314 4.851,10.462' })
    )
  );
}

ToolbarSelectOption.propTypes = {
  onSelect: _propTypes2.default.func,
  selected: _propTypes2.default.bool,
  label: _propTypes2.default.string,
  value: _propTypes2.default.any
};

function preventDefault(e) {
  e.preventDefault();
}
}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"prop-types":233}],21:[function(require,module,exports){
(function (global){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.VariableEditor = undefined;

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

var _react = (typeof window !== "undefined" ? window['React'] : typeof global !== "undefined" ? global['React'] : null);

var _react2 = _interopRequireDefault(_react);

var _propTypes = require('prop-types');

var _propTypes2 = _interopRequireDefault(_propTypes);

var _onHasCompletion = require('../utility/onHasCompletion');

var _onHasCompletion2 = _interopRequireDefault(_onHasCompletion);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; } /**
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *  Copyright (c) Facebook, Inc.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *  All rights reserved.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *  This source code is licensed under the license found in the
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *  LICENSE file in the root directory of this source tree.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                */

/**
 * VariableEditor
 *
 * An instance of CodeMirror for editing variables defined in QueryEditor.
 *
 * Props:
 *
 *   - variableToType: A mapping of variable name to GraphQLType.
 *   - value: The text of the editor.
 *   - onEdit: A function called when the editor changes, given the edited text.
 *   - readOnly: Turns the editor to read-only mode.
 *
 */
var VariableEditor = exports.VariableEditor = function (_React$Component) {
  _inherits(VariableEditor, _React$Component);

  function VariableEditor(props) {
    _classCallCheck(this, VariableEditor);

    // Keep a cached version of the value, this cache will be updated when the
    // editor is updated, which can later be used to protect the editor from
    // unnecessary updates during the update lifecycle.
    var _this = _possibleConstructorReturn(this, (VariableEditor.__proto__ || Object.getPrototypeOf(VariableEditor)).call(this));

    _this._onKeyUp = function (cm, event) {
      var code = event.keyCode;
      if (code >= 65 && code <= 90 || // letters
      !event.shiftKey && code >= 48 && code <= 57 || // numbers
      event.shiftKey && code === 189 || // underscore
      event.shiftKey && code === 222 // "
      ) {
          _this.editor.execCommand('autocomplete');
        }
    };

    _this._onEdit = function () {
      if (!_this.ignoreChangeEvent) {
        _this.cachedValue = _this.editor.getValue();
        if (_this.props.onEdit) {
          _this.props.onEdit(_this.cachedValue);
        }
      }
    };

    _this._onHasCompletion = function (cm, data) {
      (0, _onHasCompletion2.default)(cm, data, _this.props.onHintInformationRender);
    };

    _this.cachedValue = props.value || '';
    return _this;
  }

  _createClass(VariableEditor, [{
    key: 'componentDidMount',
    value: function componentDidMount() {
      var _this2 = this;

      // Lazily require to ensure requiring GraphiQL outside of a Browser context
      // does not produce an error.
      var CodeMirror = require('codemirror');
      require('codemirror/addon/hint/show-hint');
      require('codemirror/addon/edit/matchbrackets');
      require('codemirror/addon/edit/closebrackets');
      require('codemirror/addon/fold/brace-fold');
      require('codemirror/addon/fold/foldgutter');
      require('codemirror/addon/lint/lint');
      require('codemirror/addon/search/searchcursor');
      require('codemirror/addon/search/jump-to-line');
      require('codemirror/addon/dialog/dialog');
      require('codemirror/keymap/sublime');
      require('codemirror-graphql/variables/hint');
      require('codemirror-graphql/variables/lint');
      require('codemirror-graphql/variables/mode');

      this.editor = CodeMirror(this._node, {
        value: this.props.value || '',
        lineNumbers: true,
        tabSize: 2,
        mode: 'graphql-variables',
        theme: this.props.editorTheme || 'graphiql',
        keyMap: 'sublime',
        autoCloseBrackets: true,
        matchBrackets: true,
        showCursorWhenSelecting: true,
        readOnly: this.props.readOnly ? 'nocursor' : false,
        foldGutter: {
          minFoldSize: 4
        },
        lint: {
          variableToType: this.props.variableToType
        },
        hintOptions: {
          variableToType: this.props.variableToType,
          closeOnUnfocus: false,
          completeSingle: false
        },
        gutters: ['CodeMirror-linenumbers', 'CodeMirror-foldgutter'],
        extraKeys: {
          'Cmd-Space': function CmdSpace() {
            return _this2.editor.showHint({ completeSingle: false });
          },
          'Ctrl-Space': function CtrlSpace() {
            return _this2.editor.showHint({ completeSingle: false });
          },
          'Alt-Space': function AltSpace() {
            return _this2.editor.showHint({ completeSingle: false });
          },
          'Shift-Space': function ShiftSpace() {
            return _this2.editor.showHint({ completeSingle: false });
          },

          'Cmd-Enter': function CmdEnter() {
            if (_this2.props.onRunQuery) {
              _this2.props.onRunQuery();
            }
          },
          'Ctrl-Enter': function CtrlEnter() {
            if (_this2.props.onRunQuery) {
              _this2.props.onRunQuery();
            }
          },

          'Shift-Ctrl-P': function ShiftCtrlP() {
            if (_this2.props.onPrettifyQuery) {
              _this2.props.onPrettifyQuery();
            }
          },

          // Persistent search box in Query Editor
          'Cmd-F': 'findPersistent',
          'Ctrl-F': 'findPersistent',

          // Editor improvements
          'Ctrl-Left': 'goSubwordLeft',
          'Ctrl-Right': 'goSubwordRight',
          'Alt-Left': 'goGroupLeft',
          'Alt-Right': 'goGroupRight'
        }
      });

      this.editor.on('change', this._onEdit);
      this.editor.on('keyup', this._onKeyUp);
      this.editor.on('hasCompletion', this._onHasCompletion);
    }
  }, {
    key: 'componentDidUpdate',
    value: function componentDidUpdate(prevProps) {
      var CodeMirror = require('codemirror');

      // Ensure the changes caused by this update are not interpretted as
      // user-input changes which could otherwise result in an infinite
      // event loop.
      this.ignoreChangeEvent = true;
      if (this.props.variableToType !== prevProps.variableToType) {
        this.editor.options.lint.variableToType = this.props.variableToType;
        this.editor.options.hintOptions.variableToType = this.props.variableToType;
        CodeMirror.signal(this.editor, 'change', this.editor);
      }
      if (this.props.value !== prevProps.value && this.props.value !== this.cachedValue) {
        this.cachedValue = this.props.value;
        this.editor.setValue(this.props.value);
      }
      this.ignoreChangeEvent = false;
    }
  }, {
    key: 'componentWillUnmount',
    value: function componentWillUnmount() {
      this.editor.off('change', this._onEdit);
      this.editor.off('keyup', this._onKeyUp);
      this.editor.off('hasCompletion', this._onHasCompletion);
      this.editor = null;
    }
  }, {
    key: 'render',
    value: function render() {
      var _this3 = this;

      return _react2.default.createElement('div', {
        className: 'codemirrorWrap',
        ref: function ref(node) {
          _this3._node = node;
        }
      });
    }

    /**
     * Public API for retrieving the CodeMirror instance from this
     * React component.
     */

  }, {
    key: 'getCodeMirror',
    value: function getCodeMirror() {
      return this.editor;
    }

    /**
     * Public API for retrieving the DOM client height for this component.
     */

  }, {
    key: 'getClientHeight',
    value: function getClientHeight() {
      return this._node && this._node.clientHeight;
    }
  }]);

  return VariableEditor;
}(_react2.default.Component);

VariableEditor.propTypes = {
  variableToType: _propTypes2.default.object,
  value: _propTypes2.default.string,
  onEdit: _propTypes2.default.func,
  readOnly: _propTypes2.default.bool,
  onHintInformationRender: _propTypes2.default.func,
  onPrettifyQuery: _propTypes2.default.func,
  onRunQuery: _propTypes2.default.func,
  editorTheme: _propTypes2.default.string
};
}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"../utility/onHasCompletion":34,"codemirror":65,"codemirror-graphql/variables/hint":49,"codemirror-graphql/variables/lint":50,"codemirror-graphql/variables/mode":51,"codemirror/addon/dialog/dialog":53,"codemirror/addon/edit/closebrackets":54,"codemirror/addon/edit/matchbrackets":55,"codemirror/addon/fold/brace-fold":56,"codemirror/addon/fold/foldgutter":58,"codemirror/addon/hint/show-hint":59,"codemirror/addon/lint/lint":60,"codemirror/addon/search/jump-to-line":61,"codemirror/addon/search/searchcursor":63,"codemirror/keymap/sublime":64,"prop-types":233}],22:[function(require,module,exports){
'use strict';

/**
 *  Copyright (c) Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the license found in the
 *  LICENSE file in the root directory of this source tree.
 */

// The primary React component to use.
module.exports = require('./components/GraphiQL').GraphiQL;
},{"./components/GraphiQL":12}],23:[function(require,module,exports){
"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

/**
 *  Copyright (c) Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the license found in the
 *  LICENSE file in the root directory of this source tree.
 */

/**
 * When a containing DOM node's height has been altered, trigger a resize of
 * the related CodeMirror instance so that it is always correctly sized.
 */
var CodeMirrorSizer = function () {
  function CodeMirrorSizer() {
    _classCallCheck(this, CodeMirrorSizer);

    this.sizes = [];
  }

  _createClass(CodeMirrorSizer, [{
    key: "updateSizes",
    value: function updateSizes(components) {
      var _this = this;

      components.forEach(function (component, i) {
        var size = component.getClientHeight();
        if (i <= _this.sizes.length && size !== _this.sizes[i]) {
          component.getCodeMirror().setSize();
        }
        _this.sizes[i] = size;
      });
    }
  }]);

  return CodeMirrorSizer;
}();

exports.default = CodeMirrorSizer;
},{}],24:[function(require,module,exports){
"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

var QueryStore = function () {
  function QueryStore(key, storage) {
    _classCallCheck(this, QueryStore);

    this.key = key;
    this.storage = storage;
    this.items = this.fetchAll();
  }

  _createClass(QueryStore, [{
    key: "contains",
    value: function contains(item) {
      return this.items.some(function (x) {
        return x.query === item.query && x.variables === item.variables && x.operationName === item.operationName;
      });
    }
  }, {
    key: "delete",
    value: function _delete(item) {
      var index = this.items.findIndex(function (x) {
        return x.query === item.query && x.variables === item.variables && x.operationName === item.operationName;
      });
      if (index !== -1) {
        this.items.splice(index, 1);
        this.save();
      }
    }
  }, {
    key: "fetchRecent",
    value: function fetchRecent() {
      return this.items[this.items.length - 1];
    }
  }, {
    key: "fetchAll",
    value: function fetchAll() {
      var raw = this.storage.get(this.key);
      if (raw) {
        return JSON.parse(raw)[this.key];
      }
      return [];
    }
  }, {
    key: "push",
    value: function push(item) {
      this.items.push(item);
      this.save();
    }
  }, {
    key: "shift",
    value: function shift() {
      this.items.shift();
      this.save();
    }
  }, {
    key: "save",
    value: function save() {
      this.storage.set(this.key, JSON.stringify(_defineProperty({}, this.key, this.items)));
    }
  }, {
    key: "length",
    get: function get() {
      return this.items.length;
    }
  }]);

  return QueryStore;
}();

exports.default = QueryStore;
},{}],25:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

/**
 *  Copyright (c) Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the license found in the
 *  LICENSE file in the root directory of this source tree.
 */

var StorageAPI = function () {
  function StorageAPI(storage) {
    _classCallCheck(this, StorageAPI);

    this.storage = storage || window.localStorage;
  }

  _createClass(StorageAPI, [{
    key: 'get',
    value: function get(name) {
      if (this.storage) {
        var value = this.storage.getItem('graphiql:' + name);
        // Clean up any inadvertently saved null/undefined values.
        if (value === 'null' || value === 'undefined') {
          this.storage.removeItem('graphiql:' + name);
        } else {
          return value;
        }
      }
    }
  }, {
    key: 'set',
    value: function set(name, value) {
      if (this.storage) {
        var key = 'graphiql:' + name;
        if (value) {
          if (isStorageAvailable(this.storage, key, value)) {
            this.storage.setItem(key, value);
          }
        } else {
          // Clean up by removing the item if there's no value to set
          this.storage.removeItem(key);
        }
      }
    }
  }]);

  return StorageAPI;
}();

exports.default = StorageAPI;


function isStorageAvailable(storage, key, value) {
  try {
    storage.setItem(key, value);
    return true;
  } catch (e) {
    return e instanceof DOMException && (
    // everything except Firefox
    e.code === 22 ||
    // Firefox
    e.code === 1014 ||
    // test name field too, because code might not be present
    // everything except Firefox
    e.name === 'QuotaExceededError' ||
    // Firefox
    e.name === 'NS_ERROR_DOM_QUOTA_REACHED') &&
    // acknowledge QuotaExceededError only if there's something already stored
    storage.length !== 0;
  }
}
},{}],26:[function(require,module,exports){
"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = debounce;
/**
 *  Copyright (c) Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the license found in the
 *  LICENSE file in the root directory of this source tree.
 */

/**
 * Provided a duration and a function, returns a new function which is called
 * `duration` milliseconds after the last call.
 */
function debounce(duration, fn) {
  var timeout = void 0;
  return function () {
    var _this = this,
        _arguments = arguments;

    clearTimeout(timeout);
    timeout = setTimeout(function () {
      timeout = null;
      fn.apply(_this, _arguments);
    }, duration);
  };
}
},{}],27:[function(require,module,exports){
"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.getLeft = getLeft;
exports.getTop = getTop;
/**
 *  Copyright (c) Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the license found in the
 *  LICENSE file in the root directory of this source tree.
 */

/**
 * Utility functions to get a pixel distance from left/top of the window.
 */

function getLeft(initialElem) {
  var pt = 0;
  var elem = initialElem;
  while (elem.offsetParent) {
    pt += elem.offsetLeft;
    elem = elem.offsetParent;
  }
  return pt;
}

function getTop(initialElem) {
  var pt = 0;
  var elem = initialElem;
  while (elem.offsetParent) {
    pt += elem.offsetTop;
    elem = elem.offsetParent;
  }
  return pt;
}
},{}],28:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.fillLeafs = fillLeafs;

var _graphql = require('graphql');

/**
 * Given a document string which may not be valid due to terminal fields not
 * representing leaf values (Spec Section: "Leaf Field Selections"), and a
 * function which provides reasonable default field names for a given type,
 * this function will attempt to produce a schema which is valid after filling
 * in selection sets for the invalid fields.
 *
 * Note that there is no guarantee that the result will be a valid query, this
 * utility represents a "best effort" which may be useful within IDE tools.
 */
function fillLeafs(schema, docString, getDefaultFieldNames) {
  var insertions = [];

  if (!schema) {
    return { insertions: insertions, result: docString };
  }

  var ast = void 0;
  try {
    ast = (0, _graphql.parse)(docString);
  } catch (error) {
    return { insertions: insertions, result: docString };
  }

  var fieldNameFn = getDefaultFieldNames || defaultGetDefaultFieldNames;
  var typeInfo = new _graphql.TypeInfo(schema);
  (0, _graphql.visit)(ast, {
    leave: function leave(node) {
      typeInfo.leave(node);
    },
    enter: function enter(node) {
      typeInfo.enter(node);
      if (node.kind === 'Field' && !node.selectionSet) {
        var fieldType = typeInfo.getType();
        var selectionSet = buildSelectionSet(fieldType, fieldNameFn);
        if (selectionSet) {
          var indent = getIndentation(docString, node.loc.start);
          insertions.push({
            index: node.loc.end,
            string: ' ' + (0, _graphql.print)(selectionSet).replace(/\n/g, '\n' + indent)
          });
        }
      }
    }
  });

  // Apply the insertions, but also return the insertions metadata.
  return {
    insertions: insertions,
    result: withInsertions(docString, insertions)
  };
}

// The default function to use for producing the default fields from a type.
// This function first looks for some common patterns, and falls back to
// including all leaf-type fields.
/**
 *  Copyright (c) Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the license found in the
 *  LICENSE file in the root directory of this source tree.
 */

function defaultGetDefaultFieldNames(type) {
  // If this type cannot access fields, then return an empty set.
  if (!type.getFields) {
    return [];
  }

  var fields = type.getFields();

  // Is there an `id` field?
  if (fields['id']) {
    return ['id'];
  }

  // Is there an `edges` field?
  if (fields['edges']) {
    return ['edges'];
  }

  // Is there an `node` field?
  if (fields['node']) {
    return ['node'];
  }

  // Include all leaf-type fields.
  var leafFieldNames = [];
  Object.keys(fields).forEach(function (fieldName) {
    if ((0, _graphql.isLeafType)(fields[fieldName].type)) {
      leafFieldNames.push(fieldName);
    }
  });
  return leafFieldNames;
}

// Given a GraphQL type, and a function which produces field names, recursively
// generate a SelectionSet which includes default fields.
function buildSelectionSet(type, getDefaultFieldNames) {
  // Unwrap any non-null or list types.
  var namedType = (0, _graphql.getNamedType)(type);

  // Unknown types and leaf types do not have selection sets.
  if (!type || (0, _graphql.isLeafType)(type)) {
    return;
  }

  // Get an array of field names to use.
  var fieldNames = getDefaultFieldNames(namedType);

  // If there are no field names to use, return no selection set.
  if (!Array.isArray(fieldNames) || fieldNames.length === 0) {
    return;
  }

  // Build a selection set of each field, calling buildSelectionSet recursively.
  return {
    kind: 'SelectionSet',
    selections: fieldNames.map(function (fieldName) {
      var fieldDef = namedType.getFields()[fieldName];
      var fieldType = fieldDef ? fieldDef.type : null;
      return {
        kind: 'Field',
        name: {
          kind: 'Name',
          value: fieldName
        },
        selectionSet: buildSelectionSet(fieldType, getDefaultFieldNames)
      };
    })
  };
}

// Given an initial string, and a list of "insertion" { index, string } objects,
// return a new string with these insertions applied.
function withInsertions(initial, insertions) {
  if (insertions.length === 0) {
    return initial;
  }
  var edited = '';
  var prevIndex = 0;
  insertions.forEach(function (_ref) {
    var index = _ref.index,
        string = _ref.string;

    edited += initial.slice(prevIndex, index) + string;
    prevIndex = index;
  });
  edited += initial.slice(prevIndex);
  return edited;
}

// Given a string and an index, look backwards to find the string of whitespace
// following the next previous line break.
function getIndentation(str, index) {
  var indentStart = index;
  var indentEnd = index;
  while (indentStart) {
    var c = str.charCodeAt(indentStart - 1);
    // line break
    if (c === 10 || c === 13 || c === 0x2028 || c === 0x2029) {
      break;
    }
    indentStart--;
    // not white space
    if (c !== 9 && c !== 11 && c !== 12 && c !== 32 && c !== 160) {
      indentEnd = indentStart;
    }
  }
  return str.substring(indentStart, indentEnd);
}
},{"graphql":95}],29:[function(require,module,exports){
"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = find;

/* eslint-disable no-undef */
/**
 *  Copyright (c) Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the license found in the
 *  LICENSE file in the root directory of this source tree.
 */

function find(list, predicate) {
  for (var i = 0; i < list.length; i++) {
    if (predicate(list[i])) {
      return list[i];
    }
  }
}
},{}],30:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = getQueryFacts;
exports.collectVariables = collectVariables;

var _graphql = require('graphql');

/**
 * Provided previous "queryFacts", a GraphQL schema, and a query document
 * string, return a set of facts about that query useful for GraphiQL features.
 *
 * If the query cannot be parsed, returns undefined.
 */
function getQueryFacts(schema, documentStr) {
  if (!documentStr) {
    return;
  }

  var documentAST = void 0;
  try {
    documentAST = (0, _graphql.parse)(documentStr);
  } catch (e) {
    return;
  }

  var variableToType = schema ? collectVariables(schema, documentAST) : null;

  // Collect operations by their names.
  var operations = [];
  documentAST.definitions.forEach(function (def) {
    if (def.kind === 'OperationDefinition') {
      operations.push(def);
    }
  });

  return { variableToType: variableToType, operations: operations };
}

/**
 * Provided a schema and a document, produces a `variableToType` Object.
 */
/**
 *  Copyright (c) Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the license found in the
 *  LICENSE file in the root directory of this source tree.
 */

function collectVariables(schema, documentAST) {
  var variableToType = Object.create(null);
  documentAST.definitions.forEach(function (definition) {
    if (definition.kind === 'OperationDefinition') {
      var variableDefinitions = definition.variableDefinitions;
      if (variableDefinitions) {
        variableDefinitions.forEach(function (_ref) {
          var variable = _ref.variable,
              type = _ref.type;

          var inputType = (0, _graphql.typeFromAST)(schema, type);
          if (inputType) {
            variableToType[variable.name.value] = inputType;
          }
        });
      }
    }
  });
  return variableToType;
}
},{"graphql":95}],31:[function(require,module,exports){
"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = getSelectedOperationName;
/**
 *  Copyright (c) Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the license found in the
 *  LICENSE file in the root directory of this source tree.
 */

/**
 * Provided optional previous operations and selected name, and a next list of
 * operations, determine what the next selected operation should be.
 */
function getSelectedOperationName(prevOperations, prevSelectedOperationName, operations) {
  // If there are not enough operations to bother with, return nothing.
  if (!operations || operations.length < 1) {
    return;
  }

  // If a previous selection still exists, continue to use it.
  var names = operations.map(function (op) {
    return op.name && op.name.value;
  });
  if (prevSelectedOperationName && names.indexOf(prevSelectedOperationName) !== -1) {
    return prevSelectedOperationName;
  }

  // If a previous selection was the Nth operation, use the same Nth.
  if (prevSelectedOperationName && prevOperations) {
    var prevNames = prevOperations.map(function (op) {
      return op.name && op.name.value;
    });
    var prevIndex = prevNames.indexOf(prevSelectedOperationName);
    if (prevIndex !== -1 && prevIndex < names.length) {
      return names[prevIndex];
    }
  }

  // Use the first operation.
  return names[0];
}
},{}],32:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _graphql = require('graphql');

Object.defineProperty(exports, 'introspectionQuery', {
  enumerable: true,
  get: function get() {
    return _graphql.introspectionQuery;
  }
});


// Some GraphQL services do not support subscriptions and fail an introspection
// query which includes the `subscriptionType` field as the stock introspection
// query does. This backup query removes that field.
var introspectionQuerySansSubscriptions = exports.introspectionQuerySansSubscriptions = '\n  query IntrospectionQuery {\n    __schema {\n      queryType { name }\n      mutationType { name }\n      types {\n        ...FullType\n      }\n      directives {\n        name\n        description\n        locations\n        args {\n          ...InputValue\n        }\n      }\n    }\n  }\n\n  fragment FullType on __Type {\n    kind\n    name\n    description\n    fields(includeDeprecated: true) {\n      name\n      description\n      args {\n        ...InputValue\n      }\n      type {\n        ...TypeRef\n      }\n      isDeprecated\n      deprecationReason\n    }\n    inputFields {\n      ...InputValue\n    }\n    interfaces {\n      ...TypeRef\n    }\n    enumValues(includeDeprecated: true) {\n      name\n      description\n      isDeprecated\n      deprecationReason\n    }\n    possibleTypes {\n      ...TypeRef\n    }\n  }\n\n  fragment InputValue on __InputValue {\n    name\n    description\n    type { ...TypeRef }\n    defaultValue\n  }\n\n  fragment TypeRef on __Type {\n    kind\n    name\n    ofType {\n      kind\n      name\n      ofType {\n        kind\n        name\n        ofType {\n          kind\n          name\n          ofType {\n            kind\n            name\n            ofType {\n              kind\n              name\n              ofType {\n                kind\n                name\n                ofType {\n                  kind\n                  name\n                }\n              }\n            }\n          }\n        }\n      }\n    }\n  }\n';
},{"graphql":95}],33:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.normalizeWhitespace = normalizeWhitespace;
/**
 *  Copyright (c) Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the license found in the
 *  LICENSE file in the root directory of this source tree.
 */

// Unicode whitespace characters that break the interface.
var invalidCharacters = exports.invalidCharacters = Array.from({ length: 11 }, function (x, i) {
  // \u2000 -> \u200a
  return String.fromCharCode(0x2000 + i);
}).concat(['\u2028', '\u2029', '\u202F']);

var sanitizeRegex = new RegExp('[' + invalidCharacters.join('|') + ']', 'g');

function normalizeWhitespace(line) {
  return line.replace(sanitizeRegex, ' ');
}
},{}],34:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = onHasCompletion;

var _graphql = require('graphql');

var _markdownIt = require('markdown-it');

var _markdownIt2 = _interopRequireDefault(_markdownIt);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

/**
 *  Copyright (c) Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the license found in the
 *  LICENSE file in the root directory of this source tree.
 */

var md = new _markdownIt2.default();

/**
 * Render a custom UI for CodeMirror's hint which includes additional info
 * about the type and description for the selected context.
 */
function onHasCompletion(cm, data, onHintInformationRender) {
  var CodeMirror = require('codemirror');

  var information = void 0;
  var deprecation = void 0;

  // When a hint result is selected, we augment the UI with information.
  CodeMirror.on(data, 'select', function (ctx, el) {
    // Only the first time (usually when the hint UI is first displayed)
    // do we create the information nodes.
    if (!information) {
      var hintsUl = el.parentNode;

      // This "information" node will contain the additional info about the
      // highlighted typeahead option.
      information = document.createElement('div');
      information.className = 'CodeMirror-hint-information';
      hintsUl.appendChild(information);

      // This "deprecation" node will contain info about deprecated usage.
      deprecation = document.createElement('div');
      deprecation.className = 'CodeMirror-hint-deprecation';
      hintsUl.appendChild(deprecation);

      // When CodeMirror attempts to remove the hint UI, we detect that it was
      // removed and in turn remove the information nodes.
      var _onRemoveFn = void 0;
      hintsUl.addEventListener('DOMNodeRemoved', _onRemoveFn = function onRemoveFn(event) {
        if (event.target === hintsUl) {
          hintsUl.removeEventListener('DOMNodeRemoved', _onRemoveFn);
          information = null;
          deprecation = null;
          _onRemoveFn = null;
        }
      });
    }

    // Now that the UI has been set up, add info to information.
    var description = ctx.description ? md.render(ctx.description) : 'Self descriptive.';
    var type = ctx.type ? '<span class="infoType">' + renderType(ctx.type) + '</span>' : '';

    information.innerHTML = '<div class="content">' + (description.slice(0, 3) === '<p>' ? '<p>' + type + description.slice(3) : type + description) + '</div>';

    if (ctx.isDeprecated) {
      var reason = ctx.deprecationReason ? md.render(ctx.deprecationReason) : '';
      deprecation.innerHTML = '<span class="deprecation-label">Deprecated</span>' + reason;
      deprecation.style.display = 'block';
    } else {
      deprecation.style.display = 'none';
    }

    // Additional rendering?
    if (onHintInformationRender) {
      onHintInformationRender(information);
    }
  });
}

function renderType(type) {
  if (type instanceof _graphql.GraphQLNonNull) {
    return renderType(type.ofType) + '!';
  }
  if (type instanceof _graphql.GraphQLList) {
    return '[' + renderType(type.ofType) + ']';
  }
  return '<a class="typeName">' + type.name + '</a>';
}
},{"codemirror":65,"graphql":95,"markdown-it":172}],35:[function(require,module,exports){
(function (global){
'use strict';

// compare and isBuffer taken from https://github.com/feross/buffer/blob/680e9e5e488f22aac27599a57dc844a6315928dd/index.js
// original notice:

/*!
 * The buffer module from node.js, for the browser.
 *
 * @author   Feross Aboukhadijeh <feross@feross.org> <http://feross.org>
 * @license  MIT
 */
function compare(a, b) {
  if (a === b) {
    return 0;
  }

  var x = a.length;
  var y = b.length;

  for (var i = 0, len = Math.min(x, y); i < len; ++i) {
    if (a[i] !== b[i]) {
      x = a[i];
      y = b[i];
      break;
    }
  }

  if (x < y) {
    return -1;
  }
  if (y < x) {
    return 1;
  }
  return 0;
}
function isBuffer(b) {
  if (global.Buffer && typeof global.Buffer.isBuffer === 'function') {
    return global.Buffer.isBuffer(b);
  }
  return !!(b != null && b._isBuffer);
}

// based on node assert, original notice:

// http://wiki.commonjs.org/wiki/Unit_Testing/1.0
//
// THIS IS NOT TESTED NOR LIKELY TO WORK OUTSIDE V8!
//
// Originally from narwhal.js (http://narwhaljs.org)
// Copyright (c) 2009 Thomas Robinson <280north.com>
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the 'Software'), to
// deal in the Software without restriction, including without limitation the
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
// ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

var util = require('util/');
var hasOwn = Object.prototype.hasOwnProperty;
var pSlice = Array.prototype.slice;
var functionsHaveNames = (function () {
  return function foo() {}.name === 'foo';
}());
function pToString (obj) {
  return Object.prototype.toString.call(obj);
}
function isView(arrbuf) {
  if (isBuffer(arrbuf)) {
    return false;
  }
  if (typeof global.ArrayBuffer !== 'function') {
    return false;
  }
  if (typeof ArrayBuffer.isView === 'function') {
    return ArrayBuffer.isView(arrbuf);
  }
  if (!arrbuf) {
    return false;
  }
  if (arrbuf instanceof DataView) {
    return true;
  }
  if (arrbuf.buffer && arrbuf.buffer instanceof ArrayBuffer) {
    return true;
  }
  return false;
}
// 1. The assert module provides functions that throw
// AssertionError's when particular conditions are not met. The
// assert module must conform to the following interface.

var assert = module.exports = ok;

// 2. The AssertionError is defined in assert.
// new assert.AssertionError({ message: message,
//                             actual: actual,
//                             expected: expected })

var regex = /\s*function\s+([^\(\s]*)\s*/;
// based on https://github.com/ljharb/function.prototype.name/blob/adeeeec8bfcc6068b187d7d9fb3d5bb1d3a30899/implementation.js
function getName(func) {
  if (!util.isFunction(func)) {
    return;
  }
  if (functionsHaveNames) {
    return func.name;
  }
  var str = func.toString();
  var match = str.match(regex);
  return match && match[1];
}
assert.AssertionError = function AssertionError(options) {
  this.name = 'AssertionError';
  this.actual = options.actual;
  this.expected = options.expected;
  this.operator = options.operator;
  if (options.message) {
    this.message = options.message;
    this.generatedMessage = false;
  } else {
    this.message = getMessage(this);
    this.generatedMessage = true;
  }
  var stackStartFunction = options.stackStartFunction || fail;
  if (Error.captureStackTrace) {
    Error.captureStackTrace(this, stackStartFunction);
  } else {
    // non v8 browsers so we can have a stacktrace
    var err = new Error();
    if (err.stack) {
      var out = err.stack;

      // try to strip useless frames
      var fn_name = getName(stackStartFunction);
      var idx = out.indexOf('\n' + fn_name);
      if (idx >= 0) {
        // once we have located the function frame
        // we need to strip out everything before it (and its line)
        var next_line = out.indexOf('\n', idx + 1);
        out = out.substring(next_line + 1);
      }

      this.stack = out;
    }
  }
};

// assert.AssertionError instanceof Error
util.inherits(assert.AssertionError, Error);

function truncate(s, n) {
  if (typeof s === 'string') {
    return s.length < n ? s : s.slice(0, n);
  } else {
    return s;
  }
}
function inspect(something) {
  if (functionsHaveNames || !util.isFunction(something)) {
    return util.inspect(something);
  }
  var rawname = getName(something);
  var name = rawname ? ': ' + rawname : '';
  return '[Function' +  name + ']';
}
function getMessage(self) {
  return truncate(inspect(self.actual), 128) + ' ' +
         self.operator + ' ' +
         truncate(inspect(self.expected), 128);
}

// At present only the three keys mentioned above are used and
// understood by the spec. Implementations or sub modules can pass
// other keys to the AssertionError's constructor - they will be
// ignored.

// 3. All of the following functions must throw an AssertionError
// when a corresponding condition is not met, with a message that
// may be undefined if not provided.  All assertion methods provide
// both the actual and expected values to the assertion error for
// display purposes.

function fail(actual, expected, message, operator, stackStartFunction) {
  throw new assert.AssertionError({
    message: message,
    actual: actual,
    expected: expected,
    operator: operator,
    stackStartFunction: stackStartFunction
  });
}

// EXTENSION! allows for well behaved errors defined elsewhere.
assert.fail = fail;

// 4. Pure assertion tests whether a value is truthy, as determined
// by !!guard.
// assert.ok(guard, message_opt);
// This statement is equivalent to assert.equal(true, !!guard,
// message_opt);. To test strictly for the value true, use
// assert.strictEqual(true, guard, message_opt);.

function ok(value, message) {
  if (!value) fail(value, true, message, '==', assert.ok);
}
assert.ok = ok;

// 5. The equality assertion tests shallow, coercive equality with
// ==.
// assert.equal(actual, expected, message_opt);

assert.equal = function equal(actual, expected, message) {
  if (actual != expected) fail(actual, expected, message, '==', assert.equal);
};

// 6. The non-equality assertion tests for whether two objects are not equal
// with != assert.notEqual(actual, expected, message_opt);

assert.notEqual = function notEqual(actual, expected, message) {
  if (actual == expected) {
    fail(actual, expected, message, '!=', assert.notEqual);
  }
};

// 7. The equivalence assertion tests a deep equality relation.
// assert.deepEqual(actual, expected, message_opt);

assert.deepEqual = function deepEqual(actual, expected, message) {
  if (!_deepEqual(actual, expected, false)) {
    fail(actual, expected, message, 'deepEqual', assert.deepEqual);
  }
};

assert.deepStrictEqual = function deepStrictEqual(actual, expected, message) {
  if (!_deepEqual(actual, expected, true)) {
    fail(actual, expected, message, 'deepStrictEqual', assert.deepStrictEqual);
  }
};

function _deepEqual(actual, expected, strict, memos) {
  // 7.1. All identical values are equivalent, as determined by ===.
  if (actual === expected) {
    return true;
  } else if (isBuffer(actual) && isBuffer(expected)) {
    return compare(actual, expected) === 0;

  // 7.2. If the expected value is a Date object, the actual value is
  // equivalent if it is also a Date object that refers to the same time.
  } else if (util.isDate(actual) && util.isDate(expected)) {
    return actual.getTime() === expected.getTime();

  // 7.3 If the expected value is a RegExp object, the actual value is
  // equivalent if it is also a RegExp object with the same source and
  // properties (`global`, `multiline`, `lastIndex`, `ignoreCase`).
  } else if (util.isRegExp(actual) && util.isRegExp(expected)) {
    return actual.source === expected.source &&
           actual.global === expected.global &&
           actual.multiline === expected.multiline &&
           actual.lastIndex === expected.lastIndex &&
           actual.ignoreCase === expected.ignoreCase;

  // 7.4. Other pairs that do not both pass typeof value == 'object',
  // equivalence is determined by ==.
  } else if ((actual === null || typeof actual !== 'object') &&
             (expected === null || typeof expected !== 'object')) {
    return strict ? actual === expected : actual == expected;

  // If both values are instances of typed arrays, wrap their underlying
  // ArrayBuffers in a Buffer each to increase performance
  // This optimization requires the arrays to have the same type as checked by
  // Object.prototype.toString (aka pToString). Never perform binary
  // comparisons for Float*Arrays, though, since e.g. +0 === -0 but their
  // bit patterns are not identical.
  } else if (isView(actual) && isView(expected) &&
             pToString(actual) === pToString(expected) &&
             !(actual instanceof Float32Array ||
               actual instanceof Float64Array)) {
    return compare(new Uint8Array(actual.buffer),
                   new Uint8Array(expected.buffer)) === 0;

  // 7.5 For all other Object pairs, including Array objects, equivalence is
  // determined by having the same number of owned properties (as verified
  // with Object.prototype.hasOwnProperty.call), the same set of keys
  // (although not necessarily the same order), equivalent values for every
  // corresponding key, and an identical 'prototype' property. Note: this
  // accounts for both named and indexed properties on Arrays.
  } else if (isBuffer(actual) !== isBuffer(expected)) {
    return false;
  } else {
    memos = memos || {actual: [], expected: []};

    var actualIndex = memos.actual.indexOf(actual);
    if (actualIndex !== -1) {
      if (actualIndex === memos.expected.indexOf(expected)) {
        return true;
      }
    }

    memos.actual.push(actual);
    memos.expected.push(expected);

    return objEquiv(actual, expected, strict, memos);
  }
}

function isArguments(object) {
  return Object.prototype.toString.call(object) == '[object Arguments]';
}

function objEquiv(a, b, strict, actualVisitedObjects) {
  if (a === null || a === undefined || b === null || b === undefined)
    return false;
  // if one is a primitive, the other must be same
  if (util.isPrimitive(a) || util.isPrimitive(b))
    return a === b;
  if (strict && Object.getPrototypeOf(a) !== Object.getPrototypeOf(b))
    return false;
  var aIsArgs = isArguments(a);
  var bIsArgs = isArguments(b);
  if ((aIsArgs && !bIsArgs) || (!aIsArgs && bIsArgs))
    return false;
  if (aIsArgs) {
    a = pSlice.call(a);
    b = pSlice.call(b);
    return _deepEqual(a, b, strict);
  }
  var ka = objectKeys(a);
  var kb = objectKeys(b);
  var key, i;
  // having the same number of owned properties (keys incorporates
  // hasOwnProperty)
  if (ka.length !== kb.length)
    return false;
  //the same set of keys (although not necessarily the same order),
  ka.sort();
  kb.sort();
  //~~~cheap key test
  for (i = ka.length - 1; i >= 0; i--) {
    if (ka[i] !== kb[i])
      return false;
  }
  //equivalent values for every corresponding key, and
  //~~~possibly expensive deep test
  for (i = ka.length - 1; i >= 0; i--) {
    key = ka[i];
    if (!_deepEqual(a[key], b[key], strict, actualVisitedObjects))
      return false;
  }
  return true;
}

// 8. The non-equivalence assertion tests for any deep inequality.
// assert.notDeepEqual(actual, expected, message_opt);

assert.notDeepEqual = function notDeepEqual(actual, expected, message) {
  if (_deepEqual(actual, expected, false)) {
    fail(actual, expected, message, 'notDeepEqual', assert.notDeepEqual);
  }
};

assert.notDeepStrictEqual = notDeepStrictEqual;
function notDeepStrictEqual(actual, expected, message) {
  if (_deepEqual(actual, expected, true)) {
    fail(actual, expected, message, 'notDeepStrictEqual', notDeepStrictEqual);
  }
}


// 9. The strict equality assertion tests strict equality, as determined by ===.
// assert.strictEqual(actual, expected, message_opt);

assert.strictEqual = function strictEqual(actual, expected, message) {
  if (actual !== expected) {
    fail(actual, expected, message, '===', assert.strictEqual);
  }
};

// 10. The strict non-equality assertion tests for strict inequality, as
// determined by !==.  assert.notStrictEqual(actual, expected, message_opt);

assert.notStrictEqual = function notStrictEqual(actual, expected, message) {
  if (actual === expected) {
    fail(actual, expected, message, '!==', assert.notStrictEqual);
  }
};

function expectedException(actual, expected) {
  if (!actual || !expected) {
    return false;
  }

  if (Object.prototype.toString.call(expected) == '[object RegExp]') {
    return expected.test(actual);
  }

  try {
    if (actual instanceof expected) {
      return true;
    }
  } catch (e) {
    // Ignore.  The instanceof check doesn't work for arrow functions.
  }

  if (Error.isPrototypeOf(expected)) {
    return false;
  }

  return expected.call({}, actual) === true;
}

function _tryBlock(block) {
  var error;
  try {
    block();
  } catch (e) {
    error = e;
  }
  return error;
}

function _throws(shouldThrow, block, expected, message) {
  var actual;

  if (typeof block !== 'function') {
    throw new TypeError('"block" argument must be a function');
  }

  if (typeof expected === 'string') {
    message = expected;
    expected = null;
  }

  actual = _tryBlock(block);

  message = (expected && expected.name ? ' (' + expected.name + ').' : '.') +
            (message ? ' ' + message : '.');

  if (shouldThrow && !actual) {
    fail(actual, expected, 'Missing expected exception' + message);
  }

  var userProvidedMessage = typeof message === 'string';
  var isUnwantedException = !shouldThrow && util.isError(actual);
  var isUnexpectedException = !shouldThrow && actual && !expected;

  if ((isUnwantedException &&
      userProvidedMessage &&
      expectedException(actual, expected)) ||
      isUnexpectedException) {
    fail(actual, expected, 'Got unwanted exception' + message);
  }

  if ((shouldThrow && actual && expected &&
      !expectedException(actual, expected)) || (!shouldThrow && actual)) {
    throw actual;
  }
}

// 11. Expected to throw an error:
// assert.throws(block, Error_opt, message_opt);

assert.throws = function(block, /*optional*/error, /*optional*/message) {
  _throws(true, block, error, message);
};

// EXTENSION! This is annoying to write outside this module.
assert.doesNotThrow = function(block, /*optional*/error, /*optional*/message) {
  _throws(false, block, error, message);
};

assert.ifError = function(err) { if (err) throw err; };

var objectKeys = Object.keys || function (obj) {
  var keys = [];
  for (var key in obj) {
    if (hasOwn.call(obj, key)) keys.push(key);
  }
  return keys;
};

}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"util/":244}],36:[function(require,module,exports){
'use strict';

var _codemirror = require('codemirror');

var _codemirror2 = _interopRequireDefault(_codemirror);

var _graphqlLanguageServiceInterface = require('graphql-language-service-interface');

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

/**
 * Registers a "hint" helper for CodeMirror.
 *
 * Using CodeMirror's "hint" addon: https://codemirror.net/demo/complete.html
 * Given an editor, this helper will take the token at the cursor and return a
 * list of suggested tokens.
 *
 * Options:
 *
 *   - schema: GraphQLSchema provides the hinter with positionally relevant info
 *
 * Additional Events:
 *
 *   - hasCompletion (codemirror, data, token) - signaled when the hinter has a
 *     new list of completion suggestions.
 *
 */
/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

_codemirror2.default.registerHelper('hint', 'graphql', function (editor, options) {
  var schema = options.schema;
  if (!schema) {
    return;
  }

  var cur = editor.getCursor();
  var token = editor.getTokenAt(cur);
  var rawResults = (0, _graphqlLanguageServiceInterface.getAutocompleteSuggestions)(schema, editor.getValue(), cur, token);
  /**
   * GraphQL language service responds to the autocompletion request with
   * a different format:
   * type CompletionItem = {
   *   label: string,
   *   kind?: number,
   *   detail?: string,
   *   documentation?: string,
   *   // GraphQL Deprecation information
   *   isDeprecated?: ?string,
   *   deprecationReason?: ?string,
   * };
   *
   * Switch to codemirror-compliant format before returning results.
   */
  var tokenStart = token.type !== null && /"|\w/.test(token.string[0]) ? token.start : token.end;
  var results = {
    list: rawResults.map(function (item) {
      return {
        text: item.label,
        type: schema.getType(item.detail),
        description: item.documentation,
        isDeprecated: item.isDeprecated,
        deprecationReason: item.deprecationReason
      };
    }),
    from: { line: cur.line, column: tokenStart },
    to: { line: cur.line, column: token.end }
  };

  if (results && results.list && results.list.length > 0) {
    results.from = _codemirror2.default.Pos(results.from.line, results.from.column);
    results.to = _codemirror2.default.Pos(results.to.line, results.to.column);
    _codemirror2.default.signal(editor, 'hasCompletion', editor, results, token);
  }

  return results;
});
},{"codemirror":65,"graphql-language-service-interface":76}],37:[function(require,module,exports){
'use strict';

var _graphql = require('graphql');

var _codemirror = require('codemirror');

var _codemirror2 = _interopRequireDefault(_codemirror);

var _getTypeInfo = require('./utils/getTypeInfo');

var _getTypeInfo2 = _interopRequireDefault(_getTypeInfo);

var _SchemaReference = require('./utils/SchemaReference');

require('./utils/info-addon');

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

/**
 * Registers GraphQL "info" tooltips for CodeMirror.
 *
 * When hovering over a token, this presents a tooltip explaining it.
 *
 * Options:
 *
 *   - schema: GraphQLSchema provides positionally relevant info.
 *   - hoverTime: The number of ms to wait before showing info. (Default 500)
 *   - renderDescription: Convert a description to some HTML, Useful since
 *                        descriptions are often Markdown formatted.
 *   - onClick: A function called when a named thing is clicked.
 *
 */
_codemirror2.default.registerHelper('info', 'graphql', function (token, options) {
  if (!options.schema || !token.state) {
    return;
  }

  var state = token.state;
  var kind = state.kind;
  var step = state.step;
  var typeInfo = (0, _getTypeInfo2.default)(options.schema, token.state);

  // Given a Schema and a Token, produce the contents of an info tooltip.
  // To do this, create a div element that we will render "into" and then pass
  // it to various rendering functions.
  if (kind === 'Field' && step === 0 && typeInfo.fieldDef || kind === 'AliasedField' && step === 2 && typeInfo.fieldDef) {
    var into = document.createElement('div');
    renderField(into, typeInfo, options);
    renderDescription(into, options, typeInfo.fieldDef);
    return into;
  } else if (kind === 'Directive' && step === 1 && typeInfo.directiveDef) {
    var _into = document.createElement('div');
    renderDirective(_into, typeInfo, options);
    renderDescription(_into, options, typeInfo.directiveDef);
    return _into;
  } else if (kind === 'Argument' && step === 0 && typeInfo.argDef) {
    var _into2 = document.createElement('div');
    renderArg(_into2, typeInfo, options);
    renderDescription(_into2, options, typeInfo.argDef);
    return _into2;
  } else if (kind === 'EnumValue' && typeInfo.enumValue && typeInfo.enumValue.description) {
    var _into3 = document.createElement('div');
    renderEnumValue(_into3, typeInfo, options);
    renderDescription(_into3, options, typeInfo.enumValue);
    return _into3;
  } else if (kind === 'NamedType' && typeInfo.type && typeInfo.type.description) {
    var _into4 = document.createElement('div');
    renderType(_into4, typeInfo, options, typeInfo.type);
    renderDescription(_into4, options, typeInfo.type);
    return _into4;
  }
});
/**
 *  Copyright (c) 2017, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

function renderField(into, typeInfo, options) {
  renderQualifiedField(into, typeInfo, options);
  renderTypeAnnotation(into, typeInfo, options, typeInfo.type);
}

function renderQualifiedField(into, typeInfo, options) {
  var fieldName = typeInfo.fieldDef.name;
  if (fieldName.slice(0, 2) !== '__') {
    renderType(into, typeInfo, options, typeInfo.parentType);
    text(into, '.');
  }
  text(into, fieldName, 'field-name', options, (0, _SchemaReference.getFieldReference)(typeInfo));
}

function renderDirective(into, typeInfo, options) {
  var name = '@' + typeInfo.directiveDef.name;
  text(into, name, 'directive-name', options, (0, _SchemaReference.getDirectiveReference)(typeInfo));
}

function renderArg(into, typeInfo, options) {
  if (typeInfo.directiveDef) {
    renderDirective(into, typeInfo, options);
  } else if (typeInfo.fieldDef) {
    renderQualifiedField(into, typeInfo, options);
  }

  var name = typeInfo.argDef.name;
  text(into, '(');
  text(into, name, 'arg-name', options, (0, _SchemaReference.getArgumentReference)(typeInfo));
  renderTypeAnnotation(into, typeInfo, options, typeInfo.inputType);
  text(into, ')');
}

function renderTypeAnnotation(into, typeInfo, options, t) {
  text(into, ': ');
  renderType(into, typeInfo, options, t);
}

function renderEnumValue(into, typeInfo, options) {
  var name = typeInfo.enumValue.name;
  renderType(into, typeInfo, options, typeInfo.inputType);
  text(into, '.');
  text(into, name, 'enum-value', options, (0, _SchemaReference.getEnumValueReference)(typeInfo));
}

function renderType(into, typeInfo, options, t) {
  if (t instanceof _graphql.GraphQLNonNull) {
    renderType(into, typeInfo, options, t.ofType);
    text(into, '!');
  } else if (t instanceof _graphql.GraphQLList) {
    text(into, '[');
    renderType(into, typeInfo, options, t.ofType);
    text(into, ']');
  } else {
    text(into, t.name, 'type-name', options, (0, _SchemaReference.getTypeReference)(typeInfo, t));
  }
}

function renderDescription(into, options, def) {
  var description = def.description;
  if (description) {
    var descriptionDiv = document.createElement('div');
    descriptionDiv.className = 'info-description';
    if (options.renderDescription) {
      descriptionDiv.innerHTML = options.renderDescription(description);
    } else {
      descriptionDiv.appendChild(document.createTextNode(description));
    }
    into.appendChild(descriptionDiv);
  }

  renderDeprecation(into, options, def);
}

function renderDeprecation(into, options, def) {
  var reason = def.deprecationReason;
  if (reason) {
    var deprecationDiv = document.createElement('div');
    deprecationDiv.className = 'info-deprecation';
    if (options.renderDescription) {
      deprecationDiv.innerHTML = options.renderDescription(reason);
    } else {
      deprecationDiv.appendChild(document.createTextNode(reason));
    }
    var label = document.createElement('span');
    label.className = 'info-deprecation-label';
    label.appendChild(document.createTextNode('Deprecated: '));
    deprecationDiv.insertBefore(label, deprecationDiv.firstChild);
    into.appendChild(deprecationDiv);
  }
}

function text(into, content, className, options, ref) {
  if (className) {
    var onClick = options.onClick;
    var node = document.createElement(onClick ? 'a' : 'span');
    if (onClick) {
      // Providing a href forces proper a tag behavior, though we don't actually
      // want clicking the node to navigate anywhere.
      node.href = 'javascript:void 0'; // eslint-disable-line no-script-url
      node.addEventListener('click', function (e) {
        onClick(ref, e);
      });
    }
    node.className = className;
    node.appendChild(document.createTextNode(content));
    into.appendChild(node);
  } else {
    into.appendChild(document.createTextNode(content));
  }
}
},{"./utils/SchemaReference":42,"./utils/getTypeInfo":44,"./utils/info-addon":46,"codemirror":65,"graphql":95}],38:[function(require,module,exports){
'use strict';

var _codemirror = require('codemirror');

var _codemirror2 = _interopRequireDefault(_codemirror);

var _getTypeInfo = require('./utils/getTypeInfo');

var _getTypeInfo2 = _interopRequireDefault(_getTypeInfo);

var _SchemaReference = require('./utils/SchemaReference');

require('./utils/jump-addon');

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

/**
 * Registers GraphQL "jump" links for CodeMirror.
 *
 * When command-hovering over a token, this converts it to a link, which when
 * pressed will call the provided onClick handler.
 *
 * Options:
 *
 *   - schema: GraphQLSchema provides positionally relevant info.
 *   - onClick: A function called when a named thing is clicked.
 *
 */

/**
 *  Copyright (c) 2017, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

_codemirror2.default.registerHelper('jump', 'graphql', function (token, options) {
  if (!options.schema || !options.onClick || !token.state) {
    return;
  }

  // Given a Schema and a Token, produce a "SchemaReference" which refers to
  // the particular artifact from the schema (such as a type, field, argument,
  // or directive) that token references.
  var state = token.state;
  var kind = state.kind;
  var step = state.step;
  var typeInfo = (0, _getTypeInfo2.default)(options.schema, state);

  if (kind === 'Field' && step === 0 && typeInfo.fieldDef || kind === 'AliasedField' && step === 2 && typeInfo.fieldDef) {
    return (0, _SchemaReference.getFieldReference)(typeInfo);
  } else if (kind === 'Directive' && step === 1 && typeInfo.directiveDef) {
    return (0, _SchemaReference.getDirectiveReference)(typeInfo);
  } else if (kind === 'Argument' && step === 0 && typeInfo.argDef) {
    return (0, _SchemaReference.getArgumentReference)(typeInfo);
  } else if (kind === 'EnumValue' && typeInfo.enumValue) {
    return (0, _SchemaReference.getEnumValueReference)(typeInfo);
  } else if (kind === 'NamedType' && typeInfo.type) {
    return (0, _SchemaReference.getTypeReference)(typeInfo);
  }
});
},{"./utils/SchemaReference":42,"./utils/getTypeInfo":44,"./utils/jump-addon":48,"codemirror":65}],39:[function(require,module,exports){
'use strict';

var _codemirror = require('codemirror');

var _codemirror2 = _interopRequireDefault(_codemirror);

var _graphqlLanguageServiceInterface = require('graphql-language-service-interface');

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

var SEVERITY = ['error', 'warning', 'information', 'hint'];
var TYPE = {
  'GraphQL: Validation': 'validation',
  'GraphQL: Deprecation': 'deprecation',
  'GraphQL: Syntax': 'syntax'
};

/**
 * Registers a "lint" helper for CodeMirror.
 *
 * Using CodeMirror's "lint" addon: https://codemirror.net/demo/lint.html
 * Given the text within an editor, this helper will take that text and return
 * a list of linter issues, derived from GraphQL's parse and validate steps.
 * Also, this uses `graphql-language-service-parser` to power the diagnostics
 * service.
 *
 * Options:
 *
 *   - schema: GraphQLSchema provides the linter with positionally relevant info
 *
 */
_codemirror2.default.registerHelper('lint', 'graphql', function (text, options) {
  var schema = options.schema;
  var rawResults = (0, _graphqlLanguageServiceInterface.getDiagnostics)(text, schema);

  var results = rawResults.map(function (error) {
    return {
      message: error.message,
      severity: SEVERITY[error.severity - 1],
      type: TYPE[error.source],
      from: _codemirror2.default.Pos(error.range.start.line, error.range.start.character),
      to: _codemirror2.default.Pos(error.range.end.line, error.range.end.character)
    };
  });

  return results;
});
},{"codemirror":65,"graphql-language-service-interface":76}],40:[function(require,module,exports){
'use strict';

var _codemirror = require('codemirror');

var _codemirror2 = _interopRequireDefault(_codemirror);

var _graphqlLanguageServiceParser = require('graphql-language-service-parser');

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

/**
 * The GraphQL mode is defined as a tokenizer along with a list of rules, each
 * of which is either a function or an array.
 *
 *   * Function: Provided a token and the stream, returns an expected next step.
 *   * Array: A list of steps to take in order.
 *
 * A step is either another rule, or a terminal description of a token. If it
 * is a rule, that rule is pushed onto the stack and the parsing continues from
 * that point.
 *
 * If it is a terminal description, the token is checked against it using a
 * `match` function. If the match is successful, the token is colored and the
 * rule is stepped forward. If the match is unsuccessful, the remainder of the
 * rule is skipped and the previous rule is advanced.
 *
 * This parsing algorithm allows for incremental online parsing within various
 * levels of the syntax tree and results in a structured `state` linked-list
 * which contains the relevant information to produce valuable typeaheads.
 */
/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

_codemirror2.default.defineMode('graphql', function (config) {
  var parser = (0, _graphqlLanguageServiceParser.onlineParser)({
    eatWhitespace: function eatWhitespace(stream) {
      return stream.eatWhile(_graphqlLanguageServiceParser.isIgnored);
    },
    lexRules: _graphqlLanguageServiceParser.LexRules,
    parseRules: _graphqlLanguageServiceParser.ParseRules,
    editorConfig: { tabSize: config.tabSize }
  });

  return {
    config: config,
    startState: parser.startState,
    token: parser.token,
    indent: indent,
    electricInput: /^\s*[})\]]/,
    fold: 'brace',
    lineComment: '#',
    closeBrackets: {
      pairs: '()[]{}""',
      explode: '()[]{}'
    }
  };
});

function indent(state, textAfter) {
  var levels = state.levels;
  // If there is no stack of levels, use the current level.
  // Otherwise, use the top level, pre-emptively dedenting for close braces.
  var level = !levels || levels.length === 0 ? state.indentLevel : levels[levels.length - 1] - (this.electricInput.test(textAfter) ? 1 : 0);
  return level * this.config.indentUnit;
}
},{"codemirror":65,"graphql-language-service-parser":80}],41:[function(require,module,exports){
'use strict';

var _codemirror = require('codemirror');

var _codemirror2 = _interopRequireDefault(_codemirror);

var _graphqlLanguageServiceParser = require('graphql-language-service-parser');

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

/**
 * This mode defines JSON, but provides a data-laden parser state to enable
 * better code intelligence.
 */
/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

_codemirror2.default.defineMode('graphql-results', function (config) {
  var parser = (0, _graphqlLanguageServiceParser.onlineParser)({
    eatWhitespace: function eatWhitespace(stream) {
      return stream.eatSpace();
    },
    lexRules: LexRules,
    parseRules: ParseRules,
    editorConfig: { tabSize: config.tabSize }
  });

  return {
    config: config,
    startState: parser.startState,
    token: parser.token,
    indent: indent,
    electricInput: /^\s*[}\]]/,
    fold: 'brace',
    closeBrackets: {
      pairs: '[]{}""',
      explode: '[]{}'
    }
  };
});

function indent(state, textAfter) {
  var levels = state.levels;
  // If there is no stack of levels, use the current level.
  // Otherwise, use the top level, pre-emptively dedenting for close braces.
  var level = !levels || levels.length === 0 ? state.indentLevel : levels[levels.length - 1] - (this.electricInput.test(textAfter) ? 1 : 0);
  return level * this.config.indentUnit;
}

/**
 * The lexer rules. These are exactly as described by the spec.
 */
var LexRules = {
  // All Punctuation used in JSON.
  Punctuation: /^\[|]|\{|\}|:|,/,

  // JSON Number.
  Number: /^-?(?:0|(?:[1-9][0-9]*))(?:\.[0-9]*)?(?:[eE][+-]?[0-9]+)?/,

  // JSON String.
  String: /^"(?:[^"\\]|\\(?:"|\/|\\|b|f|n|r|t|u[0-9a-fA-F]{4}))*"?/,

  // JSON literal keywords.
  Keyword: /^true|false|null/
};

/**
 * The parser rules for JSON.
 */
var ParseRules = {
  Document: [(0, _graphqlLanguageServiceParser.p)('{'), (0, _graphqlLanguageServiceParser.list)('Entry', (0, _graphqlLanguageServiceParser.p)(',')), (0, _graphqlLanguageServiceParser.p)('}')],
  Entry: [(0, _graphqlLanguageServiceParser.t)('String', 'def'), (0, _graphqlLanguageServiceParser.p)(':'), 'Value'],
  Value: function Value(token) {
    switch (token.kind) {
      case 'Number':
        return 'NumberValue';
      case 'String':
        return 'StringValue';
      case 'Punctuation':
        switch (token.value) {
          case '[':
            return 'ListValue';
          case '{':
            return 'ObjectValue';
        }
        return null;
      case 'Keyword':
        switch (token.value) {
          case 'true':
          case 'false':
            return 'BooleanValue';
          case 'null':
            return 'NullValue';
        }
        return null;
    }
  },

  NumberValue: [(0, _graphqlLanguageServiceParser.t)('Number', 'number')],
  StringValue: [(0, _graphqlLanguageServiceParser.t)('String', 'string')],
  BooleanValue: [(0, _graphqlLanguageServiceParser.t)('Keyword', 'builtin')],
  NullValue: [(0, _graphqlLanguageServiceParser.t)('Keyword', 'keyword')],
  ListValue: [(0, _graphqlLanguageServiceParser.p)('['), (0, _graphqlLanguageServiceParser.list)('Value', (0, _graphqlLanguageServiceParser.p)(',')), (0, _graphqlLanguageServiceParser.p)(']')],
  ObjectValue: [(0, _graphqlLanguageServiceParser.p)('{'), (0, _graphqlLanguageServiceParser.list)('ObjectField', (0, _graphqlLanguageServiceParser.p)(',')), (0, _graphqlLanguageServiceParser.p)('}')],
  ObjectField: [(0, _graphqlLanguageServiceParser.t)('String', 'property'), (0, _graphqlLanguageServiceParser.p)(':'), 'Value']
};
},{"codemirror":65,"graphql-language-service-parser":80}],42:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.getFieldReference = getFieldReference;
exports.getDirectiveReference = getDirectiveReference;
exports.getArgumentReference = getArgumentReference;
exports.getEnumValueReference = getEnumValueReference;
exports.getTypeReference = getTypeReference;

var _graphql = require('graphql');

function getFieldReference(typeInfo) {
  return {
    kind: 'Field',
    schema: typeInfo.schema,
    field: typeInfo.fieldDef,
    type: isMetaField(typeInfo.fieldDef) ? null : typeInfo.parentType
  };
}
/**
 *  Copyright (c), Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

function getDirectiveReference(typeInfo) {
  return {
    kind: 'Directive',
    schema: typeInfo.schema,
    directive: typeInfo.directiveDef
  };
}

function getArgumentReference(typeInfo) {
  return typeInfo.directiveDef ? {
    kind: 'Argument',
    schema: typeInfo.schema,
    argument: typeInfo.argDef,
    directive: typeInfo.directiveDef
  } : {
    kind: 'Argument',
    schema: typeInfo.schema,
    argument: typeInfo.argDef,
    field: typeInfo.fieldDef,
    type: isMetaField(typeInfo.fieldDef) ? null : typeInfo.parentType
  };
}

function getEnumValueReference(typeInfo) {
  return {
    kind: 'EnumValue',
    value: typeInfo.enumValue,
    type: (0, _graphql.getNamedType)(typeInfo.inputType)
  };
}

// Note: for reusability, getTypeReference can produce a reference to any type,
// though it defaults to the current type.
function getTypeReference(typeInfo, type) {
  return {
    kind: 'Type',
    schema: typeInfo.schema,
    type: type || typeInfo.type
  };
}

function isMetaField(fieldDef) {
  return fieldDef.name.slice(0, 2) === '__';
}
},{"graphql":95}],43:[function(require,module,exports){
"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = forEachState;
/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

// Utility for iterating through a CodeMirror parse state stack bottom-up.
function forEachState(stack, fn) {
  var reverseStateStack = [];
  var state = stack;
  while (state && state.kind) {
    reverseStateStack.push(state);
    state = state.prevState;
  }
  for (var i = reverseStateStack.length - 1; i >= 0; i--) {
    fn(reverseStateStack[i]);
  }
}
},{}],44:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = getTypeInfo;

var _graphql = require('graphql');

var _introspection = require('graphql/type/introspection');

var _forEachState = require('./forEachState');

var _forEachState2 = _interopRequireDefault(_forEachState);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

/**
 * Utility for collecting rich type information given any token's state
 * from the graphql-mode parser.
 */
function getTypeInfo(schema, tokenState) {
  var info = {
    schema: schema,
    type: null,
    parentType: null,
    inputType: null,
    directiveDef: null,
    fieldDef: null,
    argDef: null,
    argDefs: null,
    objectFieldDefs: null
  };

  (0, _forEachState2.default)(tokenState, function (state) {
    switch (state.kind) {
      case 'Query':
      case 'ShortQuery':
        info.type = schema.getQueryType();
        break;
      case 'Mutation':
        info.type = schema.getMutationType();
        break;
      case 'Subscription':
        info.type = schema.getSubscriptionType();
        break;
      case 'InlineFragment':
      case 'FragmentDefinition':
        if (state.type) {
          info.type = schema.getType(state.type);
        }
        break;
      case 'Field':
      case 'AliasedField':
        info.fieldDef = info.type && state.name ? getFieldDef(schema, info.parentType, state.name) : null;
        info.type = info.fieldDef && info.fieldDef.type;
        break;
      case 'SelectionSet':
        info.parentType = (0, _graphql.getNamedType)(info.type);
        break;
      case 'Directive':
        info.directiveDef = state.name && schema.getDirective(state.name);
        break;
      case 'Arguments':
        var parentDef = state.prevState.kind === 'Field' ? info.fieldDef : state.prevState.kind === 'Directive' ? info.directiveDef : state.prevState.kind === 'AliasedField' ? state.prevState.name && getFieldDef(schema, info.parentType, state.prevState.name) : null;
        info.argDefs = parentDef && parentDef.args;
        break;
      case 'Argument':
        info.argDef = null;
        if (info.argDefs) {
          for (var i = 0; i < info.argDefs.length; i++) {
            if (info.argDefs[i].name === state.name) {
              info.argDef = info.argDefs[i];
              break;
            }
          }
        }
        info.inputType = info.argDef && info.argDef.type;
        break;
      case 'EnumValue':
        var enumType = (0, _graphql.getNamedType)(info.inputType);
        info.enumValue = enumType instanceof _graphql.GraphQLEnumType ? find(enumType.getValues(), function (val) {
          return val.value === state.name;
        }) : null;
        break;
      case 'ListValue':
        var nullableType = (0, _graphql.getNullableType)(info.inputType);
        info.inputType = nullableType instanceof _graphql.GraphQLList ? nullableType.ofType : null;
        break;
      case 'ObjectValue':
        var objectType = (0, _graphql.getNamedType)(info.inputType);
        info.objectFieldDefs = objectType instanceof _graphql.GraphQLInputObjectType ? objectType.getFields() : null;
        break;
      case 'ObjectField':
        var objectField = state.name && info.objectFieldDefs ? info.objectFieldDefs[state.name] : null;
        info.inputType = objectField && objectField.type;
        break;
      case 'NamedType':
        info.type = schema.getType(state.name);
        break;
    }
  });

  return info;
}

// Gets the field definition given a type and field name
/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

function getFieldDef(schema, type, fieldName) {
  if (fieldName === _introspection.SchemaMetaFieldDef.name && schema.getQueryType() === type) {
    return _introspection.SchemaMetaFieldDef;
  }
  if (fieldName === _introspection.TypeMetaFieldDef.name && schema.getQueryType() === type) {
    return _introspection.TypeMetaFieldDef;
  }
  if (fieldName === _introspection.TypeNameMetaFieldDef.name && (0, _graphql.isCompositeType)(type)) {
    return _introspection.TypeNameMetaFieldDef;
  }
  if (type.getFields) {
    return type.getFields()[fieldName];
  }
}

// Returns the first item in the array which causes predicate to return truthy.
function find(array, predicate) {
  for (var i = 0; i < array.length; i++) {
    if (predicate(array[i])) {
      return array[i];
    }
  }
}
},{"./forEachState":43,"graphql":95,"graphql/type/introspection":118}],45:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = hintList;
/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

// Create the expected hint response given a possible list and a token
function hintList(cursor, token, list) {
  var hints = filterAndSortList(list, normalizeText(token.string));
  if (!hints) {
    return;
  }

  var tokenStart = token.type !== null && /"|\w/.test(token.string[0]) ? token.start : token.end;

  return {
    list: hints,
    from: { line: cursor.line, column: tokenStart },
    to: { line: cursor.line, column: token.end }
  };
}

// Given a list of hint entries and currently typed text, sort and filter to
// provide a concise list.
function filterAndSortList(list, text) {
  if (!text) {
    return filterNonEmpty(list, function (entry) {
      return !entry.isDeprecated;
    });
  }

  var byProximity = list.map(function (entry) {
    return {
      proximity: getProximity(normalizeText(entry.text), text),
      entry: entry
    };
  });

  var conciseMatches = filterNonEmpty(filterNonEmpty(byProximity, function (pair) {
    return pair.proximity <= 2;
  }), function (pair) {
    return !pair.entry.isDeprecated;
  });

  var sortedMatches = conciseMatches.sort(function (a, b) {
    return (a.entry.isDeprecated ? 1 : 0) - (b.entry.isDeprecated ? 1 : 0) || a.proximity - b.proximity || a.entry.text.length - b.entry.text.length;
  });

  return sortedMatches.map(function (pair) {
    return pair.entry;
  });
}

// Filters the array by the predicate, unless it results in an empty array,
// in which case return the original array.
function filterNonEmpty(array, predicate) {
  var filtered = array.filter(predicate);
  return filtered.length === 0 ? array : filtered;
}

function normalizeText(text) {
  return text.toLowerCase().replace(/\W/g, '');
}

// Determine a numeric proximity for a suggestion based on current text.
function getProximity(suggestion, text) {
  // start with lexical distance
  var proximity = lexicalDistance(text, suggestion);
  if (suggestion.length > text.length) {
    // do not penalize long suggestions.
    proximity -= suggestion.length - text.length - 1;
    // penalize suggestions not starting with this phrase
    proximity += suggestion.indexOf(text) === 0 ? 0 : 0.5;
  }
  return proximity;
}

/**
 * Computes the lexical distance between strings A and B.
 *
 * The "distance" between two strings is given by counting the minimum number
 * of edits needed to transform string A into string B. An edit can be an
 * insertion, deletion, or substitution of a single character, or a swap of two
 * adjacent characters.
 *
 * This distance can be useful for detecting typos in input or sorting
 *
 * @param {string} a
 * @param {string} b
 * @return {int} distance in number of edits
 */
function lexicalDistance(a, b) {
  var i = void 0;
  var j = void 0;
  var d = [];
  var aLength = a.length;
  var bLength = b.length;

  for (i = 0; i <= aLength; i++) {
    d[i] = [i];
  }

  for (j = 1; j <= bLength; j++) {
    d[0][j] = j;
  }

  for (i = 1; i <= aLength; i++) {
    for (j = 1; j <= bLength; j++) {
      var cost = a[i - 1] === b[j - 1] ? 0 : 1;

      d[i][j] = Math.min(d[i - 1][j] + 1, d[i][j - 1] + 1, d[i - 1][j - 1] + cost);

      if (i > 1 && j > 1 && a[i - 1] === b[j - 2] && a[i - 2] === b[j - 1]) {
        d[i][j] = Math.min(d[i][j], d[i - 2][j - 2] + cost);
      }
    }
  }

  return d[aLength][bLength];
}
},{}],46:[function(require,module,exports){
'use strict';

var _codemirror = require('codemirror');

var _codemirror2 = _interopRequireDefault(_codemirror);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

_codemirror2.default.defineOption('info', false, function (cm, options, old) {
  if (old && old !== _codemirror2.default.Init) {
    var oldOnMouseOver = cm.state.info.onMouseOver;
    _codemirror2.default.off(cm.getWrapperElement(), 'mouseover', oldOnMouseOver);
    clearTimeout(cm.state.info.hoverTimeout);
    delete cm.state.info;
  }

  if (options) {
    var state = cm.state.info = createState(options);
    state.onMouseOver = onMouseOver.bind(null, cm);
    _codemirror2.default.on(cm.getWrapperElement(), 'mouseover', state.onMouseOver);
  }
}); /**
     *  Copyright (c) 2017, Facebook, Inc.
     *  All rights reserved.
     *
     *  This source code is licensed under the BSD-style license found in the
     *  LICENSE file in the root directory of this source tree. An additional grant
     *  of patent rights can be found in the PATENTS file in the same directory.
     */

function createState(options) {
  return {
    options: options instanceof Function ? { render: options } : options === true ? {} : options
  };
}

function getHoverTime(cm) {
  var options = cm.state.info.options;
  return options && options.hoverTime || 500;
}

function onMouseOver(cm, e) {
  var state = cm.state.info;

  var target = e.target || e.srcElement;
  if (target.nodeName !== 'SPAN' || state.hoverTimeout !== undefined) {
    return;
  }

  var box = target.getBoundingClientRect();

  var hoverTime = getHoverTime(cm);
  state.hoverTimeout = setTimeout(onHover, hoverTime);

  var onMouseMove = function onMouseMove() {
    clearTimeout(state.hoverTimeout);
    state.hoverTimeout = setTimeout(onHover, hoverTime);
  };

  var onMouseOut = function onMouseOut() {
    _codemirror2.default.off(document, 'mousemove', onMouseMove);
    _codemirror2.default.off(cm.getWrapperElement(), 'mouseout', onMouseOut);
    clearTimeout(state.hoverTimeout);
    state.hoverTimeout = undefined;
  };

  var onHover = function onHover() {
    _codemirror2.default.off(document, 'mousemove', onMouseMove);
    _codemirror2.default.off(cm.getWrapperElement(), 'mouseout', onMouseOut);
    state.hoverTimeout = undefined;
    onMouseHover(cm, box);
  };

  _codemirror2.default.on(document, 'mousemove', onMouseMove);
  _codemirror2.default.on(cm.getWrapperElement(), 'mouseout', onMouseOut);
}

function onMouseHover(cm, box) {
  var pos = cm.coordsChar({
    left: (box.left + box.right) / 2,
    top: (box.top + box.bottom) / 2
  });

  var state = cm.state.info;
  var options = state.options;
  var render = options.render || cm.getHelper(pos, 'info');
  if (render) {
    var token = cm.getTokenAt(pos, true);
    if (token) {
      var info = render(token, options, cm);
      if (info) {
        showPopup(cm, box, info);
      }
    }
  }
}

function showPopup(cm, box, info) {
  var popup = document.createElement('div');
  popup.className = 'CodeMirror-info';
  popup.appendChild(info);
  document.body.appendChild(popup);

  var popupBox = popup.getBoundingClientRect();
  var popupStyle = popup.currentStyle || window.getComputedStyle(popup);
  var popupWidth = popupBox.right - popupBox.left + parseFloat(popupStyle.marginLeft) + parseFloat(popupStyle.marginRight);
  var popupHeight = popupBox.bottom - popupBox.top + parseFloat(popupStyle.marginTop) + parseFloat(popupStyle.marginBottom);

  var topPos = box.bottom;
  if (popupHeight > window.innerHeight - box.bottom - 15 && box.top > window.innerHeight - box.bottom) {
    topPos = box.top - popupHeight;
  }

  if (topPos < 0) {
    topPos = box.bottom;
  }

  var leftPos = Math.max(0, window.innerWidth - popupWidth - 15);
  if (leftPos > box.left) {
    leftPos = box.left;
  }

  popup.style.opacity = 1;
  popup.style.top = topPos + 'px';
  popup.style.left = leftPos + 'px';

  var popupTimeout = void 0;

  var onMouseOverPopup = function onMouseOverPopup() {
    clearTimeout(popupTimeout);
  };

  var onMouseOut = function onMouseOut() {
    clearTimeout(popupTimeout);
    popupTimeout = setTimeout(hidePopup, 200);
  };

  var hidePopup = function hidePopup() {
    _codemirror2.default.off(popup, 'mouseover', onMouseOverPopup);
    _codemirror2.default.off(popup, 'mouseout', onMouseOut);
    _codemirror2.default.off(cm.getWrapperElement(), 'mouseout', onMouseOut);

    if (popup.style.opacity) {
      popup.style.opacity = 0;
      setTimeout(function () {
        if (popup.parentNode) {
          popup.parentNode.removeChild(popup);
        }
      }, 600);
    } else if (popup.parentNode) {
      popup.parentNode.removeChild(popup);
    }
  };

  _codemirror2.default.on(popup, 'mouseover', onMouseOverPopup);
  _codemirror2.default.on(popup, 'mouseout', onMouseOut);
  _codemirror2.default.on(cm.getWrapperElement(), 'mouseout', onMouseOut);
}
},{"codemirror":65}],47:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = jsonParse;
/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

/**
 * This JSON parser simply walks the input, generating an AST. Use this in lieu
 * of JSON.parse if you need character offset parse errors and an AST parse tree
 * with location information.
 *
 * If an error is encountered, a SyntaxError will be thrown, with properties:
 *
 *   - message: string
 *   - start: int - the start inclusive offset of the syntax error
 *   - end: int - the end exclusive offset of the syntax error
 *
 */
function jsonParse(str) {
  string = str;
  strLen = str.length;
  start = end = lastEnd = -1;
  ch();
  lex();
  var ast = parseObj();
  expect('EOF');
  return ast;
}

var string = void 0;
var strLen = void 0;
var start = void 0;
var end = void 0;
var lastEnd = void 0;
var code = void 0;
var kind = void 0;

function parseObj() {
  var nodeStart = start;
  var members = [];
  expect('{');
  if (!skip('}')) {
    do {
      members.push(parseMember());
    } while (skip(','));
    expect('}');
  }
  return {
    kind: 'Object',
    start: nodeStart,
    end: lastEnd,
    members: members
  };
}

function parseMember() {
  var nodeStart = start;
  var key = kind === 'String' ? curToken() : null;
  expect('String');
  expect(':');
  var value = parseVal();
  return {
    kind: 'Member',
    start: nodeStart,
    end: lastEnd,
    key: key,
    value: value
  };
}

function parseArr() {
  var nodeStart = start;
  var values = [];
  expect('[');
  if (!skip(']')) {
    do {
      values.push(parseVal());
    } while (skip(','));
    expect(']');
  }
  return {
    kind: 'Array',
    start: nodeStart,
    end: lastEnd,
    values: values
  };
}

function parseVal() {
  switch (kind) {
    case '[':
      return parseArr();
    case '{':
      return parseObj();
    case 'String':
    case 'Number':
    case 'Boolean':
    case 'Null':
      var token = curToken();
      lex();
      return token;
  }
  return expect('Value');
}

function curToken() {
  return { kind: kind, start: start, end: end, value: JSON.parse(string.slice(start, end)) };
}

function expect(str) {
  if (kind === str) {
    lex();
    return;
  }

  var found = void 0;
  if (kind === 'EOF') {
    found = '[end of file]';
  } else if (end - start > 1) {
    found = '`' + string.slice(start, end) + '`';
  } else {
    var match = string.slice(start).match(/^.+?\b/);
    found = '`' + (match ? match[0] : string[start]) + '`';
  }

  throw syntaxError('Expected ' + str + ' but found ' + found + '.');
}

function syntaxError(message) {
  return { message: message, start: start, end: end };
}

function skip(k) {
  if (kind === k) {
    lex();
    return true;
  }
}

function ch() {
  if (end < strLen) {
    end++;
    code = end === strLen ? 0 : string.charCodeAt(end);
  }
}

function lex() {
  lastEnd = end;

  while (code === 9 || code === 10 || code === 13 || code === 32) {
    ch();
  }

  if (code === 0) {
    kind = 'EOF';
    return;
  }

  start = end;

  switch (code) {
    // "
    case 34:
      kind = 'String';
      return readString();
    // -, 0-9
    case 45:
    case 48:
    case 49:
    case 50:
    case 51:
    case 52:
    case 53:
    case 54:
    case 55:
    case 56:
    case 57:
      kind = 'Number';
      return readNumber();
    // f
    case 102:
      if (string.slice(start, start + 5) !== 'false') {
        break;
      }
      end += 4;
      ch();

      kind = 'Boolean';
      return;
    // n
    case 110:
      if (string.slice(start, start + 4) !== 'null') {
        break;
      }
      end += 3;
      ch();

      kind = 'Null';
      return;
    // t
    case 116:
      if (string.slice(start, start + 4) !== 'true') {
        break;
      }
      end += 3;
      ch();

      kind = 'Boolean';
      return;
  }

  kind = string[start];
  ch();
}

function readString() {
  ch();
  while (code !== 34 && code > 31) {
    if (code === 92) {
      // \
      ch();
      switch (code) {
        case 34: // "
        case 47: // /
        case 92: // \
        case 98: // b
        case 102: // f
        case 110: // n
        case 114: // r
        case 116:
          // t
          ch();
          break;
        case 117:
          // u
          ch();
          readHex();
          readHex();
          readHex();
          readHex();
          break;
        default:
          throw syntaxError('Bad character escape sequence.');
      }
    } else if (end === strLen) {
      throw syntaxError('Unterminated string.');
    } else {
      ch();
    }
  }

  if (code === 34) {
    ch();
    return;
  }

  throw syntaxError('Unterminated string.');
}

function readHex() {
  if (code >= 48 && code <= 57 || // 0-9
  code >= 65 && code <= 70 || // A-F
  code >= 97 && code <= 102 // a-f
  ) {
      return ch();
    }
  throw syntaxError('Expected hexadecimal digit.');
}

function readNumber() {
  if (code === 45) {
    // -
    ch();
  }

  if (code === 48) {
    // 0
    ch();
  } else {
    readDigits();
  }

  if (code === 46) {
    // .
    ch();
    readDigits();
  }

  if (code === 69 || code === 101) {
    // E e
    ch();
    if (code === 43 || code === 45) {
      // + -
      ch();
    }
    readDigits();
  }
}

function readDigits() {
  if (code < 48 || code > 57) {
    // 0 - 9
    throw syntaxError('Expected decimal digit.');
  }
  do {
    ch();
  } while (code >= 48 && code <= 57); // 0 - 9
}
},{}],48:[function(require,module,exports){
'use strict';

var _codemirror = require('codemirror');

var _codemirror2 = _interopRequireDefault(_codemirror);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

_codemirror2.default.defineOption('jump', false, function (cm, options, old) {
  if (old && old !== _codemirror2.default.Init) {
    var oldOnMouseOver = cm.state.jump.onMouseOver;
    _codemirror2.default.off(cm.getWrapperElement(), 'mouseover', oldOnMouseOver);
    var oldOnMouseOut = cm.state.jump.onMouseOut;
    _codemirror2.default.off(cm.getWrapperElement(), 'mouseout', oldOnMouseOut);
    _codemirror2.default.off(document, 'keydown', cm.state.jump.onKeyDown);
    delete cm.state.jump;
  }

  if (options) {
    var state = cm.state.jump = {
      options: options,
      onMouseOver: onMouseOver.bind(null, cm),
      onMouseOut: onMouseOut.bind(null, cm),
      onKeyDown: onKeyDown.bind(null, cm)
    };

    _codemirror2.default.on(cm.getWrapperElement(), 'mouseover', state.onMouseOver);
    _codemirror2.default.on(cm.getWrapperElement(), 'mouseout', state.onMouseOut);
    _codemirror2.default.on(document, 'keydown', state.onKeyDown);
  }
}); /**
     *  Copyright (c) 2017, Facebook, Inc.
     *  All rights reserved.
     *
     *  This source code is licensed under the BSD-style license found in the
     *  LICENSE file in the root directory of this source tree. An additional grant
     *  of patent rights can be found in the PATENTS file in the same directory.
     */

function onMouseOver(cm, event) {
  var target = event.target || event.srcElement;
  if (target.nodeName !== 'SPAN') {
    return;
  }

  var box = target.getBoundingClientRect();
  var cursor = {
    left: (box.left + box.right) / 2,
    top: (box.top + box.bottom) / 2
  };

  cm.state.jump.cursor = cursor;

  if (cm.state.jump.isHoldingModifier) {
    enableJumpMode(cm);
  }
}

function onMouseOut(cm) {
  if (!cm.state.jump.isHoldingModifier && cm.state.jump.cursor) {
    cm.state.jump.cursor = null;
    return;
  }

  if (cm.state.jump.isHoldingModifier && cm.state.jump.marker) {
    disableJumpMode(cm);
  }
}

function onKeyDown(cm, event) {
  if (cm.state.jump.isHoldingModifier || !isJumpModifier(event.key)) {
    return;
  }

  cm.state.jump.isHoldingModifier = true;

  if (cm.state.jump.cursor) {
    enableJumpMode(cm);
  }

  var onKeyUp = function onKeyUp(upEvent) {
    if (upEvent.code !== event.code) {
      return;
    }

    cm.state.jump.isHoldingModifier = false;

    if (cm.state.jump.marker) {
      disableJumpMode(cm);
    }

    _codemirror2.default.off(document, 'keyup', onKeyUp);
    _codemirror2.default.off(document, 'click', onClick);
    cm.off('mousedown', onMouseDown);
  };

  var onClick = function onClick(clickEvent) {
    var destination = cm.state.jump.destination;
    if (destination) {
      cm.state.jump.options.onClick(destination, clickEvent);
    }
  };

  var onMouseDown = function onMouseDown(_, downEvent) {
    if (cm.state.jump.destination) {
      downEvent.codemirrorIgnore = true;
    }
  };

  _codemirror2.default.on(document, 'keyup', onKeyUp);
  _codemirror2.default.on(document, 'click', onClick);
  cm.on('mousedown', onMouseDown);
}

var isMac = navigator && navigator.appVersion.indexOf('Mac') !== -1;

function isJumpModifier(key) {
  return key === (isMac ? 'Meta' : 'Control');
}

function enableJumpMode(cm) {
  if (cm.state.jump.marker) {
    return;
  }

  var cursor = cm.state.jump.cursor;
  var pos = cm.coordsChar(cursor);
  var token = cm.getTokenAt(pos, true);

  var options = cm.state.jump.options;
  var getDestination = options.getDestination || cm.getHelper(pos, 'jump');
  if (getDestination) {
    var destination = getDestination(token, options, cm);
    if (destination) {
      var marker = cm.markText({ line: pos.line, ch: token.start }, { line: pos.line, ch: token.end }, { className: 'CodeMirror-jump-token' });

      cm.state.jump.marker = marker;
      cm.state.jump.destination = destination;
    }
  }
}

function disableJumpMode(cm) {
  var marker = cm.state.jump.marker;
  cm.state.jump.marker = null;
  cm.state.jump.destination = null;

  marker.clear();
}
},{"codemirror":65}],49:[function(require,module,exports){
'use strict';

var _codemirror = require('codemirror');

var _codemirror2 = _interopRequireDefault(_codemirror);

var _graphql = require('graphql');

var _forEachState = require('../utils/forEachState');

var _forEachState2 = _interopRequireDefault(_forEachState);

var _hintList = require('../utils/hintList');

var _hintList2 = _interopRequireDefault(_hintList);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

/**
 * Registers a "hint" helper for CodeMirror.
 *
 * Using CodeMirror's "hint" addon: https://codemirror.net/demo/complete.html
 * Given an editor, this helper will take the token at the cursor and return a
 * list of suggested tokens.
 *
 * Options:
 *
 *   - variableToType: { [variable: string]: GraphQLInputType }
 *
 * Additional Events:
 *
 *   - hasCompletion (codemirror, data, token) - signaled when the hinter has a
 *     new list of completion suggestions.
 *
 */
/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

_codemirror2.default.registerHelper('hint', 'graphql-variables', function (editor, options) {
  var cur = editor.getCursor();
  var token = editor.getTokenAt(cur);

  var results = getVariablesHint(cur, token, options);
  if (results && results.list && results.list.length > 0) {
    results.from = _codemirror2.default.Pos(results.from.line, results.from.column);
    results.to = _codemirror2.default.Pos(results.to.line, results.to.column);
    _codemirror2.default.signal(editor, 'hasCompletion', editor, results, token);
  }

  return results;
});

function getVariablesHint(cur, token, options) {
  // If currently parsing an invalid state, attempt to hint to the prior state.
  var state = token.state.kind === 'Invalid' ? token.state.prevState : token.state;

  var kind = state.kind;
  var step = state.step;

  // Variables can only be an object literal.
  if (kind === 'Document' && step === 0) {
    return (0, _hintList2.default)(cur, token, [{ text: '{' }]);
  }

  var variableToType = options.variableToType;
  if (!variableToType) {
    return;
  }

  var typeInfo = getTypeInfo(variableToType, token.state);

  // Top level should typeahead possible variables.
  if (kind === 'Document' || kind === 'Variable' && step === 0) {
    var variableNames = Object.keys(variableToType);
    return (0, _hintList2.default)(cur, token, variableNames.map(function (name) {
      return {
        text: '"' + name + '": ',
        type: variableToType[name]
      };
    }));
  }

  // Input Object fields
  if (kind === 'ObjectValue' || kind === 'ObjectField' && step === 0) {
    if (typeInfo.fields) {
      var inputFields = Object.keys(typeInfo.fields).map(function (fieldName) {
        return typeInfo.fields[fieldName];
      });
      return (0, _hintList2.default)(cur, token, inputFields.map(function (field) {
        return {
          text: '"' + field.name + '": ',
          type: field.type,
          description: field.description
        };
      }));
    }
  }

  // Input values.
  if (kind === 'StringValue' || kind === 'NumberValue' || kind === 'BooleanValue' || kind === 'NullValue' || kind === 'ListValue' && step === 1 || kind === 'ObjectField' && step === 2 || kind === 'Variable' && step === 2) {
    var namedInputType = (0, _graphql.getNamedType)(typeInfo.type);
    if (namedInputType instanceof _graphql.GraphQLInputObjectType) {
      return (0, _hintList2.default)(cur, token, [{ text: '{' }]);
    } else if (namedInputType instanceof _graphql.GraphQLEnumType) {
      var valueMap = namedInputType.getValues();
      var values = Object.keys(valueMap).map(function (name) {
        return valueMap[name];
      });
      return (0, _hintList2.default)(cur, token, values.map(function (value) {
        return {
          text: '"' + value.name + '"',
          type: namedInputType,
          description: value.description
        };
      }));
    } else if (namedInputType === _graphql.GraphQLBoolean) {
      return (0, _hintList2.default)(cur, token, [{ text: 'true', type: _graphql.GraphQLBoolean, description: 'Not false.' }, { text: 'false', type: _graphql.GraphQLBoolean, description: 'Not true.' }]);
    }
  }
}

// Utility for collecting rich type information given any token's state
// from the graphql-variables-mode parser.
function getTypeInfo(variableToType, tokenState) {
  var info = {
    type: null,
    fields: null
  };

  (0, _forEachState2.default)(tokenState, function (state) {
    if (state.kind === 'Variable') {
      info.type = variableToType[state.name];
    } else if (state.kind === 'ListValue') {
      var nullableType = (0, _graphql.getNullableType)(info.type);
      info.type = nullableType instanceof _graphql.GraphQLList ? nullableType.ofType : null;
    } else if (state.kind === 'ObjectValue') {
      var objectType = (0, _graphql.getNamedType)(info.type);
      info.fields = objectType instanceof _graphql.GraphQLInputObjectType ? objectType.getFields() : null;
    } else if (state.kind === 'ObjectField') {
      var objectField = state.name && info.fields ? info.fields[state.name] : null;
      info.type = objectField && objectField.type;
    }
  });

  return info;
}
},{"../utils/forEachState":43,"../utils/hintList":45,"codemirror":65,"graphql":95}],50:[function(require,module,exports){
'use strict';

var _codemirror = require('codemirror');

var _codemirror2 = _interopRequireDefault(_codemirror);

var _graphql = require('graphql');

var _jsonParse = require('../utils/jsonParse');

var _jsonParse2 = _interopRequireDefault(_jsonParse);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

/**
 * Registers a "lint" helper for CodeMirror.
 *
 * Using CodeMirror's "lint" addon: https://codemirror.net/demo/lint.html
 * Given the text within an editor, this helper will take that text and return
 * a list of linter issues ensuring that correct variables were provided.
 *
 * Options:
 *
 *   - variableToType: { [variable: string]: GraphQLInputType }
 *
 */
_codemirror2.default.registerHelper('lint', 'graphql-variables', function (text, options, editor) {
  // If there's no text, do nothing.
  if (!text) {
    return [];
  }

  // First, linter needs to determine if there are any parsing errors.
  var ast = void 0;
  try {
    ast = (0, _jsonParse2.default)(text);
  } catch (syntaxError) {
    if (syntaxError.stack) {
      throw syntaxError;
    }
    return [lintError(editor, syntaxError, syntaxError.message)];
  }

  // If there are not yet known variables, do nothing.
  var variableToType = options.variableToType;
  if (!variableToType) {
    return [];
  }

  // Then highlight any issues with the provided variables.
  return validateVariables(editor, variableToType, ast);
});

// Given a variableToType object, a source text, and a JSON AST, produces a
// list of CodeMirror annotations for any variable validation errors.
/* eslint-disable max-len */
/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

function validateVariables(editor, variableToType, variablesAST) {
  var errors = [];

  variablesAST.members.forEach(function (member) {
    var variableName = member.key.value;
    var type = variableToType[variableName];
    if (!type) {
      errors.push(lintError(editor, member.key, 'Variable "$' + variableName + '" does not appear in any GraphQL query.'));
    } else {
      validateValue(type, member.value).forEach(function (_ref) {
        var node = _ref[0],
            message = _ref[1];

        errors.push(lintError(editor, node, message));
      });
    }
  });

  return errors;
}

// Returns a list of validation errors in the form Array<[Node, String]>.
function validateValue(type, valueAST) {
  // Validate non-nullable values.
  if (type instanceof _graphql.GraphQLNonNull) {
    if (valueAST.kind === 'Null') {
      return [[valueAST, 'Type "' + type + '" is non-nullable and cannot be null.']];
    }
    return validateValue(type.ofType, valueAST);
  }

  if (valueAST.kind === 'Null') {
    return [];
  }

  // Validate lists of values, accepting a non-list as a list of one.
  if (type instanceof _graphql.GraphQLList) {
    var itemType = type.ofType;
    if (valueAST.kind === 'Array') {
      return mapCat(valueAST.values, function (item) {
        return validateValue(itemType, item);
      });
    }
    return validateValue(itemType, valueAST);
  }

  // Validate input objects.
  if (type instanceof _graphql.GraphQLInputObjectType) {
    if (valueAST.kind !== 'Object') {
      return [[valueAST, 'Type "' + type + '" must be an Object.']];
    }

    // Validate each field in the input object.
    var providedFields = Object.create(null);
    var fieldErrors = mapCat(valueAST.members, function (member) {
      var fieldName = member.key.value;
      providedFields[fieldName] = true;
      var inputField = type.getFields()[fieldName];
      if (!inputField) {
        return [[member.key, 'Type "' + type + '" does not have a field "' + fieldName + '".']];
      }
      var fieldType = inputField ? inputField.type : undefined;
      return validateValue(fieldType, member.value);
    });

    // Look for missing non-nullable fields.
    Object.keys(type.getFields()).forEach(function (fieldName) {
      if (!providedFields[fieldName]) {
        var fieldType = type.getFields()[fieldName].type;
        if (fieldType instanceof _graphql.GraphQLNonNull) {
          fieldErrors.push([valueAST, 'Object of type "' + type + '" is missing required field "' + fieldName + '".']);
        }
      }
    });

    return fieldErrors;
  }

  // Validate common scalars.
  if (type.name === 'Boolean' && valueAST.kind !== 'Boolean' || type.name === 'String' && valueAST.kind !== 'String' || type.name === 'ID' && valueAST.kind !== 'Number' && valueAST.kind !== 'String' || type.name === 'Float' && valueAST.kind !== 'Number' || type.name === 'Int' && (valueAST.kind !== 'Number' || (valueAST.value | 0) !== valueAST.value)) {
    return [[valueAST, 'Expected value of type "' + type + '".']];
  }

  // Validate enums and custom scalars.
  if (type instanceof _graphql.GraphQLEnumType || type instanceof _graphql.GraphQLScalarType) {
    if (valueAST.kind !== 'String' && valueAST.kind !== 'Number' && valueAST.kind !== 'Boolean' && valueAST.kind !== 'Null' || isNullish(type.parseValue(valueAST.value))) {
      return [[valueAST, 'Expected value of type "' + type + '".']];
    }
  }

  return [];
}

// Give a parent text, an AST node with location, and a message, produces a
// CodeMirror annotation object.
function lintError(editor, node, message) {
  return {
    message: message,
    severity: 'error',
    type: 'validation',
    from: editor.posFromIndex(node.start),
    to: editor.posFromIndex(node.end)
  };
}

function isNullish(value) {
  return value === null || value === undefined || value !== value;
}

function mapCat(array, mapper) {
  return Array.prototype.concat.apply([], array.map(mapper));
}
},{"../utils/jsonParse":47,"codemirror":65,"graphql":95}],51:[function(require,module,exports){
'use strict';

var _codemirror = require('codemirror');

var _codemirror2 = _interopRequireDefault(_codemirror);

var _graphqlLanguageServiceParser = require('graphql-language-service-parser');

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

/**
 * This mode defines JSON, but provides a data-laden parser state to enable
 * better code intelligence.
 */
/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

_codemirror2.default.defineMode('graphql-variables', function (config) {
  var parser = (0, _graphqlLanguageServiceParser.onlineParser)({
    eatWhitespace: function eatWhitespace(stream) {
      return stream.eatSpace();
    },
    lexRules: LexRules,
    parseRules: ParseRules,
    editorConfig: { tabSize: config.tabSize }
  });

  return {
    config: config,
    startState: parser.startState,
    token: parser.token,
    indent: indent,
    electricInput: /^\s*[}\]]/,
    fold: 'brace',
    closeBrackets: {
      pairs: '[]{}""',
      explode: '[]{}'
    }
  };
});

function indent(state, textAfter) {
  var levels = state.levels;
  // If there is no stack of levels, use the current level.
  // Otherwise, use the top level, pre-emptively dedenting for close braces.
  var level = !levels || levels.length === 0 ? state.indentLevel : levels[levels.length - 1] - (this.electricInput.test(textAfter) ? 1 : 0);
  return level * this.config.indentUnit;
}

/**
 * The lexer rules. These are exactly as described by the spec.
 */
var LexRules = {
  // All Punctuation used in JSON.
  Punctuation: /^\[|]|\{|\}|:|,/,

  // JSON Number.
  Number: /^-?(?:0|(?:[1-9][0-9]*))(?:\.[0-9]*)?(?:[eE][+-]?[0-9]+)?/,

  // JSON String.
  String: /^"(?:[^"\\]|\\(?:"|\/|\\|b|f|n|r|t|u[0-9a-fA-F]{4}))*"?/,

  // JSON literal keywords.
  Keyword: /^true|false|null/
};

/**
 * The parser rules for JSON.
 */
var ParseRules = {
  Document: [(0, _graphqlLanguageServiceParser.p)('{'), (0, _graphqlLanguageServiceParser.list)('Variable', (0, _graphqlLanguageServiceParser.opt)((0, _graphqlLanguageServiceParser.p)(','))), (0, _graphqlLanguageServiceParser.p)('}')],
  Variable: [namedKey('variable'), (0, _graphqlLanguageServiceParser.p)(':'), 'Value'],
  Value: function Value(token) {
    switch (token.kind) {
      case 'Number':
        return 'NumberValue';
      case 'String':
        return 'StringValue';
      case 'Punctuation':
        switch (token.value) {
          case '[':
            return 'ListValue';
          case '{':
            return 'ObjectValue';
        }
        return null;
      case 'Keyword':
        switch (token.value) {
          case 'true':
          case 'false':
            return 'BooleanValue';
          case 'null':
            return 'NullValue';
        }
        return null;
    }
  },

  NumberValue: [(0, _graphqlLanguageServiceParser.t)('Number', 'number')],
  StringValue: [(0, _graphqlLanguageServiceParser.t)('String', 'string')],
  BooleanValue: [(0, _graphqlLanguageServiceParser.t)('Keyword', 'builtin')],
  NullValue: [(0, _graphqlLanguageServiceParser.t)('Keyword', 'keyword')],
  ListValue: [(0, _graphqlLanguageServiceParser.p)('['), (0, _graphqlLanguageServiceParser.list)('Value', (0, _graphqlLanguageServiceParser.opt)((0, _graphqlLanguageServiceParser.p)(','))), (0, _graphqlLanguageServiceParser.p)(']')],
  ObjectValue: [(0, _graphqlLanguageServiceParser.p)('{'), (0, _graphqlLanguageServiceParser.list)('ObjectField', (0, _graphqlLanguageServiceParser.opt)((0, _graphqlLanguageServiceParser.p)(','))), (0, _graphqlLanguageServiceParser.p)('}')],
  ObjectField: [namedKey('attribute'), (0, _graphqlLanguageServiceParser.p)(':'), 'Value']
};

// A namedKey Token which will decorate the state with a `name`
function namedKey(style) {
  return {
    style: style,
    match: function match(token) {
      return token.kind === 'String';
    },
    update: function update(state, token) {
      state.name = token.value.slice(1, -1); // Remove quotes.
    }
  };
}
},{"codemirror":65,"graphql-language-service-parser":80}],52:[function(require,module,exports){
// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: http://codemirror.net/LICENSE

(function(mod) {
  if (typeof exports == "object" && typeof module == "object") // CommonJS
    mod(require("../../lib/codemirror"));
  else if (typeof define == "function" && define.amd) // AMD
    define(["../../lib/codemirror"], mod);
  else // Plain browser env
    mod(CodeMirror);
})(function(CodeMirror) {
  "use strict";

  var noOptions = {};
  var nonWS = /[^\s\u00a0]/;
  var Pos = CodeMirror.Pos;

  function firstNonWS(str) {
    var found = str.search(nonWS);
    return found == -1 ? 0 : found;
  }

  CodeMirror.commands.toggleComment = function(cm) {
    cm.toggleComment();
  };

  CodeMirror.defineExtension("toggleComment", function(options) {
    if (!options) options = noOptions;
    var cm = this;
    var minLine = Infinity, ranges = this.listSelections(), mode = null;
    for (var i = ranges.length - 1; i >= 0; i--) {
      var from = ranges[i].from(), to = ranges[i].to();
      if (from.line >= minLine) continue;
      if (to.line >= minLine) to = Pos(minLine, 0);
      minLine = from.line;
      if (mode == null) {
        if (cm.uncomment(from, to, options)) mode = "un";
        else { cm.lineComment(from, to, options); mode = "line"; }
      } else if (mode == "un") {
        cm.uncomment(from, to, options);
      } else {
        cm.lineComment(from, to, options);
      }
    }
  });

  // Rough heuristic to try and detect lines that are part of multi-line string
  function probablyInsideString(cm, pos, line) {
    return /\bstring\b/.test(cm.getTokenTypeAt(Pos(pos.line, 0))) && !/^[\'\"\`]/.test(line)
  }

  function getMode(cm, pos) {
    var mode = cm.getMode()
    return mode.useInnerComments === false || !mode.innerMode ? mode : cm.getModeAt(pos)
  }

  CodeMirror.defineExtension("lineComment", function(from, to, options) {
    if (!options) options = noOptions;
    var self = this, mode = getMode(self, from);
    var firstLine = self.getLine(from.line);
    if (firstLine == null || probablyInsideString(self, from, firstLine)) return;

    var commentString = options.lineComment || mode.lineComment;
    if (!commentString) {
      if (options.blockCommentStart || mode.blockCommentStart) {
        options.fullLines = true;
        self.blockComment(from, to, options);
      }
      return;
    }

    var end = Math.min(to.ch != 0 || to.line == from.line ? to.line + 1 : to.line, self.lastLine() + 1);
    var pad = options.padding == null ? " " : options.padding;
    var blankLines = options.commentBlankLines || from.line == to.line;

    self.operation(function() {
      if (options.indent) {
        var baseString = null;
        for (var i = from.line; i < end; ++i) {
          var line = self.getLine(i);
          var whitespace = line.slice(0, firstNonWS(line));
          if (baseString == null || baseString.length > whitespace.length) {
            baseString = whitespace;
          }
        }
        for (var i = from.line; i < end; ++i) {
          var line = self.getLine(i), cut = baseString.length;
          if (!blankLines && !nonWS.test(line)) continue;
          if (line.slice(0, cut) != baseString) cut = firstNonWS(line);
          self.replaceRange(baseString + commentString + pad, Pos(i, 0), Pos(i, cut));
        }
      } else {
        for (var i = from.line; i < end; ++i) {
          if (blankLines || nonWS.test(self.getLine(i)))
            self.replaceRange(commentString + pad, Pos(i, 0));
        }
      }
    });
  });

  CodeMirror.defineExtension("blockComment", function(from, to, options) {
    if (!options) options = noOptions;
    var self = this, mode = getMode(self, from);
    var startString = options.blockCommentStart || mode.blockCommentStart;
    var endString = options.blockCommentEnd || mode.blockCommentEnd;
    if (!startString || !endString) {
      if ((options.lineComment || mode.lineComment) && options.fullLines != false)
        self.lineComment(from, to, options);
      return;
    }
    if (/\bcomment\b/.test(self.getTokenTypeAt(Pos(from.line, 0)))) return

    var end = Math.min(to.line, self.lastLine());
    if (end != from.line && to.ch == 0 && nonWS.test(self.getLine(end))) --end;

    var pad = options.padding == null ? " " : options.padding;
    if (from.line > end) return;

    self.operation(function() {
      if (options.fullLines != false) {
        var lastLineHasText = nonWS.test(self.getLine(end));
        self.replaceRange(pad + endString, Pos(end));
        self.replaceRange(startString + pad, Pos(from.line, 0));
        var lead = options.blockCommentLead || mode.blockCommentLead;
        if (lead != null) for (var i = from.line + 1; i <= end; ++i)
          if (i != end || lastLineHasText)
            self.replaceRange(lead + pad, Pos(i, 0));
      } else {
        self.replaceRange(endString, to);
        self.replaceRange(startString, from);
      }
    });
  });

  CodeMirror.defineExtension("uncomment", function(from, to, options) {
    if (!options) options = noOptions;
    var self = this, mode = getMode(self, from);
    var end = Math.min(to.ch != 0 || to.line == from.line ? to.line : to.line - 1, self.lastLine()), start = Math.min(from.line, end);

    // Try finding line comments
    var lineString = options.lineComment || mode.lineComment, lines = [];
    var pad = options.padding == null ? " " : options.padding, didSomething;
    lineComment: {
      if (!lineString) break lineComment;
      for (var i = start; i <= end; ++i) {
        var line = self.getLine(i);
        var found = line.indexOf(lineString);
        if (found > -1 && !/comment/.test(self.getTokenTypeAt(Pos(i, found + 1)))) found = -1;
        if (found == -1 && nonWS.test(line)) break lineComment;
        if (found > -1 && nonWS.test(line.slice(0, found))) break lineComment;
        lines.push(line);
      }
      self.operation(function() {
        for (var i = start; i <= end; ++i) {
          var line = lines[i - start];
          var pos = line.indexOf(lineString), endPos = pos + lineString.length;
          if (pos < 0) continue;
          if (line.slice(endPos, endPos + pad.length) == pad) endPos += pad.length;
          didSomething = true;
          self.replaceRange("", Pos(i, pos), Pos(i, endPos));
        }
      });
      if (didSomething) return true;
    }

    // Try block comments
    var startString = options.blockCommentStart || mode.blockCommentStart;
    var endString = options.blockCommentEnd || mode.blockCommentEnd;
    if (!startString || !endString) return false;
    var lead = options.blockCommentLead || mode.blockCommentLead;
    var startLine = self.getLine(start), open = startLine.indexOf(startString)
    if (open == -1) return false
    var endLine = end == start ? startLine : self.getLine(end)
    var close = endLine.indexOf(endString, end == start ? open + startString.length : 0);
    if (close == -1 && start != end) {
      endLine = self.getLine(--end);
      close = endLine.indexOf(endString);
    }
    var insideStart = Pos(start, open + 1), insideEnd = Pos(end, close + 1)
    if (close == -1 ||
        !/comment/.test(self.getTokenTypeAt(insideStart)) ||
        !/comment/.test(self.getTokenTypeAt(insideEnd)) ||
        self.getRange(insideStart, insideEnd, "\n").indexOf(endString) > -1)
      return false;

    // Avoid killing block comments completely outside the selection.
    // Positions of the last startString before the start of the selection, and the first endString after it.
    var lastStart = startLine.lastIndexOf(startString, from.ch);
    var firstEnd = lastStart == -1 ? -1 : startLine.slice(0, from.ch).indexOf(endString, lastStart + startString.length);
    if (lastStart != -1 && firstEnd != -1 && firstEnd + endString.length != from.ch) return false;
    // Positions of the first endString after the end of the selection, and the last startString before it.
    firstEnd = endLine.indexOf(endString, to.ch);
    var almostLastStart = endLine.slice(to.ch).lastIndexOf(startString, firstEnd - to.ch);
    lastStart = (firstEnd == -1 || almostLastStart == -1) ? -1 : to.ch + almostLastStart;
    if (firstEnd != -1 && lastStart != -1 && lastStart != to.ch) return false;

    self.operation(function() {
      self.replaceRange("", Pos(end, close - (pad && endLine.slice(close - pad.length, close) == pad ? pad.length : 0)),
                        Pos(end, close + endString.length));
      var openEnd = open + startString.length;
      if (pad && startLine.slice(openEnd, openEnd + pad.length) == pad) openEnd += pad.length;
      self.replaceRange("", Pos(start, open), Pos(start, openEnd));
      if (lead) for (var i = start + 1; i <= end; ++i) {
        var line = self.getLine(i), found = line.indexOf(lead);
        if (found == -1 || nonWS.test(line.slice(0, found))) continue;
        var foundEnd = found + lead.length;
        if (pad && line.slice(foundEnd, foundEnd + pad.length) == pad) foundEnd += pad.length;
        self.replaceRange("", Pos(i, found), Pos(i, foundEnd));
      }
    });
    return true;
  });
});

},{"../../lib/codemirror":65}],53:[function(require,module,exports){
// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: http://codemirror.net/LICENSE

// Open simple dialogs on top of an editor. Relies on dialog.css.

(function(mod) {
  if (typeof exports == "object" && typeof module == "object") // CommonJS
    mod(require("../../lib/codemirror"));
  else if (typeof define == "function" && define.amd) // AMD
    define(["../../lib/codemirror"], mod);
  else // Plain browser env
    mod(CodeMirror);
})(function(CodeMirror) {
  function dialogDiv(cm, template, bottom) {
    var wrap = cm.getWrapperElement();
    var dialog;
    dialog = wrap.appendChild(document.createElement("div"));
    if (bottom)
      dialog.className = "CodeMirror-dialog CodeMirror-dialog-bottom";
    else
      dialog.className = "CodeMirror-dialog CodeMirror-dialog-top";

    if (typeof template == "string") {
      dialog.innerHTML = template;
    } else { // Assuming it's a detached DOM element.
      dialog.appendChild(template);
    }
    return dialog;
  }

  function closeNotification(cm, newVal) {
    if (cm.state.currentNotificationClose)
      cm.state.currentNotificationClose();
    cm.state.currentNotificationClose = newVal;
  }

  CodeMirror.defineExtension("openDialog", function(template, callback, options) {
    if (!options) options = {};

    closeNotification(this, null);

    var dialog = dialogDiv(this, template, options.bottom);
    var closed = false, me = this;
    function close(newVal) {
      if (typeof newVal == 'string') {
        inp.value = newVal;
      } else {
        if (closed) return;
        closed = true;
        dialog.parentNode.removeChild(dialog);
        me.focus();

        if (options.onClose) options.onClose(dialog);
      }
    }

    var inp = dialog.getElementsByTagName("input")[0], button;
    if (inp) {
      inp.focus();

      if (options.value) {
        inp.value = options.value;
        if (options.selectValueOnOpen !== false) {
          inp.select();
        }
      }

      if (options.onInput)
        CodeMirror.on(inp, "input", function(e) { options.onInput(e, inp.value, close);});
      if (options.onKeyUp)
        CodeMirror.on(inp, "keyup", function(e) {options.onKeyUp(e, inp.value, close);});

      CodeMirror.on(inp, "keydown", function(e) {
        if (options && options.onKeyDown && options.onKeyDown(e, inp.value, close)) { return; }
        if (e.keyCode == 27 || (options.closeOnEnter !== false && e.keyCode == 13)) {
          inp.blur();
          CodeMirror.e_stop(e);
          close();
        }
        if (e.keyCode == 13) callback(inp.value, e);
      });

      if (options.closeOnBlur !== false) CodeMirror.on(inp, "blur", close);
    } else if (button = dialog.getElementsByTagName("button")[0]) {
      CodeMirror.on(button, "click", function() {
        close();
        me.focus();
      });

      if (options.closeOnBlur !== false) CodeMirror.on(button, "blur", close);

      button.focus();
    }
    return close;
  });

  CodeMirror.defineExtension("openConfirm", function(template, callbacks, options) {
    closeNotification(this, null);
    var dialog = dialogDiv(this, template, options && options.bottom);
    var buttons = dialog.getElementsByTagName("button");
    var closed = false, me = this, blurring = 1;
    function close() {
      if (closed) return;
      closed = true;
      dialog.parentNode.removeChild(dialog);
      me.focus();
    }
    buttons[0].focus();
    for (var i = 0; i < buttons.length; ++i) {
      var b = buttons[i];
      (function(callback) {
        CodeMirror.on(b, "click", function(e) {
          CodeMirror.e_preventDefault(e);
          close();
          if (callback) callback(me);
        });
      })(callbacks[i]);
      CodeMirror.on(b, "blur", function() {
        --blurring;
        setTimeout(function() { if (blurring <= 0) close(); }, 200);
      });
      CodeMirror.on(b, "focus", function() { ++blurring; });
    }
  });

  /*
   * openNotification
   * Opens a notification, that can be closed with an optional timer
   * (default 5000ms timer) and always closes on click.
   *
   * If a notification is opened while another is opened, it will close the
   * currently opened one and open the new one immediately.
   */
  CodeMirror.defineExtension("openNotification", function(template, options) {
    closeNotification(this, close);
    var dialog = dialogDiv(this, template, options && options.bottom);
    var closed = false, doneTimer;
    var duration = options && typeof options.duration !== "undefined" ? options.duration : 5000;

    function close() {
      if (closed) return;
      closed = true;
      clearTimeout(doneTimer);
      dialog.parentNode.removeChild(dialog);
    }

    CodeMirror.on(dialog, 'click', function(e) {
      CodeMirror.e_preventDefault(e);
      close();
    });

    if (duration)
      doneTimer = setTimeout(close, duration);

    return close;
  });
});

},{"../../lib/codemirror":65}],54:[function(require,module,exports){
// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: http://codemirror.net/LICENSE

(function(mod) {
  if (typeof exports == "object" && typeof module == "object") // CommonJS
    mod(require("../../lib/codemirror"));
  else if (typeof define == "function" && define.amd) // AMD
    define(["../../lib/codemirror"], mod);
  else // Plain browser env
    mod(CodeMirror);
})(function(CodeMirror) {
  var defaults = {
    pairs: "()[]{}''\"\"",
    triples: "",
    explode: "[]{}"
  };

  var Pos = CodeMirror.Pos;

  CodeMirror.defineOption("autoCloseBrackets", false, function(cm, val, old) {
    if (old && old != CodeMirror.Init) {
      cm.removeKeyMap(keyMap);
      cm.state.closeBrackets = null;
    }
    if (val) {
      cm.state.closeBrackets = val;
      cm.addKeyMap(keyMap);
    }
  });

  function getOption(conf, name) {
    if (name == "pairs" && typeof conf == "string") return conf;
    if (typeof conf == "object" && conf[name] != null) return conf[name];
    return defaults[name];
  }

  var bind = defaults.pairs + "`";
  var keyMap = {Backspace: handleBackspace, Enter: handleEnter};
  for (var i = 0; i < bind.length; i++)
    keyMap["'" + bind.charAt(i) + "'"] = handler(bind.charAt(i));

  function handler(ch) {
    return function(cm) { return handleChar(cm, ch); };
  }

  function getConfig(cm) {
    var deflt = cm.state.closeBrackets;
    if (!deflt || deflt.override) return deflt;
    var mode = cm.getModeAt(cm.getCursor());
    return mode.closeBrackets || deflt;
  }

  function handleBackspace(cm) {
    var conf = getConfig(cm);
    if (!conf || cm.getOption("disableInput")) return CodeMirror.Pass;

    var pairs = getOption(conf, "pairs");
    var ranges = cm.listSelections();
    for (var i = 0; i < ranges.length; i++) {
      if (!ranges[i].empty()) return CodeMirror.Pass;
      var around = charsAround(cm, ranges[i].head);
      if (!around || pairs.indexOf(around) % 2 != 0) return CodeMirror.Pass;
    }
    for (var i = ranges.length - 1; i >= 0; i--) {
      var cur = ranges[i].head;
      cm.replaceRange("", Pos(cur.line, cur.ch - 1), Pos(cur.line, cur.ch + 1), "+delete");
    }
  }

  function handleEnter(cm) {
    var conf = getConfig(cm);
    var explode = conf && getOption(conf, "explode");
    if (!explode || cm.getOption("disableInput")) return CodeMirror.Pass;

    var ranges = cm.listSelections();
    for (var i = 0; i < ranges.length; i++) {
      if (!ranges[i].empty()) return CodeMirror.Pass;
      var around = charsAround(cm, ranges[i].head);
      if (!around || explode.indexOf(around) % 2 != 0) return CodeMirror.Pass;
    }
    cm.operation(function() {
      cm.replaceSelection("\n\n", null);
      cm.execCommand("goCharLeft");
      ranges = cm.listSelections();
      for (var i = 0; i < ranges.length; i++) {
        var line = ranges[i].head.line;
        cm.indentLine(line, null, true);
        cm.indentLine(line + 1, null, true);
      }
    });
  }

  function contractSelection(sel) {
    var inverted = CodeMirror.cmpPos(sel.anchor, sel.head) > 0;
    return {anchor: new Pos(sel.anchor.line, sel.anchor.ch + (inverted ? -1 : 1)),
            head: new Pos(sel.head.line, sel.head.ch + (inverted ? 1 : -1))};
  }

  function handleChar(cm, ch) {
    var conf = getConfig(cm);
    if (!conf || cm.getOption("disableInput")) return CodeMirror.Pass;

    var pairs = getOption(conf, "pairs");
    var pos = pairs.indexOf(ch);
    if (pos == -1) return CodeMirror.Pass;
    var triples = getOption(conf, "triples");

    var identical = pairs.charAt(pos + 1) == ch;
    var ranges = cm.listSelections();
    var opening = pos % 2 == 0;

    var type;
    for (var i = 0; i < ranges.length; i++) {
      var range = ranges[i], cur = range.head, curType;
      var next = cm.getRange(cur, Pos(cur.line, cur.ch + 1));
      if (opening && !range.empty()) {
        curType = "surround";
      } else if ((identical || !opening) && next == ch) {
        if (identical && stringStartsAfter(cm, cur))
          curType = "both";
        else if (triples.indexOf(ch) >= 0 && cm.getRange(cur, Pos(cur.line, cur.ch + 3)) == ch + ch + ch)
          curType = "skipThree";
        else
          curType = "skip";
      } else if (identical && cur.ch > 1 && triples.indexOf(ch) >= 0 &&
                 cm.getRange(Pos(cur.line, cur.ch - 2), cur) == ch + ch &&
                 (cur.ch <= 2 || cm.getRange(Pos(cur.line, cur.ch - 3), Pos(cur.line, cur.ch - 2)) != ch)) {
        curType = "addFour";
      } else if (identical) {
        if (!CodeMirror.isWordChar(next) && enteringString(cm, cur, ch)) curType = "both";
        else return CodeMirror.Pass;
      } else if (opening && (cm.getLine(cur.line).length == cur.ch ||
                             isClosingBracket(next, pairs) ||
                             /\s/.test(next))) {
        curType = "both";
      } else {
        return CodeMirror.Pass;
      }
      if (!type) type = curType;
      else if (type != curType) return CodeMirror.Pass;
    }

    var left = pos % 2 ? pairs.charAt(pos - 1) : ch;
    var right = pos % 2 ? ch : pairs.charAt(pos + 1);
    cm.operation(function() {
      if (type == "skip") {
        cm.execCommand("goCharRight");
      } else if (type == "skipThree") {
        for (var i = 0; i < 3; i++)
          cm.execCommand("goCharRight");
      } else if (type == "surround") {
        var sels = cm.getSelections();
        for (var i = 0; i < sels.length; i++)
          sels[i] = left + sels[i] + right;
        cm.replaceSelections(sels, "around");
        sels = cm.listSelections().slice();
        for (var i = 0; i < sels.length; i++)
          sels[i] = contractSelection(sels[i]);
        cm.setSelections(sels);
      } else if (type == "both") {
        cm.replaceSelection(left + right, null);
        cm.triggerElectric(left + right);
        cm.execCommand("goCharLeft");
      } else if (type == "addFour") {
        cm.replaceSelection(left + left + left + left, "before");
        cm.execCommand("goCharRight");
      }
    });
  }

  function isClosingBracket(ch, pairs) {
    var pos = pairs.lastIndexOf(ch);
    return pos > -1 && pos % 2 == 1;
  }

  function charsAround(cm, pos) {
    var str = cm.getRange(Pos(pos.line, pos.ch - 1),
                          Pos(pos.line, pos.ch + 1));
    return str.length == 2 ? str : null;
  }

  // Project the token type that will exists after the given char is
  // typed, and use it to determine whether it would cause the start
  // of a string token.
  function enteringString(cm, pos, ch) {
    var line = cm.getLine(pos.line);
    var token = cm.getTokenAt(pos);
    if (/\bstring2?\b/.test(token.type) || stringStartsAfter(cm, pos)) return false;
    var stream = new CodeMirror.StringStream(line.slice(0, pos.ch) + ch + line.slice(pos.ch), 4);
    stream.pos = stream.start = token.start;
    for (;;) {
      var type1 = cm.getMode().token(stream, token.state);
      if (stream.pos >= pos.ch + 1) return /\bstring2?\b/.test(type1);
      stream.start = stream.pos;
    }
  }

  function stringStartsAfter(cm, pos) {
    var token = cm.getTokenAt(Pos(pos.line, pos.ch + 1))
    return /\bstring/.test(token.type) && token.start == pos.ch
  }
});

},{"../../lib/codemirror":65}],55:[function(require,module,exports){
// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: http://codemirror.net/LICENSE

(function(mod) {
  if (typeof exports == "object" && typeof module == "object") // CommonJS
    mod(require("../../lib/codemirror"));
  else if (typeof define == "function" && define.amd) // AMD
    define(["../../lib/codemirror"], mod);
  else // Plain browser env
    mod(CodeMirror);
})(function(CodeMirror) {
  var ie_lt8 = /MSIE \d/.test(navigator.userAgent) &&
    (document.documentMode == null || document.documentMode < 8);

  var Pos = CodeMirror.Pos;

  var matching = {"(": ")>", ")": "(<", "[": "]>", "]": "[<", "{": "}>", "}": "{<"};

  function findMatchingBracket(cm, where, config) {
    var line = cm.getLineHandle(where.line), pos = where.ch - 1;
    var afterCursor = config && config.afterCursor
    if (afterCursor == null)
      afterCursor = /(^| )cm-fat-cursor($| )/.test(cm.getWrapperElement().className)

    // A cursor is defined as between two characters, but in in vim command mode
    // (i.e. not insert mode), the cursor is visually represented as a
    // highlighted box on top of the 2nd character. Otherwise, we allow matches
    // from before or after the cursor.
    var match = (!afterCursor && pos >= 0 && matching[line.text.charAt(pos)]) ||
        matching[line.text.charAt(++pos)];
    if (!match) return null;
    var dir = match.charAt(1) == ">" ? 1 : -1;
    if (config && config.strict && (dir > 0) != (pos == where.ch)) return null;
    var style = cm.getTokenTypeAt(Pos(where.line, pos + 1));

    var found = scanForBracket(cm, Pos(where.line, pos + (dir > 0 ? 1 : 0)), dir, style || null, config);
    if (found == null) return null;
    return {from: Pos(where.line, pos), to: found && found.pos,
            match: found && found.ch == match.charAt(0), forward: dir > 0};
  }

  // bracketRegex is used to specify which type of bracket to scan
  // should be a regexp, e.g. /[[\]]/
  //
  // Note: If "where" is on an open bracket, then this bracket is ignored.
  //
  // Returns false when no bracket was found, null when it reached
  // maxScanLines and gave up
  function scanForBracket(cm, where, dir, style, config) {
    var maxScanLen = (config && config.maxScanLineLength) || 10000;
    var maxScanLines = (config && config.maxScanLines) || 1000;

    var stack = [];
    var re = config && config.bracketRegex ? config.bracketRegex : /[(){}[\]]/;
    var lineEnd = dir > 0 ? Math.min(where.line + maxScanLines, cm.lastLine() + 1)
                          : Math.max(cm.firstLine() - 1, where.line - maxScanLines);
    for (var lineNo = where.line; lineNo != lineEnd; lineNo += dir) {
      var line = cm.getLine(lineNo);
      if (!line) continue;
      var pos = dir > 0 ? 0 : line.length - 1, end = dir > 0 ? line.length : -1;
      if (line.length > maxScanLen) continue;
      if (lineNo == where.line) pos = where.ch - (dir < 0 ? 1 : 0);
      for (; pos != end; pos += dir) {
        var ch = line.charAt(pos);
        if (re.test(ch) && (style === undefined || cm.getTokenTypeAt(Pos(lineNo, pos + 1)) == style)) {
          var match = matching[ch];
          if ((match.charAt(1) == ">") == (dir > 0)) stack.push(ch);
          else if (!stack.length) return {pos: Pos(lineNo, pos), ch: ch};
          else stack.pop();
        }
      }
    }
    return lineNo - dir == (dir > 0 ? cm.lastLine() : cm.firstLine()) ? false : null;
  }

  function matchBrackets(cm, autoclear, config) {
    // Disable brace matching in long lines, since it'll cause hugely slow updates
    var maxHighlightLen = cm.state.matchBrackets.maxHighlightLineLength || 1000;
    var marks = [], ranges = cm.listSelections();
    for (var i = 0; i < ranges.length; i++) {
      var match = ranges[i].empty() && findMatchingBracket(cm, ranges[i].head, config);
      if (match && cm.getLine(match.from.line).length <= maxHighlightLen) {
        var style = match.match ? "CodeMirror-matchingbracket" : "CodeMirror-nonmatchingbracket";
        marks.push(cm.markText(match.from, Pos(match.from.line, match.from.ch + 1), {className: style}));
        if (match.to && cm.getLine(match.to.line).length <= maxHighlightLen)
          marks.push(cm.markText(match.to, Pos(match.to.line, match.to.ch + 1), {className: style}));
      }
    }

    if (marks.length) {
      // Kludge to work around the IE bug from issue #1193, where text
      // input stops going to the textare whever this fires.
      if (ie_lt8 && cm.state.focused) cm.focus();

      var clear = function() {
        cm.operation(function() {
          for (var i = 0; i < marks.length; i++) marks[i].clear();
        });
      };
      if (autoclear) setTimeout(clear, 800);
      else return clear;
    }
  }

  var currentlyHighlighted = null;
  function doMatchBrackets(cm) {
    cm.operation(function() {
      if (currentlyHighlighted) {currentlyHighlighted(); currentlyHighlighted = null;}
      currentlyHighlighted = matchBrackets(cm, false, cm.state.matchBrackets);
    });
  }

  CodeMirror.defineOption("matchBrackets", false, function(cm, val, old) {
    if (old && old != CodeMirror.Init) {
      cm.off("cursorActivity", doMatchBrackets);
      if (currentlyHighlighted) {currentlyHighlighted(); currentlyHighlighted = null;}
    }
    if (val) {
      cm.state.matchBrackets = typeof val == "object" ? val : {};
      cm.on("cursorActivity", doMatchBrackets);
    }
  });

  CodeMirror.defineExtension("matchBrackets", function() {matchBrackets(this, true);});
  CodeMirror.defineExtension("findMatchingBracket", function(pos, config, oldConfig){
    // Backwards-compatibility kludge
    if (oldConfig || typeof config == "boolean") {
      if (!oldConfig) {
        config = config ? {strict: true} : null
      } else {
        oldConfig.strict = config
        config = oldConfig
      }
    }
    return findMatchingBracket(this, pos, config)
  });
  CodeMirror.defineExtension("scanForBracket", function(pos, dir, style, config){
    return scanForBracket(this, pos, dir, style, config);
  });
});

},{"../../lib/codemirror":65}],56:[function(require,module,exports){
// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: http://codemirror.net/LICENSE

(function(mod) {
  if (typeof exports == "object" && typeof module == "object") // CommonJS
    mod(require("../../lib/codemirror"));
  else if (typeof define == "function" && define.amd) // AMD
    define(["../../lib/codemirror"], mod);
  else // Plain browser env
    mod(CodeMirror);
})(function(CodeMirror) {
"use strict";

CodeMirror.registerHelper("fold", "brace", function(cm, start) {
  var line = start.line, lineText = cm.getLine(line);
  var tokenType;

  function findOpening(openCh) {
    for (var at = start.ch, pass = 0;;) {
      var found = at <= 0 ? -1 : lineText.lastIndexOf(openCh, at - 1);
      if (found == -1) {
        if (pass == 1) break;
        pass = 1;
        at = lineText.length;
        continue;
      }
      if (pass == 1 && found < start.ch) break;
      tokenType = cm.getTokenTypeAt(CodeMirror.Pos(line, found + 1));
      if (!/^(comment|string)/.test(tokenType)) return found + 1;
      at = found - 1;
    }
  }

  var startToken = "{", endToken = "}", startCh = findOpening("{");
  if (startCh == null) {
    startToken = "[", endToken = "]";
    startCh = findOpening("[");
  }

  if (startCh == null) return;
  var count = 1, lastLine = cm.lastLine(), end, endCh;
  outer: for (var i = line; i <= lastLine; ++i) {
    var text = cm.getLine(i), pos = i == line ? startCh : 0;
    for (;;) {
      var nextOpen = text.indexOf(startToken, pos), nextClose = text.indexOf(endToken, pos);
      if (nextOpen < 0) nextOpen = text.length;
      if (nextClose < 0) nextClose = text.length;
      pos = Math.min(nextOpen, nextClose);
      if (pos == text.length) break;
      if (cm.getTokenTypeAt(CodeMirror.Pos(i, pos + 1)) == tokenType) {
        if (pos == nextOpen) ++count;
        else if (!--count) { end = i; endCh = pos; break outer; }
      }
      ++pos;
    }
  }
  if (end == null || line == end && endCh == startCh) return;
  return {from: CodeMirror.Pos(line, startCh),
          to: CodeMirror.Pos(end, endCh)};
});

CodeMirror.registerHelper("fold", "import", function(cm, start) {
  function hasImport(line) {
    if (line < cm.firstLine() || line > cm.lastLine()) return null;
    var start = cm.getTokenAt(CodeMirror.Pos(line, 1));
    if (!/\S/.test(start.string)) start = cm.getTokenAt(CodeMirror.Pos(line, start.end + 1));
    if (start.type != "keyword" || start.string != "import") return null;
    // Now find closing semicolon, return its position
    for (var i = line, e = Math.min(cm.lastLine(), line + 10); i <= e; ++i) {
      var text = cm.getLine(i), semi = text.indexOf(";");
      if (semi != -1) return {startCh: start.end, end: CodeMirror.Pos(i, semi)};
    }
  }

  var startLine = start.line, has = hasImport(startLine), prev;
  if (!has || hasImport(startLine - 1) || ((prev = hasImport(startLine - 2)) && prev.end.line == startLine - 1))
    return null;
  for (var end = has.end;;) {
    var next = hasImport(end.line + 1);
    if (next == null) break;
    end = next.end;
  }
  return {from: cm.clipPos(CodeMirror.Pos(startLine, has.startCh + 1)), to: end};
});

CodeMirror.registerHelper("fold", "include", function(cm, start) {
  function hasInclude(line) {
    if (line < cm.firstLine() || line > cm.lastLine()) return null;
    var start = cm.getTokenAt(CodeMirror.Pos(line, 1));
    if (!/\S/.test(start.string)) start = cm.getTokenAt(CodeMirror.Pos(line, start.end + 1));
    if (start.type == "meta" && start.string.slice(0, 8) == "#include") return start.start + 8;
  }

  var startLine = start.line, has = hasInclude(startLine);
  if (has == null || hasInclude(startLine - 1) != null) return null;
  for (var end = startLine;;) {
    var next = hasInclude(end + 1);
    if (next == null) break;
    ++end;
  }
  return {from: CodeMirror.Pos(startLine, has + 1),
          to: cm.clipPos(CodeMirror.Pos(end))};
});

});

},{"../../lib/codemirror":65}],57:[function(require,module,exports){
// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: http://codemirror.net/LICENSE

(function(mod) {
  if (typeof exports == "object" && typeof module == "object") // CommonJS
    mod(require("../../lib/codemirror"));
  else if (typeof define == "function" && define.amd) // AMD
    define(["../../lib/codemirror"], mod);
  else // Plain browser env
    mod(CodeMirror);
})(function(CodeMirror) {
  "use strict";

  function doFold(cm, pos, options, force) {
    if (options && options.call) {
      var finder = options;
      options = null;
    } else {
      var finder = getOption(cm, options, "rangeFinder");
    }
    if (typeof pos == "number") pos = CodeMirror.Pos(pos, 0);
    var minSize = getOption(cm, options, "minFoldSize");

    function getRange(allowFolded) {
      var range = finder(cm, pos);
      if (!range || range.to.line - range.from.line < minSize) return null;
      var marks = cm.findMarksAt(range.from);
      for (var i = 0; i < marks.length; ++i) {
        if (marks[i].__isFold && force !== "fold") {
          if (!allowFolded) return null;
          range.cleared = true;
          marks[i].clear();
        }
      }
      return range;
    }

    var range = getRange(true);
    if (getOption(cm, options, "scanUp")) while (!range && pos.line > cm.firstLine()) {
      pos = CodeMirror.Pos(pos.line - 1, 0);
      range = getRange(false);
    }
    if (!range || range.cleared || force === "unfold") return;

    var myWidget = makeWidget(cm, options);
    CodeMirror.on(myWidget, "mousedown", function(e) {
      myRange.clear();
      CodeMirror.e_preventDefault(e);
    });
    var myRange = cm.markText(range.from, range.to, {
      replacedWith: myWidget,
      clearOnEnter: getOption(cm, options, "clearOnEnter"),
      __isFold: true
    });
    myRange.on("clear", function(from, to) {
      CodeMirror.signal(cm, "unfold", cm, from, to);
    });
    CodeMirror.signal(cm, "fold", cm, range.from, range.to);
  }

  function makeWidget(cm, options) {
    var widget = getOption(cm, options, "widget");
    if (typeof widget == "string") {
      var text = document.createTextNode(widget);
      widget = document.createElement("span");
      widget.appendChild(text);
      widget.className = "CodeMirror-foldmarker";
    }
    return widget;
  }

  // Clumsy backwards-compatible interface
  CodeMirror.newFoldFunction = function(rangeFinder, widget) {
    return function(cm, pos) { doFold(cm, pos, {rangeFinder: rangeFinder, widget: widget}); };
  };

  // New-style interface
  CodeMirror.defineExtension("foldCode", function(pos, options, force) {
    doFold(this, pos, options, force);
  });

  CodeMirror.defineExtension("isFolded", function(pos) {
    var marks = this.findMarksAt(pos);
    for (var i = 0; i < marks.length; ++i)
      if (marks[i].__isFold) return true;
  });

  CodeMirror.commands.toggleFold = function(cm) {
    cm.foldCode(cm.getCursor());
  };
  CodeMirror.commands.fold = function(cm) {
    cm.foldCode(cm.getCursor(), null, "fold");
  };
  CodeMirror.commands.unfold = function(cm) {
    cm.foldCode(cm.getCursor(), null, "unfold");
  };
  CodeMirror.commands.foldAll = function(cm) {
    cm.operation(function() {
      for (var i = cm.firstLine(), e = cm.lastLine(); i <= e; i++)
        cm.foldCode(CodeMirror.Pos(i, 0), null, "fold");
    });
  };
  CodeMirror.commands.unfoldAll = function(cm) {
    cm.operation(function() {
      for (var i = cm.firstLine(), e = cm.lastLine(); i <= e; i++)
        cm.foldCode(CodeMirror.Pos(i, 0), null, "unfold");
    });
  };

  CodeMirror.registerHelper("fold", "combine", function() {
    var funcs = Array.prototype.slice.call(arguments, 0);
    return function(cm, start) {
      for (var i = 0; i < funcs.length; ++i) {
        var found = funcs[i](cm, start);
        if (found) return found;
      }
    };
  });

  CodeMirror.registerHelper("fold", "auto", function(cm, start) {
    var helpers = cm.getHelpers(start, "fold");
    for (var i = 0; i < helpers.length; i++) {
      var cur = helpers[i](cm, start);
      if (cur) return cur;
    }
  });

  var defaultOptions = {
    rangeFinder: CodeMirror.fold.auto,
    widget: "\u2194",
    minFoldSize: 0,
    scanUp: false,
    clearOnEnter: true
  };

  CodeMirror.defineOption("foldOptions", null);

  function getOption(cm, options, name) {
    if (options && options[name] !== undefined)
      return options[name];
    var editorOptions = cm.options.foldOptions;
    if (editorOptions && editorOptions[name] !== undefined)
      return editorOptions[name];
    return defaultOptions[name];
  }

  CodeMirror.defineExtension("foldOption", function(options, name) {
    return getOption(this, options, name);
  });
});

},{"../../lib/codemirror":65}],58:[function(require,module,exports){
// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: http://codemirror.net/LICENSE

(function(mod) {
  if (typeof exports == "object" && typeof module == "object") // CommonJS
    mod(require("../../lib/codemirror"), require("./foldcode"));
  else if (typeof define == "function" && define.amd) // AMD
    define(["../../lib/codemirror", "./foldcode"], mod);
  else // Plain browser env
    mod(CodeMirror);
})(function(CodeMirror) {
  "use strict";

  CodeMirror.defineOption("foldGutter", false, function(cm, val, old) {
    if (old && old != CodeMirror.Init) {
      cm.clearGutter(cm.state.foldGutter.options.gutter);
      cm.state.foldGutter = null;
      cm.off("gutterClick", onGutterClick);
      cm.off("change", onChange);
      cm.off("viewportChange", onViewportChange);
      cm.off("fold", onFold);
      cm.off("unfold", onFold);
      cm.off("swapDoc", onChange);
    }
    if (val) {
      cm.state.foldGutter = new State(parseOptions(val));
      updateInViewport(cm);
      cm.on("gutterClick", onGutterClick);
      cm.on("change", onChange);
      cm.on("viewportChange", onViewportChange);
      cm.on("fold", onFold);
      cm.on("unfold", onFold);
      cm.on("swapDoc", onChange);
    }
  });

  var Pos = CodeMirror.Pos;

  function State(options) {
    this.options = options;
    this.from = this.to = 0;
  }

  function parseOptions(opts) {
    if (opts === true) opts = {};
    if (opts.gutter == null) opts.gutter = "CodeMirror-foldgutter";
    if (opts.indicatorOpen == null) opts.indicatorOpen = "CodeMirror-foldgutter-open";
    if (opts.indicatorFolded == null) opts.indicatorFolded = "CodeMirror-foldgutter-folded";
    return opts;
  }

  function isFolded(cm, line) {
    var marks = cm.findMarks(Pos(line, 0), Pos(line + 1, 0));
    for (var i = 0; i < marks.length; ++i)
      if (marks[i].__isFold && marks[i].find().from.line == line) return marks[i];
  }

  function marker(spec) {
    if (typeof spec == "string") {
      var elt = document.createElement("div");
      elt.className = spec + " CodeMirror-guttermarker-subtle";
      return elt;
    } else {
      return spec.cloneNode(true);
    }
  }

  function updateFoldInfo(cm, from, to) {
    var opts = cm.state.foldGutter.options, cur = from;
    var minSize = cm.foldOption(opts, "minFoldSize");
    var func = cm.foldOption(opts, "rangeFinder");
    cm.eachLine(from, to, function(line) {
      var mark = null;
      if (isFolded(cm, cur)) {
        mark = marker(opts.indicatorFolded);
      } else {
        var pos = Pos(cur, 0);
        var range = func && func(cm, pos);
        if (range && range.to.line - range.from.line >= minSize)
          mark = marker(opts.indicatorOpen);
      }
      cm.setGutterMarker(line, opts.gutter, mark);
      ++cur;
    });
  }

  function updateInViewport(cm) {
    var vp = cm.getViewport(), state = cm.state.foldGutter;
    if (!state) return;
    cm.operation(function() {
      updateFoldInfo(cm, vp.from, vp.to);
    });
    state.from = vp.from; state.to = vp.to;
  }

  function onGutterClick(cm, line, gutter) {
    var state = cm.state.foldGutter;
    if (!state) return;
    var opts = state.options;
    if (gutter != opts.gutter) return;
    var folded = isFolded(cm, line);
    if (folded) folded.clear();
    else cm.foldCode(Pos(line, 0), opts.rangeFinder);
  }

  function onChange(cm) {
    var state = cm.state.foldGutter;
    if (!state) return;
    var opts = state.options;
    state.from = state.to = 0;
    clearTimeout(state.changeUpdate);
    state.changeUpdate = setTimeout(function() { updateInViewport(cm); }, opts.foldOnChangeTimeSpan || 600);
  }

  function onViewportChange(cm) {
    var state = cm.state.foldGutter;
    if (!state) return;
    var opts = state.options;
    clearTimeout(state.changeUpdate);
    state.changeUpdate = setTimeout(function() {
      var vp = cm.getViewport();
      if (state.from == state.to || vp.from - state.to > 20 || state.from - vp.to > 20) {
        updateInViewport(cm);
      } else {
        cm.operation(function() {
          if (vp.from < state.from) {
            updateFoldInfo(cm, vp.from, state.from);
            state.from = vp.from;
          }
          if (vp.to > state.to) {
            updateFoldInfo(cm, state.to, vp.to);
            state.to = vp.to;
          }
        });
      }
    }, opts.updateViewportTimeSpan || 400);
  }

  function onFold(cm, from) {
    var state = cm.state.foldGutter;
    if (!state) return;
    var line = from.line;
    if (line >= state.from && line < state.to)
      updateFoldInfo(cm, line, line + 1);
  }
});

},{"../../lib/codemirror":65,"./foldcode":57}],59:[function(require,module,exports){
// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: http://codemirror.net/LICENSE

(function(mod) {
  if (typeof exports == "object" && typeof module == "object") // CommonJS
    mod(require("../../lib/codemirror"));
  else if (typeof define == "function" && define.amd) // AMD
    define(["../../lib/codemirror"], mod);
  else // Plain browser env
    mod(CodeMirror);
})(function(CodeMirror) {
  "use strict";

  var HINT_ELEMENT_CLASS        = "CodeMirror-hint";
  var ACTIVE_HINT_ELEMENT_CLASS = "CodeMirror-hint-active";

  // This is the old interface, kept around for now to stay
  // backwards-compatible.
  CodeMirror.showHint = function(cm, getHints, options) {
    if (!getHints) return cm.showHint(options);
    if (options && options.async) getHints.async = true;
    var newOpts = {hint: getHints};
    if (options) for (var prop in options) newOpts[prop] = options[prop];
    return cm.showHint(newOpts);
  };

  CodeMirror.defineExtension("showHint", function(options) {
    options = parseOptions(this, this.getCursor("start"), options);
    var selections = this.listSelections()
    if (selections.length > 1) return;
    // By default, don't allow completion when something is selected.
    // A hint function can have a `supportsSelection` property to
    // indicate that it can handle selections.
    if (this.somethingSelected()) {
      if (!options.hint.supportsSelection) return;
      // Don't try with cross-line selections
      for (var i = 0; i < selections.length; i++)
        if (selections[i].head.line != selections[i].anchor.line) return;
    }

    if (this.state.completionActive) this.state.completionActive.close();
    var completion = this.state.completionActive = new Completion(this, options);
    if (!completion.options.hint) return;

    CodeMirror.signal(this, "startCompletion", this);
    completion.update(true);
  });

  function Completion(cm, options) {
    this.cm = cm;
    this.options = options;
    this.widget = null;
    this.debounce = 0;
    this.tick = 0;
    this.startPos = this.cm.getCursor("start");
    this.startLen = this.cm.getLine(this.startPos.line).length - this.cm.getSelection().length;

    var self = this;
    cm.on("cursorActivity", this.activityFunc = function() { self.cursorActivity(); });
  }

  var requestAnimationFrame = window.requestAnimationFrame || function(fn) {
    return setTimeout(fn, 1000/60);
  };
  var cancelAnimationFrame = window.cancelAnimationFrame || clearTimeout;

  Completion.prototype = {
    close: function() {
      if (!this.active()) return;
      this.cm.state.completionActive = null;
      this.tick = null;
      this.cm.off("cursorActivity", this.activityFunc);

      if (this.widget && this.data) CodeMirror.signal(this.data, "close");
      if (this.widget) this.widget.close();
      CodeMirror.signal(this.cm, "endCompletion", this.cm);
    },

    active: function() {
      return this.cm.state.completionActive == this;
    },

    pick: function(data, i) {
      var completion = data.list[i];
      if (completion.hint) completion.hint(this.cm, data, completion);
      else this.cm.replaceRange(getText(completion), completion.from || data.from,
                                completion.to || data.to, "complete");
      CodeMirror.signal(data, "pick", completion);
      this.close();
    },

    cursorActivity: function() {
      if (this.debounce) {
        cancelAnimationFrame(this.debounce);
        this.debounce = 0;
      }

      var pos = this.cm.getCursor(), line = this.cm.getLine(pos.line);
      if (pos.line != this.startPos.line || line.length - pos.ch != this.startLen - this.startPos.ch ||
          pos.ch < this.startPos.ch || this.cm.somethingSelected() ||
          (pos.ch && this.options.closeCharacters.test(line.charAt(pos.ch - 1)))) {
        this.close();
      } else {
        var self = this;
        this.debounce = requestAnimationFrame(function() {self.update();});
        if (this.widget) this.widget.disable();
      }
    },

    update: function(first) {
      if (this.tick == null) return
      var self = this, myTick = ++this.tick
      fetchHints(this.options.hint, this.cm, this.options, function(data) {
        if (self.tick == myTick) self.finishUpdate(data, first)
      })
    },

    finishUpdate: function(data, first) {
      if (this.data) CodeMirror.signal(this.data, "update");

      var picked = (this.widget && this.widget.picked) || (first && this.options.completeSingle);
      if (this.widget) this.widget.close();

      if (data && this.data && isNewCompletion(this.data, data)) return;
      this.data = data;

      if (data && data.list.length) {
        if (picked && data.list.length == 1) {
          this.pick(data, 0);
        } else {
          this.widget = new Widget(this, data);
          CodeMirror.signal(data, "shown");
        }
      }
    }
  };

  function isNewCompletion(old, nw) {
    var moved = CodeMirror.cmpPos(nw.from, old.from)
    return moved > 0 && old.to.ch - old.from.ch != nw.to.ch - nw.from.ch
  }

  function parseOptions(cm, pos, options) {
    var editor = cm.options.hintOptions;
    var out = {};
    for (var prop in defaultOptions) out[prop] = defaultOptions[prop];
    if (editor) for (var prop in editor)
      if (editor[prop] !== undefined) out[prop] = editor[prop];
    if (options) for (var prop in options)
      if (options[prop] !== undefined) out[prop] = options[prop];
    if (out.hint.resolve) out.hint = out.hint.resolve(cm, pos)
    return out;
  }

  function getText(completion) {
    if (typeof completion == "string") return completion;
    else return completion.text;
  }

  function buildKeyMap(completion, handle) {
    var baseMap = {
      Up: function() {handle.moveFocus(-1);},
      Down: function() {handle.moveFocus(1);},
      PageUp: function() {handle.moveFocus(-handle.menuSize() + 1, true);},
      PageDown: function() {handle.moveFocus(handle.menuSize() - 1, true);},
      Home: function() {handle.setFocus(0);},
      End: function() {handle.setFocus(handle.length - 1);},
      Enter: handle.pick,
      Tab: handle.pick,
      Esc: handle.close
    };
    var custom = completion.options.customKeys;
    var ourMap = custom ? {} : baseMap;
    function addBinding(key, val) {
      var bound;
      if (typeof val != "string")
        bound = function(cm) { return val(cm, handle); };
      // This mechanism is deprecated
      else if (baseMap.hasOwnProperty(val))
        bound = baseMap[val];
      else
        bound = val;
      ourMap[key] = bound;
    }
    if (custom)
      for (var key in custom) if (custom.hasOwnProperty(key))
        addBinding(key, custom[key]);
    var extra = completion.options.extraKeys;
    if (extra)
      for (var key in extra) if (extra.hasOwnProperty(key))
        addBinding(key, extra[key]);
    return ourMap;
  }

  function getHintElement(hintsElement, el) {
    while (el && el != hintsElement) {
      if (el.nodeName.toUpperCase() === "LI" && el.parentNode == hintsElement) return el;
      el = el.parentNode;
    }
  }

  function Widget(completion, data) {
    this.completion = completion;
    this.data = data;
    this.picked = false;
    var widget = this, cm = completion.cm;

    var hints = this.hints = document.createElement("ul");
    hints.className = "CodeMirror-hints";
    this.selectedHint = data.selectedHint || 0;

    var completions = data.list;
    for (var i = 0; i < completions.length; ++i) {
      var elt = hints.appendChild(document.createElement("li")), cur = completions[i];
      var className = HINT_ELEMENT_CLASS + (i != this.selectedHint ? "" : " " + ACTIVE_HINT_ELEMENT_CLASS);
      if (cur.className != null) className = cur.className + " " + className;
      elt.className = className;
      if (cur.render) cur.render(elt, data, cur);
      else elt.appendChild(document.createTextNode(cur.displayText || getText(cur)));
      elt.hintId = i;
    }

    var pos = cm.cursorCoords(completion.options.alignWithWord ? data.from : null);
    var left = pos.left, top = pos.bottom, below = true;
    hints.style.left = left + "px";
    hints.style.top = top + "px";
    // If we're at the edge of the screen, then we want the menu to appear on the left of the cursor.
    var winW = window.innerWidth || Math.max(document.body.offsetWidth, document.documentElement.offsetWidth);
    var winH = window.innerHeight || Math.max(document.body.offsetHeight, document.documentElement.offsetHeight);
    (completion.options.container || document.body).appendChild(hints);
    var box = hints.getBoundingClientRect(), overlapY = box.bottom - winH;
    var scrolls = hints.scrollHeight > hints.clientHeight + 1
    var startScroll = cm.getScrollInfo();

    if (overlapY > 0) {
      var height = box.bottom - box.top, curTop = pos.top - (pos.bottom - box.top);
      if (curTop - height > 0) { // Fits above cursor
        hints.style.top = (top = pos.top - height) + "px";
        below = false;
      } else if (height > winH) {
        hints.style.height = (winH - 5) + "px";
        hints.style.top = (top = pos.bottom - box.top) + "px";
        var cursor = cm.getCursor();
        if (data.from.ch != cursor.ch) {
          pos = cm.cursorCoords(cursor);
          hints.style.left = (left = pos.left) + "px";
          box = hints.getBoundingClientRect();
        }
      }
    }
    var overlapX = box.right - winW;
    if (overlapX > 0) {
      if (box.right - box.left > winW) {
        hints.style.width = (winW - 5) + "px";
        overlapX -= (box.right - box.left) - winW;
      }
      hints.style.left = (left = pos.left - overlapX) + "px";
    }
    if (scrolls) for (var node = hints.firstChild; node; node = node.nextSibling)
      node.style.paddingRight = cm.display.nativeBarWidth + "px"

    cm.addKeyMap(this.keyMap = buildKeyMap(completion, {
      moveFocus: function(n, avoidWrap) { widget.changeActive(widget.selectedHint + n, avoidWrap); },
      setFocus: function(n) { widget.changeActive(n); },
      menuSize: function() { return widget.screenAmount(); },
      length: completions.length,
      close: function() { completion.close(); },
      pick: function() { widget.pick(); },
      data: data
    }));

    if (completion.options.closeOnUnfocus) {
      var closingOnBlur;
      cm.on("blur", this.onBlur = function() { closingOnBlur = setTimeout(function() { completion.close(); }, 100); });
      cm.on("focus", this.onFocus = function() { clearTimeout(closingOnBlur); });
    }

    cm.on("scroll", this.onScroll = function() {
      var curScroll = cm.getScrollInfo(), editor = cm.getWrapperElement().getBoundingClientRect();
      var newTop = top + startScroll.top - curScroll.top;
      var point = newTop - (window.pageYOffset || (document.documentElement || document.body).scrollTop);
      if (!below) point += hints.offsetHeight;
      if (point <= editor.top || point >= editor.bottom) return completion.close();
      hints.style.top = newTop + "px";
      hints.style.left = (left + startScroll.left - curScroll.left) + "px";
    });

    CodeMirror.on(hints, "dblclick", function(e) {
      var t = getHintElement(hints, e.target || e.srcElement);
      if (t && t.hintId != null) {widget.changeActive(t.hintId); widget.pick();}
    });

    CodeMirror.on(hints, "click", function(e) {
      var t = getHintElement(hints, e.target || e.srcElement);
      if (t && t.hintId != null) {
        widget.changeActive(t.hintId);
        if (completion.options.completeOnSingleClick) widget.pick();
      }
    });

    CodeMirror.on(hints, "mousedown", function() {
      setTimeout(function(){cm.focus();}, 20);
    });

    CodeMirror.signal(data, "select", completions[0], hints.firstChild);
    return true;
  }

  Widget.prototype = {
    close: function() {
      if (this.completion.widget != this) return;
      this.completion.widget = null;
      this.hints.parentNode.removeChild(this.hints);
      this.completion.cm.removeKeyMap(this.keyMap);

      var cm = this.completion.cm;
      if (this.completion.options.closeOnUnfocus) {
        cm.off("blur", this.onBlur);
        cm.off("focus", this.onFocus);
      }
      cm.off("scroll", this.onScroll);
    },

    disable: function() {
      this.completion.cm.removeKeyMap(this.keyMap);
      var widget = this;
      this.keyMap = {Enter: function() { widget.picked = true; }};
      this.completion.cm.addKeyMap(this.keyMap);
    },

    pick: function() {
      this.completion.pick(this.data, this.selectedHint);
    },

    changeActive: function(i, avoidWrap) {
      if (i >= this.data.list.length)
        i = avoidWrap ? this.data.list.length - 1 : 0;
      else if (i < 0)
        i = avoidWrap ? 0  : this.data.list.length - 1;
      if (this.selectedHint == i) return;
      var node = this.hints.childNodes[this.selectedHint];
      node.className = node.className.replace(" " + ACTIVE_HINT_ELEMENT_CLASS, "");
      node = this.hints.childNodes[this.selectedHint = i];
      node.className += " " + ACTIVE_HINT_ELEMENT_CLASS;
      if (node.offsetTop < this.hints.scrollTop)
        this.hints.scrollTop = node.offsetTop - 3;
      else if (node.offsetTop + node.offsetHeight > this.hints.scrollTop + this.hints.clientHeight)
        this.hints.scrollTop = node.offsetTop + node.offsetHeight - this.hints.clientHeight + 3;
      CodeMirror.signal(this.data, "select", this.data.list[this.selectedHint], node);
    },

    screenAmount: function() {
      return Math.floor(this.hints.clientHeight / this.hints.firstChild.offsetHeight) || 1;
    }
  };

  function applicableHelpers(cm, helpers) {
    if (!cm.somethingSelected()) return helpers
    var result = []
    for (var i = 0; i < helpers.length; i++)
      if (helpers[i].supportsSelection) result.push(helpers[i])
    return result
  }

  function fetchHints(hint, cm, options, callback) {
    if (hint.async) {
      hint(cm, callback, options)
    } else {
      var result = hint(cm, options)
      if (result && result.then) result.then(callback)
      else callback(result)
    }
  }

  function resolveAutoHints(cm, pos) {
    var helpers = cm.getHelpers(pos, "hint"), words
    if (helpers.length) {
      var resolved = function(cm, callback, options) {
        var app = applicableHelpers(cm, helpers);
        function run(i) {
          if (i == app.length) return callback(null)
          fetchHints(app[i], cm, options, function(result) {
            if (result && result.list.length > 0) callback(result)
            else run(i + 1)
          })
        }
        run(0)
      }
      resolved.async = true
      resolved.supportsSelection = true
      return resolved
    } else if (words = cm.getHelper(cm.getCursor(), "hintWords")) {
      return function(cm) { return CodeMirror.hint.fromList(cm, {words: words}) }
    } else if (CodeMirror.hint.anyword) {
      return function(cm, options) { return CodeMirror.hint.anyword(cm, options) }
    } else {
      return function() {}
    }
  }

  CodeMirror.registerHelper("hint", "auto", {
    resolve: resolveAutoHints
  });

  CodeMirror.registerHelper("hint", "fromList", function(cm, options) {
    var cur = cm.getCursor(), token = cm.getTokenAt(cur);
    var to = CodeMirror.Pos(cur.line, token.end);
    if (token.string && /\w/.test(token.string[token.string.length - 1])) {
      var term = token.string, from = CodeMirror.Pos(cur.line, token.start);
    } else {
      var term = "", from = to;
    }
    var found = [];
    for (var i = 0; i < options.words.length; i++) {
      var word = options.words[i];
      if (word.slice(0, term.length) == term)
        found.push(word);
    }

    if (found.length) return {list: found, from: from, to: to};
  });

  CodeMirror.commands.autocomplete = CodeMirror.showHint;

  var defaultOptions = {
    hint: CodeMirror.hint.auto,
    completeSingle: true,
    alignWithWord: true,
    closeCharacters: /[\s()\[\]{};:>,]/,
    closeOnUnfocus: true,
    completeOnSingleClick: true,
    container: null,
    customKeys: null,
    extraKeys: null
  };

  CodeMirror.defineOption("hintOptions", null);
});

},{"../../lib/codemirror":65}],60:[function(require,module,exports){
// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: http://codemirror.net/LICENSE

(function(mod) {
  if (typeof exports == "object" && typeof module == "object") // CommonJS
    mod(require("../../lib/codemirror"));
  else if (typeof define == "function" && define.amd) // AMD
    define(["../../lib/codemirror"], mod);
  else // Plain browser env
    mod(CodeMirror);
})(function(CodeMirror) {
  "use strict";
  var GUTTER_ID = "CodeMirror-lint-markers";

  function showTooltip(e, content) {
    var tt = document.createElement("div");
    tt.className = "CodeMirror-lint-tooltip";
    tt.appendChild(content.cloneNode(true));
    document.body.appendChild(tt);

    function position(e) {
      if (!tt.parentNode) return CodeMirror.off(document, "mousemove", position);
      tt.style.top = Math.max(0, e.clientY - tt.offsetHeight - 5) + "px";
      tt.style.left = (e.clientX + 5) + "px";
    }
    CodeMirror.on(document, "mousemove", position);
    position(e);
    if (tt.style.opacity != null) tt.style.opacity = 1;
    return tt;
  }
  function rm(elt) {
    if (elt.parentNode) elt.parentNode.removeChild(elt);
  }
  function hideTooltip(tt) {
    if (!tt.parentNode) return;
    if (tt.style.opacity == null) rm(tt);
    tt.style.opacity = 0;
    setTimeout(function() { rm(tt); }, 600);
  }

  function showTooltipFor(e, content, node) {
    var tooltip = showTooltip(e, content);
    function hide() {
      CodeMirror.off(node, "mouseout", hide);
      if (tooltip) { hideTooltip(tooltip); tooltip = null; }
    }
    var poll = setInterval(function() {
      if (tooltip) for (var n = node;; n = n.parentNode) {
        if (n && n.nodeType == 11) n = n.host;
        if (n == document.body) return;
        if (!n) { hide(); break; }
      }
      if (!tooltip) return clearInterval(poll);
    }, 400);
    CodeMirror.on(node, "mouseout", hide);
  }

  function LintState(cm, options, hasGutter) {
    this.marked = [];
    this.options = options;
    this.timeout = null;
    this.hasGutter = hasGutter;
    this.onMouseOver = function(e) { onMouseOver(cm, e); };
    this.waitingFor = 0
  }

  function parseOptions(_cm, options) {
    if (options instanceof Function) return {getAnnotations: options};
    if (!options || options === true) options = {};
    return options;
  }

  function clearMarks(cm) {
    var state = cm.state.lint;
    if (state.hasGutter) cm.clearGutter(GUTTER_ID);
    for (var i = 0; i < state.marked.length; ++i)
      state.marked[i].clear();
    state.marked.length = 0;
  }

  function makeMarker(labels, severity, multiple, tooltips) {
    var marker = document.createElement("div"), inner = marker;
    marker.className = "CodeMirror-lint-marker-" + severity;
    if (multiple) {
      inner = marker.appendChild(document.createElement("div"));
      inner.className = "CodeMirror-lint-marker-multiple";
    }

    if (tooltips != false) CodeMirror.on(inner, "mouseover", function(e) {
      showTooltipFor(e, labels, inner);
    });

    return marker;
  }

  function getMaxSeverity(a, b) {
    if (a == "error") return a;
    else return b;
  }

  function groupByLine(annotations) {
    var lines = [];
    for (var i = 0; i < annotations.length; ++i) {
      var ann = annotations[i], line = ann.from.line;
      (lines[line] || (lines[line] = [])).push(ann);
    }
    return lines;
  }

  function annotationTooltip(ann) {
    var severity = ann.severity;
    if (!severity) severity = "error";
    var tip = document.createElement("div");
    tip.className = "CodeMirror-lint-message-" + severity;
    tip.appendChild(document.createTextNode(ann.message));
    return tip;
  }

  function lintAsync(cm, getAnnotations, passOptions) {
    var state = cm.state.lint
    var id = ++state.waitingFor
    function abort() {
      id = -1
      cm.off("change", abort)
    }
    cm.on("change", abort)
    getAnnotations(cm.getValue(), function(annotations, arg2) {
      cm.off("change", abort)
      if (state.waitingFor != id) return
      if (arg2 && annotations instanceof CodeMirror) annotations = arg2
      updateLinting(cm, annotations)
    }, passOptions, cm);
  }

  function startLinting(cm) {
    var state = cm.state.lint, options = state.options;
    var passOptions = options.options || options; // Support deprecated passing of `options` property in options
    var getAnnotations = options.getAnnotations || cm.getHelper(CodeMirror.Pos(0, 0), "lint");
    if (!getAnnotations) return;
    if (options.async || getAnnotations.async) {
      lintAsync(cm, getAnnotations, passOptions)
    } else {
      var annotations = getAnnotations(cm.getValue(), passOptions, cm);
      if (!annotations) return;
      if (annotations.then) annotations.then(function(issues) {
        updateLinting(cm, issues);
      });
      else updateLinting(cm, annotations);
    }
  }

  function updateLinting(cm, annotationsNotSorted) {
    clearMarks(cm);
    var state = cm.state.lint, options = state.options;

    var annotations = groupByLine(annotationsNotSorted);

    for (var line = 0; line < annotations.length; ++line) {
      var anns = annotations[line];
      if (!anns) continue;

      var maxSeverity = null;
      var tipLabel = state.hasGutter && document.createDocumentFragment();

      for (var i = 0; i < anns.length; ++i) {
        var ann = anns[i];
        var severity = ann.severity;
        if (!severity) severity = "error";
        maxSeverity = getMaxSeverity(maxSeverity, severity);

        if (options.formatAnnotation) ann = options.formatAnnotation(ann);
        if (state.hasGutter) tipLabel.appendChild(annotationTooltip(ann));

        if (ann.to) state.marked.push(cm.markText(ann.from, ann.to, {
          className: "CodeMirror-lint-mark-" + severity,
          __annotation: ann
        }));
      }

      if (state.hasGutter)
        cm.setGutterMarker(line, GUTTER_ID, makeMarker(tipLabel, maxSeverity, anns.length > 1,
                                                       state.options.tooltips));
    }
    if (options.onUpdateLinting) options.onUpdateLinting(annotationsNotSorted, annotations, cm);
  }

  function onChange(cm) {
    var state = cm.state.lint;
    if (!state) return;
    clearTimeout(state.timeout);
    state.timeout = setTimeout(function(){startLinting(cm);}, state.options.delay || 500);
  }

  function popupTooltips(annotations, e) {
    var target = e.target || e.srcElement;
    var tooltip = document.createDocumentFragment();
    for (var i = 0; i < annotations.length; i++) {
      var ann = annotations[i];
      tooltip.appendChild(annotationTooltip(ann));
    }
    showTooltipFor(e, tooltip, target);
  }

  function onMouseOver(cm, e) {
    var target = e.target || e.srcElement;
    if (!/\bCodeMirror-lint-mark-/.test(target.className)) return;
    var box = target.getBoundingClientRect(), x = (box.left + box.right) / 2, y = (box.top + box.bottom) / 2;
    var spans = cm.findMarksAt(cm.coordsChar({left: x, top: y}, "client"));

    var annotations = [];
    for (var i = 0; i < spans.length; ++i) {
      var ann = spans[i].__annotation;
      if (ann) annotations.push(ann);
    }
    if (annotations.length) popupTooltips(annotations, e);
  }

  CodeMirror.defineOption("lint", false, function(cm, val, old) {
    if (old && old != CodeMirror.Init) {
      clearMarks(cm);
      if (cm.state.lint.options.lintOnChange !== false)
        cm.off("change", onChange);
      CodeMirror.off(cm.getWrapperElement(), "mouseover", cm.state.lint.onMouseOver);
      clearTimeout(cm.state.lint.timeout);
      delete cm.state.lint;
    }

    if (val) {
      var gutters = cm.getOption("gutters"), hasLintGutter = false;
      for (var i = 0; i < gutters.length; ++i) if (gutters[i] == GUTTER_ID) hasLintGutter = true;
      var state = cm.state.lint = new LintState(cm, parseOptions(cm, val), hasLintGutter);
      if (state.options.lintOnChange !== false)
        cm.on("change", onChange);
      if (state.options.tooltips != false && state.options.tooltips != "gutter")
        CodeMirror.on(cm.getWrapperElement(), "mouseover", state.onMouseOver);

      startLinting(cm);
    }
  });

  CodeMirror.defineExtension("performLint", function() {
    if (this.state.lint) startLinting(this);
  });
});

},{"../../lib/codemirror":65}],61:[function(require,module,exports){
// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: http://codemirror.net/LICENSE

// Defines jumpToLine command. Uses dialog.js if present.

(function(mod) {
  if (typeof exports == "object" && typeof module == "object") // CommonJS
    mod(require("../../lib/codemirror"), require("../dialog/dialog"));
  else if (typeof define == "function" && define.amd) // AMD
    define(["../../lib/codemirror", "../dialog/dialog"], mod);
  else // Plain browser env
    mod(CodeMirror);
})(function(CodeMirror) {
  "use strict";

  function dialog(cm, text, shortText, deflt, f) {
    if (cm.openDialog) cm.openDialog(text, f, {value: deflt, selectValueOnOpen: true});
    else f(prompt(shortText, deflt));
  }

  var jumpDialog =
      'Jump to line: <input type="text" style="width: 10em" class="CodeMirror-search-field"/> <span style="color: #888" class="CodeMirror-search-hint">(Use line:column or scroll% syntax)</span>';

  function interpretLine(cm, string) {
    var num = Number(string)
    if (/^[-+]/.test(string)) return cm.getCursor().line + num
    else return num - 1
  }

  CodeMirror.commands.jumpToLine = function(cm) {
    var cur = cm.getCursor();
    dialog(cm, jumpDialog, "Jump to line:", (cur.line + 1) + ":" + cur.ch, function(posStr) {
      if (!posStr) return;

      var match;
      if (match = /^\s*([\+\-]?\d+)\s*\:\s*(\d+)\s*$/.exec(posStr)) {
        cm.setCursor(interpretLine(cm, match[1]), Number(match[2]))
      } else if (match = /^\s*([\+\-]?\d+(\.\d+)?)\%\s*/.exec(posStr)) {
        var line = Math.round(cm.lineCount() * Number(match[1]) / 100);
        if (/^[-+]/.test(match[1])) line = cur.line + line + 1;
        cm.setCursor(line - 1, cur.ch);
      } else if (match = /^\s*\:?\s*([\+\-]?\d+)\s*/.exec(posStr)) {
        cm.setCursor(interpretLine(cm, match[1]), cur.ch);
      }
    });
  };

  CodeMirror.keyMap["default"]["Alt-G"] = "jumpToLine";
});

},{"../../lib/codemirror":65,"../dialog/dialog":53}],62:[function(require,module,exports){
// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: http://codemirror.net/LICENSE

// Define search commands. Depends on dialog.js or another
// implementation of the openDialog method.

// Replace works a little oddly -- it will do the replace on the next
// Ctrl-G (or whatever is bound to findNext) press. You prevent a
// replace by making sure the match is no longer selected when hitting
// Ctrl-G.

(function(mod) {
  if (typeof exports == "object" && typeof module == "object") // CommonJS
    mod(require("../../lib/codemirror"), require("./searchcursor"), require("../dialog/dialog"));
  else if (typeof define == "function" && define.amd) // AMD
    define(["../../lib/codemirror", "./searchcursor", "../dialog/dialog"], mod);
  else // Plain browser env
    mod(CodeMirror);
})(function(CodeMirror) {
  "use strict";

  function searchOverlay(query, caseInsensitive) {
    if (typeof query == "string")
      query = new RegExp(query.replace(/[\-\[\]\/\{\}\(\)\*\+\?\.\\\^\$\|]/g, "\\$&"), caseInsensitive ? "gi" : "g");
    else if (!query.global)
      query = new RegExp(query.source, query.ignoreCase ? "gi" : "g");

    return {token: function(stream) {
      query.lastIndex = stream.pos;
      var match = query.exec(stream.string);
      if (match && match.index == stream.pos) {
        stream.pos += match[0].length || 1;
        return "searching";
      } else if (match) {
        stream.pos = match.index;
      } else {
        stream.skipToEnd();
      }
    }};
  }

  function SearchState() {
    this.posFrom = this.posTo = this.lastQuery = this.query = null;
    this.overlay = null;
  }

  function getSearchState(cm) {
    return cm.state.search || (cm.state.search = new SearchState());
  }

  function queryCaseInsensitive(query) {
    return typeof query == "string" && query == query.toLowerCase();
  }

  function getSearchCursor(cm, query, pos) {
    // Heuristic: if the query string is all lowercase, do a case insensitive search.
    return cm.getSearchCursor(query, pos, {caseFold: queryCaseInsensitive(query), multiline: true});
  }

  function persistentDialog(cm, text, deflt, onEnter, onKeyDown) {
    cm.openDialog(text, onEnter, {
      value: deflt,
      selectValueOnOpen: true,
      closeOnEnter: false,
      onClose: function() { clearSearch(cm); },
      onKeyDown: onKeyDown
    });
  }

  function dialog(cm, text, shortText, deflt, f) {
    if (cm.openDialog) cm.openDialog(text, f, {value: deflt, selectValueOnOpen: true});
    else f(prompt(shortText, deflt));
  }

  function confirmDialog(cm, text, shortText, fs) {
    if (cm.openConfirm) cm.openConfirm(text, fs);
    else if (confirm(shortText)) fs[0]();
  }

  function parseString(string) {
    return string.replace(/\\(.)/g, function(_, ch) {
      if (ch == "n") return "\n"
      if (ch == "r") return "\r"
      return ch
    })
  }

  function parseQuery(query) {
    var isRE = query.match(/^\/(.*)\/([a-z]*)$/);
    if (isRE) {
      try { query = new RegExp(isRE[1], isRE[2].indexOf("i") == -1 ? "" : "i"); }
      catch(e) {} // Not a regular expression after all, do a string search
    } else {
      query = parseString(query)
    }
    if (typeof query == "string" ? query == "" : query.test(""))
      query = /x^/;
    return query;
  }

  var queryDialog =
    '<span class="CodeMirror-search-label">Search:</span> <input type="text" style="width: 10em" class="CodeMirror-search-field"/> <span style="color: #888" class="CodeMirror-search-hint">(Use /re/ syntax for regexp search)</span>';

  function startSearch(cm, state, query) {
    state.queryText = query;
    state.query = parseQuery(query);
    cm.removeOverlay(state.overlay, queryCaseInsensitive(state.query));
    state.overlay = searchOverlay(state.query, queryCaseInsensitive(state.query));
    cm.addOverlay(state.overlay);
    if (cm.showMatchesOnScrollbar) {
      if (state.annotate) { state.annotate.clear(); state.annotate = null; }
      state.annotate = cm.showMatchesOnScrollbar(state.query, queryCaseInsensitive(state.query));
    }
  }

  function doSearch(cm, rev, persistent, immediate) {
    var state = getSearchState(cm);
    if (state.query) return findNext(cm, rev);
    var q = cm.getSelection() || state.lastQuery;
    if (persistent && cm.openDialog) {
      var hiding = null
      var searchNext = function(query, event) {
        CodeMirror.e_stop(event);
        if (!query) return;
        if (query != state.queryText) {
          startSearch(cm, state, query);
          state.posFrom = state.posTo = cm.getCursor();
        }
        if (hiding) hiding.style.opacity = 1
        findNext(cm, event.shiftKey, function(_, to) {
          var dialog
          if (to.line < 3 && document.querySelector &&
              (dialog = cm.display.wrapper.querySelector(".CodeMirror-dialog")) &&
              dialog.getBoundingClientRect().bottom - 4 > cm.cursorCoords(to, "window").top)
            (hiding = dialog).style.opacity = .4
        })
      };
      persistentDialog(cm, queryDialog, q, searchNext, function(event, query) {
        var keyName = CodeMirror.keyName(event)
        var cmd = CodeMirror.keyMap[cm.getOption("keyMap")][keyName]
        if (!cmd) cmd = cm.getOption('extraKeys')[keyName]
        if (cmd == "findNext" || cmd == "findPrev" ||
          cmd == "findPersistentNext" || cmd == "findPersistentPrev") {
          CodeMirror.e_stop(event);
          startSearch(cm, getSearchState(cm), query);
          cm.execCommand(cmd);
        } else if (cmd == "find" || cmd == "findPersistent") {
          CodeMirror.e_stop(event);
          searchNext(query, event);
        }
      });
      if (immediate && q) {
        startSearch(cm, state, q);
        findNext(cm, rev);
      }
    } else {
      dialog(cm, queryDialog, "Search for:", q, function(query) {
        if (query && !state.query) cm.operation(function() {
          startSearch(cm, state, query);
          state.posFrom = state.posTo = cm.getCursor();
          findNext(cm, rev);
        });
      });
    }
  }

  function findNext(cm, rev, callback) {cm.operation(function() {
    var state = getSearchState(cm);
    var cursor = getSearchCursor(cm, state.query, rev ? state.posFrom : state.posTo);
    if (!cursor.find(rev)) {
      cursor = getSearchCursor(cm, state.query, rev ? CodeMirror.Pos(cm.lastLine()) : CodeMirror.Pos(cm.firstLine(), 0));
      if (!cursor.find(rev)) return;
    }
    cm.setSelection(cursor.from(), cursor.to());
    cm.scrollIntoView({from: cursor.from(), to: cursor.to()}, 20);
    state.posFrom = cursor.from(); state.posTo = cursor.to();
    if (callback) callback(cursor.from(), cursor.to())
  });}

  function clearSearch(cm) {cm.operation(function() {
    var state = getSearchState(cm);
    state.lastQuery = state.query;
    if (!state.query) return;
    state.query = state.queryText = null;
    cm.removeOverlay(state.overlay);
    if (state.annotate) { state.annotate.clear(); state.annotate = null; }
  });}

  var replaceQueryDialog =
    ' <input type="text" style="width: 10em" class="CodeMirror-search-field"/> <span style="color: #888" class="CodeMirror-search-hint">(Use /re/ syntax for regexp search)</span>';
  var replacementQueryDialog = '<span class="CodeMirror-search-label">With:</span> <input type="text" style="width: 10em" class="CodeMirror-search-field"/>';
  var doReplaceConfirm = '<span class="CodeMirror-search-label">Replace?</span> <button>Yes</button> <button>No</button> <button>All</button> <button>Stop</button>';

  function replaceAll(cm, query, text) {
    cm.operation(function() {
      for (var cursor = getSearchCursor(cm, query); cursor.findNext();) {
        if (typeof query != "string") {
          var match = cm.getRange(cursor.from(), cursor.to()).match(query);
          cursor.replace(text.replace(/\$(\d)/g, function(_, i) {return match[i];}));
        } else cursor.replace(text);
      }
    });
  }

  function replace(cm, all) {
    if (cm.getOption("readOnly")) return;
    var query = cm.getSelection() || getSearchState(cm).lastQuery;
    var dialogText = '<span class="CodeMirror-search-label">' + (all ? 'Replace all:' : 'Replace:') + '</span>';
    dialog(cm, dialogText + replaceQueryDialog, dialogText, query, function(query) {
      if (!query) return;
      query = parseQuery(query);
      dialog(cm, replacementQueryDialog, "Replace with:", "", function(text) {
        text = parseString(text)
        if (all) {
          replaceAll(cm, query, text)
        } else {
          clearSearch(cm);
          var cursor = getSearchCursor(cm, query, cm.getCursor("from"));
          var advance = function() {
            var start = cursor.from(), match;
            if (!(match = cursor.findNext())) {
              cursor = getSearchCursor(cm, query);
              if (!(match = cursor.findNext()) ||
                  (start && cursor.from().line == start.line && cursor.from().ch == start.ch)) return;
            }
            cm.setSelection(cursor.from(), cursor.to());
            cm.scrollIntoView({from: cursor.from(), to: cursor.to()});
            confirmDialog(cm, doReplaceConfirm, "Replace?",
                          [function() {doReplace(match);}, advance,
                           function() {replaceAll(cm, query, text)}]);
          };
          var doReplace = function(match) {
            cursor.replace(typeof query == "string" ? text :
                           text.replace(/\$(\d)/g, function(_, i) {return match[i];}));
            advance();
          };
          advance();
        }
      });
    });
  }

  CodeMirror.commands.find = function(cm) {clearSearch(cm); doSearch(cm);};
  CodeMirror.commands.findPersistent = function(cm) {clearSearch(cm); doSearch(cm, false, true);};
  CodeMirror.commands.findPersistentNext = function(cm) {doSearch(cm, false, true, true);};
  CodeMirror.commands.findPersistentPrev = function(cm) {doSearch(cm, true, true, true);};
  CodeMirror.commands.findNext = doSearch;
  CodeMirror.commands.findPrev = function(cm) {doSearch(cm, true);};
  CodeMirror.commands.clearSearch = clearSearch;
  CodeMirror.commands.replace = replace;
  CodeMirror.commands.replaceAll = function(cm) {replace(cm, true);};
});

},{"../../lib/codemirror":65,"../dialog/dialog":53,"./searchcursor":63}],63:[function(require,module,exports){
// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: http://codemirror.net/LICENSE

(function(mod) {
  if (typeof exports == "object" && typeof module == "object") // CommonJS
    mod(require("../../lib/codemirror"))
  else if (typeof define == "function" && define.amd) // AMD
    define(["../../lib/codemirror"], mod)
  else // Plain browser env
    mod(CodeMirror)
})(function(CodeMirror) {
  "use strict"
  var Pos = CodeMirror.Pos

  function regexpFlags(regexp) {
    var flags = regexp.flags
    return flags != null ? flags : (regexp.ignoreCase ? "i" : "")
      + (regexp.global ? "g" : "")
      + (regexp.multiline ? "m" : "")
  }

  function ensureGlobal(regexp) {
    return regexp.global ? regexp : new RegExp(regexp.source, regexpFlags(regexp) + "g")
  }

  function maybeMultiline(regexp) {
    return /\\s|\\n|\n|\\W|\\D|\[\^/.test(regexp.source)
  }

  function searchRegexpForward(doc, regexp, start) {
    regexp = ensureGlobal(regexp)
    for (var line = start.line, ch = start.ch, last = doc.lastLine(); line <= last; line++, ch = 0) {
      regexp.lastIndex = ch
      var string = doc.getLine(line), match = regexp.exec(string)
      if (match)
        return {from: Pos(line, match.index),
                to: Pos(line, match.index + match[0].length),
                match: match}
    }
  }

  function searchRegexpForwardMultiline(doc, regexp, start) {
    if (!maybeMultiline(regexp)) return searchRegexpForward(doc, regexp, start)

    regexp = ensureGlobal(regexp)
    var string, chunk = 1
    for (var line = start.line, last = doc.lastLine(); line <= last;) {
      // This grows the search buffer in exponentially-sized chunks
      // between matches, so that nearby matches are fast and don't
      // require concatenating the whole document (in case we're
      // searching for something that has tons of matches), but at the
      // same time, the amount of retries is limited.
      for (var i = 0; i < chunk; i++) {
        var curLine = doc.getLine(line++)
        string = string == null ? curLine : string + "\n" + curLine
      }
      chunk = chunk * 2
      regexp.lastIndex = start.ch
      var match = regexp.exec(string)
      if (match) {
        var before = string.slice(0, match.index).split("\n"), inside = match[0].split("\n")
        var startLine = start.line + before.length - 1, startCh = before[before.length - 1].length
        return {from: Pos(startLine, startCh),
                to: Pos(startLine + inside.length - 1,
                        inside.length == 1 ? startCh + inside[0].length : inside[inside.length - 1].length),
                match: match}
      }
    }
  }

  function lastMatchIn(string, regexp) {
    var cutOff = 0, match
    for (;;) {
      regexp.lastIndex = cutOff
      var newMatch = regexp.exec(string)
      if (!newMatch) return match
      match = newMatch
      cutOff = match.index + (match[0].length || 1)
      if (cutOff == string.length) return match
    }
  }

  function searchRegexpBackward(doc, regexp, start) {
    regexp = ensureGlobal(regexp)
    for (var line = start.line, ch = start.ch, first = doc.firstLine(); line >= first; line--, ch = -1) {
      var string = doc.getLine(line)
      if (ch > -1) string = string.slice(0, ch)
      var match = lastMatchIn(string, regexp)
      if (match)
        return {from: Pos(line, match.index),
                to: Pos(line, match.index + match[0].length),
                match: match}
    }
  }

  function searchRegexpBackwardMultiline(doc, regexp, start) {
    regexp = ensureGlobal(regexp)
    var string, chunk = 1
    for (var line = start.line, first = doc.firstLine(); line >= first;) {
      for (var i = 0; i < chunk; i++) {
        var curLine = doc.getLine(line--)
        string = string == null ? curLine.slice(0, start.ch) : curLine + "\n" + string
      }
      chunk *= 2

      var match = lastMatchIn(string, regexp)
      if (match) {
        var before = string.slice(0, match.index).split("\n"), inside = match[0].split("\n")
        var startLine = line + before.length, startCh = before[before.length - 1].length
        return {from: Pos(startLine, startCh),
                to: Pos(startLine + inside.length - 1,
                        inside.length == 1 ? startCh + inside[0].length : inside[inside.length - 1].length),
                match: match}
      }
    }
  }

  var doFold, noFold
  if (String.prototype.normalize) {
    doFold = function(str) { return str.normalize("NFD").toLowerCase() }
    noFold = function(str) { return str.normalize("NFD") }
  } else {
    doFold = function(str) { return str.toLowerCase() }
    noFold = function(str) { return str }
  }

  // Maps a position in a case-folded line back to a position in the original line
  // (compensating for codepoints increasing in number during folding)
  function adjustPos(orig, folded, pos) {
    if (orig.length == folded.length) return pos
    for (var pos1 = Math.min(pos, orig.length);;) {
      var len1 = orig.slice(0, pos1).toLowerCase().length
      if (len1 < pos) ++pos1
      else if (len1 > pos) --pos1
      else return pos1
    }
  }

  function searchStringForward(doc, query, start, caseFold) {
    // Empty string would match anything and never progress, so we
    // define it to match nothing instead.
    if (!query.length) return null
    var fold = caseFold ? doFold : noFold
    var lines = fold(query).split(/\r|\n\r?/)

    search: for (var line = start.line, ch = start.ch, last = doc.lastLine() + 1 - lines.length; line <= last; line++, ch = 0) {
      var orig = doc.getLine(line).slice(ch), string = fold(orig)
      if (lines.length == 1) {
        var found = string.indexOf(lines[0])
        if (found == -1) continue search
        var start = adjustPos(orig, string, found) + ch
        return {from: Pos(line, adjustPos(orig, string, found) + ch),
                to: Pos(line, adjustPos(orig, string, found + lines[0].length) + ch)}
      } else {
        var cutFrom = string.length - lines[0].length
        if (string.slice(cutFrom) != lines[0]) continue search
        for (var i = 1; i < lines.length - 1; i++)
          if (fold(doc.getLine(line + i)) != lines[i]) continue search
        var end = doc.getLine(line + lines.length - 1), endString = fold(end), lastLine = lines[lines.length - 1]
        if (end.slice(0, lastLine.length) != lastLine) continue search
        return {from: Pos(line, adjustPos(orig, string, cutFrom) + ch),
                to: Pos(line + lines.length - 1, adjustPos(end, endString, lastLine.length))}
      }
    }
  }

  function searchStringBackward(doc, query, start, caseFold) {
    if (!query.length) return null
    var fold = caseFold ? doFold : noFold
    var lines = fold(query).split(/\r|\n\r?/)

    search: for (var line = start.line, ch = start.ch, first = doc.firstLine() - 1 + lines.length; line >= first; line--, ch = -1) {
      var orig = doc.getLine(line)
      if (ch > -1) orig = orig.slice(0, ch)
      var string = fold(orig)
      if (lines.length == 1) {
        var found = string.lastIndexOf(lines[0])
        if (found == -1) continue search
        return {from: Pos(line, adjustPos(orig, string, found)),
                to: Pos(line, adjustPos(orig, string, found + lines[0].length))}
      } else {
        var lastLine = lines[lines.length - 1]
        if (string.slice(0, lastLine.length) != lastLine) continue search
        for (var i = 1, start = line - lines.length + 1; i < lines.length - 1; i++)
          if (fold(doc.getLine(start + i)) != lines[i]) continue search
        var top = doc.getLine(line + 1 - lines.length), topString = fold(top)
        if (topString.slice(topString.length - lines[0].length) != lines[0]) continue search
        return {from: Pos(line + 1 - lines.length, adjustPos(top, topString, top.length - lines[0].length)),
                to: Pos(line, adjustPos(orig, string, lastLine.length))}
      }
    }
  }

  function SearchCursor(doc, query, pos, options) {
    this.atOccurrence = false
    this.doc = doc
    pos = pos ? doc.clipPos(pos) : Pos(0, 0)
    this.pos = {from: pos, to: pos}

    var caseFold
    if (typeof options == "object") {
      caseFold = options.caseFold
    } else { // Backwards compat for when caseFold was the 4th argument
      caseFold = options
      options = null
    }

    if (typeof query == "string") {
      if (caseFold == null) caseFold = false
      this.matches = function(reverse, pos) {
        return (reverse ? searchStringBackward : searchStringForward)(doc, query, pos, caseFold)
      }
    } else {
      query = ensureGlobal(query)
      if (!options || options.multiline !== false)
        this.matches = function(reverse, pos) {
          return (reverse ? searchRegexpBackwardMultiline : searchRegexpForwardMultiline)(doc, query, pos)
        }
      else
        this.matches = function(reverse, pos) {
          return (reverse ? searchRegexpBackward : searchRegexpForward)(doc, query, pos)
        }
    }
  }

  SearchCursor.prototype = {
    findNext: function() {return this.find(false)},
    findPrevious: function() {return this.find(true)},

    find: function(reverse) {
      var result = this.matches(reverse, this.doc.clipPos(reverse ? this.pos.from : this.pos.to))

      // Implements weird auto-growing behavior on null-matches for
      // backwards-compatiblity with the vim code (unfortunately)
      while (result && CodeMirror.cmpPos(result.from, result.to) == 0) {
        if (reverse) {
          if (result.from.ch) result.from = Pos(result.from.line, result.from.ch - 1)
          else if (result.from.line == this.doc.firstLine()) result = null
          else result = this.matches(reverse, this.doc.clipPos(Pos(result.from.line - 1)))
        } else {
          if (result.to.ch < this.doc.getLine(result.to.line).length) result.to = Pos(result.to.line, result.to.ch + 1)
          else if (result.to.line == this.doc.lastLine()) result = null
          else result = this.matches(reverse, Pos(result.to.line + 1, 0))
        }
      }

      if (result) {
        this.pos = result
        this.atOccurrence = true
        return this.pos.match || true
      } else {
        var end = Pos(reverse ? this.doc.firstLine() : this.doc.lastLine() + 1, 0)
        this.pos = {from: end, to: end}
        return this.atOccurrence = false
      }
    },

    from: function() {if (this.atOccurrence) return this.pos.from},
    to: function() {if (this.atOccurrence) return this.pos.to},

    replace: function(newText, origin) {
      if (!this.atOccurrence) return
      var lines = CodeMirror.splitLines(newText)
      this.doc.replaceRange(lines, this.pos.from, this.pos.to, origin)
      this.pos.to = Pos(this.pos.from.line + lines.length - 1,
                        lines[lines.length - 1].length + (lines.length == 1 ? this.pos.from.ch : 0))
    }
  }

  CodeMirror.defineExtension("getSearchCursor", function(query, pos, caseFold) {
    return new SearchCursor(this.doc, query, pos, caseFold)
  })
  CodeMirror.defineDocExtension("getSearchCursor", function(query, pos, caseFold) {
    return new SearchCursor(this, query, pos, caseFold)
  })

  CodeMirror.defineExtension("selectMatches", function(query, caseFold) {
    var ranges = []
    var cur = this.getSearchCursor(query, this.getCursor("from"), caseFold)
    while (cur.findNext()) {
      if (CodeMirror.cmpPos(cur.to(), this.getCursor("to")) > 0) break
      ranges.push({anchor: cur.from(), head: cur.to()})
    }
    if (ranges.length)
      this.setSelections(ranges, 0)
  })
});

},{"../../lib/codemirror":65}],64:[function(require,module,exports){
// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: http://codemirror.net/LICENSE

// A rough approximation of Sublime Text's keybindings
// Depends on addon/search/searchcursor.js and optionally addon/dialog/dialogs.js

(function(mod) {
  if (typeof exports == "object" && typeof module == "object") // CommonJS
    mod(require("../lib/codemirror"), require("../addon/search/searchcursor"), require("../addon/edit/matchbrackets"));
  else if (typeof define == "function" && define.amd) // AMD
    define(["../lib/codemirror", "../addon/search/searchcursor", "../addon/edit/matchbrackets"], mod);
  else // Plain browser env
    mod(CodeMirror);
})(function(CodeMirror) {
  "use strict";

  var map = CodeMirror.keyMap.sublime = {fallthrough: "default"};
  var cmds = CodeMirror.commands;
  var Pos = CodeMirror.Pos;
  var mac = CodeMirror.keyMap["default"] == CodeMirror.keyMap.macDefault;
  var ctrl = mac ? "Cmd-" : "Ctrl-";

  // This is not exactly Sublime's algorithm. I couldn't make heads or tails of that.
  function findPosSubword(doc, start, dir) {
    if (dir < 0 && start.ch == 0) return doc.clipPos(Pos(start.line - 1));
    var line = doc.getLine(start.line);
    if (dir > 0 && start.ch >= line.length) return doc.clipPos(Pos(start.line + 1, 0));
    var state = "start", type;
    for (var pos = start.ch, e = dir < 0 ? 0 : line.length, i = 0; pos != e; pos += dir, i++) {
      var next = line.charAt(dir < 0 ? pos - 1 : pos);
      var cat = next != "_" && CodeMirror.isWordChar(next) ? "w" : "o";
      if (cat == "w" && next.toUpperCase() == next) cat = "W";
      if (state == "start") {
        if (cat != "o") { state = "in"; type = cat; }
      } else if (state == "in") {
        if (type != cat) {
          if (type == "w" && cat == "W" && dir < 0) pos--;
          if (type == "W" && cat == "w" && dir > 0) { type = "w"; continue; }
          break;
        }
      }
    }
    return Pos(start.line, pos);
  }

  function moveSubword(cm, dir) {
    cm.extendSelectionsBy(function(range) {
      if (cm.display.shift || cm.doc.extend || range.empty())
        return findPosSubword(cm.doc, range.head, dir);
      else
        return dir < 0 ? range.from() : range.to();
    });
  }

  var goSubwordCombo = mac ? "Ctrl-" : "Alt-";

  cmds[map[goSubwordCombo + "Left"] = "goSubwordLeft"] = function(cm) { moveSubword(cm, -1); };
  cmds[map[goSubwordCombo + "Right"] = "goSubwordRight"] = function(cm) { moveSubword(cm, 1); };

  if (mac) map["Cmd-Left"] = "goLineStartSmart";

  var scrollLineCombo = mac ? "Ctrl-Alt-" : "Ctrl-";

  cmds[map[scrollLineCombo + "Up"] = "scrollLineUp"] = function(cm) {
    var info = cm.getScrollInfo();
    if (!cm.somethingSelected()) {
      var visibleBottomLine = cm.lineAtHeight(info.top + info.clientHeight, "local");
      if (cm.getCursor().line >= visibleBottomLine)
        cm.execCommand("goLineUp");
    }
    cm.scrollTo(null, info.top - cm.defaultTextHeight());
  };
  cmds[map[scrollLineCombo + "Down"] = "scrollLineDown"] = function(cm) {
    var info = cm.getScrollInfo();
    if (!cm.somethingSelected()) {
      var visibleTopLine = cm.lineAtHeight(info.top, "local")+1;
      if (cm.getCursor().line <= visibleTopLine)
        cm.execCommand("goLineDown");
    }
    cm.scrollTo(null, info.top + cm.defaultTextHeight());
  };

  cmds[map["Shift-" + ctrl + "L"] = "splitSelectionByLine"] = function(cm) {
    var ranges = cm.listSelections(), lineRanges = [];
    for (var i = 0; i < ranges.length; i++) {
      var from = ranges[i].from(), to = ranges[i].to();
      for (var line = from.line; line <= to.line; ++line)
        if (!(to.line > from.line && line == to.line && to.ch == 0))
          lineRanges.push({anchor: line == from.line ? from : Pos(line, 0),
                           head: line == to.line ? to : Pos(line)});
    }
    cm.setSelections(lineRanges, 0);
  };

  map["Shift-Tab"] = "indentLess";

  cmds[map["Esc"] = "singleSelectionTop"] = function(cm) {
    var range = cm.listSelections()[0];
    cm.setSelection(range.anchor, range.head, {scroll: false});
  };

  cmds[map[ctrl + "L"] = "selectLine"] = function(cm) {
    var ranges = cm.listSelections(), extended = [];
    for (var i = 0; i < ranges.length; i++) {
      var range = ranges[i];
      extended.push({anchor: Pos(range.from().line, 0),
                     head: Pos(range.to().line + 1, 0)});
    }
    cm.setSelections(extended);
  };

  map["Shift-Ctrl-K"] = "deleteLine";

  function insertLine(cm, above) {
    if (cm.isReadOnly()) return CodeMirror.Pass
    cm.operation(function() {
      var len = cm.listSelections().length, newSelection = [], last = -1;
      for (var i = 0; i < len; i++) {
        var head = cm.listSelections()[i].head;
        if (head.line <= last) continue;
        var at = Pos(head.line + (above ? 0 : 1), 0);
        cm.replaceRange("\n", at, null, "+insertLine");
        cm.indentLine(at.line, null, true);
        newSelection.push({head: at, anchor: at});
        last = head.line + 1;
      }
      cm.setSelections(newSelection);
    });
    cm.execCommand("indentAuto");
  }

  cmds[map[ctrl + "Enter"] = "insertLineAfter"] = function(cm) { return insertLine(cm, false); };

  cmds[map["Shift-" + ctrl + "Enter"] = "insertLineBefore"] = function(cm) { return insertLine(cm, true); };

  function wordAt(cm, pos) {
    var start = pos.ch, end = start, line = cm.getLine(pos.line);
    while (start && CodeMirror.isWordChar(line.charAt(start - 1))) --start;
    while (end < line.length && CodeMirror.isWordChar(line.charAt(end))) ++end;
    return {from: Pos(pos.line, start), to: Pos(pos.line, end), word: line.slice(start, end)};
  }

  cmds[map[ctrl + "D"] = "selectNextOccurrence"] = function(cm) {
    var from = cm.getCursor("from"), to = cm.getCursor("to");
    var fullWord = cm.state.sublimeFindFullWord == cm.doc.sel;
    if (CodeMirror.cmpPos(from, to) == 0) {
      var word = wordAt(cm, from);
      if (!word.word) return;
      cm.setSelection(word.from, word.to);
      fullWord = true;
    } else {
      var text = cm.getRange(from, to);
      var query = fullWord ? new RegExp("\\b" + text + "\\b") : text;
      var cur = cm.getSearchCursor(query, to);
      var found = cur.findNext();
      if (!found) {
        cur = cm.getSearchCursor(query, Pos(cm.firstLine(), 0));
        found = cur.findNext();
      }
      if (!found || isSelectedRange(cm.listSelections(), cur.from(), cur.to()))
        return CodeMirror.Pass
      cm.addSelection(cur.from(), cur.to());
    }
    if (fullWord)
      cm.state.sublimeFindFullWord = cm.doc.sel;
  };

  function isSelectedRange(ranges, from, to) {
    for (var i = 0; i < ranges.length; i++)
      if (ranges[i].from() == from && ranges[i].to() == to) return true
    return false
  }

  var mirror = "(){}[]";
  function selectBetweenBrackets(cm) {
    var ranges = cm.listSelections(), newRanges = []
    for (var i = 0; i < ranges.length; i++) {
      var range = ranges[i], pos = range.head, opening = cm.scanForBracket(pos, -1);
      if (!opening) return false;
      for (;;) {
        var closing = cm.scanForBracket(pos, 1);
        if (!closing) return false;
        if (closing.ch == mirror.charAt(mirror.indexOf(opening.ch) + 1)) {
          newRanges.push({anchor: Pos(opening.pos.line, opening.pos.ch + 1),
                          head: closing.pos});
          break;
        }
        pos = Pos(closing.pos.line, closing.pos.ch + 1);
      }
    }
    cm.setSelections(newRanges);
    return true;
  }

  cmds[map["Shift-" + ctrl + "Space"] = "selectScope"] = function(cm) {
    selectBetweenBrackets(cm) || cm.execCommand("selectAll");
  };
  cmds[map["Shift-" + ctrl + "M"] = "selectBetweenBrackets"] = function(cm) {
    if (!selectBetweenBrackets(cm)) return CodeMirror.Pass;
  };

  cmds[map[ctrl + "M"] = "goToBracket"] = function(cm) {
    cm.extendSelectionsBy(function(range) {
      var next = cm.scanForBracket(range.head, 1);
      if (next && CodeMirror.cmpPos(next.pos, range.head) != 0) return next.pos;
      var prev = cm.scanForBracket(range.head, -1);
      return prev && Pos(prev.pos.line, prev.pos.ch + 1) || range.head;
    });
  };

  var swapLineCombo = mac ? "Cmd-Ctrl-" : "Shift-Ctrl-";

  cmds[map[swapLineCombo + "Up"] = "swapLineUp"] = function(cm) {
    if (cm.isReadOnly()) return CodeMirror.Pass
    var ranges = cm.listSelections(), linesToMove = [], at = cm.firstLine() - 1, newSels = [];
    for (var i = 0; i < ranges.length; i++) {
      var range = ranges[i], from = range.from().line - 1, to = range.to().line;
      newSels.push({anchor: Pos(range.anchor.line - 1, range.anchor.ch),
                    head: Pos(range.head.line - 1, range.head.ch)});
      if (range.to().ch == 0 && !range.empty()) --to;
      if (from > at) linesToMove.push(from, to);
      else if (linesToMove.length) linesToMove[linesToMove.length - 1] = to;
      at = to;
    }
    cm.operation(function() {
      for (var i = 0; i < linesToMove.length; i += 2) {
        var from = linesToMove[i], to = linesToMove[i + 1];
        var line = cm.getLine(from);
        cm.replaceRange("", Pos(from, 0), Pos(from + 1, 0), "+swapLine");
        if (to > cm.lastLine())
          cm.replaceRange("\n" + line, Pos(cm.lastLine()), null, "+swapLine");
        else
          cm.replaceRange(line + "\n", Pos(to, 0), null, "+swapLine");
      }
      cm.setSelections(newSels);
      cm.scrollIntoView();
    });
  };

  cmds[map[swapLineCombo + "Down"] = "swapLineDown"] = function(cm) {
    if (cm.isReadOnly()) return CodeMirror.Pass
    var ranges = cm.listSelections(), linesToMove = [], at = cm.lastLine() + 1;
    for (var i = ranges.length - 1; i >= 0; i--) {
      var range = ranges[i], from = range.to().line + 1, to = range.from().line;
      if (range.to().ch == 0 && !range.empty()) from--;
      if (from < at) linesToMove.push(from, to);
      else if (linesToMove.length) linesToMove[linesToMove.length - 1] = to;
      at = to;
    }
    cm.operation(function() {
      for (var i = linesToMove.length - 2; i >= 0; i -= 2) {
        var from = linesToMove[i], to = linesToMove[i + 1];
        var line = cm.getLine(from);
        if (from == cm.lastLine())
          cm.replaceRange("", Pos(from - 1), Pos(from), "+swapLine");
        else
          cm.replaceRange("", Pos(from, 0), Pos(from + 1, 0), "+swapLine");
        cm.replaceRange(line + "\n", Pos(to, 0), null, "+swapLine");
      }
      cm.scrollIntoView();
    });
  };

  cmds[map[ctrl + "/"] = "toggleCommentIndented"] = function(cm) {
    cm.toggleComment({ indent: true });
  }

  cmds[map[ctrl + "J"] = "joinLines"] = function(cm) {
    var ranges = cm.listSelections(), joined = [];
    for (var i = 0; i < ranges.length; i++) {
      var range = ranges[i], from = range.from();
      var start = from.line, end = range.to().line;
      while (i < ranges.length - 1 && ranges[i + 1].from().line == end)
        end = ranges[++i].to().line;
      joined.push({start: start, end: end, anchor: !range.empty() && from});
    }
    cm.operation(function() {
      var offset = 0, ranges = [];
      for (var i = 0; i < joined.length; i++) {
        var obj = joined[i];
        var anchor = obj.anchor && Pos(obj.anchor.line - offset, obj.anchor.ch), head;
        for (var line = obj.start; line <= obj.end; line++) {
          var actual = line - offset;
          if (line == obj.end) head = Pos(actual, cm.getLine(actual).length + 1);
          if (actual < cm.lastLine()) {
            cm.replaceRange(" ", Pos(actual), Pos(actual + 1, /^\s*/.exec(cm.getLine(actual + 1))[0].length));
            ++offset;
          }
        }
        ranges.push({anchor: anchor || head, head: head});
      }
      cm.setSelections(ranges, 0);
    });
  };

  cmds[map["Shift-" + ctrl + "D"] = "duplicateLine"] = function(cm) {
    cm.operation(function() {
      var rangeCount = cm.listSelections().length;
      for (var i = 0; i < rangeCount; i++) {
        var range = cm.listSelections()[i];
        if (range.empty())
          cm.replaceRange(cm.getLine(range.head.line) + "\n", Pos(range.head.line, 0));
        else
          cm.replaceRange(cm.getRange(range.from(), range.to()), range.from());
      }
      cm.scrollIntoView();
    });
  };

  if (!mac) map[ctrl + "T"] = "transposeChars";

  function sortLines(cm, caseSensitive) {
    if (cm.isReadOnly()) return CodeMirror.Pass
    var ranges = cm.listSelections(), toSort = [], selected;
    for (var i = 0; i < ranges.length; i++) {
      var range = ranges[i];
      if (range.empty()) continue;
      var from = range.from().line, to = range.to().line;
      while (i < ranges.length - 1 && ranges[i + 1].from().line == to)
        to = ranges[++i].to().line;
      if (!ranges[i].to().ch) to--;
      toSort.push(from, to);
    }
    if (toSort.length) selected = true;
    else toSort.push(cm.firstLine(), cm.lastLine());

    cm.operation(function() {
      var ranges = [];
      for (var i = 0; i < toSort.length; i += 2) {
        var from = toSort[i], to = toSort[i + 1];
        var start = Pos(from, 0), end = Pos(to);
        var lines = cm.getRange(start, end, false);
        if (caseSensitive)
          lines.sort();
        else
          lines.sort(function(a, b) {
            var au = a.toUpperCase(), bu = b.toUpperCase();
            if (au != bu) { a = au; b = bu; }
            return a < b ? -1 : a == b ? 0 : 1;
          });
        cm.replaceRange(lines, start, end);
        if (selected) ranges.push({anchor: start, head: Pos(to + 1, 0)});
      }
      if (selected) cm.setSelections(ranges, 0);
    });
  }

  cmds[map["F9"] = "sortLines"] = function(cm) { sortLines(cm, true); };
  cmds[map[ctrl + "F9"] = "sortLinesInsensitive"] = function(cm) { sortLines(cm, false); };

  cmds[map["F2"] = "nextBookmark"] = function(cm) {
    var marks = cm.state.sublimeBookmarks;
    if (marks) while (marks.length) {
      var current = marks.shift();
      var found = current.find();
      if (found) {
        marks.push(current);
        return cm.setSelection(found.from, found.to);
      }
    }
  };

  cmds[map["Shift-F2"] = "prevBookmark"] = function(cm) {
    var marks = cm.state.sublimeBookmarks;
    if (marks) while (marks.length) {
      marks.unshift(marks.pop());
      var found = marks[marks.length - 1].find();
      if (!found)
        marks.pop();
      else
        return cm.setSelection(found.from, found.to);
    }
  };

  cmds[map[ctrl + "F2"] = "toggleBookmark"] = function(cm) {
    var ranges = cm.listSelections();
    var marks = cm.state.sublimeBookmarks || (cm.state.sublimeBookmarks = []);
    for (var i = 0; i < ranges.length; i++) {
      var from = ranges[i].from(), to = ranges[i].to();
      var found = cm.findMarks(from, to);
      for (var j = 0; j < found.length; j++) {
        if (found[j].sublimeBookmark) {
          found[j].clear();
          for (var k = 0; k < marks.length; k++)
            if (marks[k] == found[j])
              marks.splice(k--, 1);
          break;
        }
      }
      if (j == found.length)
        marks.push(cm.markText(from, to, {sublimeBookmark: true, clearWhenEmpty: false}));
    }
  };

  cmds[map["Shift-" + ctrl + "F2"] = "clearBookmarks"] = function(cm) {
    var marks = cm.state.sublimeBookmarks;
    if (marks) for (var i = 0; i < marks.length; i++) marks[i].clear();
    marks.length = 0;
  };

  cmds[map["Alt-F2"] = "selectBookmarks"] = function(cm) {
    var marks = cm.state.sublimeBookmarks, ranges = [];
    if (marks) for (var i = 0; i < marks.length; i++) {
      var found = marks[i].find();
      if (!found)
        marks.splice(i--, 0);
      else
        ranges.push({anchor: found.from, head: found.to});
    }
    if (ranges.length)
      cm.setSelections(ranges, 0);
  };

  map["Alt-Q"] = "wrapLines";

  var cK = ctrl + "K ";

  function modifyWordOrSelection(cm, mod) {
    cm.operation(function() {
      var ranges = cm.listSelections(), indices = [], replacements = [];
      for (var i = 0; i < ranges.length; i++) {
        var range = ranges[i];
        if (range.empty()) { indices.push(i); replacements.push(""); }
        else replacements.push(mod(cm.getRange(range.from(), range.to())));
      }
      cm.replaceSelections(replacements, "around", "case");
      for (var i = indices.length - 1, at; i >= 0; i--) {
        var range = ranges[indices[i]];
        if (at && CodeMirror.cmpPos(range.head, at) > 0) continue;
        var word = wordAt(cm, range.head);
        at = word.from;
        cm.replaceRange(mod(word.word), word.from, word.to);
      }
    });
  }

  map[cK + ctrl + "Backspace"] = "delLineLeft";

  cmds[map["Backspace"] = "smartBackspace"] = function(cm) {
    if (cm.somethingSelected()) return CodeMirror.Pass;

    cm.operation(function() {
      var cursors = cm.listSelections();
      var indentUnit = cm.getOption("indentUnit");

      for (var i = cursors.length - 1; i >= 0; i--) {
        var cursor = cursors[i].head;
        var toStartOfLine = cm.getRange({line: cursor.line, ch: 0}, cursor);
        var column = CodeMirror.countColumn(toStartOfLine, null, cm.getOption("tabSize"));

        // Delete by one character by default
        var deletePos = cm.findPosH(cursor, -1, "char", false);

        if (toStartOfLine && !/\S/.test(toStartOfLine) && column % indentUnit == 0) {
          var prevIndent = new Pos(cursor.line,
            CodeMirror.findColumn(toStartOfLine, column - indentUnit, indentUnit));

          // Smart delete only if we found a valid prevIndent location
          if (prevIndent.ch != cursor.ch) deletePos = prevIndent;
        }

        cm.replaceRange("", deletePos, cursor, "+delete");
      }
    });
  };

  cmds[map[cK + ctrl + "K"] = "delLineRight"] = function(cm) {
    cm.operation(function() {
      var ranges = cm.listSelections();
      for (var i = ranges.length - 1; i >= 0; i--)
        cm.replaceRange("", ranges[i].anchor, Pos(ranges[i].to().line), "+delete");
      cm.scrollIntoView();
    });
  };

  cmds[map[cK + ctrl + "U"] = "upcaseAtCursor"] = function(cm) {
    modifyWordOrSelection(cm, function(str) { return str.toUpperCase(); });
  };
  cmds[map[cK + ctrl + "L"] = "downcaseAtCursor"] = function(cm) {
    modifyWordOrSelection(cm, function(str) { return str.toLowerCase(); });
  };

  cmds[map[cK + ctrl + "Space"] = "setSublimeMark"] = function(cm) {
    if (cm.state.sublimeMark) cm.state.sublimeMark.clear();
    cm.state.sublimeMark = cm.setBookmark(cm.getCursor());
  };
  cmds[map[cK + ctrl + "A"] = "selectToSublimeMark"] = function(cm) {
    var found = cm.state.sublimeMark && cm.state.sublimeMark.find();
    if (found) cm.setSelection(cm.getCursor(), found);
  };
  cmds[map[cK + ctrl + "W"] = "deleteToSublimeMark"] = function(cm) {
    var found = cm.state.sublimeMark && cm.state.sublimeMark.find();
    if (found) {
      var from = cm.getCursor(), to = found;
      if (CodeMirror.cmpPos(from, to) > 0) { var tmp = to; to = from; from = tmp; }
      cm.state.sublimeKilled = cm.getRange(from, to);
      cm.replaceRange("", from, to);
    }
  };
  cmds[map[cK + ctrl + "X"] = "swapWithSublimeMark"] = function(cm) {
    var found = cm.state.sublimeMark && cm.state.sublimeMark.find();
    if (found) {
      cm.state.sublimeMark.clear();
      cm.state.sublimeMark = cm.setBookmark(cm.getCursor());
      cm.setCursor(found);
    }
  };
  cmds[map[cK + ctrl + "Y"] = "sublimeYank"] = function(cm) {
    if (cm.state.sublimeKilled != null)
      cm.replaceSelection(cm.state.sublimeKilled, null, "paste");
  };

  map[cK + ctrl + "G"] = "clearBookmarks";
  cmds[map[cK + ctrl + "C"] = "showInCenter"] = function(cm) {
    var pos = cm.cursorCoords(null, "local");
    cm.scrollTo(null, (pos.top + pos.bottom) / 2 - cm.getScrollInfo().clientHeight / 2);
  };

  var selectLinesCombo = mac ? "Ctrl-Shift-" : "Ctrl-Alt-";
  cmds[map[selectLinesCombo + "Up"] = "selectLinesUpward"] = function(cm) {
    cm.operation(function() {
      var ranges = cm.listSelections();
      for (var i = 0; i < ranges.length; i++) {
        var range = ranges[i];
        if (range.head.line > cm.firstLine())
          cm.addSelection(Pos(range.head.line - 1, range.head.ch));
      }
    });
  };
  cmds[map[selectLinesCombo + "Down"] = "selectLinesDownward"] = function(cm) {
    cm.operation(function() {
      var ranges = cm.listSelections();
      for (var i = 0; i < ranges.length; i++) {
        var range = ranges[i];
        if (range.head.line < cm.lastLine())
          cm.addSelection(Pos(range.head.line + 1, range.head.ch));
      }
    });
  };

  function getTarget(cm) {
    var from = cm.getCursor("from"), to = cm.getCursor("to");
    if (CodeMirror.cmpPos(from, to) == 0) {
      var word = wordAt(cm, from);
      if (!word.word) return;
      from = word.from;
      to = word.to;
    }
    return {from: from, to: to, query: cm.getRange(from, to), word: word};
  }

  function findAndGoTo(cm, forward) {
    var target = getTarget(cm);
    if (!target) return;
    var query = target.query;
    var cur = cm.getSearchCursor(query, forward ? target.to : target.from);

    if (forward ? cur.findNext() : cur.findPrevious()) {
      cm.setSelection(cur.from(), cur.to());
    } else {
      cur = cm.getSearchCursor(query, forward ? Pos(cm.firstLine(), 0)
                                              : cm.clipPos(Pos(cm.lastLine())));
      if (forward ? cur.findNext() : cur.findPrevious())
        cm.setSelection(cur.from(), cur.to());
      else if (target.word)
        cm.setSelection(target.from, target.to);
    }
  };
  cmds[map[ctrl + "F3"] = "findUnder"] = function(cm) { findAndGoTo(cm, true); };
  cmds[map["Shift-" + ctrl + "F3"] = "findUnderPrevious"] = function(cm) { findAndGoTo(cm,false); };
  cmds[map["Alt-F3"] = "findAllUnder"] = function(cm) {
    var target = getTarget(cm);
    if (!target) return;
    var cur = cm.getSearchCursor(target.query);
    var matches = [];
    var primaryIndex = -1;
    while (cur.findNext()) {
      matches.push({anchor: cur.from(), head: cur.to()});
      if (cur.from().line <= target.from.line && cur.from().ch <= target.from.ch)
        primaryIndex++;
    }
    cm.setSelections(matches, primaryIndex);
  };

  map["Shift-" + ctrl + "["] = "fold";
  map["Shift-" + ctrl + "]"] = "unfold";
  map[cK + ctrl + "0"] = map[cK + ctrl + "J"] = "unfoldAll";

  map[ctrl + "I"] = "findIncremental";
  map["Shift-" + ctrl + "I"] = "findIncrementalReverse";
  map[ctrl + "H"] = "replace";
  map["F3"] = "findNext";
  map["Shift-F3"] = "findPrev";

  CodeMirror.normalizeKeyMap(map);
});

},{"../addon/edit/matchbrackets":55,"../addon/search/searchcursor":63,"../lib/codemirror":65}],65:[function(require,module,exports){
// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: http://codemirror.net/LICENSE

// This is CodeMirror (http://codemirror.net), a code editor
// implemented in JavaScript on top of the browser's DOM.
//
// You can find some technical background for some of the code below
// at http://marijnhaverbeke.nl/blog/#cm-internals .

(function (global, factory) {
	typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
	typeof define === 'function' && define.amd ? define(factory) :
	(global.CodeMirror = factory());
}(this, (function () { 'use strict';

// Kludges for bugs and behavior differences that can't be feature
// detected are enabled based on userAgent etc sniffing.
var userAgent = navigator.userAgent;
var platform = navigator.platform;

var gecko = /gecko\/\d/i.test(userAgent);
var ie_upto10 = /MSIE \d/.test(userAgent);
var ie_11up = /Trident\/(?:[7-9]|\d{2,})\..*rv:(\d+)/.exec(userAgent);
var edge = /Edge\/(\d+)/.exec(userAgent);
var ie = ie_upto10 || ie_11up || edge;
var ie_version = ie && (ie_upto10 ? document.documentMode || 6 : +(edge || ie_11up)[1]);
var webkit = !edge && /WebKit\//.test(userAgent);
var qtwebkit = webkit && /Qt\/\d+\.\d+/.test(userAgent);
var chrome = !edge && /Chrome\//.test(userAgent);
var presto = /Opera\//.test(userAgent);
var safari = /Apple Computer/.test(navigator.vendor);
var mac_geMountainLion = /Mac OS X 1\d\D([8-9]|\d\d)\D/.test(userAgent);
var phantom = /PhantomJS/.test(userAgent);

var ios = !edge && /AppleWebKit/.test(userAgent) && /Mobile\/\w+/.test(userAgent);
var android = /Android/.test(userAgent);
// This is woefully incomplete. Suggestions for alternative methods welcome.
var mobile = ios || android || /webOS|BlackBerry|Opera Mini|Opera Mobi|IEMobile/i.test(userAgent);
var mac = ios || /Mac/.test(platform);
var chromeOS = /\bCrOS\b/.test(userAgent);
var windows = /win/i.test(platform);

var presto_version = presto && userAgent.match(/Version\/(\d*\.\d*)/);
if (presto_version) { presto_version = Number(presto_version[1]); }
if (presto_version && presto_version >= 15) { presto = false; webkit = true; }
// Some browsers use the wrong event properties to signal cmd/ctrl on OS X
var flipCtrlCmd = mac && (qtwebkit || presto && (presto_version == null || presto_version < 12.11));
var captureRightClick = gecko || (ie && ie_version >= 9);

function classTest(cls) { return new RegExp("(^|\\s)" + cls + "(?:$|\\s)\\s*") }

var rmClass = function(node, cls) {
  var current = node.className;
  var match = classTest(cls).exec(current);
  if (match) {
    var after = current.slice(match.index + match[0].length);
    node.className = current.slice(0, match.index) + (after ? match[1] + after : "");
  }
};

function removeChildren(e) {
  for (var count = e.childNodes.length; count > 0; --count)
    { e.removeChild(e.firstChild); }
  return e
}

function removeChildrenAndAdd(parent, e) {
  return removeChildren(parent).appendChild(e)
}

function elt(tag, content, className, style) {
  var e = document.createElement(tag);
  if (className) { e.className = className; }
  if (style) { e.style.cssText = style; }
  if (typeof content == "string") { e.appendChild(document.createTextNode(content)); }
  else if (content) { for (var i = 0; i < content.length; ++i) { e.appendChild(content[i]); } }
  return e
}
// wrapper for elt, which removes the elt from the accessibility tree
function eltP(tag, content, className, style) {
  var e = elt(tag, content, className, style);
  e.setAttribute("role", "presentation");
  return e
}

var range;
if (document.createRange) { range = function(node, start, end, endNode) {
  var r = document.createRange();
  r.setEnd(endNode || node, end);
  r.setStart(node, start);
  return r
}; }
else { range = function(node, start, end) {
  var r = document.body.createTextRange();
  try { r.moveToElementText(node.parentNode); }
  catch(e) { return r }
  r.collapse(true);
  r.moveEnd("character", end);
  r.moveStart("character", start);
  return r
}; }

function contains(parent, child) {
  if (child.nodeType == 3) // Android browser always returns false when child is a textnode
    { child = child.parentNode; }
  if (parent.contains)
    { return parent.contains(child) }
  do {
    if (child.nodeType == 11) { child = child.host; }
    if (child == parent) { return true }
  } while (child = child.parentNode)
}

function activeElt() {
  // IE and Edge may throw an "Unspecified Error" when accessing document.activeElement.
  // IE < 10 will throw when accessed while the page is loading or in an iframe.
  // IE > 9 and Edge will throw when accessed in an iframe if document.body is unavailable.
  var activeElement;
  try {
    activeElement = document.activeElement;
  } catch(e) {
    activeElement = document.body || null;
  }
  while (activeElement && activeElement.shadowRoot && activeElement.shadowRoot.activeElement)
    { activeElement = activeElement.shadowRoot.activeElement; }
  return activeElement
}

function addClass(node, cls) {
  var current = node.className;
  if (!classTest(cls).test(current)) { node.className += (current ? " " : "") + cls; }
}
function joinClasses(a, b) {
  var as = a.split(" ");
  for (var i = 0; i < as.length; i++)
    { if (as[i] && !classTest(as[i]).test(b)) { b += " " + as[i]; } }
  return b
}

var selectInput = function(node) { node.select(); };
if (ios) // Mobile Safari apparently has a bug where select() is broken.
  { selectInput = function(node) { node.selectionStart = 0; node.selectionEnd = node.value.length; }; }
else if (ie) // Suppress mysterious IE10 errors
  { selectInput = function(node) { try { node.select(); } catch(_e) {} }; }

function bind(f) {
  var args = Array.prototype.slice.call(arguments, 1);
  return function(){return f.apply(null, args)}
}

function copyObj(obj, target, overwrite) {
  if (!target) { target = {}; }
  for (var prop in obj)
    { if (obj.hasOwnProperty(prop) && (overwrite !== false || !target.hasOwnProperty(prop)))
      { target[prop] = obj[prop]; } }
  return target
}

// Counts the column offset in a string, taking tabs into account.
// Used mostly to find indentation.
function countColumn(string, end, tabSize, startIndex, startValue) {
  if (end == null) {
    end = string.search(/[^\s\u00a0]/);
    if (end == -1) { end = string.length; }
  }
  for (var i = startIndex || 0, n = startValue || 0;;) {
    var nextTab = string.indexOf("\t", i);
    if (nextTab < 0 || nextTab >= end)
      { return n + (end - i) }
    n += nextTab - i;
    n += tabSize - (n % tabSize);
    i = nextTab + 1;
  }
}

var Delayed = function() {this.id = null;};
Delayed.prototype.set = function (ms, f) {
  clearTimeout(this.id);
  this.id = setTimeout(f, ms);
};

function indexOf(array, elt) {
  for (var i = 0; i < array.length; ++i)
    { if (array[i] == elt) { return i } }
  return -1
}

// Number of pixels added to scroller and sizer to hide scrollbar
var scrollerGap = 30;

// Returned or thrown by various protocols to signal 'I'm not
// handling this'.
var Pass = {toString: function(){return "CodeMirror.Pass"}};

// Reused option objects for setSelection & friends
var sel_dontScroll = {scroll: false};
var sel_mouse = {origin: "*mouse"};
var sel_move = {origin: "+move"};

// The inverse of countColumn -- find the offset that corresponds to
// a particular column.
function findColumn(string, goal, tabSize) {
  for (var pos = 0, col = 0;;) {
    var nextTab = string.indexOf("\t", pos);
    if (nextTab == -1) { nextTab = string.length; }
    var skipped = nextTab - pos;
    if (nextTab == string.length || col + skipped >= goal)
      { return pos + Math.min(skipped, goal - col) }
    col += nextTab - pos;
    col += tabSize - (col % tabSize);
    pos = nextTab + 1;
    if (col >= goal) { return pos }
  }
}

var spaceStrs = [""];
function spaceStr(n) {
  while (spaceStrs.length <= n)
    { spaceStrs.push(lst(spaceStrs) + " "); }
  return spaceStrs[n]
}

function lst(arr) { return arr[arr.length-1] }

function map(array, f) {
  var out = [];
  for (var i = 0; i < array.length; i++) { out[i] = f(array[i], i); }
  return out
}

function insertSorted(array, value, score) {
  var pos = 0, priority = score(value);
  while (pos < array.length && score(array[pos]) <= priority) { pos++; }
  array.splice(pos, 0, value);
}

function nothing() {}

function createObj(base, props) {
  var inst;
  if (Object.create) {
    inst = Object.create(base);
  } else {
    nothing.prototype = base;
    inst = new nothing();
  }
  if (props) { copyObj(props, inst); }
  return inst
}

var nonASCIISingleCaseWordChar = /[\u00df\u0587\u0590-\u05f4\u0600-\u06ff\u3040-\u309f\u30a0-\u30ff\u3400-\u4db5\u4e00-\u9fcc\uac00-\ud7af]/;
function isWordCharBasic(ch) {
  return /\w/.test(ch) || ch > "\x80" &&
    (ch.toUpperCase() != ch.toLowerCase() || nonASCIISingleCaseWordChar.test(ch))
}
function isWordChar(ch, helper) {
  if (!helper) { return isWordCharBasic(ch) }
  if (helper.source.indexOf("\\w") > -1 && isWordCharBasic(ch)) { return true }
  return helper.test(ch)
}

function isEmpty(obj) {
  for (var n in obj) { if (obj.hasOwnProperty(n) && obj[n]) { return false } }
  return true
}

// Extending unicode characters. A series of a non-extending char +
// any number of extending chars is treated as a single unit as far
// as editing and measuring is concerned. This is not fully correct,
// since some scripts/fonts/browsers also treat other configurations
// of code points as a group.
var extendingChars = /[\u0300-\u036f\u0483-\u0489\u0591-\u05bd\u05bf\u05c1\u05c2\u05c4\u05c5\u05c7\u0610-\u061a\u064b-\u065e\u0670\u06d6-\u06dc\u06de-\u06e4\u06e7\u06e8\u06ea-\u06ed\u0711\u0730-\u074a\u07a6-\u07b0\u07eb-\u07f3\u0816-\u0819\u081b-\u0823\u0825-\u0827\u0829-\u082d\u0900-\u0902\u093c\u0941-\u0948\u094d\u0951-\u0955\u0962\u0963\u0981\u09bc\u09be\u09c1-\u09c4\u09cd\u09d7\u09e2\u09e3\u0a01\u0a02\u0a3c\u0a41\u0a42\u0a47\u0a48\u0a4b-\u0a4d\u0a51\u0a70\u0a71\u0a75\u0a81\u0a82\u0abc\u0ac1-\u0ac5\u0ac7\u0ac8\u0acd\u0ae2\u0ae3\u0b01\u0b3c\u0b3e\u0b3f\u0b41-\u0b44\u0b4d\u0b56\u0b57\u0b62\u0b63\u0b82\u0bbe\u0bc0\u0bcd\u0bd7\u0c3e-\u0c40\u0c46-\u0c48\u0c4a-\u0c4d\u0c55\u0c56\u0c62\u0c63\u0cbc\u0cbf\u0cc2\u0cc6\u0ccc\u0ccd\u0cd5\u0cd6\u0ce2\u0ce3\u0d3e\u0d41-\u0d44\u0d4d\u0d57\u0d62\u0d63\u0dca\u0dcf\u0dd2-\u0dd4\u0dd6\u0ddf\u0e31\u0e34-\u0e3a\u0e47-\u0e4e\u0eb1\u0eb4-\u0eb9\u0ebb\u0ebc\u0ec8-\u0ecd\u0f18\u0f19\u0f35\u0f37\u0f39\u0f71-\u0f7e\u0f80-\u0f84\u0f86\u0f87\u0f90-\u0f97\u0f99-\u0fbc\u0fc6\u102d-\u1030\u1032-\u1037\u1039\u103a\u103d\u103e\u1058\u1059\u105e-\u1060\u1071-\u1074\u1082\u1085\u1086\u108d\u109d\u135f\u1712-\u1714\u1732-\u1734\u1752\u1753\u1772\u1773\u17b7-\u17bd\u17c6\u17c9-\u17d3\u17dd\u180b-\u180d\u18a9\u1920-\u1922\u1927\u1928\u1932\u1939-\u193b\u1a17\u1a18\u1a56\u1a58-\u1a5e\u1a60\u1a62\u1a65-\u1a6c\u1a73-\u1a7c\u1a7f\u1b00-\u1b03\u1b34\u1b36-\u1b3a\u1b3c\u1b42\u1b6b-\u1b73\u1b80\u1b81\u1ba2-\u1ba5\u1ba8\u1ba9\u1c2c-\u1c33\u1c36\u1c37\u1cd0-\u1cd2\u1cd4-\u1ce0\u1ce2-\u1ce8\u1ced\u1dc0-\u1de6\u1dfd-\u1dff\u200c\u200d\u20d0-\u20f0\u2cef-\u2cf1\u2de0-\u2dff\u302a-\u302f\u3099\u309a\ua66f-\ua672\ua67c\ua67d\ua6f0\ua6f1\ua802\ua806\ua80b\ua825\ua826\ua8c4\ua8e0-\ua8f1\ua926-\ua92d\ua947-\ua951\ua980-\ua982\ua9b3\ua9b6-\ua9b9\ua9bc\uaa29-\uaa2e\uaa31\uaa32\uaa35\uaa36\uaa43\uaa4c\uaab0\uaab2-\uaab4\uaab7\uaab8\uaabe\uaabf\uaac1\uabe5\uabe8\uabed\udc00-\udfff\ufb1e\ufe00-\ufe0f\ufe20-\ufe26\uff9e\uff9f]/;
function isExtendingChar(ch) { return ch.charCodeAt(0) >= 768 && extendingChars.test(ch) }

// Returns a number from the range [`0`; `str.length`] unless `pos` is outside that range.
function skipExtendingChars(str, pos, dir) {
  while ((dir < 0 ? pos > 0 : pos < str.length) && isExtendingChar(str.charAt(pos))) { pos += dir; }
  return pos
}

// Returns the value from the range [`from`; `to`] that satisfies
// `pred` and is closest to `from`. Assumes that at least `to` satisfies `pred`.
function findFirst(pred, from, to) {
  for (;;) {
    if (Math.abs(from - to) <= 1) { return pred(from) ? from : to }
    var mid = Math.floor((from + to) / 2);
    if (pred(mid)) { to = mid; }
    else { from = mid; }
  }
}

// The display handles the DOM integration, both for input reading
// and content drawing. It holds references to DOM nodes and
// display-related state.

function Display(place, doc, input) {
  var d = this;
  this.input = input;

  // Covers bottom-right square when both scrollbars are present.
  d.scrollbarFiller = elt("div", null, "CodeMirror-scrollbar-filler");
  d.scrollbarFiller.setAttribute("cm-not-content", "true");
  // Covers bottom of gutter when coverGutterNextToScrollbar is on
  // and h scrollbar is present.
  d.gutterFiller = elt("div", null, "CodeMirror-gutter-filler");
  d.gutterFiller.setAttribute("cm-not-content", "true");
  // Will contain the actual code, positioned to cover the viewport.
  d.lineDiv = eltP("div", null, "CodeMirror-code");
  // Elements are added to these to represent selection and cursors.
  d.selectionDiv = elt("div", null, null, "position: relative; z-index: 1");
  d.cursorDiv = elt("div", null, "CodeMirror-cursors");
  // A visibility: hidden element used to find the size of things.
  d.measure = elt("div", null, "CodeMirror-measure");
  // When lines outside of the viewport are measured, they are drawn in this.
  d.lineMeasure = elt("div", null, "CodeMirror-measure");
  // Wraps everything that needs to exist inside the vertically-padded coordinate system
  d.lineSpace = eltP("div", [d.measure, d.lineMeasure, d.selectionDiv, d.cursorDiv, d.lineDiv],
                    null, "position: relative; outline: none");
  var lines = eltP("div", [d.lineSpace], "CodeMirror-lines");
  // Moved around its parent to cover visible view.
  d.mover = elt("div", [lines], null, "position: relative");
  // Set to the height of the document, allowing scrolling.
  d.sizer = elt("div", [d.mover], "CodeMirror-sizer");
  d.sizerWidth = null;
  // Behavior of elts with overflow: auto and padding is
  // inconsistent across browsers. This is used to ensure the
  // scrollable area is big enough.
  d.heightForcer = elt("div", null, null, "position: absolute; height: " + scrollerGap + "px; width: 1px;");
  // Will contain the gutters, if any.
  d.gutters = elt("div", null, "CodeMirror-gutters");
  d.lineGutter = null;
  // Actual scrollable element.
  d.scroller = elt("div", [d.sizer, d.heightForcer, d.gutters], "CodeMirror-scroll");
  d.scroller.setAttribute("tabIndex", "-1");
  // The element in which the editor lives.
  d.wrapper = elt("div", [d.scrollbarFiller, d.gutterFiller, d.scroller], "CodeMirror");

  // Work around IE7 z-index bug (not perfect, hence IE7 not really being supported)
  if (ie && ie_version < 8) { d.gutters.style.zIndex = -1; d.scroller.style.paddingRight = 0; }
  if (!webkit && !(gecko && mobile)) { d.scroller.draggable = true; }

  if (place) {
    if (place.appendChild) { place.appendChild(d.wrapper); }
    else { place(d.wrapper); }
  }

  // Current rendered range (may be bigger than the view window).
  d.viewFrom = d.viewTo = doc.first;
  d.reportedViewFrom = d.reportedViewTo = doc.first;
  // Information about the rendered lines.
  d.view = [];
  d.renderedView = null;
  // Holds info about a single rendered line when it was rendered
  // for measurement, while not in view.
  d.externalMeasured = null;
  // Empty space (in pixels) above the view
  d.viewOffset = 0;
  d.lastWrapHeight = d.lastWrapWidth = 0;
  d.updateLineNumbers = null;

  d.nativeBarWidth = d.barHeight = d.barWidth = 0;
  d.scrollbarsClipped = false;

  // Used to only resize the line number gutter when necessary (when
  // the amount of lines crosses a boundary that makes its width change)
  d.lineNumWidth = d.lineNumInnerWidth = d.lineNumChars = null;
  // Set to true when a non-horizontal-scrolling line widget is
  // added. As an optimization, line widget aligning is skipped when
  // this is false.
  d.alignWidgets = false;

  d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null;

  // Tracks the maximum line length so that the horizontal scrollbar
  // can be kept static when scrolling.
  d.maxLine = null;
  d.maxLineLength = 0;
  d.maxLineChanged = false;

  // Used for measuring wheel scrolling granularity
  d.wheelDX = d.wheelDY = d.wheelStartX = d.wheelStartY = null;

  // True when shift is held down.
  d.shift = false;

  // Used to track whether anything happened since the context menu
  // was opened.
  d.selForContextMenu = null;

  d.activeTouch = null;

  input.init(d);
}

// Find the line object corresponding to the given line number.
function getLine(doc, n) {
  n -= doc.first;
  if (n < 0 || n >= doc.size) { throw new Error("There is no line " + (n + doc.first) + " in the document.") }
  var chunk = doc;
  while (!chunk.lines) {
    for (var i = 0;; ++i) {
      var child = chunk.children[i], sz = child.chunkSize();
      if (n < sz) { chunk = child; break }
      n -= sz;
    }
  }
  return chunk.lines[n]
}

// Get the part of a document between two positions, as an array of
// strings.
function getBetween(doc, start, end) {
  var out = [], n = start.line;
  doc.iter(start.line, end.line + 1, function (line) {
    var text = line.text;
    if (n == end.line) { text = text.slice(0, end.ch); }
    if (n == start.line) { text = text.slice(start.ch); }
    out.push(text);
    ++n;
  });
  return out
}
// Get the lines between from and to, as array of strings.
function getLines(doc, from, to) {
  var out = [];
  doc.iter(from, to, function (line) { out.push(line.text); }); // iter aborts when callback returns truthy value
  return out
}

// Update the height of a line, propagating the height change
// upwards to parent nodes.
function updateLineHeight(line, height) {
  var diff = height - line.height;
  if (diff) { for (var n = line; n; n = n.parent) { n.height += diff; } }
}

// Given a line object, find its line number by walking up through
// its parent links.
function lineNo(line) {
  if (line.parent == null) { return null }
  var cur = line.parent, no = indexOf(cur.lines, line);
  for (var chunk = cur.parent; chunk; cur = chunk, chunk = chunk.parent) {
    for (var i = 0;; ++i) {
      if (chunk.children[i] == cur) { break }
      no += chunk.children[i].chunkSize();
    }
  }
  return no + cur.first
}

// Find the line at the given vertical position, using the height
// information in the document tree.
function lineAtHeight(chunk, h) {
  var n = chunk.first;
  outer: do {
    for (var i$1 = 0; i$1 < chunk.children.length; ++i$1) {
      var child = chunk.children[i$1], ch = child.height;
      if (h < ch) { chunk = child; continue outer }
      h -= ch;
      n += child.chunkSize();
    }
    return n
  } while (!chunk.lines)
  var i = 0;
  for (; i < chunk.lines.length; ++i) {
    var line = chunk.lines[i], lh = line.height;
    if (h < lh) { break }
    h -= lh;
  }
  return n + i
}

function isLine(doc, l) {return l >= doc.first && l < doc.first + doc.size}

function lineNumberFor(options, i) {
  return String(options.lineNumberFormatter(i + options.firstLineNumber))
}

// A Pos instance represents a position within the text.
function Pos(line, ch, sticky) {
  if ( sticky === void 0 ) sticky = null;

  if (!(this instanceof Pos)) { return new Pos(line, ch, sticky) }
  this.line = line;
  this.ch = ch;
  this.sticky = sticky;
}

// Compare two positions, return 0 if they are the same, a negative
// number when a is less, and a positive number otherwise.
function cmp(a, b) { return a.line - b.line || a.ch - b.ch }

function equalCursorPos(a, b) { return a.sticky == b.sticky && cmp(a, b) == 0 }

function copyPos(x) {return Pos(x.line, x.ch)}
function maxPos(a, b) { return cmp(a, b) < 0 ? b : a }
function minPos(a, b) { return cmp(a, b) < 0 ? a : b }

// Most of the external API clips given positions to make sure they
// actually exist within the document.
function clipLine(doc, n) {return Math.max(doc.first, Math.min(n, doc.first + doc.size - 1))}
function clipPos(doc, pos) {
  if (pos.line < doc.first) { return Pos(doc.first, 0) }
  var last = doc.first + doc.size - 1;
  if (pos.line > last) { return Pos(last, getLine(doc, last).text.length) }
  return clipToLen(pos, getLine(doc, pos.line).text.length)
}
function clipToLen(pos, linelen) {
  var ch = pos.ch;
  if (ch == null || ch > linelen) { return Pos(pos.line, linelen) }
  else if (ch < 0) { return Pos(pos.line, 0) }
  else { return pos }
}
function clipPosArray(doc, array) {
  var out = [];
  for (var i = 0; i < array.length; i++) { out[i] = clipPos(doc, array[i]); }
  return out
}

// Optimize some code when these features are not used.
var sawReadOnlySpans = false;
var sawCollapsedSpans = false;

function seeReadOnlySpans() {
  sawReadOnlySpans = true;
}

function seeCollapsedSpans() {
  sawCollapsedSpans = true;
}

// TEXTMARKER SPANS

function MarkedSpan(marker, from, to) {
  this.marker = marker;
  this.from = from; this.to = to;
}

// Search an array of spans for a span matching the given marker.
function getMarkedSpanFor(spans, marker) {
  if (spans) { for (var i = 0; i < spans.length; ++i) {
    var span = spans[i];
    if (span.marker == marker) { return span }
  } }
}
// Remove a span from an array, returning undefined if no spans are
// left (we don't store arrays for lines without spans).
function removeMarkedSpan(spans, span) {
  var r;
  for (var i = 0; i < spans.length; ++i)
    { if (spans[i] != span) { (r || (r = [])).push(spans[i]); } }
  return r
}
// Add a span to a line.
function addMarkedSpan(line, span) {
  line.markedSpans = line.markedSpans ? line.markedSpans.concat([span]) : [span];
  span.marker.attachLine(line);
}

// Used for the algorithm that adjusts markers for a change in the
// document. These functions cut an array of spans at a given
// character position, returning an array of remaining chunks (or
// undefined if nothing remains).
function markedSpansBefore(old, startCh, isInsert) {
  var nw;
  if (old) { for (var i = 0; i < old.length; ++i) {
    var span = old[i], marker = span.marker;
    var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= startCh : span.from < startCh);
    if (startsBefore || span.from == startCh && marker.type == "bookmark" && (!isInsert || !span.marker.insertLeft)) {
      var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= startCh : span.to > startCh);(nw || (nw = [])).push(new MarkedSpan(marker, span.from, endsAfter ? null : span.to));
    }
  } }
  return nw
}
function markedSpansAfter(old, endCh, isInsert) {
  var nw;
  if (old) { for (var i = 0; i < old.length; ++i) {
    var span = old[i], marker = span.marker;
    var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= endCh : span.to > endCh);
    if (endsAfter || span.from == endCh && marker.type == "bookmark" && (!isInsert || span.marker.insertLeft)) {
      var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= endCh : span.from < endCh);(nw || (nw = [])).push(new MarkedSpan(marker, startsBefore ? null : span.from - endCh,
                                            span.to == null ? null : span.to - endCh));
    }
  } }
  return nw
}

// Given a change object, compute the new set of marker spans that
// cover the line in which the change took place. Removes spans
// entirely within the change, reconnects spans belonging to the
// same marker that appear on both sides of the change, and cuts off
// spans partially within the change. Returns an array of span
// arrays with one element for each line in (after) the change.
function stretchSpansOverChange(doc, change) {
  if (change.full) { return null }
  var oldFirst = isLine(doc, change.from.line) && getLine(doc, change.from.line).markedSpans;
  var oldLast = isLine(doc, change.to.line) && getLine(doc, change.to.line).markedSpans;
  if (!oldFirst && !oldLast) { return null }

  var startCh = change.from.ch, endCh = change.to.ch, isInsert = cmp(change.from, change.to) == 0;
  // Get the spans that 'stick out' on both sides
  var first = markedSpansBefore(oldFirst, startCh, isInsert);
  var last = markedSpansAfter(oldLast, endCh, isInsert);

  // Next, merge those two ends
  var sameLine = change.text.length == 1, offset = lst(change.text).length + (sameLine ? startCh : 0);
  if (first) {
    // Fix up .to properties of first
    for (var i = 0; i < first.length; ++i) {
      var span = first[i];
      if (span.to == null) {
        var found = getMarkedSpanFor(last, span.marker);
        if (!found) { span.to = startCh; }
        else if (sameLine) { span.to = found.to == null ? null : found.to + offset; }
      }
    }
  }
  if (last) {
    // Fix up .from in last (or move them into first in case of sameLine)
    for (var i$1 = 0; i$1 < last.length; ++i$1) {
      var span$1 = last[i$1];
      if (span$1.to != null) { span$1.to += offset; }
      if (span$1.from == null) {
        var found$1 = getMarkedSpanFor(first, span$1.marker);
        if (!found$1) {
          span$1.from = offset;
          if (sameLine) { (first || (first = [])).push(span$1); }
        }
      } else {
        span$1.from += offset;
        if (sameLine) { (first || (first = [])).push(span$1); }
      }
    }
  }
  // Make sure we didn't create any zero-length spans
  if (first) { first = clearEmptySpans(first); }
  if (last && last != first) { last = clearEmptySpans(last); }

  var newMarkers = [first];
  if (!sameLine) {
    // Fill gap with whole-line-spans
    var gap = change.text.length - 2, gapMarkers;
    if (gap > 0 && first)
      { for (var i$2 = 0; i$2 < first.length; ++i$2)
        { if (first[i$2].to == null)
          { (gapMarkers || (gapMarkers = [])).push(new MarkedSpan(first[i$2].marker, null, null)); } } }
    for (var i$3 = 0; i$3 < gap; ++i$3)
      { newMarkers.push(gapMarkers); }
    newMarkers.push(last);
  }
  return newMarkers
}

// Remove spans that are empty and don't have a clearWhenEmpty
// option of false.
function clearEmptySpans(spans) {
  for (var i = 0; i < spans.length; ++i) {
    var span = spans[i];
    if (span.from != null && span.from == span.to && span.marker.clearWhenEmpty !== false)
      { spans.splice(i--, 1); }
  }
  if (!spans.length) { return null }
  return spans
}

// Used to 'clip' out readOnly ranges when making a change.
function removeReadOnlyRanges(doc, from, to) {
  var markers = null;
  doc.iter(from.line, to.line + 1, function (line) {
    if (line.markedSpans) { for (var i = 0; i < line.markedSpans.length; ++i) {
      var mark = line.markedSpans[i].marker;
      if (mark.readOnly && (!markers || indexOf(markers, mark) == -1))
        { (markers || (markers = [])).push(mark); }
    } }
  });
  if (!markers) { return null }
  var parts = [{from: from, to: to}];
  for (var i = 0; i < markers.length; ++i) {
    var mk = markers[i], m = mk.find(0);
    for (var j = 0; j < parts.length; ++j) {
      var p = parts[j];
      if (cmp(p.to, m.from) < 0 || cmp(p.from, m.to) > 0) { continue }
      var newParts = [j, 1], dfrom = cmp(p.from, m.from), dto = cmp(p.to, m.to);
      if (dfrom < 0 || !mk.inclusiveLeft && !dfrom)
        { newParts.push({from: p.from, to: m.from}); }
      if (dto > 0 || !mk.inclusiveRight && !dto)
        { newParts.push({from: m.to, to: p.to}); }
      parts.splice.apply(parts, newParts);
      j += newParts.length - 3;
    }
  }
  return parts
}

// Connect or disconnect spans from a line.
function detachMarkedSpans(line) {
  var spans = line.markedSpans;
  if (!spans) { return }
  for (var i = 0; i < spans.length; ++i)
    { spans[i].marker.detachLine(line); }
  line.markedSpans = null;
}
function attachMarkedSpans(line, spans) {
  if (!spans) { return }
  for (var i = 0; i < spans.length; ++i)
    { spans[i].marker.attachLine(line); }
  line.markedSpans = spans;
}

// Helpers used when computing which overlapping collapsed span
// counts as the larger one.
function extraLeft(marker) { return marker.inclusiveLeft ? -1 : 0 }
function extraRight(marker) { return marker.inclusiveRight ? 1 : 0 }

// Returns a number indicating which of two overlapping collapsed
// spans is larger (and thus includes the other). Falls back to
// comparing ids when the spans cover exactly the same range.
function compareCollapsedMarkers(a, b) {
  var lenDiff = a.lines.length - b.lines.length;
  if (lenDiff != 0) { return lenDiff }
  var aPos = a.find(), bPos = b.find();
  var fromCmp = cmp(aPos.from, bPos.from) || extraLeft(a) - extraLeft(b);
  if (fromCmp) { return -fromCmp }
  var toCmp = cmp(aPos.to, bPos.to) || extraRight(a) - extraRight(b);
  if (toCmp) { return toCmp }
  return b.id - a.id
}

// Find out whether a line ends or starts in a collapsed span. If
// so, return the marker for that span.
function collapsedSpanAtSide(line, start) {
  var sps = sawCollapsedSpans && line.markedSpans, found;
  if (sps) { for (var sp = (void 0), i = 0; i < sps.length; ++i) {
    sp = sps[i];
    if (sp.marker.collapsed && (start ? sp.from : sp.to) == null &&
        (!found || compareCollapsedMarkers(found, sp.marker) < 0))
      { found = sp.marker; }
  } }
  return found
}
function collapsedSpanAtStart(line) { return collapsedSpanAtSide(line, true) }
function collapsedSpanAtEnd(line) { return collapsedSpanAtSide(line, false) }

// Test whether there exists a collapsed span that partially
// overlaps (covers the start or end, but not both) of a new span.
// Such overlap is not allowed.
function conflictingCollapsedRange(doc, lineNo$$1, from, to, marker) {
  var line = getLine(doc, lineNo$$1);
  var sps = sawCollapsedSpans && line.markedSpans;
  if (sps) { for (var i = 0; i < sps.length; ++i) {
    var sp = sps[i];
    if (!sp.marker.collapsed) { continue }
    var found = sp.marker.find(0);
    var fromCmp = cmp(found.from, from) || extraLeft(sp.marker) - extraLeft(marker);
    var toCmp = cmp(found.to, to) || extraRight(sp.marker) - extraRight(marker);
    if (fromCmp >= 0 && toCmp <= 0 || fromCmp <= 0 && toCmp >= 0) { continue }
    if (fromCmp <= 0 && (sp.marker.inclusiveRight && marker.inclusiveLeft ? cmp(found.to, from) >= 0 : cmp(found.to, from) > 0) ||
        fromCmp >= 0 && (sp.marker.inclusiveRight && marker.inclusiveLeft ? cmp(found.from, to) <= 0 : cmp(found.from, to) < 0))
      { return true }
  } }
}

// A visual line is a line as drawn on the screen. Folding, for
// example, can cause multiple logical lines to appear on the same
// visual line. This finds the start of the visual line that the
// given line is part of (usually that is the line itself).
function visualLine(line) {
  var merged;
  while (merged = collapsedSpanAtStart(line))
    { line = merged.find(-1, true).line; }
  return line
}

function visualLineEnd(line) {
  var merged;
  while (merged = collapsedSpanAtEnd(line))
    { line = merged.find(1, true).line; }
  return line
}

// Returns an array of logical lines that continue the visual line
// started by the argument, or undefined if there are no such lines.
function visualLineContinued(line) {
  var merged, lines;
  while (merged = collapsedSpanAtEnd(line)) {
    line = merged.find(1, true).line
    ;(lines || (lines = [])).push(line);
  }
  return lines
}

// Get the line number of the start of the visual line that the
// given line number is part of.
function visualLineNo(doc, lineN) {
  var line = getLine(doc, lineN), vis = visualLine(line);
  if (line == vis) { return lineN }
  return lineNo(vis)
}

// Get the line number of the start of the next visual line after
// the given line.
function visualLineEndNo(doc, lineN) {
  if (lineN > doc.lastLine()) { return lineN }
  var line = getLine(doc, lineN), merged;
  if (!lineIsHidden(doc, line)) { return lineN }
  while (merged = collapsedSpanAtEnd(line))
    { line = merged.find(1, true).line; }
  return lineNo(line) + 1
}

// Compute whether a line is hidden. Lines count as hidden when they
// are part of a visual line that starts with another line, or when
// they are entirely covered by collapsed, non-widget span.
function lineIsHidden(doc, line) {
  var sps = sawCollapsedSpans && line.markedSpans;
  if (sps) { for (var sp = (void 0), i = 0; i < sps.length; ++i) {
    sp = sps[i];
    if (!sp.marker.collapsed) { continue }
    if (sp.from == null) { return true }
    if (sp.marker.widgetNode) { continue }
    if (sp.from == 0 && sp.marker.inclusiveLeft && lineIsHiddenInner(doc, line, sp))
      { return true }
  } }
}
function lineIsHiddenInner(doc, line, span) {
  if (span.to == null) {
    var end = span.marker.find(1, true);
    return lineIsHiddenInner(doc, end.line, getMarkedSpanFor(end.line.markedSpans, span.marker))
  }
  if (span.marker.inclusiveRight && span.to == line.text.length)
    { return true }
  for (var sp = (void 0), i = 0; i < line.markedSpans.length; ++i) {
    sp = line.markedSpans[i];
    if (sp.marker.collapsed && !sp.marker.widgetNode && sp.from == span.to &&
        (sp.to == null || sp.to != span.from) &&
        (sp.marker.inclusiveLeft || span.marker.inclusiveRight) &&
        lineIsHiddenInner(doc, line, sp)) { return true }
  }
}

// Find the height above the given line.
function heightAtLine(lineObj) {
  lineObj = visualLine(lineObj);

  var h = 0, chunk = lineObj.parent;
  for (var i = 0; i < chunk.lines.length; ++i) {
    var line = chunk.lines[i];
    if (line == lineObj) { break }
    else { h += line.height; }
  }
  for (var p = chunk.parent; p; chunk = p, p = chunk.parent) {
    for (var i$1 = 0; i$1 < p.children.length; ++i$1) {
      var cur = p.children[i$1];
      if (cur == chunk) { break }
      else { h += cur.height; }
    }
  }
  return h
}

// Compute the character length of a line, taking into account
// collapsed ranges (see markText) that might hide parts, and join
// other lines onto it.
function lineLength(line) {
  if (line.height == 0) { return 0 }
  var len = line.text.length, merged, cur = line;
  while (merged = collapsedSpanAtStart(cur)) {
    var found = merged.find(0, true);
    cur = found.from.line;
    len += found.from.ch - found.to.ch;
  }
  cur = line;
  while (merged = collapsedSpanAtEnd(cur)) {
    var found$1 = merged.find(0, true);
    len -= cur.text.length - found$1.from.ch;
    cur = found$1.to.line;
    len += cur.text.length - found$1.to.ch;
  }
  return len
}

// Find the longest line in the document.
function findMaxLine(cm) {
  var d = cm.display, doc = cm.doc;
  d.maxLine = getLine(doc, doc.first);
  d.maxLineLength = lineLength(d.maxLine);
  d.maxLineChanged = true;
  doc.iter(function (line) {
    var len = lineLength(line);
    if (len > d.maxLineLength) {
      d.maxLineLength = len;
      d.maxLine = line;
    }
  });
}

// BIDI HELPERS

function iterateBidiSections(order, from, to, f) {
  if (!order) { return f(from, to, "ltr") }
  var found = false;
  for (var i = 0; i < order.length; ++i) {
    var part = order[i];
    if (part.from < to && part.to > from || from == to && part.to == from) {
      f(Math.max(part.from, from), Math.min(part.to, to), part.level == 1 ? "rtl" : "ltr");
      found = true;
    }
  }
  if (!found) { f(from, to, "ltr"); }
}

var bidiOther = null;
function getBidiPartAt(order, ch, sticky) {
  var found;
  bidiOther = null;
  for (var i = 0; i < order.length; ++i) {
    var cur = order[i];
    if (cur.from < ch && cur.to > ch) { return i }
    if (cur.to == ch) {
      if (cur.from != cur.to && sticky == "before") { found = i; }
      else { bidiOther = i; }
    }
    if (cur.from == ch) {
      if (cur.from != cur.to && sticky != "before") { found = i; }
      else { bidiOther = i; }
    }
  }
  return found != null ? found : bidiOther
}

// Bidirectional ordering algorithm
// See http://unicode.org/reports/tr9/tr9-13.html for the algorithm
// that this (partially) implements.

// One-char codes used for character types:
// L (L):   Left-to-Right
// R (R):   Right-to-Left
// r (AL):  Right-to-Left Arabic
// 1 (EN):  European Number
// + (ES):  European Number Separator
// % (ET):  European Number Terminator
// n (AN):  Arabic Number
// , (CS):  Common Number Separator
// m (NSM): Non-Spacing Mark
// b (BN):  Boundary Neutral
// s (B):   Paragraph Separator
// t (S):   Segment Separator
// w (WS):  Whitespace
// N (ON):  Other Neutrals

// Returns null if characters are ordered as they appear
// (left-to-right), or an array of sections ({from, to, level}
// objects) in the order in which they occur visually.
var bidiOrdering = (function() {
  // Character types for codepoints 0 to 0xff
  var lowTypes = "bbbbbbbbbtstwsbbbbbbbbbbbbbbssstwNN%%%NNNNNN,N,N1111111111NNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNbbbbbbsbbbbbbbbbbbbbbbbbbbbbbbbbb,N%%%%NNNNLNNNNN%%11NLNNN1LNNNNNLLLLLLLLLLLLLLLLLLLLLLLNLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLN";
  // Character types for codepoints 0x600 to 0x6f9
  var arabicTypes = "nnnnnnNNr%%r,rNNmmmmmmmmmmmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmmmmmmmmnnnnnnnnnn%nnrrrmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmnNmmmmmmrrmmNmmmmrr1111111111";
  function charType(code) {
    if (code <= 0xf7) { return lowTypes.charAt(code) }
    else if (0x590 <= code && code <= 0x5f4) { return "R" }
    else if (0x600 <= code && code <= 0x6f9) { return arabicTypes.charAt(code - 0x600) }
    else if (0x6ee <= code && code <= 0x8ac) { return "r" }
    else if (0x2000 <= code && code <= 0x200b) { return "w" }
    else if (code == 0x200c) { return "b" }
    else { return "L" }
  }

  var bidiRE = /[\u0590-\u05f4\u0600-\u06ff\u0700-\u08ac]/;
  var isNeutral = /[stwN]/, isStrong = /[LRr]/, countsAsLeft = /[Lb1n]/, countsAsNum = /[1n]/;

  function BidiSpan(level, from, to) {
    this.level = level;
    this.from = from; this.to = to;
  }

  return function(str, direction) {
    var outerType = direction == "ltr" ? "L" : "R";

    if (str.length == 0 || direction == "ltr" && !bidiRE.test(str)) { return false }
    var len = str.length, types = [];
    for (var i = 0; i < len; ++i)
      { types.push(charType(str.charCodeAt(i))); }

    // W1. Examine each non-spacing mark (NSM) in the level run, and
    // change the type of the NSM to the type of the previous
    // character. If the NSM is at the start of the level run, it will
    // get the type of sor.
    for (var i$1 = 0, prev = outerType; i$1 < len; ++i$1) {
      var type = types[i$1];
      if (type == "m") { types[i$1] = prev; }
      else { prev = type; }
    }

    // W2. Search backwards from each instance of a European number
    // until the first strong type (R, L, AL, or sor) is found. If an
    // AL is found, change the type of the European number to Arabic
    // number.
    // W3. Change all ALs to R.
    for (var i$2 = 0, cur = outerType; i$2 < len; ++i$2) {
      var type$1 = types[i$2];
      if (type$1 == "1" && cur == "r") { types[i$2] = "n"; }
      else if (isStrong.test(type$1)) { cur = type$1; if (type$1 == "r") { types[i$2] = "R"; } }
    }

    // W4. A single European separator between two European numbers
    // changes to a European number. A single common separator between
    // two numbers of the same type changes to that type.
    for (var i$3 = 1, prev$1 = types[0]; i$3 < len - 1; ++i$3) {
      var type$2 = types[i$3];
      if (type$2 == "+" && prev$1 == "1" && types[i$3+1] == "1") { types[i$3] = "1"; }
      else if (type$2 == "," && prev$1 == types[i$3+1] &&
               (prev$1 == "1" || prev$1 == "n")) { types[i$3] = prev$1; }
      prev$1 = type$2;
    }

    // W5. A sequence of European terminators adjacent to European
    // numbers changes to all European numbers.
    // W6. Otherwise, separators and terminators change to Other
    // Neutral.
    for (var i$4 = 0; i$4 < len; ++i$4) {
      var type$3 = types[i$4];
      if (type$3 == ",") { types[i$4] = "N"; }
      else if (type$3 == "%") {
        var end = (void 0);
        for (end = i$4 + 1; end < len && types[end] == "%"; ++end) {}
        var replace = (i$4 && types[i$4-1] == "!") || (end < len && types[end] == "1") ? "1" : "N";
        for (var j = i$4; j < end; ++j) { types[j] = replace; }
        i$4 = end - 1;
      }
    }

    // W7. Search backwards from each instance of a European number
    // until the first strong type (R, L, or sor) is found. If an L is
    // found, then change the type of the European number to L.
    for (var i$5 = 0, cur$1 = outerType; i$5 < len; ++i$5) {
      var type$4 = types[i$5];
      if (cur$1 == "L" && type$4 == "1") { types[i$5] = "L"; }
      else if (isStrong.test(type$4)) { cur$1 = type$4; }
    }

    // N1. A sequence of neutrals takes the direction of the
    // surrounding strong text if the text on both sides has the same
    // direction. European and Arabic numbers act as if they were R in
    // terms of their influence on neutrals. Start-of-level-run (sor)
    // and end-of-level-run (eor) are used at level run boundaries.
    // N2. Any remaining neutrals take the embedding direction.
    for (var i$6 = 0; i$6 < len; ++i$6) {
      if (isNeutral.test(types[i$6])) {
        var end$1 = (void 0);
        for (end$1 = i$6 + 1; end$1 < len && isNeutral.test(types[end$1]); ++end$1) {}
        var before = (i$6 ? types[i$6-1] : outerType) == "L";
        var after = (end$1 < len ? types[end$1] : outerType) == "L";
        var replace$1 = before == after ? (before ? "L" : "R") : outerType;
        for (var j$1 = i$6; j$1 < end$1; ++j$1) { types[j$1] = replace$1; }
        i$6 = end$1 - 1;
      }
    }

    // Here we depart from the documented algorithm, in order to avoid
    // building up an actual levels array. Since there are only three
    // levels (0, 1, 2) in an implementation that doesn't take
    // explicit embedding into account, we can build up the order on
    // the fly, without following the level-based algorithm.
    var order = [], m;
    for (var i$7 = 0; i$7 < len;) {
      if (countsAsLeft.test(types[i$7])) {
        var start = i$7;
        for (++i$7; i$7 < len && countsAsLeft.test(types[i$7]); ++i$7) {}
        order.push(new BidiSpan(0, start, i$7));
      } else {
        var pos = i$7, at = order.length;
        for (++i$7; i$7 < len && types[i$7] != "L"; ++i$7) {}
        for (var j$2 = pos; j$2 < i$7;) {
          if (countsAsNum.test(types[j$2])) {
            if (pos < j$2) { order.splice(at, 0, new BidiSpan(1, pos, j$2)); }
            var nstart = j$2;
            for (++j$2; j$2 < i$7 && countsAsNum.test(types[j$2]); ++j$2) {}
            order.splice(at, 0, new BidiSpan(2, nstart, j$2));
            pos = j$2;
          } else { ++j$2; }
        }
        if (pos < i$7) { order.splice(at, 0, new BidiSpan(1, pos, i$7)); }
      }
    }
    if (order[0].level == 1 && (m = str.match(/^\s+/))) {
      order[0].from = m[0].length;
      order.unshift(new BidiSpan(0, 0, m[0].length));
    }
    if (lst(order).level == 1 && (m = str.match(/\s+$/))) {
      lst(order).to -= m[0].length;
      order.push(new BidiSpan(0, len - m[0].length, len));
    }

    return direction == "rtl" ? order.reverse() : order
  }
})();

// Get the bidi ordering for the given line (and cache it). Returns
// false for lines that are fully left-to-right, and an array of
// BidiSpan objects otherwise.
function getOrder(line, direction) {
  var order = line.order;
  if (order == null) { order = line.order = bidiOrdering(line.text, direction); }
  return order
}

function moveCharLogically(line, ch, dir) {
  var target = skipExtendingChars(line.text, ch + dir, dir);
  return target < 0 || target > line.text.length ? null : target
}

function moveLogically(line, start, dir) {
  var ch = moveCharLogically(line, start.ch, dir);
  return ch == null ? null : new Pos(start.line, ch, dir < 0 ? "after" : "before")
}

function endOfLine(visually, cm, lineObj, lineNo, dir) {
  if (visually) {
    var order = getOrder(lineObj, cm.doc.direction);
    if (order) {
      var part = dir < 0 ? lst(order) : order[0];
      var moveInStorageOrder = (dir < 0) == (part.level == 1);
      var sticky = moveInStorageOrder ? "after" : "before";
      var ch;
      // With a wrapped rtl chunk (possibly spanning multiple bidi parts),
      // it could be that the last bidi part is not on the last visual line,
      // since visual lines contain content order-consecutive chunks.
      // Thus, in rtl, we are looking for the first (content-order) character
      // in the rtl chunk that is on the last line (that is, the same line
      // as the last (content-order) character).
      if (part.level > 0) {
        var prep = prepareMeasureForLine(cm, lineObj);
        ch = dir < 0 ? lineObj.text.length - 1 : 0;
        var targetTop = measureCharPrepared(cm, prep, ch).top;
        ch = findFirst(function (ch) { return measureCharPrepared(cm, prep, ch).top == targetTop; }, (dir < 0) == (part.level == 1) ? part.from : part.to - 1, ch);
        if (sticky == "before") { ch = moveCharLogically(lineObj, ch, 1); }
      } else { ch = dir < 0 ? part.to : part.from; }
      return new Pos(lineNo, ch, sticky)
    }
  }
  return new Pos(lineNo, dir < 0 ? lineObj.text.length : 0, dir < 0 ? "before" : "after")
}

function moveVisually(cm, line, start, dir) {
  var bidi = getOrder(line, cm.doc.direction);
  if (!bidi) { return moveLogically(line, start, dir) }
  if (start.ch >= line.text.length) {
    start.ch = line.text.length;
    start.sticky = "before";
  } else if (start.ch <= 0) {
    start.ch = 0;
    start.sticky = "after";
  }
  var partPos = getBidiPartAt(bidi, start.ch, start.sticky), part = bidi[partPos];
  if (cm.doc.direction == "ltr" && part.level % 2 == 0 && (dir > 0 ? part.to > start.ch : part.from < start.ch)) {
    // Case 1: We move within an ltr part in an ltr editor. Even with wrapped lines,
    // nothing interesting happens.
    return moveLogically(line, start, dir)
  }

  var mv = function (pos, dir) { return moveCharLogically(line, pos instanceof Pos ? pos.ch : pos, dir); };
  var prep;
  var getWrappedLineExtent = function (ch) {
    if (!cm.options.lineWrapping) { return {begin: 0, end: line.text.length} }
    prep = prep || prepareMeasureForLine(cm, line);
    return wrappedLineExtentChar(cm, line, prep, ch)
  };
  var wrappedLineExtent = getWrappedLineExtent(start.sticky == "before" ? mv(start, -1) : start.ch);

  if (cm.doc.direction == "rtl" || part.level == 1) {
    var moveInStorageOrder = (part.level == 1) == (dir < 0);
    var ch = mv(start, moveInStorageOrder ? 1 : -1);
    if (ch != null && (!moveInStorageOrder ? ch >= part.from && ch >= wrappedLineExtent.begin : ch <= part.to && ch <= wrappedLineExtent.end)) {
      // Case 2: We move within an rtl part or in an rtl editor on the same visual line
      var sticky = moveInStorageOrder ? "before" : "after";
      return new Pos(start.line, ch, sticky)
    }
  }

  // Case 3: Could not move within this bidi part in this visual line, so leave
  // the current bidi part

  var searchInVisualLine = function (partPos, dir, wrappedLineExtent) {
    var getRes = function (ch, moveInStorageOrder) { return moveInStorageOrder
      ? new Pos(start.line, mv(ch, 1), "before")
      : new Pos(start.line, ch, "after"); };

    for (; partPos >= 0 && partPos < bidi.length; partPos += dir) {
      var part = bidi[partPos];
      var moveInStorageOrder = (dir > 0) == (part.level != 1);
      var ch = moveInStorageOrder ? wrappedLineExtent.begin : mv(wrappedLineExtent.end, -1);
      if (part.from <= ch && ch < part.to) { return getRes(ch, moveInStorageOrder) }
      ch = moveInStorageOrder ? part.from : mv(part.to, -1);
      if (wrappedLineExtent.begin <= ch && ch < wrappedLineExtent.end) { return getRes(ch, moveInStorageOrder) }
    }
  };

  // Case 3a: Look for other bidi parts on the same visual line
  var res = searchInVisualLine(partPos + dir, dir, wrappedLineExtent);
  if (res) { return res }

  // Case 3b: Look for other bidi parts on the next visual line
  var nextCh = dir > 0 ? wrappedLineExtent.end : mv(wrappedLineExtent.begin, -1);
  if (nextCh != null && !(dir > 0 && nextCh == line.text.length)) {
    res = searchInVisualLine(dir > 0 ? 0 : bidi.length - 1, dir, getWrappedLineExtent(nextCh));
    if (res) { return res }
  }

  // Case 4: Nowhere to move
  return null
}

// EVENT HANDLING

// Lightweight event framework. on/off also work on DOM nodes,
// registering native DOM handlers.

var noHandlers = [];

var on = function(emitter, type, f) {
  if (emitter.addEventListener) {
    emitter.addEventListener(type, f, false);
  } else if (emitter.attachEvent) {
    emitter.attachEvent("on" + type, f);
  } else {
    var map$$1 = emitter._handlers || (emitter._handlers = {});
    map$$1[type] = (map$$1[type] || noHandlers).concat(f);
  }
};

function getHandlers(emitter, type) {
  return emitter._handlers && emitter._handlers[type] || noHandlers
}

function off(emitter, type, f) {
  if (emitter.removeEventListener) {
    emitter.removeEventListener(type, f, false);
  } else if (emitter.detachEvent) {
    emitter.detachEvent("on" + type, f);
  } else {
    var map$$1 = emitter._handlers, arr = map$$1 && map$$1[type];
    if (arr) {
      var index = indexOf(arr, f);
      if (index > -1)
        { map$$1[type] = arr.slice(0, index).concat(arr.slice(index + 1)); }
    }
  }
}

function signal(emitter, type /*, values...*/) {
  var handlers = getHandlers(emitter, type);
  if (!handlers.length) { return }
  var args = Array.prototype.slice.call(arguments, 2);
  for (var i = 0; i < handlers.length; ++i) { handlers[i].apply(null, args); }
}

// The DOM events that CodeMirror handles can be overridden by
// registering a (non-DOM) handler on the editor for the event name,
// and preventDefault-ing the event in that handler.
function signalDOMEvent(cm, e, override) {
  if (typeof e == "string")
    { e = {type: e, preventDefault: function() { this.defaultPrevented = true; }}; }
  signal(cm, override || e.type, cm, e);
  return e_defaultPrevented(e) || e.codemirrorIgnore
}

function signalCursorActivity(cm) {
  var arr = cm._handlers && cm._handlers.cursorActivity;
  if (!arr) { return }
  var set = cm.curOp.cursorActivityHandlers || (cm.curOp.cursorActivityHandlers = []);
  for (var i = 0; i < arr.length; ++i) { if (indexOf(set, arr[i]) == -1)
    { set.push(arr[i]); } }
}

function hasHandler(emitter, type) {
  return getHandlers(emitter, type).length > 0
}

// Add on and off methods to a constructor's prototype, to make
// registering events on such objects more convenient.
function eventMixin(ctor) {
  ctor.prototype.on = function(type, f) {on(this, type, f);};
  ctor.prototype.off = function(type, f) {off(this, type, f);};
}

// Due to the fact that we still support jurassic IE versions, some
// compatibility wrappers are needed.

function e_preventDefault(e) {
  if (e.preventDefault) { e.preventDefault(); }
  else { e.returnValue = false; }
}
function e_stopPropagation(e) {
  if (e.stopPropagation) { e.stopPropagation(); }
  else { e.cancelBubble = true; }
}
function e_defaultPrevented(e) {
  return e.defaultPrevented != null ? e.defaultPrevented : e.returnValue == false
}
function e_stop(e) {e_preventDefault(e); e_stopPropagation(e);}

function e_target(e) {return e.target || e.srcElement}
function e_button(e) {
  var b = e.which;
  if (b == null) {
    if (e.button & 1) { b = 1; }
    else if (e.button & 2) { b = 3; }
    else if (e.button & 4) { b = 2; }
  }
  if (mac && e.ctrlKey && b == 1) { b = 3; }
  return b
}

// Detect drag-and-drop
var dragAndDrop = function() {
  // There is *some* kind of drag-and-drop support in IE6-8, but I
  // couldn't get it to work yet.
  if (ie && ie_version < 9) { return false }
  var div = elt('div');
  return "draggable" in div || "dragDrop" in div
}();

var zwspSupported;
function zeroWidthElement(measure) {
  if (zwspSupported == null) {
    var test = elt("span", "\u200b");
    removeChildrenAndAdd(measure, elt("span", [test, document.createTextNode("x")]));
    if (measure.firstChild.offsetHeight != 0)
      { zwspSupported = test.offsetWidth <= 1 && test.offsetHeight > 2 && !(ie && ie_version < 8); }
  }
  var node = zwspSupported ? elt("span", "\u200b") :
    elt("span", "\u00a0", null, "display: inline-block; width: 1px; margin-right: -1px");
  node.setAttribute("cm-text", "");
  return node
}

// Feature-detect IE's crummy client rect reporting for bidi text
var badBidiRects;
function hasBadBidiRects(measure) {
  if (badBidiRects != null) { return badBidiRects }
  var txt = removeChildrenAndAdd(measure, document.createTextNode("A\u062eA"));
  var r0 = range(txt, 0, 1).getBoundingClientRect();
  var r1 = range(txt, 1, 2).getBoundingClientRect();
  removeChildren(measure);
  if (!r0 || r0.left == r0.right) { return false } // Safari returns null in some cases (#2780)
  return badBidiRects = (r1.right - r0.right < 3)
}

// See if "".split is the broken IE version, if so, provide an
// alternative way to split lines.
var splitLinesAuto = "\n\nb".split(/\n/).length != 3 ? function (string) {
  var pos = 0, result = [], l = string.length;
  while (pos <= l) {
    var nl = string.indexOf("\n", pos);
    if (nl == -1) { nl = string.length; }
    var line = string.slice(pos, string.charAt(nl - 1) == "\r" ? nl - 1 : nl);
    var rt = line.indexOf("\r");
    if (rt != -1) {
      result.push(line.slice(0, rt));
      pos += rt + 1;
    } else {
      result.push(line);
      pos = nl + 1;
    }
  }
  return result
} : function (string) { return string.split(/\r\n?|\n/); };

var hasSelection = window.getSelection ? function (te) {
  try { return te.selectionStart != te.selectionEnd }
  catch(e) { return false }
} : function (te) {
  var range$$1;
  try {range$$1 = te.ownerDocument.selection.createRange();}
  catch(e) {}
  if (!range$$1 || range$$1.parentElement() != te) { return false }
  return range$$1.compareEndPoints("StartToEnd", range$$1) != 0
};

var hasCopyEvent = (function () {
  var e = elt("div");
  if ("oncopy" in e) { return true }
  e.setAttribute("oncopy", "return;");
  return typeof e.oncopy == "function"
})();

var badZoomedRects = null;
function hasBadZoomedRects(measure) {
  if (badZoomedRects != null) { return badZoomedRects }
  var node = removeChildrenAndAdd(measure, elt("span", "x"));
  var normal = node.getBoundingClientRect();
  var fromRange = range(node, 0, 1).getBoundingClientRect();
  return badZoomedRects = Math.abs(normal.left - fromRange.left) > 1
}

// Known modes, by name and by MIME
var modes = {};
var mimeModes = {};

// Extra arguments are stored as the mode's dependencies, which is
// used by (legacy) mechanisms like loadmode.js to automatically
// load a mode. (Preferred mechanism is the require/define calls.)
function defineMode(name, mode) {
  if (arguments.length > 2)
    { mode.dependencies = Array.prototype.slice.call(arguments, 2); }
  modes[name] = mode;
}

function defineMIME(mime, spec) {
  mimeModes[mime] = spec;
}

// Given a MIME type, a {name, ...options} config object, or a name
// string, return a mode config object.
function resolveMode(spec) {
  if (typeof spec == "string" && mimeModes.hasOwnProperty(spec)) {
    spec = mimeModes[spec];
  } else if (spec && typeof spec.name == "string" && mimeModes.hasOwnProperty(spec.name)) {
    var found = mimeModes[spec.name];
    if (typeof found == "string") { found = {name: found}; }
    spec = createObj(found, spec);
    spec.name = found.name;
  } else if (typeof spec == "string" && /^[\w\-]+\/[\w\-]+\+xml$/.test(spec)) {
    return resolveMode("application/xml")
  } else if (typeof spec == "string" && /^[\w\-]+\/[\w\-]+\+json$/.test(spec)) {
    return resolveMode("application/json")
  }
  if (typeof spec == "string") { return {name: spec} }
  else { return spec || {name: "null"} }
}

// Given a mode spec (anything that resolveMode accepts), find and
// initialize an actual mode object.
function getMode(options, spec) {
  spec = resolveMode(spec);
  var mfactory = modes[spec.name];
  if (!mfactory) { return getMode(options, "text/plain") }
  var modeObj = mfactory(options, spec);
  if (modeExtensions.hasOwnProperty(spec.name)) {
    var exts = modeExtensions[spec.name];
    for (var prop in exts) {
      if (!exts.hasOwnProperty(prop)) { continue }
      if (modeObj.hasOwnProperty(prop)) { modeObj["_" + prop] = modeObj[prop]; }
      modeObj[prop] = exts[prop];
    }
  }
  modeObj.name = spec.name;
  if (spec.helperType) { modeObj.helperType = spec.helperType; }
  if (spec.modeProps) { for (var prop$1 in spec.modeProps)
    { modeObj[prop$1] = spec.modeProps[prop$1]; } }

  return modeObj
}

// This can be used to attach properties to mode objects from
// outside the actual mode definition.
var modeExtensions = {};
function extendMode(mode, properties) {
  var exts = modeExtensions.hasOwnProperty(mode) ? modeExtensions[mode] : (modeExtensions[mode] = {});
  copyObj(properties, exts);
}

function copyState(mode, state) {
  if (state === true) { return state }
  if (mode.copyState) { return mode.copyState(state) }
  var nstate = {};
  for (var n in state) {
    var val = state[n];
    if (val instanceof Array) { val = val.concat([]); }
    nstate[n] = val;
  }
  return nstate
}

// Given a mode and a state (for that mode), find the inner mode and
// state at the position that the state refers to.
function innerMode(mode, state) {
  var info;
  while (mode.innerMode) {
    info = mode.innerMode(state);
    if (!info || info.mode == mode) { break }
    state = info.state;
    mode = info.mode;
  }
  return info || {mode: mode, state: state}
}

function startState(mode, a1, a2) {
  return mode.startState ? mode.startState(a1, a2) : true
}

// STRING STREAM

// Fed to the mode parsers, provides helper functions to make
// parsers more succinct.

var StringStream = function(string, tabSize, lineOracle) {
  this.pos = this.start = 0;
  this.string = string;
  this.tabSize = tabSize || 8;
  this.lastColumnPos = this.lastColumnValue = 0;
  this.lineStart = 0;
  this.lineOracle = lineOracle;
};

StringStream.prototype.eol = function () {return this.pos >= this.string.length};
StringStream.prototype.sol = function () {return this.pos == this.lineStart};
StringStream.prototype.peek = function () {return this.string.charAt(this.pos) || undefined};
StringStream.prototype.next = function () {
  if (this.pos < this.string.length)
    { return this.string.charAt(this.pos++) }
};
StringStream.prototype.eat = function (match) {
  var ch = this.string.charAt(this.pos);
  var ok;
  if (typeof match == "string") { ok = ch == match; }
  else { ok = ch && (match.test ? match.test(ch) : match(ch)); }
  if (ok) {++this.pos; return ch}
};
StringStream.prototype.eatWhile = function (match) {
  var start = this.pos;
  while (this.eat(match)){}
  return this.pos > start
};
StringStream.prototype.eatSpace = function () {
    var this$1 = this;

  var start = this.pos;
  while (/[\s\u00a0]/.test(this.string.charAt(this.pos))) { ++this$1.pos; }
  return this.pos > start
};
StringStream.prototype.skipToEnd = function () {this.pos = this.string.length;};
StringStream.prototype.skipTo = function (ch) {
  var found = this.string.indexOf(ch, this.pos);
  if (found > -1) {this.pos = found; return true}
};
StringStream.prototype.backUp = function (n) {this.pos -= n;};
StringStream.prototype.column = function () {
  if (this.lastColumnPos < this.start) {
    this.lastColumnValue = countColumn(this.string, this.start, this.tabSize, this.lastColumnPos, this.lastColumnValue);
    this.lastColumnPos = this.start;
  }
  return this.lastColumnValue - (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0)
};
StringStream.prototype.indentation = function () {
  return countColumn(this.string, null, this.tabSize) -
    (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0)
};
StringStream.prototype.match = function (pattern, consume, caseInsensitive) {
  if (typeof pattern == "string") {
    var cased = function (str) { return caseInsensitive ? str.toLowerCase() : str; };
    var substr = this.string.substr(this.pos, pattern.length);
    if (cased(substr) == cased(pattern)) {
      if (consume !== false) { this.pos += pattern.length; }
      return true
    }
  } else {
    var match = this.string.slice(this.pos).match(pattern);
    if (match && match.index > 0) { return null }
    if (match && consume !== false) { this.pos += match[0].length; }
    return match
  }
};
StringStream.prototype.current = function (){return this.string.slice(this.start, this.pos)};
StringStream.prototype.hideFirstChars = function (n, inner) {
  this.lineStart += n;
  try { return inner() }
  finally { this.lineStart -= n; }
};
StringStream.prototype.lookAhead = function (n) {
  var oracle = this.lineOracle;
  return oracle && oracle.lookAhead(n)
};

var SavedContext = function(state, lookAhead) {
  this.state = state;
  this.lookAhead = lookAhead;
};

var Context = function(doc, state, line, lookAhead) {
  this.state = state;
  this.doc = doc;
  this.line = line;
  this.maxLookAhead = lookAhead || 0;
};

Context.prototype.lookAhead = function (n) {
  var line = this.doc.getLine(this.line + n);
  if (line != null && n > this.maxLookAhead) { this.maxLookAhead = n; }
  return line
};

Context.prototype.nextLine = function () {
  this.line++;
  if (this.maxLookAhead > 0) { this.maxLookAhead--; }
};

Context.fromSaved = function (doc, saved, line) {
  if (saved instanceof SavedContext)
    { return new Context(doc, copyState(doc.mode, saved.saved), line, saved.lookAhead) }
  else
    { return new Context(doc, copyState(doc.mode, saved), line) }
};

Context.prototype.save = function (copy) {
  var state = copy !== false ? copyState(this.doc.mode, this.state) : this.state;
  return this.maxLookAhead > 0 ? new SavedContext(state, this.maxLookAhead) : state
};


// Compute a style array (an array starting with a mode generation
// -- for invalidation -- followed by pairs of end positions and
// style strings), which is used to highlight the tokens on the
// line.
function highlightLine(cm, line, context, forceToEnd) {
  // A styles array always starts with a number identifying the
  // mode/overlays that it is based on (for easy invalidation).
  var st = [cm.state.modeGen], lineClasses = {};
  // Compute the base array of styles
  runMode(cm, line.text, cm.doc.mode, context, function (end, style) { return st.push(end, style); },
          lineClasses, forceToEnd);
  var state = context.state;

  // Run overlays, adjust style array.
  var loop = function ( o ) {
    var overlay = cm.state.overlays[o], i = 1, at = 0;
    context.state = true;
    runMode(cm, line.text, overlay.mode, context, function (end, style) {
      var start = i;
      // Ensure there's a token end at the current position, and that i points at it
      while (at < end) {
        var i_end = st[i];
        if (i_end > end)
          { st.splice(i, 1, end, st[i+1], i_end); }
        i += 2;
        at = Math.min(end, i_end);
      }
      if (!style) { return }
      if (overlay.opaque) {
        st.splice(start, i - start, end, "overlay " + style);
        i = start + 2;
      } else {
        for (; start < i; start += 2) {
          var cur = st[start+1];
          st[start+1] = (cur ? cur + " " : "") + "overlay " + style;
        }
      }
    }, lineClasses);
  };

  for (var o = 0; o < cm.state.overlays.length; ++o) loop( o );
  context.state = state;

  return {styles: st, classes: lineClasses.bgClass || lineClasses.textClass ? lineClasses : null}
}

function getLineStyles(cm, line, updateFrontier) {
  if (!line.styles || line.styles[0] != cm.state.modeGen) {
    var context = getContextBefore(cm, lineNo(line));
    var resetState = line.text.length > cm.options.maxHighlightLength && copyState(cm.doc.mode, context.state);
    var result = highlightLine(cm, line, context);
    if (resetState) { context.state = resetState; }
    line.stateAfter = context.save(!resetState);
    line.styles = result.styles;
    if (result.classes) { line.styleClasses = result.classes; }
    else if (line.styleClasses) { line.styleClasses = null; }
    if (updateFrontier === cm.doc.highlightFrontier)
      { cm.doc.modeFrontier = Math.max(cm.doc.modeFrontier, ++cm.doc.highlightFrontier); }
  }
  return line.styles
}

function getContextBefore(cm, n, precise) {
  var doc = cm.doc, display = cm.display;
  if (!doc.mode.startState) { return new Context(doc, true, n) }
  var start = findStartLine(cm, n, precise);
  var saved = start > doc.first && getLine(doc, start - 1).stateAfter;
  var context = saved ? Context.fromSaved(doc, saved, start) : new Context(doc, startState(doc.mode), start);

  doc.iter(start, n, function (line) {
    processLine(cm, line.text, context);
    var pos = context.line;
    line.stateAfter = pos == n - 1 || pos % 5 == 0 || pos >= display.viewFrom && pos < display.viewTo ? context.save() : null;
    context.nextLine();
  });
  if (precise) { doc.modeFrontier = context.line; }
  return context
}

// Lightweight form of highlight -- proceed over this line and
// update state, but don't save a style array. Used for lines that
// aren't currently visible.
function processLine(cm, text, context, startAt) {
  var mode = cm.doc.mode;
  var stream = new StringStream(text, cm.options.tabSize, context);
  stream.start = stream.pos = startAt || 0;
  if (text == "") { callBlankLine(mode, context.state); }
  while (!stream.eol()) {
    readToken(mode, stream, context.state);
    stream.start = stream.pos;
  }
}

function callBlankLine(mode, state) {
  if (mode.blankLine) { return mode.blankLine(state) }
  if (!mode.innerMode) { return }
  var inner = innerMode(mode, state);
  if (inner.mode.blankLine) { return inner.mode.blankLine(inner.state) }
}

function readToken(mode, stream, state, inner) {
  for (var i = 0; i < 10; i++) {
    if (inner) { inner[0] = innerMode(mode, state).mode; }
    var style = mode.token(stream, state);
    if (stream.pos > stream.start) { return style }
  }
  throw new Error("Mode " + mode.name + " failed to advance stream.")
}

var Token = function(stream, type, state) {
  this.start = stream.start; this.end = stream.pos;
  this.string = stream.current();
  this.type = type || null;
  this.state = state;
};

// Utility for getTokenAt and getLineTokens
function takeToken(cm, pos, precise, asArray) {
  var doc = cm.doc, mode = doc.mode, style;
  pos = clipPos(doc, pos);
  var line = getLine(doc, pos.line), context = getContextBefore(cm, pos.line, precise);
  var stream = new StringStream(line.text, cm.options.tabSize, context), tokens;
  if (asArray) { tokens = []; }
  while ((asArray || stream.pos < pos.ch) && !stream.eol()) {
    stream.start = stream.pos;
    style = readToken(mode, stream, context.state);
    if (asArray) { tokens.push(new Token(stream, style, copyState(doc.mode, context.state))); }
  }
  return asArray ? tokens : new Token(stream, style, context.state)
}

function extractLineClasses(type, output) {
  if (type) { for (;;) {
    var lineClass = type.match(/(?:^|\s+)line-(background-)?(\S+)/);
    if (!lineClass) { break }
    type = type.slice(0, lineClass.index) + type.slice(lineClass.index + lineClass[0].length);
    var prop = lineClass[1] ? "bgClass" : "textClass";
    if (output[prop] == null)
      { output[prop] = lineClass[2]; }
    else if (!(new RegExp("(?:^|\s)" + lineClass[2] + "(?:$|\s)")).test(output[prop]))
      { output[prop] += " " + lineClass[2]; }
  } }
  return type
}

// Run the given mode's parser over a line, calling f for each token.
function runMode(cm, text, mode, context, f, lineClasses, forceToEnd) {
  var flattenSpans = mode.flattenSpans;
  if (flattenSpans == null) { flattenSpans = cm.options.flattenSpans; }
  var curStart = 0, curStyle = null;
  var stream = new StringStream(text, cm.options.tabSize, context), style;
  var inner = cm.options.addModeClass && [null];
  if (text == "") { extractLineClasses(callBlankLine(mode, context.state), lineClasses); }
  while (!stream.eol()) {
    if (stream.pos > cm.options.maxHighlightLength) {
      flattenSpans = false;
      if (forceToEnd) { processLine(cm, text, context, stream.pos); }
      stream.pos = text.length;
      style = null;
    } else {
      style = extractLineClasses(readToken(mode, stream, context.state, inner), lineClasses);
    }
    if (inner) {
      var mName = inner[0].name;
      if (mName) { style = "m-" + (style ? mName + " " + style : mName); }
    }
    if (!flattenSpans || curStyle != style) {
      while (curStart < stream.start) {
        curStart = Math.min(stream.start, curStart + 5000);
        f(curStart, curStyle);
      }
      curStyle = style;
    }
    stream.start = stream.pos;
  }
  while (curStart < stream.pos) {
    // Webkit seems to refuse to render text nodes longer than 57444
    // characters, and returns inaccurate measurements in nodes
    // starting around 5000 chars.
    var pos = Math.min(stream.pos, curStart + 5000);
    f(pos, curStyle);
    curStart = pos;
  }
}

// Finds the line to start with when starting a parse. Tries to
// find a line with a stateAfter, so that it can start with a
// valid state. If that fails, it returns the line with the
// smallest indentation, which tends to need the least context to
// parse correctly.
function findStartLine(cm, n, precise) {
  var minindent, minline, doc = cm.doc;
  var lim = precise ? -1 : n - (cm.doc.mode.innerMode ? 1000 : 100);
  for (var search = n; search > lim; --search) {
    if (search <= doc.first) { return doc.first }
    var line = getLine(doc, search - 1), after = line.stateAfter;
    if (after && (!precise || search + (after instanceof SavedContext ? after.lookAhead : 0) <= doc.modeFrontier))
      { return search }
    var indented = countColumn(line.text, null, cm.options.tabSize);
    if (minline == null || minindent > indented) {
      minline = search - 1;
      minindent = indented;
    }
  }
  return minline
}

function retreatFrontier(doc, n) {
  doc.modeFrontier = Math.min(doc.modeFrontier, n);
  if (doc.highlightFrontier < n - 10) { return }
  var start = doc.first;
  for (var line = n - 1; line > start; line--) {
    var saved = getLine(doc, line).stateAfter;
    // change is on 3
    // state on line 1 looked ahead 2 -- so saw 3
    // test 1 + 2 < 3 should cover this
    if (saved && (!(saved instanceof SavedContext) || line + saved.lookAhead < n)) {
      start = line + 1;
      break
    }
  }
  doc.highlightFrontier = Math.min(doc.highlightFrontier, start);
}

// LINE DATA STRUCTURE

// Line objects. These hold state related to a line, including
// highlighting info (the styles array).
var Line = function(text, markedSpans, estimateHeight) {
  this.text = text;
  attachMarkedSpans(this, markedSpans);
  this.height = estimateHeight ? estimateHeight(this) : 1;
};

Line.prototype.lineNo = function () { return lineNo(this) };
eventMixin(Line);

// Change the content (text, markers) of a line. Automatically
// invalidates cached information and tries to re-estimate the
// line's height.
function updateLine(line, text, markedSpans, estimateHeight) {
  line.text = text;
  if (line.stateAfter) { line.stateAfter = null; }
  if (line.styles) { line.styles = null; }
  if (line.order != null) { line.order = null; }
  detachMarkedSpans(line);
  attachMarkedSpans(line, markedSpans);
  var estHeight = estimateHeight ? estimateHeight(line) : 1;
  if (estHeight != line.height) { updateLineHeight(line, estHeight); }
}

// Detach a line from the document tree and its markers.
function cleanUpLine(line) {
  line.parent = null;
  detachMarkedSpans(line);
}

// Convert a style as returned by a mode (either null, or a string
// containing one or more styles) to a CSS style. This is cached,
// and also looks for line-wide styles.
var styleToClassCache = {};
var styleToClassCacheWithMode = {};
function interpretTokenStyle(style, options) {
  if (!style || /^\s*$/.test(style)) { return null }
  var cache = options.addModeClass ? styleToClassCacheWithMode : styleToClassCache;
  return cache[style] ||
    (cache[style] = style.replace(/\S+/g, "cm-$&"))
}

// Render the DOM representation of the text of a line. Also builds
// up a 'line map', which points at the DOM nodes that represent
// specific stretches of text, and is used by the measuring code.
// The returned object contains the DOM node, this map, and
// information about line-wide styles that were set by the mode.
function buildLineContent(cm, lineView) {
  // The padding-right forces the element to have a 'border', which
  // is needed on Webkit to be able to get line-level bounding
  // rectangles for it (in measureChar).
  var content = eltP("span", null, null, webkit ? "padding-right: .1px" : null);
  var builder = {pre: eltP("pre", [content], "CodeMirror-line"), content: content,
                 col: 0, pos: 0, cm: cm,
                 trailingSpace: false,
                 splitSpaces: (ie || webkit) && cm.getOption("lineWrapping")};
  lineView.measure = {};

  // Iterate over the logical lines that make up this visual line.
  for (var i = 0; i <= (lineView.rest ? lineView.rest.length : 0); i++) {
    var line = i ? lineView.rest[i - 1] : lineView.line, order = (void 0);
    builder.pos = 0;
    builder.addToken = buildToken;
    // Optionally wire in some hacks into the token-rendering
    // algorithm, to deal with browser quirks.
    if (hasBadBidiRects(cm.display.measure) && (order = getOrder(line, cm.doc.direction)))
      { builder.addToken = buildTokenBadBidi(builder.addToken, order); }
    builder.map = [];
    var allowFrontierUpdate = lineView != cm.display.externalMeasured && lineNo(line);
    insertLineContent(line, builder, getLineStyles(cm, line, allowFrontierUpdate));
    if (line.styleClasses) {
      if (line.styleClasses.bgClass)
        { builder.bgClass = joinClasses(line.styleClasses.bgClass, builder.bgClass || ""); }
      if (line.styleClasses.textClass)
        { builder.textClass = joinClasses(line.styleClasses.textClass, builder.textClass || ""); }
    }

    // Ensure at least a single node is present, for measuring.
    if (builder.map.length == 0)
      { builder.map.push(0, 0, builder.content.appendChild(zeroWidthElement(cm.display.measure))); }

    // Store the map and a cache object for the current logical line
    if (i == 0) {
      lineView.measure.map = builder.map;
      lineView.measure.cache = {};
    } else {
      (lineView.measure.maps || (lineView.measure.maps = [])).push(builder.map)
      ;(lineView.measure.caches || (lineView.measure.caches = [])).push({});
    }
  }

  // See issue #2901
  if (webkit) {
    var last = builder.content.lastChild;
    if (/\bcm-tab\b/.test(last.className) || (last.querySelector && last.querySelector(".cm-tab")))
      { builder.content.className = "cm-tab-wrap-hack"; }
  }

  signal(cm, "renderLine", cm, lineView.line, builder.pre);
  if (builder.pre.className)
    { builder.textClass = joinClasses(builder.pre.className, builder.textClass || ""); }

  return builder
}

function defaultSpecialCharPlaceholder(ch) {
  var token = elt("span", "\u2022", "cm-invalidchar");
  token.title = "\\u" + ch.charCodeAt(0).toString(16);
  token.setAttribute("aria-label", token.title);
  return token
}

// Build up the DOM representation for a single token, and add it to
// the line map. Takes care to render special characters separately.
function buildToken(builder, text, style, startStyle, endStyle, title, css) {
  if (!text) { return }
  var displayText = builder.splitSpaces ? splitSpaces(text, builder.trailingSpace) : text;
  var special = builder.cm.state.specialChars, mustWrap = false;
  var content;
  if (!special.test(text)) {
    builder.col += text.length;
    content = document.createTextNode(displayText);
    builder.map.push(builder.pos, builder.pos + text.length, content);
    if (ie && ie_version < 9) { mustWrap = true; }
    builder.pos += text.length;
  } else {
    content = document.createDocumentFragment();
    var pos = 0;
    while (true) {
      special.lastIndex = pos;
      var m = special.exec(text);
      var skipped = m ? m.index - pos : text.length - pos;
      if (skipped) {
        var txt = document.createTextNode(displayText.slice(pos, pos + skipped));
        if (ie && ie_version < 9) { content.appendChild(elt("span", [txt])); }
        else { content.appendChild(txt); }
        builder.map.push(builder.pos, builder.pos + skipped, txt);
        builder.col += skipped;
        builder.pos += skipped;
      }
      if (!m) { break }
      pos += skipped + 1;
      var txt$1 = (void 0);
      if (m[0] == "\t") {
        var tabSize = builder.cm.options.tabSize, tabWidth = tabSize - builder.col % tabSize;
        txt$1 = content.appendChild(elt("span", spaceStr(tabWidth), "cm-tab"));
        txt$1.setAttribute("role", "presentation");
        txt$1.setAttribute("cm-text", "\t");
        builder.col += tabWidth;
      } else if (m[0] == "\r" || m[0] == "\n") {
        txt$1 = content.appendChild(elt("span", m[0] == "\r" ? "\u240d" : "\u2424", "cm-invalidchar"));
        txt$1.setAttribute("cm-text", m[0]);
        builder.col += 1;
      } else {
        txt$1 = builder.cm.options.specialCharPlaceholder(m[0]);
        txt$1.setAttribute("cm-text", m[0]);
        if (ie && ie_version < 9) { content.appendChild(elt("span", [txt$1])); }
        else { content.appendChild(txt$1); }
        builder.col += 1;
      }
      builder.map.push(builder.pos, builder.pos + 1, txt$1);
      builder.pos++;
    }
  }
  builder.trailingSpace = displayText.charCodeAt(text.length - 1) == 32;
  if (style || startStyle || endStyle || mustWrap || css) {
    var fullStyle = style || "";
    if (startStyle) { fullStyle += startStyle; }
    if (endStyle) { fullStyle += endStyle; }
    var token = elt("span", [content], fullStyle, css);
    if (title) { token.title = title; }
    return builder.content.appendChild(token)
  }
  builder.content.appendChild(content);
}

function splitSpaces(text, trailingBefore) {
  if (text.length > 1 && !/  /.test(text)) { return text }
  var spaceBefore = trailingBefore, result = "";
  for (var i = 0; i < text.length; i++) {
    var ch = text.charAt(i);
    if (ch == " " && spaceBefore && (i == text.length - 1 || text.charCodeAt(i + 1) == 32))
      { ch = "\u00a0"; }
    result += ch;
    spaceBefore = ch == " ";
  }
  return result
}

// Work around nonsense dimensions being reported for stretches of
// right-to-left text.
function buildTokenBadBidi(inner, order) {
  return function (builder, text, style, startStyle, endStyle, title, css) {
    style = style ? style + " cm-force-border" : "cm-force-border";
    var start = builder.pos, end = start + text.length;
    for (;;) {
      // Find the part that overlaps with the start of this text
      var part = (void 0);
      for (var i = 0; i < order.length; i++) {
        part = order[i];
        if (part.to > start && part.from <= start) { break }
      }
      if (part.to >= end) { return inner(builder, text, style, startStyle, endStyle, title, css) }
      inner(builder, text.slice(0, part.to - start), style, startStyle, null, title, css);
      startStyle = null;
      text = text.slice(part.to - start);
      start = part.to;
    }
  }
}

function buildCollapsedSpan(builder, size, marker, ignoreWidget) {
  var widget = !ignoreWidget && marker.widgetNode;
  if (widget) { builder.map.push(builder.pos, builder.pos + size, widget); }
  if (!ignoreWidget && builder.cm.display.input.needsContentAttribute) {
    if (!widget)
      { widget = builder.content.appendChild(document.createElement("span")); }
    widget.setAttribute("cm-marker", marker.id);
  }
  if (widget) {
    builder.cm.display.input.setUneditable(widget);
    builder.content.appendChild(widget);
  }
  builder.pos += size;
  builder.trailingSpace = false;
}

// Outputs a number of spans to make up a line, taking highlighting
// and marked text into account.
function insertLineContent(line, builder, styles) {
  var spans = line.markedSpans, allText = line.text, at = 0;
  if (!spans) {
    for (var i$1 = 1; i$1 < styles.length; i$1+=2)
      { builder.addToken(builder, allText.slice(at, at = styles[i$1]), interpretTokenStyle(styles[i$1+1], builder.cm.options)); }
    return
  }

  var len = allText.length, pos = 0, i = 1, text = "", style, css;
  var nextChange = 0, spanStyle, spanEndStyle, spanStartStyle, title, collapsed;
  for (;;) {
    if (nextChange == pos) { // Update current marker set
      spanStyle = spanEndStyle = spanStartStyle = title = css = "";
      collapsed = null; nextChange = Infinity;
      var foundBookmarks = [], endStyles = (void 0);
      for (var j = 0; j < spans.length; ++j) {
        var sp = spans[j], m = sp.marker;
        if (m.type == "bookmark" && sp.from == pos && m.widgetNode) {
          foundBookmarks.push(m);
        } else if (sp.from <= pos && (sp.to == null || sp.to > pos || m.collapsed && sp.to == pos && sp.from == pos)) {
          if (sp.to != null && sp.to != pos && nextChange > sp.to) {
            nextChange = sp.to;
            spanEndStyle = "";
          }
          if (m.className) { spanStyle += " " + m.className; }
          if (m.css) { css = (css ? css + ";" : "") + m.css; }
          if (m.startStyle && sp.from == pos) { spanStartStyle += " " + m.startStyle; }
          if (m.endStyle && sp.to == nextChange) { (endStyles || (endStyles = [])).push(m.endStyle, sp.to); }
          if (m.title && !title) { title = m.title; }
          if (m.collapsed && (!collapsed || compareCollapsedMarkers(collapsed.marker, m) < 0))
            { collapsed = sp; }
        } else if (sp.from > pos && nextChange > sp.from) {
          nextChange = sp.from;
        }
      }
      if (endStyles) { for (var j$1 = 0; j$1 < endStyles.length; j$1 += 2)
        { if (endStyles[j$1 + 1] == nextChange) { spanEndStyle += " " + endStyles[j$1]; } } }

      if (!collapsed || collapsed.from == pos) { for (var j$2 = 0; j$2 < foundBookmarks.length; ++j$2)
        { buildCollapsedSpan(builder, 0, foundBookmarks[j$2]); } }
      if (collapsed && (collapsed.from || 0) == pos) {
        buildCollapsedSpan(builder, (collapsed.to == null ? len + 1 : collapsed.to) - pos,
                           collapsed.marker, collapsed.from == null);
        if (collapsed.to == null) { return }
        if (collapsed.to == pos) { collapsed = false; }
      }
    }
    if (pos >= len) { break }

    var upto = Math.min(len, nextChange);
    while (true) {
      if (text) {
        var end = pos + text.length;
        if (!collapsed) {
          var tokenText = end > upto ? text.slice(0, upto - pos) : text;
          builder.addToken(builder, tokenText, style ? style + spanStyle : spanStyle,
                           spanStartStyle, pos + tokenText.length == nextChange ? spanEndStyle : "", title, css);
        }
        if (end >= upto) {text = text.slice(upto - pos); pos = upto; break}
        pos = end;
        spanStartStyle = "";
      }
      text = allText.slice(at, at = styles[i++]);
      style = interpretTokenStyle(styles[i++], builder.cm.options);
    }
  }
}


// These objects are used to represent the visible (currently drawn)
// part of the document. A LineView may correspond to multiple
// logical lines, if those are connected by collapsed ranges.
function LineView(doc, line, lineN) {
  // The starting line
  this.line = line;
  // Continuing lines, if any
  this.rest = visualLineContinued(line);
  // Number of logical lines in this visual line
  this.size = this.rest ? lineNo(lst(this.rest)) - lineN + 1 : 1;
  this.node = this.text = null;
  this.hidden = lineIsHidden(doc, line);
}

// Create a range of LineView objects for the given lines.
function buildViewArray(cm, from, to) {
  var array = [], nextPos;
  for (var pos = from; pos < to; pos = nextPos) {
    var view = new LineView(cm.doc, getLine(cm.doc, pos), pos);
    nextPos = pos + view.size;
    array.push(view);
  }
  return array
}

var operationGroup = null;

function pushOperation(op) {
  if (operationGroup) {
    operationGroup.ops.push(op);
  } else {
    op.ownsGroup = operationGroup = {
      ops: [op],
      delayedCallbacks: []
    };
  }
}

function fireCallbacksForOps(group) {
  // Calls delayed callbacks and cursorActivity handlers until no
  // new ones appear
  var callbacks = group.delayedCallbacks, i = 0;
  do {
    for (; i < callbacks.length; i++)
      { callbacks[i].call(null); }
    for (var j = 0; j < group.ops.length; j++) {
      var op = group.ops[j];
      if (op.cursorActivityHandlers)
        { while (op.cursorActivityCalled < op.cursorActivityHandlers.length)
          { op.cursorActivityHandlers[op.cursorActivityCalled++].call(null, op.cm); } }
    }
  } while (i < callbacks.length)
}

function finishOperation(op, endCb) {
  var group = op.ownsGroup;
  if (!group) { return }

  try { fireCallbacksForOps(group); }
  finally {
    operationGroup = null;
    endCb(group);
  }
}

var orphanDelayedCallbacks = null;

// Often, we want to signal events at a point where we are in the
// middle of some work, but don't want the handler to start calling
// other methods on the editor, which might be in an inconsistent
// state or simply not expect any other events to happen.
// signalLater looks whether there are any handlers, and schedules
// them to be executed when the last operation ends, or, if no
// operation is active, when a timeout fires.
function signalLater(emitter, type /*, values...*/) {
  var arr = getHandlers(emitter, type);
  if (!arr.length) { return }
  var args = Array.prototype.slice.call(arguments, 2), list;
  if (operationGroup) {
    list = operationGroup.delayedCallbacks;
  } else if (orphanDelayedCallbacks) {
    list = orphanDelayedCallbacks;
  } else {
    list = orphanDelayedCallbacks = [];
    setTimeout(fireOrphanDelayed, 0);
  }
  var loop = function ( i ) {
    list.push(function () { return arr[i].apply(null, args); });
  };

  for (var i = 0; i < arr.length; ++i)
    loop( i );
}

function fireOrphanDelayed() {
  var delayed = orphanDelayedCallbacks;
  orphanDelayedCallbacks = null;
  for (var i = 0; i < delayed.length; ++i) { delayed[i](); }
}

// When an aspect of a line changes, a string is added to
// lineView.changes. This updates the relevant part of the line's
// DOM structure.
function updateLineForChanges(cm, lineView, lineN, dims) {
  for (var j = 0; j < lineView.changes.length; j++) {
    var type = lineView.changes[j];
    if (type == "text") { updateLineText(cm, lineView); }
    else if (type == "gutter") { updateLineGutter(cm, lineView, lineN, dims); }
    else if (type == "class") { updateLineClasses(cm, lineView); }
    else if (type == "widget") { updateLineWidgets(cm, lineView, dims); }
  }
  lineView.changes = null;
}

// Lines with gutter elements, widgets or a background class need to
// be wrapped, and have the extra elements added to the wrapper div
function ensureLineWrapped(lineView) {
  if (lineView.node == lineView.text) {
    lineView.node = elt("div", null, null, "position: relative");
    if (lineView.text.parentNode)
      { lineView.text.parentNode.replaceChild(lineView.node, lineView.text); }
    lineView.node.appendChild(lineView.text);
    if (ie && ie_version < 8) { lineView.node.style.zIndex = 2; }
  }
  return lineView.node
}

function updateLineBackground(cm, lineView) {
  var cls = lineView.bgClass ? lineView.bgClass + " " + (lineView.line.bgClass || "") : lineView.line.bgClass;
  if (cls) { cls += " CodeMirror-linebackground"; }
  if (lineView.background) {
    if (cls) { lineView.background.className = cls; }
    else { lineView.background.parentNode.removeChild(lineView.background); lineView.background = null; }
  } else if (cls) {
    var wrap = ensureLineWrapped(lineView);
    lineView.background = wrap.insertBefore(elt("div", null, cls), wrap.firstChild);
    cm.display.input.setUneditable(lineView.background);
  }
}

// Wrapper around buildLineContent which will reuse the structure
// in display.externalMeasured when possible.
function getLineContent(cm, lineView) {
  var ext = cm.display.externalMeasured;
  if (ext && ext.line == lineView.line) {
    cm.display.externalMeasured = null;
    lineView.measure = ext.measure;
    return ext.built
  }
  return buildLineContent(cm, lineView)
}

// Redraw the line's text. Interacts with the background and text
// classes because the mode may output tokens that influence these
// classes.
function updateLineText(cm, lineView) {
  var cls = lineView.text.className;
  var built = getLineContent(cm, lineView);
  if (lineView.text == lineView.node) { lineView.node = built.pre; }
  lineView.text.parentNode.replaceChild(built.pre, lineView.text);
  lineView.text = built.pre;
  if (built.bgClass != lineView.bgClass || built.textClass != lineView.textClass) {
    lineView.bgClass = built.bgClass;
    lineView.textClass = built.textClass;
    updateLineClasses(cm, lineView);
  } else if (cls) {
    lineView.text.className = cls;
  }
}

function updateLineClasses(cm, lineView) {
  updateLineBackground(cm, lineView);
  if (lineView.line.wrapClass)
    { ensureLineWrapped(lineView).className = lineView.line.wrapClass; }
  else if (lineView.node != lineView.text)
    { lineView.node.className = ""; }
  var textClass = lineView.textClass ? lineView.textClass + " " + (lineView.line.textClass || "") : lineView.line.textClass;
  lineView.text.className = textClass || "";
}

function updateLineGutter(cm, lineView, lineN, dims) {
  if (lineView.gutter) {
    lineView.node.removeChild(lineView.gutter);
    lineView.gutter = null;
  }
  if (lineView.gutterBackground) {
    lineView.node.removeChild(lineView.gutterBackground);
    lineView.gutterBackground = null;
  }
  if (lineView.line.gutterClass) {
    var wrap = ensureLineWrapped(lineView);
    lineView.gutterBackground = elt("div", null, "CodeMirror-gutter-background " + lineView.line.gutterClass,
                                    ("left: " + (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) + "px; width: " + (dims.gutterTotalWidth) + "px"));
    cm.display.input.setUneditable(lineView.gutterBackground);
    wrap.insertBefore(lineView.gutterBackground, lineView.text);
  }
  var markers = lineView.line.gutterMarkers;
  if (cm.options.lineNumbers || markers) {
    var wrap$1 = ensureLineWrapped(lineView);
    var gutterWrap = lineView.gutter = elt("div", null, "CodeMirror-gutter-wrapper", ("left: " + (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) + "px"));
    cm.display.input.setUneditable(gutterWrap);
    wrap$1.insertBefore(gutterWrap, lineView.text);
    if (lineView.line.gutterClass)
      { gutterWrap.className += " " + lineView.line.gutterClass; }
    if (cm.options.lineNumbers && (!markers || !markers["CodeMirror-linenumbers"]))
      { lineView.lineNumber = gutterWrap.appendChild(
        elt("div", lineNumberFor(cm.options, lineN),
            "CodeMirror-linenumber CodeMirror-gutter-elt",
            ("left: " + (dims.gutterLeft["CodeMirror-linenumbers"]) + "px; width: " + (cm.display.lineNumInnerWidth) + "px"))); }
    if (markers) { for (var k = 0; k < cm.options.gutters.length; ++k) {
      var id = cm.options.gutters[k], found = markers.hasOwnProperty(id) && markers[id];
      if (found)
        { gutterWrap.appendChild(elt("div", [found], "CodeMirror-gutter-elt",
                                   ("left: " + (dims.gutterLeft[id]) + "px; width: " + (dims.gutterWidth[id]) + "px"))); }
    } }
  }
}

function updateLineWidgets(cm, lineView, dims) {
  if (lineView.alignable) { lineView.alignable = null; }
  for (var node = lineView.node.firstChild, next = (void 0); node; node = next) {
    next = node.nextSibling;
    if (node.className == "CodeMirror-linewidget")
      { lineView.node.removeChild(node); }
  }
  insertLineWidgets(cm, lineView, dims);
}

// Build a line's DOM representation from scratch
function buildLineElement(cm, lineView, lineN, dims) {
  var built = getLineContent(cm, lineView);
  lineView.text = lineView.node = built.pre;
  if (built.bgClass) { lineView.bgClass = built.bgClass; }
  if (built.textClass) { lineView.textClass = built.textClass; }

  updateLineClasses(cm, lineView);
  updateLineGutter(cm, lineView, lineN, dims);
  insertLineWidgets(cm, lineView, dims);
  return lineView.node
}

// A lineView may contain multiple logical lines (when merged by
// collapsed spans). The widgets for all of them need to be drawn.
function insertLineWidgets(cm, lineView, dims) {
  insertLineWidgetsFor(cm, lineView.line, lineView, dims, true);
  if (lineView.rest) { for (var i = 0; i < lineView.rest.length; i++)
    { insertLineWidgetsFor(cm, lineView.rest[i], lineView, dims, false); } }
}

function insertLineWidgetsFor(cm, line, lineView, dims, allowAbove) {
  if (!line.widgets) { return }
  var wrap = ensureLineWrapped(lineView);
  for (var i = 0, ws = line.widgets; i < ws.length; ++i) {
    var widget = ws[i], node = elt("div", [widget.node], "CodeMirror-linewidget");
    if (!widget.handleMouseEvents) { node.setAttribute("cm-ignore-events", "true"); }
    positionLineWidget(widget, node, lineView, dims);
    cm.display.input.setUneditable(node);
    if (allowAbove && widget.above)
      { wrap.insertBefore(node, lineView.gutter || lineView.text); }
    else
      { wrap.appendChild(node); }
    signalLater(widget, "redraw");
  }
}

function positionLineWidget(widget, node, lineView, dims) {
  if (widget.noHScroll) {
    (lineView.alignable || (lineView.alignable = [])).push(node);
    var width = dims.wrapperWidth;
    node.style.left = dims.fixedPos + "px";
    if (!widget.coverGutter) {
      width -= dims.gutterTotalWidth;
      node.style.paddingLeft = dims.gutterTotalWidth + "px";
    }
    node.style.width = width + "px";
  }
  if (widget.coverGutter) {
    node.style.zIndex = 5;
    node.style.position = "relative";
    if (!widget.noHScroll) { node.style.marginLeft = -dims.gutterTotalWidth + "px"; }
  }
}

function widgetHeight(widget) {
  if (widget.height != null) { return widget.height }
  var cm = widget.doc.cm;
  if (!cm) { return 0 }
  if (!contains(document.body, widget.node)) {
    var parentStyle = "position: relative;";
    if (widget.coverGutter)
      { parentStyle += "margin-left: -" + cm.display.gutters.offsetWidth + "px;"; }
    if (widget.noHScroll)
      { parentStyle += "width: " + cm.display.wrapper.clientWidth + "px;"; }
    removeChildrenAndAdd(cm.display.measure, elt("div", [widget.node], null, parentStyle));
  }
  return widget.height = widget.node.parentNode.offsetHeight
}

// Return true when the given mouse event happened in a widget
function eventInWidget(display, e) {
  for (var n = e_target(e); n != display.wrapper; n = n.parentNode) {
    if (!n || (n.nodeType == 1 && n.getAttribute("cm-ignore-events") == "true") ||
        (n.parentNode == display.sizer && n != display.mover))
      { return true }
  }
}

// POSITION MEASUREMENT

function paddingTop(display) {return display.lineSpace.offsetTop}
function paddingVert(display) {return display.mover.offsetHeight - display.lineSpace.offsetHeight}
function paddingH(display) {
  if (display.cachedPaddingH) { return display.cachedPaddingH }
  var e = removeChildrenAndAdd(display.measure, elt("pre", "x"));
  var style = window.getComputedStyle ? window.getComputedStyle(e) : e.currentStyle;
  var data = {left: parseInt(style.paddingLeft), right: parseInt(style.paddingRight)};
  if (!isNaN(data.left) && !isNaN(data.right)) { display.cachedPaddingH = data; }
  return data
}

function scrollGap(cm) { return scrollerGap - cm.display.nativeBarWidth }
function displayWidth(cm) {
  return cm.display.scroller.clientWidth - scrollGap(cm) - cm.display.barWidth
}
function displayHeight(cm) {
  return cm.display.scroller.clientHeight - scrollGap(cm) - cm.display.barHeight
}

// Ensure the lineView.wrapping.heights array is populated. This is
// an array of bottom offsets for the lines that make up a drawn
// line. When lineWrapping is on, there might be more than one
// height.
function ensureLineHeights(cm, lineView, rect) {
  var wrapping = cm.options.lineWrapping;
  var curWidth = wrapping && displayWidth(cm);
  if (!lineView.measure.heights || wrapping && lineView.measure.width != curWidth) {
    var heights = lineView.measure.heights = [];
    if (wrapping) {
      lineView.measure.width = curWidth;
      var rects = lineView.text.firstChild.getClientRects();
      for (var i = 0; i < rects.length - 1; i++) {
        var cur = rects[i], next = rects[i + 1];
        if (Math.abs(cur.bottom - next.bottom) > 2)
          { heights.push((cur.bottom + next.top) / 2 - rect.top); }
      }
    }
    heights.push(rect.bottom - rect.top);
  }
}

// Find a line map (mapping character offsets to text nodes) and a
// measurement cache for the given line number. (A line view might
// contain multiple lines when collapsed ranges are present.)
function mapFromLineView(lineView, line, lineN) {
  if (lineView.line == line)
    { return {map: lineView.measure.map, cache: lineView.measure.cache} }
  for (var i = 0; i < lineView.rest.length; i++)
    { if (lineView.rest[i] == line)
      { return {map: lineView.measure.maps[i], cache: lineView.measure.caches[i]} } }
  for (var i$1 = 0; i$1 < lineView.rest.length; i$1++)
    { if (lineNo(lineView.rest[i$1]) > lineN)
      { return {map: lineView.measure.maps[i$1], cache: lineView.measure.caches[i$1], before: true} } }
}

// Render a line into the hidden node display.externalMeasured. Used
// when measurement is needed for a line that's not in the viewport.
function updateExternalMeasurement(cm, line) {
  line = visualLine(line);
  var lineN = lineNo(line);
  var view = cm.display.externalMeasured = new LineView(cm.doc, line, lineN);
  view.lineN = lineN;
  var built = view.built = buildLineContent(cm, view);
  view.text = built.pre;
  removeChildrenAndAdd(cm.display.lineMeasure, built.pre);
  return view
}

// Get a {top, bottom, left, right} box (in line-local coordinates)
// for a given character.
function measureChar(cm, line, ch, bias) {
  return measureCharPrepared(cm, prepareMeasureForLine(cm, line), ch, bias)
}

// Find a line view that corresponds to the given line number.
function findViewForLine(cm, lineN) {
  if (lineN >= cm.display.viewFrom && lineN < cm.display.viewTo)
    { return cm.display.view[findViewIndex(cm, lineN)] }
  var ext = cm.display.externalMeasured;
  if (ext && lineN >= ext.lineN && lineN < ext.lineN + ext.size)
    { return ext }
}

// Measurement can be split in two steps, the set-up work that
// applies to the whole line, and the measurement of the actual
// character. Functions like coordsChar, that need to do a lot of
// measurements in a row, can thus ensure that the set-up work is
// only done once.
function prepareMeasureForLine(cm, line) {
  var lineN = lineNo(line);
  var view = findViewForLine(cm, lineN);
  if (view && !view.text) {
    view = null;
  } else if (view && view.changes) {
    updateLineForChanges(cm, view, lineN, getDimensions(cm));
    cm.curOp.forceUpdate = true;
  }
  if (!view)
    { view = updateExternalMeasurement(cm, line); }

  var info = mapFromLineView(view, line, lineN);
  return {
    line: line, view: view, rect: null,
    map: info.map, cache: info.cache, before: info.before,
    hasHeights: false
  }
}

// Given a prepared measurement object, measures the position of an
// actual character (or fetches it from the cache).
function measureCharPrepared(cm, prepared, ch, bias, varHeight) {
  if (prepared.before) { ch = -1; }
  var key = ch + (bias || ""), found;
  if (prepared.cache.hasOwnProperty(key)) {
    found = prepared.cache[key];
  } else {
    if (!prepared.rect)
      { prepared.rect = prepared.view.text.getBoundingClientRect(); }
    if (!prepared.hasHeights) {
      ensureLineHeights(cm, prepared.view, prepared.rect);
      prepared.hasHeights = true;
    }
    found = measureCharInner(cm, prepared, ch, bias);
    if (!found.bogus) { prepared.cache[key] = found; }
  }
  return {left: found.left, right: found.right,
          top: varHeight ? found.rtop : found.top,
          bottom: varHeight ? found.rbottom : found.bottom}
}

var nullRect = {left: 0, right: 0, top: 0, bottom: 0};

function nodeAndOffsetInLineMap(map$$1, ch, bias) {
  var node, start, end, collapse, mStart, mEnd;
  // First, search the line map for the text node corresponding to,
  // or closest to, the target character.
  for (var i = 0; i < map$$1.length; i += 3) {
    mStart = map$$1[i];
    mEnd = map$$1[i + 1];
    if (ch < mStart) {
      start = 0; end = 1;
      collapse = "left";
    } else if (ch < mEnd) {
      start = ch - mStart;
      end = start + 1;
    } else if (i == map$$1.length - 3 || ch == mEnd && map$$1[i + 3] > ch) {
      end = mEnd - mStart;
      start = end - 1;
      if (ch >= mEnd) { collapse = "right"; }
    }
    if (start != null) {
      node = map$$1[i + 2];
      if (mStart == mEnd && bias == (node.insertLeft ? "left" : "right"))
        { collapse = bias; }
      if (bias == "left" && start == 0)
        { while (i && map$$1[i - 2] == map$$1[i - 3] && map$$1[i - 1].insertLeft) {
          node = map$$1[(i -= 3) + 2];
          collapse = "left";
        } }
      if (bias == "right" && start == mEnd - mStart)
        { while (i < map$$1.length - 3 && map$$1[i + 3] == map$$1[i + 4] && !map$$1[i + 5].insertLeft) {
          node = map$$1[(i += 3) + 2];
          collapse = "right";
        } }
      break
    }
  }
  return {node: node, start: start, end: end, collapse: collapse, coverStart: mStart, coverEnd: mEnd}
}

function getUsefulRect(rects, bias) {
  var rect = nullRect;
  if (bias == "left") { for (var i = 0; i < rects.length; i++) {
    if ((rect = rects[i]).left != rect.right) { break }
  } } else { for (var i$1 = rects.length - 1; i$1 >= 0; i$1--) {
    if ((rect = rects[i$1]).left != rect.right) { break }
  } }
  return rect
}

function measureCharInner(cm, prepared, ch, bias) {
  var place = nodeAndOffsetInLineMap(prepared.map, ch, bias);
  var node = place.node, start = place.start, end = place.end, collapse = place.collapse;

  var rect;
  if (node.nodeType == 3) { // If it is a text node, use a range to retrieve the coordinates.
    for (var i$1 = 0; i$1 < 4; i$1++) { // Retry a maximum of 4 times when nonsense rectangles are returned
      while (start && isExtendingChar(prepared.line.text.charAt(place.coverStart + start))) { --start; }
      while (place.coverStart + end < place.coverEnd && isExtendingChar(prepared.line.text.charAt(place.coverStart + end))) { ++end; }
      if (ie && ie_version < 9 && start == 0 && end == place.coverEnd - place.coverStart)
        { rect = node.parentNode.getBoundingClientRect(); }
      else
        { rect = getUsefulRect(range(node, start, end).getClientRects(), bias); }
      if (rect.left || rect.right || start == 0) { break }
      end = start;
      start = start - 1;
      collapse = "right";
    }
    if (ie && ie_version < 11) { rect = maybeUpdateRectForZooming(cm.display.measure, rect); }
  } else { // If it is a widget, simply get the box for the whole widget.
    if (start > 0) { collapse = bias = "right"; }
    var rects;
    if (cm.options.lineWrapping && (rects = node.getClientRects()).length > 1)
      { rect = rects[bias == "right" ? rects.length - 1 : 0]; }
    else
      { rect = node.getBoundingClientRect(); }
  }
  if (ie && ie_version < 9 && !start && (!rect || !rect.left && !rect.right)) {
    var rSpan = node.parentNode.getClientRects()[0];
    if (rSpan)
      { rect = {left: rSpan.left, right: rSpan.left + charWidth(cm.display), top: rSpan.top, bottom: rSpan.bottom}; }
    else
      { rect = nullRect; }
  }

  var rtop = rect.top - prepared.rect.top, rbot = rect.bottom - prepared.rect.top;
  var mid = (rtop + rbot) / 2;
  var heights = prepared.view.measure.heights;
  var i = 0;
  for (; i < heights.length - 1; i++)
    { if (mid < heights[i]) { break } }
  var top = i ? heights[i - 1] : 0, bot = heights[i];
  var result = {left: (collapse == "right" ? rect.right : rect.left) - prepared.rect.left,
                right: (collapse == "left" ? rect.left : rect.right) - prepared.rect.left,
                top: top, bottom: bot};
  if (!rect.left && !rect.right) { result.bogus = true; }
  if (!cm.options.singleCursorHeightPerLine) { result.rtop = rtop; result.rbottom = rbot; }

  return result
}

// Work around problem with bounding client rects on ranges being
// returned incorrectly when zoomed on IE10 and below.
function maybeUpdateRectForZooming(measure, rect) {
  if (!window.screen || screen.logicalXDPI == null ||
      screen.logicalXDPI == screen.deviceXDPI || !hasBadZoomedRects(measure))
    { return rect }
  var scaleX = screen.logicalXDPI / screen.deviceXDPI;
  var scaleY = screen.logicalYDPI / screen.deviceYDPI;
  return {left: rect.left * scaleX, right: rect.right * scaleX,
          top: rect.top * scaleY, bottom: rect.bottom * scaleY}
}

function clearLineMeasurementCacheFor(lineView) {
  if (lineView.measure) {
    lineView.measure.cache = {};
    lineView.measure.heights = null;
    if (lineView.rest) { for (var i = 0; i < lineView.rest.length; i++)
      { lineView.measure.caches[i] = {}; } }
  }
}

function clearLineMeasurementCache(cm) {
  cm.display.externalMeasure = null;
  removeChildren(cm.display.lineMeasure);
  for (var i = 0; i < cm.display.view.length; i++)
    { clearLineMeasurementCacheFor(cm.display.view[i]); }
}

function clearCaches(cm) {
  clearLineMeasurementCache(cm);
  cm.display.cachedCharWidth = cm.display.cachedTextHeight = cm.display.cachedPaddingH = null;
  if (!cm.options.lineWrapping) { cm.display.maxLineChanged = true; }
  cm.display.lineNumChars = null;
}

function pageScrollX() {
  // Work around https://bugs.chromium.org/p/chromium/issues/detail?id=489206
  // which causes page_Offset and bounding client rects to use
  // different reference viewports and invalidate our calculations.
  if (chrome && android) { return -(document.body.getBoundingClientRect().left - parseInt(getComputedStyle(document.body).marginLeft)) }
  return window.pageXOffset || (document.documentElement || document.body).scrollLeft
}
function pageScrollY() {
  if (chrome && android) { return -(document.body.getBoundingClientRect().top - parseInt(getComputedStyle(document.body).marginTop)) }
  return window.pageYOffset || (document.documentElement || document.body).scrollTop
}

// Converts a {top, bottom, left, right} box from line-local
// coordinates into another coordinate system. Context may be one of
// "line", "div" (display.lineDiv), "local"./null (editor), "window",
// or "page".
function intoCoordSystem(cm, lineObj, rect, context, includeWidgets) {
  if (!includeWidgets && lineObj.widgets) { for (var i = 0; i < lineObj.widgets.length; ++i) { if (lineObj.widgets[i].above) {
    var size = widgetHeight(lineObj.widgets[i]);
    rect.top += size; rect.bottom += size;
  } } }
  if (context == "line") { return rect }
  if (!context) { context = "local"; }
  var yOff = heightAtLine(lineObj);
  if (context == "local") { yOff += paddingTop(cm.display); }
  else { yOff -= cm.display.viewOffset; }
  if (context == "page" || context == "window") {
    var lOff = cm.display.lineSpace.getBoundingClientRect();
    yOff += lOff.top + (context == "window" ? 0 : pageScrollY());
    var xOff = lOff.left + (context == "window" ? 0 : pageScrollX());
    rect.left += xOff; rect.right += xOff;
  }
  rect.top += yOff; rect.bottom += yOff;
  return rect
}

// Coverts a box from "div" coords to another coordinate system.
// Context may be "window", "page", "div", or "local"./null.
function fromCoordSystem(cm, coords, context) {
  if (context == "div") { return coords }
  var left = coords.left, top = coords.top;
  // First move into "page" coordinate system
  if (context == "page") {
    left -= pageScrollX();
    top -= pageScrollY();
  } else if (context == "local" || !context) {
    var localBox = cm.display.sizer.getBoundingClientRect();
    left += localBox.left;
    top += localBox.top;
  }

  var lineSpaceBox = cm.display.lineSpace.getBoundingClientRect();
  return {left: left - lineSpaceBox.left, top: top - lineSpaceBox.top}
}

function charCoords(cm, pos, context, lineObj, bias) {
  if (!lineObj) { lineObj = getLine(cm.doc, pos.line); }
  return intoCoordSystem(cm, lineObj, measureChar(cm, lineObj, pos.ch, bias), context)
}

// Returns a box for a given cursor position, which may have an
// 'other' property containing the position of the secondary cursor
// on a bidi boundary.
// A cursor Pos(line, char, "before") is on the same visual line as `char - 1`
// and after `char - 1` in writing order of `char - 1`
// A cursor Pos(line, char, "after") is on the same visual line as `char`
// and before `char` in writing order of `char`
// Examples (upper-case letters are RTL, lower-case are LTR):
//     Pos(0, 1, ...)
//     before   after
// ab     a|b     a|b
// aB     a|B     aB|
// Ab     |Ab     A|b
// AB     B|A     B|A
// Every position after the last character on a line is considered to stick
// to the last character on the line.
function cursorCoords(cm, pos, context, lineObj, preparedMeasure, varHeight) {
  lineObj = lineObj || getLine(cm.doc, pos.line);
  if (!preparedMeasure) { preparedMeasure = prepareMeasureForLine(cm, lineObj); }
  function get(ch, right) {
    var m = measureCharPrepared(cm, preparedMeasure, ch, right ? "right" : "left", varHeight);
    if (right) { m.left = m.right; } else { m.right = m.left; }
    return intoCoordSystem(cm, lineObj, m, context)
  }
  var order = getOrder(lineObj, cm.doc.direction), ch = pos.ch, sticky = pos.sticky;
  if (ch >= lineObj.text.length) {
    ch = lineObj.text.length;
    sticky = "before";
  } else if (ch <= 0) {
    ch = 0;
    sticky = "after";
  }
  if (!order) { return get(sticky == "before" ? ch - 1 : ch, sticky == "before") }

  function getBidi(ch, partPos, invert) {
    var part = order[partPos], right = (part.level % 2) != 0;
    return get(invert ? ch - 1 : ch, right != invert)
  }
  var partPos = getBidiPartAt(order, ch, sticky);
  var other = bidiOther;
  var val = getBidi(ch, partPos, sticky == "before");
  if (other != null) { val.other = getBidi(ch, other, sticky != "before"); }
  return val
}

// Used to cheaply estimate the coordinates for a position. Used for
// intermediate scroll updates.
function estimateCoords(cm, pos) {
  var left = 0;
  pos = clipPos(cm.doc, pos);
  if (!cm.options.lineWrapping) { left = charWidth(cm.display) * pos.ch; }
  var lineObj = getLine(cm.doc, pos.line);
  var top = heightAtLine(lineObj) + paddingTop(cm.display);
  return {left: left, right: left, top: top, bottom: top + lineObj.height}
}

// Positions returned by coordsChar contain some extra information.
// xRel is the relative x position of the input coordinates compared
// to the found position (so xRel > 0 means the coordinates are to
// the right of the character position, for example). When outside
// is true, that means the coordinates lie outside the line's
// vertical range.
function PosWithInfo(line, ch, sticky, outside, xRel) {
  var pos = Pos(line, ch, sticky);
  pos.xRel = xRel;
  if (outside) { pos.outside = true; }
  return pos
}

// Compute the character position closest to the given coordinates.
// Input must be lineSpace-local ("div" coordinate system).
function coordsChar(cm, x, y) {
  var doc = cm.doc;
  y += cm.display.viewOffset;
  if (y < 0) { return PosWithInfo(doc.first, 0, null, true, -1) }
  var lineN = lineAtHeight(doc, y), last = doc.first + doc.size - 1;
  if (lineN > last)
    { return PosWithInfo(doc.first + doc.size - 1, getLine(doc, last).text.length, null, true, 1) }
  if (x < 0) { x = 0; }

  var lineObj = getLine(doc, lineN);
  for (;;) {
    var found = coordsCharInner(cm, lineObj, lineN, x, y);
    var merged = collapsedSpanAtEnd(lineObj);
    var mergedPos = merged && merged.find(0, true);
    if (merged && (found.ch > mergedPos.from.ch || found.ch == mergedPos.from.ch && found.xRel > 0))
      { lineN = lineNo(lineObj = mergedPos.to.line); }
    else
      { return found }
  }
}

function wrappedLineExtent(cm, lineObj, preparedMeasure, y) {
  var measure = function (ch) { return intoCoordSystem(cm, lineObj, measureCharPrepared(cm, preparedMeasure, ch), "line"); };
  var end = lineObj.text.length;
  var begin = findFirst(function (ch) { return measure(ch - 1).bottom <= y; }, end, 0);
  end = findFirst(function (ch) { return measure(ch).top > y; }, begin, end);
  return {begin: begin, end: end}
}

function wrappedLineExtentChar(cm, lineObj, preparedMeasure, target) {
  var targetTop = intoCoordSystem(cm, lineObj, measureCharPrepared(cm, preparedMeasure, target), "line").top;
  return wrappedLineExtent(cm, lineObj, preparedMeasure, targetTop)
}

function coordsCharInner(cm, lineObj, lineNo$$1, x, y) {
  y -= heightAtLine(lineObj);
  var begin = 0, end = lineObj.text.length;
  var preparedMeasure = prepareMeasureForLine(cm, lineObj);
  var pos;
  var order = getOrder(lineObj, cm.doc.direction);
  if (order) {
    if (cm.options.lineWrapping) {
      var assign;
      ((assign = wrappedLineExtent(cm, lineObj, preparedMeasure, y), begin = assign.begin, end = assign.end, assign));
    }
    pos = new Pos(lineNo$$1, Math.floor(begin + (end - begin) / 2));
    var beginLeft = cursorCoords(cm, pos, "line", lineObj, preparedMeasure).left;
    var dir = beginLeft < x ? 1 : -1;
    var prevDiff, diff = beginLeft - x, prevPos;
    var steps = Math.ceil((end - begin) / 4);
    outer: do {
      prevDiff = diff;
      prevPos = pos;
      var i = 0;
      for (; i < steps; ++i) {
        var prevPos$1 = pos;
        pos = moveVisually(cm, lineObj, pos, dir);
        if (pos == null || pos.ch < begin || end <= (pos.sticky == "before" ? pos.ch - 1 : pos.ch)) {
          pos = prevPos$1;
          break outer
        }
      }
      diff = cursorCoords(cm, pos, "line", lineObj, preparedMeasure).left - x;
      if (steps > 1) {
        var diff_change_per_step = Math.abs(diff - prevDiff) / steps;
        steps = Math.min(steps, Math.ceil(Math.abs(diff) / diff_change_per_step));
        dir = diff < 0 ? 1 : -1;
      }
    } while (diff != 0 && (steps > 1 || ((dir < 0) != (diff < 0) && (Math.abs(diff) <= Math.abs(prevDiff)))))
    if (Math.abs(diff) > Math.abs(prevDiff)) {
      if ((diff < 0) == (prevDiff < 0)) { throw new Error("Broke out of infinite loop in coordsCharInner") }
      pos = prevPos;
    }
  } else {
    var ch = findFirst(function (ch) {
      var box = intoCoordSystem(cm, lineObj, measureCharPrepared(cm, preparedMeasure, ch), "line");
      if (box.top > y) {
        // For the cursor stickiness
        end = Math.min(ch, end);
        return true
      }
      else if (box.bottom <= y) { return false }
      else if (box.left > x) { return true }
      else if (box.right < x) { return false }
      else { return (x - box.left < box.right - x) }
    }, begin, end);
    ch = skipExtendingChars(lineObj.text, ch, 1);
    pos = new Pos(lineNo$$1, ch, ch == end ? "before" : "after");
  }
  var coords = cursorCoords(cm, pos, "line", lineObj, preparedMeasure);
  if (y < coords.top || coords.bottom < y) { pos.outside = true; }
  pos.xRel = x < coords.left ? -1 : (x > coords.right ? 1 : 0);
  return pos
}

var measureText;
// Compute the default text height.
function textHeight(display) {
  if (display.cachedTextHeight != null) { return display.cachedTextHeight }
  if (measureText == null) {
    measureText = elt("pre");
    // Measure a bunch of lines, for browsers that compute
    // fractional heights.
    for (var i = 0; i < 49; ++i) {
      measureText.appendChild(document.createTextNode("x"));
      measureText.appendChild(elt("br"));
    }
    measureText.appendChild(document.createTextNode("x"));
  }
  removeChildrenAndAdd(display.measure, measureText);
  var height = measureText.offsetHeight / 50;
  if (height > 3) { display.cachedTextHeight = height; }
  removeChildren(display.measure);
  return height || 1
}

// Compute the default character width.
function charWidth(display) {
  if (display.cachedCharWidth != null) { return display.cachedCharWidth }
  var anchor = elt("span", "xxxxxxxxxx");
  var pre = elt("pre", [anchor]);
  removeChildrenAndAdd(display.measure, pre);
  var rect = anchor.getBoundingClientRect(), width = (rect.right - rect.left) / 10;
  if (width > 2) { display.cachedCharWidth = width; }
  return width || 10
}

// Do a bulk-read of the DOM positions and sizes needed to draw the
// view, so that we don't interleave reading and writing to the DOM.
function getDimensions(cm) {
  var d = cm.display, left = {}, width = {};
  var gutterLeft = d.gutters.clientLeft;
  for (var n = d.gutters.firstChild, i = 0; n; n = n.nextSibling, ++i) {
    left[cm.options.gutters[i]] = n.offsetLeft + n.clientLeft + gutterLeft;
    width[cm.options.gutters[i]] = n.clientWidth;
  }
  return {fixedPos: compensateForHScroll(d),
          gutterTotalWidth: d.gutters.offsetWidth,
          gutterLeft: left,
          gutterWidth: width,
          wrapperWidth: d.wrapper.clientWidth}
}

// Computes display.scroller.scrollLeft + display.gutters.offsetWidth,
// but using getBoundingClientRect to get a sub-pixel-accurate
// result.
function compensateForHScroll(display) {
  return display.scroller.getBoundingClientRect().left - display.sizer.getBoundingClientRect().left
}

// Returns a function that estimates the height of a line, to use as
// first approximation until the line becomes visible (and is thus
// properly measurable).
function estimateHeight(cm) {
  var th = textHeight(cm.display), wrapping = cm.options.lineWrapping;
  var perLine = wrapping && Math.max(5, cm.display.scroller.clientWidth / charWidth(cm.display) - 3);
  return function (line) {
    if (lineIsHidden(cm.doc, line)) { return 0 }

    var widgetsHeight = 0;
    if (line.widgets) { for (var i = 0; i < line.widgets.length; i++) {
      if (line.widgets[i].height) { widgetsHeight += line.widgets[i].height; }
    } }

    if (wrapping)
      { return widgetsHeight + (Math.ceil(line.text.length / perLine) || 1) * th }
    else
      { return widgetsHeight + th }
  }
}

function estimateLineHeights(cm) {
  var doc = cm.doc, est = estimateHeight(cm);
  doc.iter(function (line) {
    var estHeight = est(line);
    if (estHeight != line.height) { updateLineHeight(line, estHeight); }
  });
}

// Given a mouse event, find the corresponding position. If liberal
// is false, it checks whether a gutter or scrollbar was clicked,
// and returns null if it was. forRect is used by rectangular
// selections, and tries to estimate a character position even for
// coordinates beyond the right of the text.
function posFromMouse(cm, e, liberal, forRect) {
  var display = cm.display;
  if (!liberal && e_target(e).getAttribute("cm-not-content") == "true") { return null }

  var x, y, space = display.lineSpace.getBoundingClientRect();
  // Fails unpredictably on IE[67] when mouse is dragged around quickly.
  try { x = e.clientX - space.left; y = e.clientY - space.top; }
  catch (e) { return null }
  var coords = coordsChar(cm, x, y), line;
  if (forRect && coords.xRel == 1 && (line = getLine(cm.doc, coords.line).text).length == coords.ch) {
    var colDiff = countColumn(line, line.length, cm.options.tabSize) - line.length;
    coords = Pos(coords.line, Math.max(0, Math.round((x - paddingH(cm.display).left) / charWidth(cm.display)) - colDiff));
  }
  return coords
}

// Find the view element corresponding to a given line. Return null
// when the line isn't visible.
function findViewIndex(cm, n) {
  if (n >= cm.display.viewTo) { return null }
  n -= cm.display.viewFrom;
  if (n < 0) { return null }
  var view = cm.display.view;
  for (var i = 0; i < view.length; i++) {
    n -= view[i].size;
    if (n < 0) { return i }
  }
}

function updateSelection(cm) {
  cm.display.input.showSelection(cm.display.input.prepareSelection());
}

function prepareSelection(cm, primary) {
  var doc = cm.doc, result = {};
  var curFragment = result.cursors = document.createDocumentFragment();
  var selFragment = result.selection = document.createDocumentFragment();

  for (var i = 0; i < doc.sel.ranges.length; i++) {
    if (primary === false && i == doc.sel.primIndex) { continue }
    var range$$1 = doc.sel.ranges[i];
    if (range$$1.from().line >= cm.display.viewTo || range$$1.to().line < cm.display.viewFrom) { continue }
    var collapsed = range$$1.empty();
    if (collapsed || cm.options.showCursorWhenSelecting)
      { drawSelectionCursor(cm, range$$1.head, curFragment); }
    if (!collapsed)
      { drawSelectionRange(cm, range$$1, selFragment); }
  }
  return result
}

// Draws a cursor for the given range
function drawSelectionCursor(cm, head, output) {
  var pos = cursorCoords(cm, head, "div", null, null, !cm.options.singleCursorHeightPerLine);

  var cursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor"));
  cursor.style.left = pos.left + "px";
  cursor.style.top = pos.top + "px";
  cursor.style.height = Math.max(0, pos.bottom - pos.top) * cm.options.cursorHeight + "px";

  if (pos.other) {
    // Secondary cursor, shown when on a 'jump' in bi-directional text
    var otherCursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor CodeMirror-secondarycursor"));
    otherCursor.style.display = "";
    otherCursor.style.left = pos.other.left + "px";
    otherCursor.style.top = pos.other.top + "px";
    otherCursor.style.height = (pos.other.bottom - pos.other.top) * .85 + "px";
  }
}

// Draws the given range as a highlighted selection
function drawSelectionRange(cm, range$$1, output) {
  var display = cm.display, doc = cm.doc;
  var fragment = document.createDocumentFragment();
  var padding = paddingH(cm.display), leftSide = padding.left;
  var rightSide = Math.max(display.sizerWidth, displayWidth(cm) - display.sizer.offsetLeft) - padding.right;

  function add(left, top, width, bottom) {
    if (top < 0) { top = 0; }
    top = Math.round(top);
    bottom = Math.round(bottom);
    fragment.appendChild(elt("div", null, "CodeMirror-selected", ("position: absolute; left: " + left + "px;\n                             top: " + top + "px; width: " + (width == null ? rightSide - left : width) + "px;\n                             height: " + (bottom - top) + "px")));
  }

  function drawForLine(line, fromArg, toArg) {
    var lineObj = getLine(doc, line);
    var lineLen = lineObj.text.length;
    var start, end;
    function coords(ch, bias) {
      return charCoords(cm, Pos(line, ch), "div", lineObj, bias)
    }

    iterateBidiSections(getOrder(lineObj, doc.direction), fromArg || 0, toArg == null ? lineLen : toArg, function (from, to, dir) {
      var leftPos = coords(from, "left"), rightPos, left, right;
      if (from == to) {
        rightPos = leftPos;
        left = right = leftPos.left;
      } else {
        rightPos = coords(to - 1, "right");
        if (dir == "rtl") { var tmp = leftPos; leftPos = rightPos; rightPos = tmp; }
        left = leftPos.left;
        right = rightPos.right;
      }
      if (fromArg == null && from == 0) { left = leftSide; }
      if (rightPos.top - leftPos.top > 3) { // Different lines, draw top part
        add(left, leftPos.top, null, leftPos.bottom);
        left = leftSide;
        if (leftPos.bottom < rightPos.top) { add(left, leftPos.bottom, null, rightPos.top); }
      }
      if (toArg == null && to == lineLen) { right = rightSide; }
      if (!start || leftPos.top < start.top || leftPos.top == start.top && leftPos.left < start.left)
        { start = leftPos; }
      if (!end || rightPos.bottom > end.bottom || rightPos.bottom == end.bottom && rightPos.right > end.right)
        { end = rightPos; }
      if (left < leftSide + 1) { left = leftSide; }
      add(left, rightPos.top, right - left, rightPos.bottom);
    });
    return {start: start, end: end}
  }

  var sFrom = range$$1.from(), sTo = range$$1.to();
  if (sFrom.line == sTo.line) {
    drawForLine(sFrom.line, sFrom.ch, sTo.ch);
  } else {
    var fromLine = getLine(doc, sFrom.line), toLine = getLine(doc, sTo.line);
    var singleVLine = visualLine(fromLine) == visualLine(toLine);
    var leftEnd = drawForLine(sFrom.line, sFrom.ch, singleVLine ? fromLine.text.length + 1 : null).end;
    var rightStart = drawForLine(sTo.line, singleVLine ? 0 : null, sTo.ch).start;
    if (singleVLine) {
      if (leftEnd.top < rightStart.top - 2) {
        add(leftEnd.right, leftEnd.top, null, leftEnd.bottom);
        add(leftSide, rightStart.top, rightStart.left, rightStart.bottom);
      } else {
        add(leftEnd.right, leftEnd.top, rightStart.left - leftEnd.right, leftEnd.bottom);
      }
    }
    if (leftEnd.bottom < rightStart.top)
      { add(leftSide, leftEnd.bottom, null, rightStart.top); }
  }

  output.appendChild(fragment);
}

// Cursor-blinking
function restartBlink(cm) {
  if (!cm.state.focused) { return }
  var display = cm.display;
  clearInterval(display.blinker);
  var on = true;
  display.cursorDiv.style.visibility = "";
  if (cm.options.cursorBlinkRate > 0)
    { display.blinker = setInterval(function () { return display.cursorDiv.style.visibility = (on = !on) ? "" : "hidden"; },
      cm.options.cursorBlinkRate); }
  else if (cm.options.cursorBlinkRate < 0)
    { display.cursorDiv.style.visibility = "hidden"; }
}

function ensureFocus(cm) {
  if (!cm.state.focused) { cm.display.input.focus(); onFocus(cm); }
}

function delayBlurEvent(cm) {
  cm.state.delayingBlurEvent = true;
  setTimeout(function () { if (cm.state.delayingBlurEvent) {
    cm.state.delayingBlurEvent = false;
    onBlur(cm);
  } }, 100);
}

function onFocus(cm, e) {
  if (cm.state.delayingBlurEvent) { cm.state.delayingBlurEvent = false; }

  if (cm.options.readOnly == "nocursor") { return }
  if (!cm.state.focused) {
    signal(cm, "focus", cm, e);
    cm.state.focused = true;
    addClass(cm.display.wrapper, "CodeMirror-focused");
    // This test prevents this from firing when a context
    // menu is closed (since the input reset would kill the
    // select-all detection hack)
    if (!cm.curOp && cm.display.selForContextMenu != cm.doc.sel) {
      cm.display.input.reset();
      if (webkit) { setTimeout(function () { return cm.display.input.reset(true); }, 20); } // Issue #1730
    }
    cm.display.input.receivedFocus();
  }
  restartBlink(cm);
}
function onBlur(cm, e) {
  if (cm.state.delayingBlurEvent) { return }

  if (cm.state.focused) {
    signal(cm, "blur", cm, e);
    cm.state.focused = false;
    rmClass(cm.display.wrapper, "CodeMirror-focused");
  }
  clearInterval(cm.display.blinker);
  setTimeout(function () { if (!cm.state.focused) { cm.display.shift = false; } }, 150);
}

// Read the actual heights of the rendered lines, and update their
// stored heights to match.
function updateHeightsInViewport(cm) {
  var display = cm.display;
  var prevBottom = display.lineDiv.offsetTop;
  for (var i = 0; i < display.view.length; i++) {
    var cur = display.view[i], height = (void 0);
    if (cur.hidden) { continue }
    if (ie && ie_version < 8) {
      var bot = cur.node.offsetTop + cur.node.offsetHeight;
      height = bot - prevBottom;
      prevBottom = bot;
    } else {
      var box = cur.node.getBoundingClientRect();
      height = box.bottom - box.top;
    }
    var diff = cur.line.height - height;
    if (height < 2) { height = textHeight(display); }
    if (diff > .001 || diff < -.001) {
      updateLineHeight(cur.line, height);
      updateWidgetHeight(cur.line);
      if (cur.rest) { for (var j = 0; j < cur.rest.length; j++)
        { updateWidgetHeight(cur.rest[j]); } }
    }
  }
}

// Read and store the height of line widgets associated with the
// given line.
function updateWidgetHeight(line) {
  if (line.widgets) { for (var i = 0; i < line.widgets.length; ++i)
    { line.widgets[i].height = line.widgets[i].node.parentNode.offsetHeight; } }
}

// Compute the lines that are visible in a given viewport (defaults
// the current scroll position). viewport may contain top,
// height, and ensure (see op.scrollToPos) properties.
function visibleLines(display, doc, viewport) {
  var top = viewport && viewport.top != null ? Math.max(0, viewport.top) : display.scroller.scrollTop;
  top = Math.floor(top - paddingTop(display));
  var bottom = viewport && viewport.bottom != null ? viewport.bottom : top + display.wrapper.clientHeight;

  var from = lineAtHeight(doc, top), to = lineAtHeight(doc, bottom);
  // Ensure is a {from: {line, ch}, to: {line, ch}} object, and
  // forces those lines into the viewport (if possible).
  if (viewport && viewport.ensure) {
    var ensureFrom = viewport.ensure.from.line, ensureTo = viewport.ensure.to.line;
    if (ensureFrom < from) {
      from = ensureFrom;
      to = lineAtHeight(doc, heightAtLine(getLine(doc, ensureFrom)) + display.wrapper.clientHeight);
    } else if (Math.min(ensureTo, doc.lastLine()) >= to) {
      from = lineAtHeight(doc, heightAtLine(getLine(doc, ensureTo)) - display.wrapper.clientHeight);
      to = ensureTo;
    }
  }
  return {from: from, to: Math.max(to, from + 1)}
}

// Re-align line numbers and gutter marks to compensate for
// horizontal scrolling.
function alignHorizontally(cm) {
  var display = cm.display, view = display.view;
  if (!display.alignWidgets && (!display.gutters.firstChild || !cm.options.fixedGutter)) { return }
  var comp = compensateForHScroll(display) - display.scroller.scrollLeft + cm.doc.scrollLeft;
  var gutterW = display.gutters.offsetWidth, left = comp + "px";
  for (var i = 0; i < view.length; i++) { if (!view[i].hidden) {
    if (cm.options.fixedGutter) {
      if (view[i].gutter)
        { view[i].gutter.style.left = left; }
      if (view[i].gutterBackground)
        { view[i].gutterBackground.style.left = left; }
    }
    var align = view[i].alignable;
    if (align) { for (var j = 0; j < align.length; j++)
      { align[j].style.left = left; } }
  } }
  if (cm.options.fixedGutter)
    { display.gutters.style.left = (comp + gutterW) + "px"; }
}

// Used to ensure that the line number gutter is still the right
// size for the current document size. Returns true when an update
// is needed.
function maybeUpdateLineNumberWidth(cm) {
  if (!cm.options.lineNumbers) { return false }
  var doc = cm.doc, last = lineNumberFor(cm.options, doc.first + doc.size - 1), display = cm.display;
  if (last.length != display.lineNumChars) {
    var test = display.measure.appendChild(elt("div", [elt("div", last)],
                                               "CodeMirror-linenumber CodeMirror-gutter-elt"));
    var innerW = test.firstChild.offsetWidth, padding = test.offsetWidth - innerW;
    display.lineGutter.style.width = "";
    display.lineNumInnerWidth = Math.max(innerW, display.lineGutter.offsetWidth - padding) + 1;
    display.lineNumWidth = display.lineNumInnerWidth + padding;
    display.lineNumChars = display.lineNumInnerWidth ? last.length : -1;
    display.lineGutter.style.width = display.lineNumWidth + "px";
    updateGutterSpace(cm);
    return true
  }
  return false
}

// SCROLLING THINGS INTO VIEW

// If an editor sits on the top or bottom of the window, partially
// scrolled out of view, this ensures that the cursor is visible.
function maybeScrollWindow(cm, rect) {
  if (signalDOMEvent(cm, "scrollCursorIntoView")) { return }

  var display = cm.display, box = display.sizer.getBoundingClientRect(), doScroll = null;
  if (rect.top + box.top < 0) { doScroll = true; }
  else if (rect.bottom + box.top > (window.innerHeight || document.documentElement.clientHeight)) { doScroll = false; }
  if (doScroll != null && !phantom) {
    var scrollNode = elt("div", "\u200b", null, ("position: absolute;\n                         top: " + (rect.top - display.viewOffset - paddingTop(cm.display)) + "px;\n                         height: " + (rect.bottom - rect.top + scrollGap(cm) + display.barHeight) + "px;\n                         left: " + (rect.left) + "px; width: " + (Math.max(2, rect.right - rect.left)) + "px;"));
    cm.display.lineSpace.appendChild(scrollNode);
    scrollNode.scrollIntoView(doScroll);
    cm.display.lineSpace.removeChild(scrollNode);
  }
}

// Scroll a given position into view (immediately), verifying that
// it actually became visible (as line heights are accurately
// measured, the position of something may 'drift' during drawing).
function scrollPosIntoView(cm, pos, end, margin) {
  if (margin == null) { margin = 0; }
  var rect;
  for (var limit = 0; limit < 5; limit++) {
    var changed = false;
    var coords = cursorCoords(cm, pos);
    var endCoords = !end || end == pos ? coords : cursorCoords(cm, end);
    rect = {left: Math.min(coords.left, endCoords.left),
            top: Math.min(coords.top, endCoords.top) - margin,
            right: Math.max(coords.left, endCoords.left),
            bottom: Math.max(coords.bottom, endCoords.bottom) + margin};
    var scrollPos = calculateScrollPos(cm, rect);
    var startTop = cm.doc.scrollTop, startLeft = cm.doc.scrollLeft;
    if (scrollPos.scrollTop != null) {
      updateScrollTop(cm, scrollPos.scrollTop);
      if (Math.abs(cm.doc.scrollTop - startTop) > 1) { changed = true; }
    }
    if (scrollPos.scrollLeft != null) {
      setScrollLeft(cm, scrollPos.scrollLeft);
      if (Math.abs(cm.doc.scrollLeft - startLeft) > 1) { changed = true; }
    }
    if (!changed) { break }
  }
  return rect
}

// Scroll a given set of coordinates into view (immediately).
function scrollIntoView(cm, rect) {
  var scrollPos = calculateScrollPos(cm, rect);
  if (scrollPos.scrollTop != null) { updateScrollTop(cm, scrollPos.scrollTop); }
  if (scrollPos.scrollLeft != null) { setScrollLeft(cm, scrollPos.scrollLeft); }
}

// Calculate a new scroll position needed to scroll the given
// rectangle into view. Returns an object with scrollTop and
// scrollLeft properties. When these are undefined, the
// vertical/horizontal position does not need to be adjusted.
function calculateScrollPos(cm, rect) {
  var display = cm.display, snapMargin = textHeight(cm.display);
  if (rect.top < 0) { rect.top = 0; }
  var screentop = cm.curOp && cm.curOp.scrollTop != null ? cm.curOp.scrollTop : display.scroller.scrollTop;
  var screen = displayHeight(cm), result = {};
  if (rect.bottom - rect.top > screen) { rect.bottom = rect.top + screen; }
  var docBottom = cm.doc.height + paddingVert(display);
  var atTop = rect.top < snapMargin, atBottom = rect.bottom > docBottom - snapMargin;
  if (rect.top < screentop) {
    result.scrollTop = atTop ? 0 : rect.top;
  } else if (rect.bottom > screentop + screen) {
    var newTop = Math.min(rect.top, (atBottom ? docBottom : rect.bottom) - screen);
    if (newTop != screentop) { result.scrollTop = newTop; }
  }

  var screenleft = cm.curOp && cm.curOp.scrollLeft != null ? cm.curOp.scrollLeft : display.scroller.scrollLeft;
  var screenw = displayWidth(cm) - (cm.options.fixedGutter ? display.gutters.offsetWidth : 0);
  var tooWide = rect.right - rect.left > screenw;
  if (tooWide) { rect.right = rect.left + screenw; }
  if (rect.left < 10)
    { result.scrollLeft = 0; }
  else if (rect.left < screenleft)
    { result.scrollLeft = Math.max(0, rect.left - (tooWide ? 0 : 10)); }
  else if (rect.right > screenw + screenleft - 3)
    { result.scrollLeft = rect.right + (tooWide ? 0 : 10) - screenw; }
  return result
}

// Store a relative adjustment to the scroll position in the current
// operation (to be applied when the operation finishes).
function addToScrollTop(cm, top) {
  if (top == null) { return }
  resolveScrollToPos(cm);
  cm.curOp.scrollTop = (cm.curOp.scrollTop == null ? cm.doc.scrollTop : cm.curOp.scrollTop) + top;
}

// Make sure that at the end of the operation the current cursor is
// shown.
function ensureCursorVisible(cm) {
  resolveScrollToPos(cm);
  var cur = cm.getCursor(), from = cur, to = cur;
  if (!cm.options.lineWrapping) {
    from = cur.ch ? Pos(cur.line, cur.ch - 1) : cur;
    to = Pos(cur.line, cur.ch + 1);
  }
  cm.curOp.scrollToPos = {from: from, to: to, margin: cm.options.cursorScrollMargin};
}

function scrollToCoords(cm, x, y) {
  if (x != null || y != null) { resolveScrollToPos(cm); }
  if (x != null) { cm.curOp.scrollLeft = x; }
  if (y != null) { cm.curOp.scrollTop = y; }
}

function scrollToRange(cm, range$$1) {
  resolveScrollToPos(cm);
  cm.curOp.scrollToPos = range$$1;
}

// When an operation has its scrollToPos property set, and another
// scroll action is applied before the end of the operation, this
// 'simulates' scrolling that position into view in a cheap way, so
// that the effect of intermediate scroll commands is not ignored.
function resolveScrollToPos(cm) {
  var range$$1 = cm.curOp.scrollToPos;
  if (range$$1) {
    cm.curOp.scrollToPos = null;
    var from = estimateCoords(cm, range$$1.from), to = estimateCoords(cm, range$$1.to);
    scrollToCoordsRange(cm, from, to, range$$1.margin);
  }
}

function scrollToCoordsRange(cm, from, to, margin) {
  var sPos = calculateScrollPos(cm, {
    left: Math.min(from.left, to.left),
    top: Math.min(from.top, to.top) - margin,
    right: Math.max(from.right, to.right),
    bottom: Math.max(from.bottom, to.bottom) + margin
  });
  scrollToCoords(cm, sPos.scrollLeft, sPos.scrollTop);
}

// Sync the scrollable area and scrollbars, ensure the viewport
// covers the visible area.
function updateScrollTop(cm, val) {
  if (Math.abs(cm.doc.scrollTop - val) < 2) { return }
  if (!gecko) { updateDisplaySimple(cm, {top: val}); }
  setScrollTop(cm, val, true);
  if (gecko) { updateDisplaySimple(cm); }
  startWorker(cm, 100);
}

function setScrollTop(cm, val, forceScroll) {
  val = Math.min(cm.display.scroller.scrollHeight - cm.display.scroller.clientHeight, val);
  if (cm.display.scroller.scrollTop == val && !forceScroll) { return }
  cm.doc.scrollTop = val;
  cm.display.scrollbars.setScrollTop(val);
  if (cm.display.scroller.scrollTop != val) { cm.display.scroller.scrollTop = val; }
}

// Sync scroller and scrollbar, ensure the gutter elements are
// aligned.
function setScrollLeft(cm, val, isScroller, forceScroll) {
  val = Math.min(val, cm.display.scroller.scrollWidth - cm.display.scroller.clientWidth);
  if ((isScroller ? val == cm.doc.scrollLeft : Math.abs(cm.doc.scrollLeft - val) < 2) && !forceScroll) { return }
  cm.doc.scrollLeft = val;
  alignHorizontally(cm);
  if (cm.display.scroller.scrollLeft != val) { cm.display.scroller.scrollLeft = val; }
  cm.display.scrollbars.setScrollLeft(val);
}

// SCROLLBARS

// Prepare DOM reads needed to update the scrollbars. Done in one
// shot to minimize update/measure roundtrips.
function measureForScrollbars(cm) {
  var d = cm.display, gutterW = d.gutters.offsetWidth;
  var docH = Math.round(cm.doc.height + paddingVert(cm.display));
  return {
    clientHeight: d.scroller.clientHeight,
    viewHeight: d.wrapper.clientHeight,
    scrollWidth: d.scroller.scrollWidth, clientWidth: d.scroller.clientWidth,
    viewWidth: d.wrapper.clientWidth,
    barLeft: cm.options.fixedGutter ? gutterW : 0,
    docHeight: docH,
    scrollHeight: docH + scrollGap(cm) + d.barHeight,
    nativeBarWidth: d.nativeBarWidth,
    gutterWidth: gutterW
  }
}

var NativeScrollbars = function(place, scroll, cm) {
  this.cm = cm;
  var vert = this.vert = elt("div", [elt("div", null, null, "min-width: 1px")], "CodeMirror-vscrollbar");
  var horiz = this.horiz = elt("div", [elt("div", null, null, "height: 100%; min-height: 1px")], "CodeMirror-hscrollbar");
  place(vert); place(horiz);

  on(vert, "scroll", function () {
    if (vert.clientHeight) { scroll(vert.scrollTop, "vertical"); }
  });
  on(horiz, "scroll", function () {
    if (horiz.clientWidth) { scroll(horiz.scrollLeft, "horizontal"); }
  });

  this.checkedZeroWidth = false;
  // Need to set a minimum width to see the scrollbar on IE7 (but must not set it on IE8).
  if (ie && ie_version < 8) { this.horiz.style.minHeight = this.vert.style.minWidth = "18px"; }
};

NativeScrollbars.prototype.update = function (measure) {
  var needsH = measure.scrollWidth > measure.clientWidth + 1;
  var needsV = measure.scrollHeight > measure.clientHeight + 1;
  var sWidth = measure.nativeBarWidth;

  if (needsV) {
    this.vert.style.display = "block";
    this.vert.style.bottom = needsH ? sWidth + "px" : "0";
    var totalHeight = measure.viewHeight - (needsH ? sWidth : 0);
    // A bug in IE8 can cause this value to be negative, so guard it.
    this.vert.firstChild.style.height =
      Math.max(0, measure.scrollHeight - measure.clientHeight + totalHeight) + "px";
  } else {
    this.vert.style.display = "";
    this.vert.firstChild.style.height = "0";
  }

  if (needsH) {
    this.horiz.style.display = "block";
    this.horiz.style.right = needsV ? sWidth + "px" : "0";
    this.horiz.style.left = measure.barLeft + "px";
    var totalWidth = measure.viewWidth - measure.barLeft - (needsV ? sWidth : 0);
    this.horiz.firstChild.style.width =
      Math.max(0, measure.scrollWidth - measure.clientWidth + totalWidth) + "px";
  } else {
    this.horiz.style.display = "";
    this.horiz.firstChild.style.width = "0";
  }

  if (!this.checkedZeroWidth && measure.clientHeight > 0) {
    if (sWidth == 0) { this.zeroWidthHack(); }
    this.checkedZeroWidth = true;
  }

  return {right: needsV ? sWidth : 0, bottom: needsH ? sWidth : 0}
};

NativeScrollbars.prototype.setScrollLeft = function (pos) {
  if (this.horiz.scrollLeft != pos) { this.horiz.scrollLeft = pos; }
  if (this.disableHoriz) { this.enableZeroWidthBar(this.horiz, this.disableHoriz, "horiz"); }
};

NativeScrollbars.prototype.setScrollTop = function (pos) {
  if (this.vert.scrollTop != pos) { this.vert.scrollTop = pos; }
  if (this.disableVert) { this.enableZeroWidthBar(this.vert, this.disableVert, "vert"); }
};

NativeScrollbars.prototype.zeroWidthHack = function () {
  var w = mac && !mac_geMountainLion ? "12px" : "18px";
  this.horiz.style.height = this.vert.style.width = w;
  this.horiz.style.pointerEvents = this.vert.style.pointerEvents = "none";
  this.disableHoriz = new Delayed;
  this.disableVert = new Delayed;
};

NativeScrollbars.prototype.enableZeroWidthBar = function (bar, delay, type) {
  bar.style.pointerEvents = "auto";
  function maybeDisable() {
    // To find out whether the scrollbar is still visible, we
    // check whether the element under the pixel in the bottom
    // right corner of the scrollbar box is the scrollbar box
    // itself (when the bar is still visible) or its filler child
    // (when the bar is hidden). If it is still visible, we keep
    // it enabled, if it's hidden, we disable pointer events.
    var box = bar.getBoundingClientRect();
    var elt$$1 = type == "vert" ? document.elementFromPoint(box.right - 1, (box.top + box.bottom) / 2)
        : document.elementFromPoint((box.right + box.left) / 2, box.bottom - 1);
    if (elt$$1 != bar) { bar.style.pointerEvents = "none"; }
    else { delay.set(1000, maybeDisable); }
  }
  delay.set(1000, maybeDisable);
};

NativeScrollbars.prototype.clear = function () {
  var parent = this.horiz.parentNode;
  parent.removeChild(this.horiz);
  parent.removeChild(this.vert);
};

var NullScrollbars = function () {};

NullScrollbars.prototype.update = function () { return {bottom: 0, right: 0} };
NullScrollbars.prototype.setScrollLeft = function () {};
NullScrollbars.prototype.setScrollTop = function () {};
NullScrollbars.prototype.clear = function () {};

function updateScrollbars(cm, measure) {
  if (!measure) { measure = measureForScrollbars(cm); }
  var startWidth = cm.display.barWidth, startHeight = cm.display.barHeight;
  updateScrollbarsInner(cm, measure);
  for (var i = 0; i < 4 && startWidth != cm.display.barWidth || startHeight != cm.display.barHeight; i++) {
    if (startWidth != cm.display.barWidth && cm.options.lineWrapping)
      { updateHeightsInViewport(cm); }
    updateScrollbarsInner(cm, measureForScrollbars(cm));
    startWidth = cm.display.barWidth; startHeight = cm.display.barHeight;
  }
}

// Re-synchronize the fake scrollbars with the actual size of the
// content.
function updateScrollbarsInner(cm, measure) {
  var d = cm.display;
  var sizes = d.scrollbars.update(measure);

  d.sizer.style.paddingRight = (d.barWidth = sizes.right) + "px";
  d.sizer.style.paddingBottom = (d.barHeight = sizes.bottom) + "px";
  d.heightForcer.style.borderBottom = sizes.bottom + "px solid transparent";

  if (sizes.right && sizes.bottom) {
    d.scrollbarFiller.style.display = "block";
    d.scrollbarFiller.style.height = sizes.bottom + "px";
    d.scrollbarFiller.style.width = sizes.right + "px";
  } else { d.scrollbarFiller.style.display = ""; }
  if (sizes.bottom && cm.options.coverGutterNextToScrollbar && cm.options.fixedGutter) {
    d.gutterFiller.style.display = "block";
    d.gutterFiller.style.height = sizes.bottom + "px";
    d.gutterFiller.style.width = measure.gutterWidth + "px";
  } else { d.gutterFiller.style.display = ""; }
}

var scrollbarModel = {"native": NativeScrollbars, "null": NullScrollbars};

function initScrollbars(cm) {
  if (cm.display.scrollbars) {
    cm.display.scrollbars.clear();
    if (cm.display.scrollbars.addClass)
      { rmClass(cm.display.wrapper, cm.display.scrollbars.addClass); }
  }

  cm.display.scrollbars = new scrollbarModel[cm.options.scrollbarStyle](function (node) {
    cm.display.wrapper.insertBefore(node, cm.display.scrollbarFiller);
    // Prevent clicks in the scrollbars from killing focus
    on(node, "mousedown", function () {
      if (cm.state.focused) { setTimeout(function () { return cm.display.input.focus(); }, 0); }
    });
    node.setAttribute("cm-not-content", "true");
  }, function (pos, axis) {
    if (axis == "horizontal") { setScrollLeft(cm, pos); }
    else { updateScrollTop(cm, pos); }
  }, cm);
  if (cm.display.scrollbars.addClass)
    { addClass(cm.display.wrapper, cm.display.scrollbars.addClass); }
}

// Operations are used to wrap a series of changes to the editor
// state in such a way that each change won't have to update the
// cursor and display (which would be awkward, slow, and
// error-prone). Instead, display updates are batched and then all
// combined and executed at once.

var nextOpId = 0;
// Start a new operation.
function startOperation(cm) {
  cm.curOp = {
    cm: cm,
    viewChanged: false,      // Flag that indicates that lines might need to be redrawn
    startHeight: cm.doc.height, // Used to detect need to update scrollbar
    forceUpdate: false,      // Used to force a redraw
    updateInput: null,       // Whether to reset the input textarea
    typing: false,           // Whether this reset should be careful to leave existing text (for compositing)
    changeObjs: null,        // Accumulated changes, for firing change events
    cursorActivityHandlers: null, // Set of handlers to fire cursorActivity on
    cursorActivityCalled: 0, // Tracks which cursorActivity handlers have been called already
    selectionChanged: false, // Whether the selection needs to be redrawn
    updateMaxLine: false,    // Set when the widest line needs to be determined anew
    scrollLeft: null, scrollTop: null, // Intermediate scroll position, not pushed to DOM yet
    scrollToPos: null,       // Used to scroll to a specific position
    focus: false,
    id: ++nextOpId           // Unique ID
  };
  pushOperation(cm.curOp);
}

// Finish an operation, updating the display and signalling delayed events
function endOperation(cm) {
  var op = cm.curOp;
  finishOperation(op, function (group) {
    for (var i = 0; i < group.ops.length; i++)
      { group.ops[i].cm.curOp = null; }
    endOperations(group);
  });
}

// The DOM updates done when an operation finishes are batched so
// that the minimum number of relayouts are required.
function endOperations(group) {
  var ops = group.ops;
  for (var i = 0; i < ops.length; i++) // Read DOM
    { endOperation_R1(ops[i]); }
  for (var i$1 = 0; i$1 < ops.length; i$1++) // Write DOM (maybe)
    { endOperation_W1(ops[i$1]); }
  for (var i$2 = 0; i$2 < ops.length; i$2++) // Read DOM
    { endOperation_R2(ops[i$2]); }
  for (var i$3 = 0; i$3 < ops.length; i$3++) // Write DOM (maybe)
    { endOperation_W2(ops[i$3]); }
  for (var i$4 = 0; i$4 < ops.length; i$4++) // Read DOM
    { endOperation_finish(ops[i$4]); }
}

function endOperation_R1(op) {
  var cm = op.cm, display = cm.display;
  maybeClipScrollbars(cm);
  if (op.updateMaxLine) { findMaxLine(cm); }

  op.mustUpdate = op.viewChanged || op.forceUpdate || op.scrollTop != null ||
    op.scrollToPos && (op.scrollToPos.from.line < display.viewFrom ||
                       op.scrollToPos.to.line >= display.viewTo) ||
    display.maxLineChanged && cm.options.lineWrapping;
  op.update = op.mustUpdate &&
    new DisplayUpdate(cm, op.mustUpdate && {top: op.scrollTop, ensure: op.scrollToPos}, op.forceUpdate);
}

function endOperation_W1(op) {
  op.updatedDisplay = op.mustUpdate && updateDisplayIfNeeded(op.cm, op.update);
}

function endOperation_R2(op) {
  var cm = op.cm, display = cm.display;
  if (op.updatedDisplay) { updateHeightsInViewport(cm); }

  op.barMeasure = measureForScrollbars(cm);

  // If the max line changed since it was last measured, measure it,
  // and ensure the document's width matches it.
  // updateDisplay_W2 will use these properties to do the actual resizing
  if (display.maxLineChanged && !cm.options.lineWrapping) {
    op.adjustWidthTo = measureChar(cm, display.maxLine, display.maxLine.text.length).left + 3;
    cm.display.sizerWidth = op.adjustWidthTo;
    op.barMeasure.scrollWidth =
      Math.max(display.scroller.clientWidth, display.sizer.offsetLeft + op.adjustWidthTo + scrollGap(cm) + cm.display.barWidth);
    op.maxScrollLeft = Math.max(0, display.sizer.offsetLeft + op.adjustWidthTo - displayWidth(cm));
  }

  if (op.updatedDisplay || op.selectionChanged)
    { op.preparedSelection = display.input.prepareSelection(op.focus); }
}

function endOperation_W2(op) {
  var cm = op.cm;

  if (op.adjustWidthTo != null) {
    cm.display.sizer.style.minWidth = op.adjustWidthTo + "px";
    if (op.maxScrollLeft < cm.doc.scrollLeft)
      { setScrollLeft(cm, Math.min(cm.display.scroller.scrollLeft, op.maxScrollLeft), true); }
    cm.display.maxLineChanged = false;
  }

  var takeFocus = op.focus && op.focus == activeElt() && (!document.hasFocus || document.hasFocus());
  if (op.preparedSelection)
    { cm.display.input.showSelection(op.preparedSelection, takeFocus); }
  if (op.updatedDisplay || op.startHeight != cm.doc.height)
    { updateScrollbars(cm, op.barMeasure); }
  if (op.updatedDisplay)
    { setDocumentHeight(cm, op.barMeasure); }

  if (op.selectionChanged) { restartBlink(cm); }

  if (cm.state.focused && op.updateInput)
    { cm.display.input.reset(op.typing); }
  if (takeFocus) { ensureFocus(op.cm); }
}

function endOperation_finish(op) {
  var cm = op.cm, display = cm.display, doc = cm.doc;

  if (op.updatedDisplay) { postUpdateDisplay(cm, op.update); }

  // Abort mouse wheel delta measurement, when scrolling explicitly
  if (display.wheelStartX != null && (op.scrollTop != null || op.scrollLeft != null || op.scrollToPos))
    { display.wheelStartX = display.wheelStartY = null; }

  // Propagate the scroll position to the actual DOM scroller
  if (op.scrollTop != null) { setScrollTop(cm, op.scrollTop, op.forceScroll); }

  if (op.scrollLeft != null) { setScrollLeft(cm, op.scrollLeft, true, true); }
  // If we need to scroll a specific position into view, do so.
  if (op.scrollToPos) {
    var rect = scrollPosIntoView(cm, clipPos(doc, op.scrollToPos.from),
                                 clipPos(doc, op.scrollToPos.to), op.scrollToPos.margin);
    maybeScrollWindow(cm, rect);
  }

  // Fire events for markers that are hidden/unidden by editing or
  // undoing
  var hidden = op.maybeHiddenMarkers, unhidden = op.maybeUnhiddenMarkers;
  if (hidden) { for (var i = 0; i < hidden.length; ++i)
    { if (!hidden[i].lines.length) { signal(hidden[i], "hide"); } } }
  if (unhidden) { for (var i$1 = 0; i$1 < unhidden.length; ++i$1)
    { if (unhidden[i$1].lines.length) { signal(unhidden[i$1], "unhide"); } } }

  if (display.wrapper.offsetHeight)
    { doc.scrollTop = cm.display.scroller.scrollTop; }

  // Fire change events, and delayed event handlers
  if (op.changeObjs)
    { signal(cm, "changes", cm, op.changeObjs); }
  if (op.update)
    { op.update.finish(); }
}

// Run the given function in an operation
function runInOp(cm, f) {
  if (cm.curOp) { return f() }
  startOperation(cm);
  try { return f() }
  finally { endOperation(cm); }
}
// Wraps a function in an operation. Returns the wrapped function.
function operation(cm, f) {
  return function() {
    if (cm.curOp) { return f.apply(cm, arguments) }
    startOperation(cm);
    try { return f.apply(cm, arguments) }
    finally { endOperation(cm); }
  }
}
// Used to add methods to editor and doc instances, wrapping them in
// operations.
function methodOp(f) {
  return function() {
    if (this.curOp) { return f.apply(this, arguments) }
    startOperation(this);
    try { return f.apply(this, arguments) }
    finally { endOperation(this); }
  }
}
function docMethodOp(f) {
  return function() {
    var cm = this.cm;
    if (!cm || cm.curOp) { return f.apply(this, arguments) }
    startOperation(cm);
    try { return f.apply(this, arguments) }
    finally { endOperation(cm); }
  }
}

// Updates the display.view data structure for a given change to the
// document. From and to are in pre-change coordinates. Lendiff is
// the amount of lines added or subtracted by the change. This is
// used for changes that span multiple lines, or change the way
// lines are divided into visual lines. regLineChange (below)
// registers single-line changes.
function regChange(cm, from, to, lendiff) {
  if (from == null) { from = cm.doc.first; }
  if (to == null) { to = cm.doc.first + cm.doc.size; }
  if (!lendiff) { lendiff = 0; }

  var display = cm.display;
  if (lendiff && to < display.viewTo &&
      (display.updateLineNumbers == null || display.updateLineNumbers > from))
    { display.updateLineNumbers = from; }

  cm.curOp.viewChanged = true;

  if (from >= display.viewTo) { // Change after
    if (sawCollapsedSpans && visualLineNo(cm.doc, from) < display.viewTo)
      { resetView(cm); }
  } else if (to <= display.viewFrom) { // Change before
    if (sawCollapsedSpans && visualLineEndNo(cm.doc, to + lendiff) > display.viewFrom) {
      resetView(cm);
    } else {
      display.viewFrom += lendiff;
      display.viewTo += lendiff;
    }
  } else if (from <= display.viewFrom && to >= display.viewTo) { // Full overlap
    resetView(cm);
  } else if (from <= display.viewFrom) { // Top overlap
    var cut = viewCuttingPoint(cm, to, to + lendiff, 1);
    if (cut) {
      display.view = display.view.slice(cut.index);
      display.viewFrom = cut.lineN;
      display.viewTo += lendiff;
    } else {
      resetView(cm);
    }
  } else if (to >= display.viewTo) { // Bottom overlap
    var cut$1 = viewCuttingPoint(cm, from, from, -1);
    if (cut$1) {
      display.view = display.view.slice(0, cut$1.index);
      display.viewTo = cut$1.lineN;
    } else {
      resetView(cm);
    }
  } else { // Gap in the middle
    var cutTop = viewCuttingPoint(cm, from, from, -1);
    var cutBot = viewCuttingPoint(cm, to, to + lendiff, 1);
    if (cutTop && cutBot) {
      display.view = display.view.slice(0, cutTop.index)
        .concat(buildViewArray(cm, cutTop.lineN, cutBot.lineN))
        .concat(display.view.slice(cutBot.index));
      display.viewTo += lendiff;
    } else {
      resetView(cm);
    }
  }

  var ext = display.externalMeasured;
  if (ext) {
    if (to < ext.lineN)
      { ext.lineN += lendiff; }
    else if (from < ext.lineN + ext.size)
      { display.externalMeasured = null; }
  }
}

// Register a change to a single line. Type must be one of "text",
// "gutter", "class", "widget"
function regLineChange(cm, line, type) {
  cm.curOp.viewChanged = true;
  var display = cm.display, ext = cm.display.externalMeasured;
  if (ext && line >= ext.lineN && line < ext.lineN + ext.size)
    { display.externalMeasured = null; }

  if (line < display.viewFrom || line >= display.viewTo) { return }
  var lineView = display.view[findViewIndex(cm, line)];
  if (lineView.node == null) { return }
  var arr = lineView.changes || (lineView.changes = []);
  if (indexOf(arr, type) == -1) { arr.push(type); }
}

// Clear the view.
function resetView(cm) {
  cm.display.viewFrom = cm.display.viewTo = cm.doc.first;
  cm.display.view = [];
  cm.display.viewOffset = 0;
}

function viewCuttingPoint(cm, oldN, newN, dir) {
  var index = findViewIndex(cm, oldN), diff, view = cm.display.view;
  if (!sawCollapsedSpans || newN == cm.doc.first + cm.doc.size)
    { return {index: index, lineN: newN} }
  var n = cm.display.viewFrom;
  for (var i = 0; i < index; i++)
    { n += view[i].size; }
  if (n != oldN) {
    if (dir > 0) {
      if (index == view.length - 1) { return null }
      diff = (n + view[index].size) - oldN;
      index++;
    } else {
      diff = n - oldN;
    }
    oldN += diff; newN += diff;
  }
  while (visualLineNo(cm.doc, newN) != newN) {
    if (index == (dir < 0 ? 0 : view.length - 1)) { return null }
    newN += dir * view[index - (dir < 0 ? 1 : 0)].size;
    index += dir;
  }
  return {index: index, lineN: newN}
}

// Force the view to cover a given range, adding empty view element
// or clipping off existing ones as needed.
function adjustView(cm, from, to) {
  var display = cm.display, view = display.view;
  if (view.length == 0 || from >= display.viewTo || to <= display.viewFrom) {
    display.view = buildViewArray(cm, from, to);
    display.viewFrom = from;
  } else {
    if (display.viewFrom > from)
      { display.view = buildViewArray(cm, from, display.viewFrom).concat(display.view); }
    else if (display.viewFrom < from)
      { display.view = display.view.slice(findViewIndex(cm, from)); }
    display.viewFrom = from;
    if (display.viewTo < to)
      { display.view = display.view.concat(buildViewArray(cm, display.viewTo, to)); }
    else if (display.viewTo > to)
      { display.view = display.view.slice(0, findViewIndex(cm, to)); }
  }
  display.viewTo = to;
}

// Count the number of lines in the view whose DOM representation is
// out of date (or nonexistent).
function countDirtyView(cm) {
  var view = cm.display.view, dirty = 0;
  for (var i = 0; i < view.length; i++) {
    var lineView = view[i];
    if (!lineView.hidden && (!lineView.node || lineView.changes)) { ++dirty; }
  }
  return dirty
}

// HIGHLIGHT WORKER

function startWorker(cm, time) {
  if (cm.doc.highlightFrontier < cm.display.viewTo)
    { cm.state.highlight.set(time, bind(highlightWorker, cm)); }
}

function highlightWorker(cm) {
  var doc = cm.doc;
  if (doc.highlightFrontier >= cm.display.viewTo) { return }
  var end = +new Date + cm.options.workTime;
  var context = getContextBefore(cm, doc.highlightFrontier);
  var changedLines = [];

  doc.iter(context.line, Math.min(doc.first + doc.size, cm.display.viewTo + 500), function (line) {
    if (context.line >= cm.display.viewFrom) { // Visible
      var oldStyles = line.styles;
      var resetState = line.text.length > cm.options.maxHighlightLength ? copyState(doc.mode, context.state) : null;
      var highlighted = highlightLine(cm, line, context, true);
      if (resetState) { context.state = resetState; }
      line.styles = highlighted.styles;
      var oldCls = line.styleClasses, newCls = highlighted.classes;
      if (newCls) { line.styleClasses = newCls; }
      else if (oldCls) { line.styleClasses = null; }
      var ischange = !oldStyles || oldStyles.length != line.styles.length ||
        oldCls != newCls && (!oldCls || !newCls || oldCls.bgClass != newCls.bgClass || oldCls.textClass != newCls.textClass);
      for (var i = 0; !ischange && i < oldStyles.length; ++i) { ischange = oldStyles[i] != line.styles[i]; }
      if (ischange) { changedLines.push(context.line); }
      line.stateAfter = context.save();
      context.nextLine();
    } else {
      if (line.text.length <= cm.options.maxHighlightLength)
        { processLine(cm, line.text, context); }
      line.stateAfter = context.line % 5 == 0 ? context.save() : null;
      context.nextLine();
    }
    if (+new Date > end) {
      startWorker(cm, cm.options.workDelay);
      return true
    }
  });
  doc.highlightFrontier = context.line;
  doc.modeFrontier = Math.max(doc.modeFrontier, context.line);
  if (changedLines.length) { runInOp(cm, function () {
    for (var i = 0; i < changedLines.length; i++)
      { regLineChange(cm, changedLines[i], "text"); }
  }); }
}

// DISPLAY DRAWING

var DisplayUpdate = function(cm, viewport, force) {
  var display = cm.display;

  this.viewport = viewport;
  // Store some values that we'll need later (but don't want to force a relayout for)
  this.visible = visibleLines(display, cm.doc, viewport);
  this.editorIsHidden = !display.wrapper.offsetWidth;
  this.wrapperHeight = display.wrapper.clientHeight;
  this.wrapperWidth = display.wrapper.clientWidth;
  this.oldDisplayWidth = displayWidth(cm);
  this.force = force;
  this.dims = getDimensions(cm);
  this.events = [];
};

DisplayUpdate.prototype.signal = function (emitter, type) {
  if (hasHandler(emitter, type))
    { this.events.push(arguments); }
};
DisplayUpdate.prototype.finish = function () {
    var this$1 = this;

  for (var i = 0; i < this.events.length; i++)
    { signal.apply(null, this$1.events[i]); }
};

function maybeClipScrollbars(cm) {
  var display = cm.display;
  if (!display.scrollbarsClipped && display.scroller.offsetWidth) {
    display.nativeBarWidth = display.scroller.offsetWidth - display.scroller.clientWidth;
    display.heightForcer.style.height = scrollGap(cm) + "px";
    display.sizer.style.marginBottom = -display.nativeBarWidth + "px";
    display.sizer.style.borderRightWidth = scrollGap(cm) + "px";
    display.scrollbarsClipped = true;
  }
}

function selectionSnapshot(cm) {
  if (cm.hasFocus()) { return null }
  var active = activeElt();
  if (!active || !contains(cm.display.lineDiv, active)) { return null }
  var result = {activeElt: active};
  if (window.getSelection) {
    var sel = window.getSelection();
    if (sel.anchorNode && sel.extend && contains(cm.display.lineDiv, sel.anchorNode)) {
      result.anchorNode = sel.anchorNode;
      result.anchorOffset = sel.anchorOffset;
      result.focusNode = sel.focusNode;
      result.focusOffset = sel.focusOffset;
    }
  }
  return result
}

function restoreSelection(snapshot) {
  if (!snapshot || !snapshot.activeElt || snapshot.activeElt == activeElt()) { return }
  snapshot.activeElt.focus();
  if (snapshot.anchorNode && contains(document.body, snapshot.anchorNode) && contains(document.body, snapshot.focusNode)) {
    var sel = window.getSelection(), range$$1 = document.createRange();
    range$$1.setEnd(snapshot.anchorNode, snapshot.anchorOffset);
    range$$1.collapse(false);
    sel.removeAllRanges();
    sel.addRange(range$$1);
    sel.extend(snapshot.focusNode, snapshot.focusOffset);
  }
}

// Does the actual updating of the line display. Bails out
// (returning false) when there is nothing to be done and forced is
// false.
function updateDisplayIfNeeded(cm, update) {
  var display = cm.display, doc = cm.doc;

  if (update.editorIsHidden) {
    resetView(cm);
    return false
  }

  // Bail out if the visible area is already rendered and nothing changed.
  if (!update.force &&
      update.visible.from >= display.viewFrom && update.visible.to <= display.viewTo &&
      (display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo) &&
      display.renderedView == display.view && countDirtyView(cm) == 0)
    { return false }

  if (maybeUpdateLineNumberWidth(cm)) {
    resetView(cm);
    update.dims = getDimensions(cm);
  }

  // Compute a suitable new viewport (from & to)
  var end = doc.first + doc.size;
  var from = Math.max(update.visible.from - cm.options.viewportMargin, doc.first);
  var to = Math.min(end, update.visible.to + cm.options.viewportMargin);
  if (display.viewFrom < from && from - display.viewFrom < 20) { from = Math.max(doc.first, display.viewFrom); }
  if (display.viewTo > to && display.viewTo - to < 20) { to = Math.min(end, display.viewTo); }
  if (sawCollapsedSpans) {
    from = visualLineNo(cm.doc, from);
    to = visualLineEndNo(cm.doc, to);
  }

  var different = from != display.viewFrom || to != display.viewTo ||
    display.lastWrapHeight != update.wrapperHeight || display.lastWrapWidth != update.wrapperWidth;
  adjustView(cm, from, to);

  display.viewOffset = heightAtLine(getLine(cm.doc, display.viewFrom));
  // Position the mover div to align with the current scroll position
  cm.display.mover.style.top = display.viewOffset + "px";

  var toUpdate = countDirtyView(cm);
  if (!different && toUpdate == 0 && !update.force && display.renderedView == display.view &&
      (display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo))
    { return false }

  // For big changes, we hide the enclosing element during the
  // update, since that speeds up the operations on most browsers.
  var selSnapshot = selectionSnapshot(cm);
  if (toUpdate > 4) { display.lineDiv.style.display = "none"; }
  patchDisplay(cm, display.updateLineNumbers, update.dims);
  if (toUpdate > 4) { display.lineDiv.style.display = ""; }
  display.renderedView = display.view;
  // There might have been a widget with a focused element that got
  // hidden or updated, if so re-focus it.
  restoreSelection(selSnapshot);

  // Prevent selection and cursors from interfering with the scroll
  // width and height.
  removeChildren(display.cursorDiv);
  removeChildren(display.selectionDiv);
  display.gutters.style.height = display.sizer.style.minHeight = 0;

  if (different) {
    display.lastWrapHeight = update.wrapperHeight;
    display.lastWrapWidth = update.wrapperWidth;
    startWorker(cm, 400);
  }

  display.updateLineNumbers = null;

  return true
}

function postUpdateDisplay(cm, update) {
  var viewport = update.viewport;

  for (var first = true;; first = false) {
    if (!first || !cm.options.lineWrapping || update.oldDisplayWidth == displayWidth(cm)) {
      // Clip forced viewport to actual scrollable area.
      if (viewport && viewport.top != null)
        { viewport = {top: Math.min(cm.doc.height + paddingVert(cm.display) - displayHeight(cm), viewport.top)}; }
      // Updated line heights might result in the drawn area not
      // actually covering the viewport. Keep looping until it does.
      update.visible = visibleLines(cm.display, cm.doc, viewport);
      if (update.visible.from >= cm.display.viewFrom && update.visible.to <= cm.display.viewTo)
        { break }
    }
    if (!updateDisplayIfNeeded(cm, update)) { break }
    updateHeightsInViewport(cm);
    var barMeasure = measureForScrollbars(cm);
    updateSelection(cm);
    updateScrollbars(cm, barMeasure);
    setDocumentHeight(cm, barMeasure);
    update.force = false;
  }

  update.signal(cm, "update", cm);
  if (cm.display.viewFrom != cm.display.reportedViewFrom || cm.display.viewTo != cm.display.reportedViewTo) {
    update.signal(cm, "viewportChange", cm, cm.display.viewFrom, cm.display.viewTo);
    cm.display.reportedViewFrom = cm.display.viewFrom; cm.display.reportedViewTo = cm.display.viewTo;
  }
}

function updateDisplaySimple(cm, viewport) {
  var update = new DisplayUpdate(cm, viewport);
  if (updateDisplayIfNeeded(cm, update)) {
    updateHeightsInViewport(cm);
    postUpdateDisplay(cm, update);
    var barMeasure = measureForScrollbars(cm);
    updateSelection(cm);
    updateScrollbars(cm, barMeasure);
    setDocumentHeight(cm, barMeasure);
    update.finish();
  }
}

// Sync the actual display DOM structure with display.view, removing
// nodes for lines that are no longer in view, and creating the ones
// that are not there yet, and updating the ones that are out of
// date.
function patchDisplay(cm, updateNumbersFrom, dims) {
  var display = cm.display, lineNumbers = cm.options.lineNumbers;
  var container = display.lineDiv, cur = container.firstChild;

  function rm(node) {
    var next = node.nextSibling;
    // Works around a throw-scroll bug in OS X Webkit
    if (webkit && mac && cm.display.currentWheelTarget == node)
      { node.style.display = "none"; }
    else
      { node.parentNode.removeChild(node); }
    return next
  }

  var view = display.view, lineN = display.viewFrom;
  // Loop over the elements in the view, syncing cur (the DOM nodes
  // in display.lineDiv) with the view as we go.
  for (var i = 0; i < view.length; i++) {
    var lineView = view[i];
    if (lineView.hidden) {
    } else if (!lineView.node || lineView.node.parentNode != container) { // Not drawn yet
      var node = buildLineElement(cm, lineView, lineN, dims);
      container.insertBefore(node, cur);
    } else { // Already drawn
      while (cur != lineView.node) { cur = rm(cur); }
      var updateNumber = lineNumbers && updateNumbersFrom != null &&
        updateNumbersFrom <= lineN && lineView.lineNumber;
      if (lineView.changes) {
        if (indexOf(lineView.changes, "gutter") > -1) { updateNumber = false; }
        updateLineForChanges(cm, lineView, lineN, dims);
      }
      if (updateNumber) {
        removeChildren(lineView.lineNumber);
        lineView.lineNumber.appendChild(document.createTextNode(lineNumberFor(cm.options, lineN)));
      }
      cur = lineView.node.nextSibling;
    }
    lineN += lineView.size;
  }
  while (cur) { cur = rm(cur); }
}

function updateGutterSpace(cm) {
  var width = cm.display.gutters.offsetWidth;
  cm.display.sizer.style.marginLeft = width + "px";
}

function setDocumentHeight(cm, measure) {
  cm.display.sizer.style.minHeight = measure.docHeight + "px";
  cm.display.heightForcer.style.top = measure.docHeight + "px";
  cm.display.gutters.style.height = (measure.docHeight + cm.display.barHeight + scrollGap(cm)) + "px";
}

// Rebuild the gutter elements, ensure the margin to the left of the
// code matches their width.
function updateGutters(cm) {
  var gutters = cm.display.gutters, specs = cm.options.gutters;
  removeChildren(gutters);
  var i = 0;
  for (; i < specs.length; ++i) {
    var gutterClass = specs[i];
    var gElt = gutters.appendChild(elt("div", null, "CodeMirror-gutter " + gutterClass));
    if (gutterClass == "CodeMirror-linenumbers") {
      cm.display.lineGutter = gElt;
      gElt.style.width = (cm.display.lineNumWidth || 1) + "px";
    }
  }
  gutters.style.display = i ? "" : "none";
  updateGutterSpace(cm);
}

// Make sure the gutters options contains the element
// "CodeMirror-linenumbers" when the lineNumbers option is true.
function setGuttersForLineNumbers(options) {
  var found = indexOf(options.gutters, "CodeMirror-linenumbers");
  if (found == -1 && options.lineNumbers) {
    options.gutters = options.gutters.concat(["CodeMirror-linenumbers"]);
  } else if (found > -1 && !options.lineNumbers) {
    options.gutters = options.gutters.slice(0);
    options.gutters.splice(found, 1);
  }
}

// Since the delta values reported on mouse wheel events are
// unstandardized between browsers and even browser versions, and
// generally horribly unpredictable, this code starts by measuring
// the scroll effect that the first few mouse wheel events have,
// and, from that, detects the way it can convert deltas to pixel
// offsets afterwards.
//
// The reason we want to know the amount a wheel event will scroll
// is that it gives us a chance to update the display before the
// actual scrolling happens, reducing flickering.

var wheelSamples = 0;
var wheelPixelsPerUnit = null;
// Fill in a browser-detected starting value on browsers where we
// know one. These don't have to be accurate -- the result of them
// being wrong would just be a slight flicker on the first wheel
// scroll (if it is large enough).
if (ie) { wheelPixelsPerUnit = -.53; }
else if (gecko) { wheelPixelsPerUnit = 15; }
else if (chrome) { wheelPixelsPerUnit = -.7; }
else if (safari) { wheelPixelsPerUnit = -1/3; }

function wheelEventDelta(e) {
  var dx = e.wheelDeltaX, dy = e.wheelDeltaY;
  if (dx == null && e.detail && e.axis == e.HORIZONTAL_AXIS) { dx = e.detail; }
  if (dy == null && e.detail && e.axis == e.VERTICAL_AXIS) { dy = e.detail; }
  else if (dy == null) { dy = e.wheelDelta; }
  return {x: dx, y: dy}
}
function wheelEventPixels(e) {
  var delta = wheelEventDelta(e);
  delta.x *= wheelPixelsPerUnit;
  delta.y *= wheelPixelsPerUnit;
  return delta
}

function onScrollWheel(cm, e) {
  var delta = wheelEventDelta(e), dx = delta.x, dy = delta.y;

  var display = cm.display, scroll = display.scroller;
  // Quit if there's nothing to scroll here
  var canScrollX = scroll.scrollWidth > scroll.clientWidth;
  var canScrollY = scroll.scrollHeight > scroll.clientHeight;
  if (!(dx && canScrollX || dy && canScrollY)) { return }

  // Webkit browsers on OS X abort momentum scrolls when the target
  // of the scroll event is removed from the scrollable element.
  // This hack (see related code in patchDisplay) makes sure the
  // element is kept around.
  if (dy && mac && webkit) {
    outer: for (var cur = e.target, view = display.view; cur != scroll; cur = cur.parentNode) {
      for (var i = 0; i < view.length; i++) {
        if (view[i].node == cur) {
          cm.display.currentWheelTarget = cur;
          break outer
        }
      }
    }
  }

  // On some browsers, horizontal scrolling will cause redraws to
  // happen before the gutter has been realigned, causing it to
  // wriggle around in a most unseemly way. When we have an
  // estimated pixels/delta value, we just handle horizontal
  // scrolling entirely here. It'll be slightly off from native, but
  // better than glitching out.
  if (dx && !gecko && !presto && wheelPixelsPerUnit != null) {
    if (dy && canScrollY)
      { updateScrollTop(cm, Math.max(0, scroll.scrollTop + dy * wheelPixelsPerUnit)); }
    setScrollLeft(cm, Math.max(0, scroll.scrollLeft + dx * wheelPixelsPerUnit));
    // Only prevent default scrolling if vertical scrolling is
    // actually possible. Otherwise, it causes vertical scroll
    // jitter on OSX trackpads when deltaX is small and deltaY
    // is large (issue #3579)
    if (!dy || (dy && canScrollY))
      { e_preventDefault(e); }
    display.wheelStartX = null; // Abort measurement, if in progress
    return
  }

  // 'Project' the visible viewport to cover the area that is being
  // scrolled into view (if we know enough to estimate it).
  if (dy && wheelPixelsPerUnit != null) {
    var pixels = dy * wheelPixelsPerUnit;
    var top = cm.doc.scrollTop, bot = top + display.wrapper.clientHeight;
    if (pixels < 0) { top = Math.max(0, top + pixels - 50); }
    else { bot = Math.min(cm.doc.height, bot + pixels + 50); }
    updateDisplaySimple(cm, {top: top, bottom: bot});
  }

  if (wheelSamples < 20) {
    if (display.wheelStartX == null) {
      display.wheelStartX = scroll.scrollLeft; display.wheelStartY = scroll.scrollTop;
      display.wheelDX = dx; display.wheelDY = dy;
      setTimeout(function () {
        if (display.wheelStartX == null) { return }
        var movedX = scroll.scrollLeft - display.wheelStartX;
        var movedY = scroll.scrollTop - display.wheelStartY;
        var sample = (movedY && display.wheelDY && movedY / display.wheelDY) ||
          (movedX && display.wheelDX && movedX / display.wheelDX);
        display.wheelStartX = display.wheelStartY = null;
        if (!sample) { return }
        wheelPixelsPerUnit = (wheelPixelsPerUnit * wheelSamples + sample) / (wheelSamples + 1);
        ++wheelSamples;
      }, 200);
    } else {
      display.wheelDX += dx; display.wheelDY += dy;
    }
  }
}

// Selection objects are immutable. A new one is created every time
// the selection changes. A selection is one or more non-overlapping
// (and non-touching) ranges, sorted, and an integer that indicates
// which one is the primary selection (the one that's scrolled into
// view, that getCursor returns, etc).
var Selection = function(ranges, primIndex) {
  this.ranges = ranges;
  this.primIndex = primIndex;
};

Selection.prototype.primary = function () { return this.ranges[this.primIndex] };

Selection.prototype.equals = function (other) {
    var this$1 = this;

  if (other == this) { return true }
  if (other.primIndex != this.primIndex || other.ranges.length != this.ranges.length) { return false }
  for (var i = 0; i < this.ranges.length; i++) {
    var here = this$1.ranges[i], there = other.ranges[i];
    if (!equalCursorPos(here.anchor, there.anchor) || !equalCursorPos(here.head, there.head)) { return false }
  }
  return true
};

Selection.prototype.deepCopy = function () {
    var this$1 = this;

  var out = [];
  for (var i = 0; i < this.ranges.length; i++)
    { out[i] = new Range(copyPos(this$1.ranges[i].anchor), copyPos(this$1.ranges[i].head)); }
  return new Selection(out, this.primIndex)
};

Selection.prototype.somethingSelected = function () {
    var this$1 = this;

  for (var i = 0; i < this.ranges.length; i++)
    { if (!this$1.ranges[i].empty()) { return true } }
  return false
};

Selection.prototype.contains = function (pos, end) {
    var this$1 = this;

  if (!end) { end = pos; }
  for (var i = 0; i < this.ranges.length; i++) {
    var range = this$1.ranges[i];
    if (cmp(end, range.from()) >= 0 && cmp(pos, range.to()) <= 0)
      { return i }
  }
  return -1
};

var Range = function(anchor, head) {
  this.anchor = anchor; this.head = head;
};

Range.prototype.from = function () { return minPos(this.anchor, this.head) };
Range.prototype.to = function () { return maxPos(this.anchor, this.head) };
Range.prototype.empty = function () { return this.head.line == this.anchor.line && this.head.ch == this.anchor.ch };

// Take an unsorted, potentially overlapping set of ranges, and
// build a selection out of it. 'Consumes' ranges array (modifying
// it).
function normalizeSelection(ranges, primIndex) {
  var prim = ranges[primIndex];
  ranges.sort(function (a, b) { return cmp(a.from(), b.from()); });
  primIndex = indexOf(ranges, prim);
  for (var i = 1; i < ranges.length; i++) {
    var cur = ranges[i], prev = ranges[i - 1];
    if (cmp(prev.to(), cur.from()) >= 0) {
      var from = minPos(prev.from(), cur.from()), to = maxPos(prev.to(), cur.to());
      var inv = prev.empty() ? cur.from() == cur.head : prev.from() == prev.head;
      if (i <= primIndex) { --primIndex; }
      ranges.splice(--i, 2, new Range(inv ? to : from, inv ? from : to));
    }
  }
  return new Selection(ranges, primIndex)
}

function simpleSelection(anchor, head) {
  return new Selection([new Range(anchor, head || anchor)], 0)
}

// Compute the position of the end of a change (its 'to' property
// refers to the pre-change end).
function changeEnd(change) {
  if (!change.text) { return change.to }
  return Pos(change.from.line + change.text.length - 1,
             lst(change.text).length + (change.text.length == 1 ? change.from.ch : 0))
}

// Adjust a position to refer to the post-change position of the
// same text, or the end of the change if the change covers it.
function adjustForChange(pos, change) {
  if (cmp(pos, change.from) < 0) { return pos }
  if (cmp(pos, change.to) <= 0) { return changeEnd(change) }

  var line = pos.line + change.text.length - (change.to.line - change.from.line) - 1, ch = pos.ch;
  if (pos.line == change.to.line) { ch += changeEnd(change).ch - change.to.ch; }
  return Pos(line, ch)
}

function computeSelAfterChange(doc, change) {
  var out = [];
  for (var i = 0; i < doc.sel.ranges.length; i++) {
    var range = doc.sel.ranges[i];
    out.push(new Range(adjustForChange(range.anchor, change),
                       adjustForChange(range.head, change)));
  }
  return normalizeSelection(out, doc.sel.primIndex)
}

function offsetPos(pos, old, nw) {
  if (pos.line == old.line)
    { return Pos(nw.line, pos.ch - old.ch + nw.ch) }
  else
    { return Pos(nw.line + (pos.line - old.line), pos.ch) }
}

// Used by replaceSelections to allow moving the selection to the
// start or around the replaced test. Hint may be "start" or "around".
function computeReplacedSel(doc, changes, hint) {
  var out = [];
  var oldPrev = Pos(doc.first, 0), newPrev = oldPrev;
  for (var i = 0; i < changes.length; i++) {
    var change = changes[i];
    var from = offsetPos(change.from, oldPrev, newPrev);
    var to = offsetPos(changeEnd(change), oldPrev, newPrev);
    oldPrev = change.to;
    newPrev = to;
    if (hint == "around") {
      var range = doc.sel.ranges[i], inv = cmp(range.head, range.anchor) < 0;
      out[i] = new Range(inv ? to : from, inv ? from : to);
    } else {
      out[i] = new Range(from, from);
    }
  }
  return new Selection(out, doc.sel.primIndex)
}

// Used to get the editor into a consistent state again when options change.

function loadMode(cm) {
  cm.doc.mode = getMode(cm.options, cm.doc.modeOption);
  resetModeState(cm);
}

function resetModeState(cm) {
  cm.doc.iter(function (line) {
    if (line.stateAfter) { line.stateAfter = null; }
    if (line.styles) { line.styles = null; }
  });
  cm.doc.modeFrontier = cm.doc.highlightFrontier = cm.doc.first;
  startWorker(cm, 100);
  cm.state.modeGen++;
  if (cm.curOp) { regChange(cm); }
}

// DOCUMENT DATA STRUCTURE

// By default, updates that start and end at the beginning of a line
// are treated specially, in order to make the association of line
// widgets and marker elements with the text behave more intuitive.
function isWholeLineUpdate(doc, change) {
  return change.from.ch == 0 && change.to.ch == 0 && lst(change.text) == "" &&
    (!doc.cm || doc.cm.options.wholeLineUpdateBefore)
}

// Perform a change on the document data structure.
function updateDoc(doc, change, markedSpans, estimateHeight$$1) {
  function spansFor(n) {return markedSpans ? markedSpans[n] : null}
  function update(line, text, spans) {
    updateLine(line, text, spans, estimateHeight$$1);
    signalLater(line, "change", line, change);
  }
  function linesFor(start, end) {
    var result = [];
    for (var i = start; i < end; ++i)
      { result.push(new Line(text[i], spansFor(i), estimateHeight$$1)); }
    return result
  }

  var from = change.from, to = change.to, text = change.text;
  var firstLine = getLine(doc, from.line), lastLine = getLine(doc, to.line);
  var lastText = lst(text), lastSpans = spansFor(text.length - 1), nlines = to.line - from.line;

  // Adjust the line structure
  if (change.full) {
    doc.insert(0, linesFor(0, text.length));
    doc.remove(text.length, doc.size - text.length);
  } else if (isWholeLineUpdate(doc, change)) {
    // This is a whole-line replace. Treated specially to make
    // sure line objects move the way they are supposed to.
    var added = linesFor(0, text.length - 1);
    update(lastLine, lastLine.text, lastSpans);
    if (nlines) { doc.remove(from.line, nlines); }
    if (added.length) { doc.insert(from.line, added); }
  } else if (firstLine == lastLine) {
    if (text.length == 1) {
      update(firstLine, firstLine.text.slice(0, from.ch) + lastText + firstLine.text.slice(to.ch), lastSpans);
    } else {
      var added$1 = linesFor(1, text.length - 1);
      added$1.push(new Line(lastText + firstLine.text.slice(to.ch), lastSpans, estimateHeight$$1));
      update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0));
      doc.insert(from.line + 1, added$1);
    }
  } else if (text.length == 1) {
    update(firstLine, firstLine.text.slice(0, from.ch) + text[0] + lastLine.text.slice(to.ch), spansFor(0));
    doc.remove(from.line + 1, nlines);
  } else {
    update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0));
    update(lastLine, lastText + lastLine.text.slice(to.ch), lastSpans);
    var added$2 = linesFor(1, text.length - 1);
    if (nlines > 1) { doc.remove(from.line + 1, nlines - 1); }
    doc.insert(from.line + 1, added$2);
  }

  signalLater(doc, "change", doc, change);
}

// Call f for all linked documents.
function linkedDocs(doc, f, sharedHistOnly) {
  function propagate(doc, skip, sharedHist) {
    if (doc.linked) { for (var i = 0; i < doc.linked.length; ++i) {
      var rel = doc.linked[i];
      if (rel.doc == skip) { continue }
      var shared = sharedHist && rel.sharedHist;
      if (sharedHistOnly && !shared) { continue }
      f(rel.doc, shared);
      propagate(rel.doc, doc, shared);
    } }
  }
  propagate(doc, null, true);
}

// Attach a document to an editor.
function attachDoc(cm, doc) {
  if (doc.cm) { throw new Error("This document is already in use.") }
  cm.doc = doc;
  doc.cm = cm;
  estimateLineHeights(cm);
  loadMode(cm);
  setDirectionClass(cm);
  if (!cm.options.lineWrapping) { findMaxLine(cm); }
  cm.options.mode = doc.modeOption;
  regChange(cm);
}

function setDirectionClass(cm) {
  (cm.doc.direction == "rtl" ? addClass : rmClass)(cm.display.lineDiv, "CodeMirror-rtl");
}

function directionChanged(cm) {
  runInOp(cm, function () {
    setDirectionClass(cm);
    regChange(cm);
  });
}

function History(startGen) {
  // Arrays of change events and selections. Doing something adds an
  // event to done and clears undo. Undoing moves events from done
  // to undone, redoing moves them in the other direction.
  this.done = []; this.undone = [];
  this.undoDepth = Infinity;
  // Used to track when changes can be merged into a single undo
  // event
  this.lastModTime = this.lastSelTime = 0;
  this.lastOp = this.lastSelOp = null;
  this.lastOrigin = this.lastSelOrigin = null;
  // Used by the isClean() method
  this.generation = this.maxGeneration = startGen || 1;
}

// Create a history change event from an updateDoc-style change
// object.
function historyChangeFromChange(doc, change) {
  var histChange = {from: copyPos(change.from), to: changeEnd(change), text: getBetween(doc, change.from, change.to)};
  attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1);
  linkedDocs(doc, function (doc) { return attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1); }, true);
  return histChange
}

// Pop all selection events off the end of a history array. Stop at
// a change event.
function clearSelectionEvents(array) {
  while (array.length) {
    var last = lst(array);
    if (last.ranges) { array.pop(); }
    else { break }
  }
}

// Find the top change event in the history. Pop off selection
// events that are in the way.
function lastChangeEvent(hist, force) {
  if (force) {
    clearSelectionEvents(hist.done);
    return lst(hist.done)
  } else if (hist.done.length && !lst(hist.done).ranges) {
    return lst(hist.done)
  } else if (hist.done.length > 1 && !hist.done[hist.done.length - 2].ranges) {
    hist.done.pop();
    return lst(hist.done)
  }
}

// Register a change in the history. Merges changes that are within
// a single operation, or are close together with an origin that
// allows merging (starting with "+") into a single event.
function addChangeToHistory(doc, change, selAfter, opId) {
  var hist = doc.history;
  hist.undone.length = 0;
  var time = +new Date, cur;
  var last;

  if ((hist.lastOp == opId ||
       hist.lastOrigin == change.origin && change.origin &&
       ((change.origin.charAt(0) == "+" && doc.cm && hist.lastModTime > time - doc.cm.options.historyEventDelay) ||
        change.origin.charAt(0) == "*")) &&
      (cur = lastChangeEvent(hist, hist.lastOp == opId))) {
    // Merge this change into the last event
    last = lst(cur.changes);
    if (cmp(change.from, change.to) == 0 && cmp(change.from, last.to) == 0) {
      // Optimized case for simple insertion -- don't want to add
      // new changesets for every character typed
      last.to = changeEnd(change);
    } else {
      // Add new sub-event
      cur.changes.push(historyChangeFromChange(doc, change));
    }
  } else {
    // Can not be merged, start a new event.
    var before = lst(hist.done);
    if (!before || !before.ranges)
      { pushSelectionToHistory(doc.sel, hist.done); }
    cur = {changes: [historyChangeFromChange(doc, change)],
           generation: hist.generation};
    hist.done.push(cur);
    while (hist.done.length > hist.undoDepth) {
      hist.done.shift();
      if (!hist.done[0].ranges) { hist.done.shift(); }
    }
  }
  hist.done.push(selAfter);
  hist.generation = ++hist.maxGeneration;
  hist.lastModTime = hist.lastSelTime = time;
  hist.lastOp = hist.lastSelOp = opId;
  hist.lastOrigin = hist.lastSelOrigin = change.origin;

  if (!last) { signal(doc, "historyAdded"); }
}

function selectionEventCanBeMerged(doc, origin, prev, sel) {
  var ch = origin.charAt(0);
  return ch == "*" ||
    ch == "+" &&
    prev.ranges.length == sel.ranges.length &&
    prev.somethingSelected() == sel.somethingSelected() &&
    new Date - doc.history.lastSelTime <= (doc.cm ? doc.cm.options.historyEventDelay : 500)
}

// Called whenever the selection changes, sets the new selection as
// the pending selection in the history, and pushes the old pending
// selection into the 'done' array when it was significantly
// different (in number of selected ranges, emptiness, or time).
function addSelectionToHistory(doc, sel, opId, options) {
  var hist = doc.history, origin = options && options.origin;

  // A new event is started when the previous origin does not match
  // the current, or the origins don't allow matching. Origins
  // starting with * are always merged, those starting with + are
  // merged when similar and close together in time.
  if (opId == hist.lastSelOp ||
      (origin && hist.lastSelOrigin == origin &&
       (hist.lastModTime == hist.lastSelTime && hist.lastOrigin == origin ||
        selectionEventCanBeMerged(doc, origin, lst(hist.done), sel))))
    { hist.done[hist.done.length - 1] = sel; }
  else
    { pushSelectionToHistory(sel, hist.done); }

  hist.lastSelTime = +new Date;
  hist.lastSelOrigin = origin;
  hist.lastSelOp = opId;
  if (options && options.clearRedo !== false)
    { clearSelectionEvents(hist.undone); }
}

function pushSelectionToHistory(sel, dest) {
  var top = lst(dest);
  if (!(top && top.ranges && top.equals(sel)))
    { dest.push(sel); }
}

// Used to store marked span information in the history.
function attachLocalSpans(doc, change, from, to) {
  var existing = change["spans_" + doc.id], n = 0;
  doc.iter(Math.max(doc.first, from), Math.min(doc.first + doc.size, to), function (line) {
    if (line.markedSpans)
      { (existing || (existing = change["spans_" + doc.id] = {}))[n] = line.markedSpans; }
    ++n;
  });
}

// When un/re-doing restores text containing marked spans, those
// that have been explicitly cleared should not be restored.
function removeClearedSpans(spans) {
  if (!spans) { return null }
  var out;
  for (var i = 0; i < spans.length; ++i) {
    if (spans[i].marker.explicitlyCleared) { if (!out) { out = spans.slice(0, i); } }
    else if (out) { out.push(spans[i]); }
  }
  return !out ? spans : out.length ? out : null
}

// Retrieve and filter the old marked spans stored in a change event.
function getOldSpans(doc, change) {
  var found = change["spans_" + doc.id];
  if (!found) { return null }
  var nw = [];
  for (var i = 0; i < change.text.length; ++i)
    { nw.push(removeClearedSpans(found[i])); }
  return nw
}

// Used for un/re-doing changes from the history. Combines the
// result of computing the existing spans with the set of spans that
// existed in the history (so that deleting around a span and then
// undoing brings back the span).
function mergeOldSpans(doc, change) {
  var old = getOldSpans(doc, change);
  var stretched = stretchSpansOverChange(doc, change);
  if (!old) { return stretched }
  if (!stretched) { return old }

  for (var i = 0; i < old.length; ++i) {
    var oldCur = old[i], stretchCur = stretched[i];
    if (oldCur && stretchCur) {
      spans: for (var j = 0; j < stretchCur.length; ++j) {
        var span = stretchCur[j];
        for (var k = 0; k < oldCur.length; ++k)
          { if (oldCur[k].marker == span.marker) { continue spans } }
        oldCur.push(span);
      }
    } else if (stretchCur) {
      old[i] = stretchCur;
    }
  }
  return old
}

// Used both to provide a JSON-safe object in .getHistory, and, when
// detaching a document, to split the history in two
function copyHistoryArray(events, newGroup, instantiateSel) {
  var copy = [];
  for (var i = 0; i < events.length; ++i) {
    var event = events[i];
    if (event.ranges) {
      copy.push(instantiateSel ? Selection.prototype.deepCopy.call(event) : event);
      continue
    }
    var changes = event.changes, newChanges = [];
    copy.push({changes: newChanges});
    for (var j = 0; j < changes.length; ++j) {
      var change = changes[j], m = (void 0);
      newChanges.push({from: change.from, to: change.to, text: change.text});
      if (newGroup) { for (var prop in change) { if (m = prop.match(/^spans_(\d+)$/)) {
        if (indexOf(newGroup, Number(m[1])) > -1) {
          lst(newChanges)[prop] = change[prop];
          delete change[prop];
        }
      } } }
    }
  }
  return copy
}

// The 'scroll' parameter given to many of these indicated whether
// the new cursor position should be scrolled into view after
// modifying the selection.

// If shift is held or the extend flag is set, extends a range to
// include a given position (and optionally a second position).
// Otherwise, simply returns the range between the given positions.
// Used for cursor motion and such.
function extendRange(range, head, other, extend) {
  if (extend) {
    var anchor = range.anchor;
    if (other) {
      var posBefore = cmp(head, anchor) < 0;
      if (posBefore != (cmp(other, anchor) < 0)) {
        anchor = head;
        head = other;
      } else if (posBefore != (cmp(head, other) < 0)) {
        head = other;
      }
    }
    return new Range(anchor, head)
  } else {
    return new Range(other || head, head)
  }
}

// Extend the primary selection range, discard the rest.
function extendSelection(doc, head, other, options, extend) {
  if (extend == null) { extend = doc.cm && (doc.cm.display.shift || doc.extend); }
  setSelection(doc, new Selection([extendRange(doc.sel.primary(), head, other, extend)], 0), options);
}

// Extend all selections (pos is an array of selections with length
// equal the number of selections)
function extendSelections(doc, heads, options) {
  var out = [];
  var extend = doc.cm && (doc.cm.display.shift || doc.extend);
  for (var i = 0; i < doc.sel.ranges.length; i++)
    { out[i] = extendRange(doc.sel.ranges[i], heads[i], null, extend); }
  var newSel = normalizeSelection(out, doc.sel.primIndex);
  setSelection(doc, newSel, options);
}

// Updates a single range in the selection.
function replaceOneSelection(doc, i, range, options) {
  var ranges = doc.sel.ranges.slice(0);
  ranges[i] = range;
  setSelection(doc, normalizeSelection(ranges, doc.sel.primIndex), options);
}

// Reset the selection to a single range.
function setSimpleSelection(doc, anchor, head, options) {
  setSelection(doc, simpleSelection(anchor, head), options);
}

// Give beforeSelectionChange handlers a change to influence a
// selection update.
function filterSelectionChange(doc, sel, options) {
  var obj = {
    ranges: sel.ranges,
    update: function(ranges) {
      var this$1 = this;

      this.ranges = [];
      for (var i = 0; i < ranges.length; i++)
        { this$1.ranges[i] = new Range(clipPos(doc, ranges[i].anchor),
                                   clipPos(doc, ranges[i].head)); }
    },
    origin: options && options.origin
  };
  signal(doc, "beforeSelectionChange", doc, obj);
  if (doc.cm) { signal(doc.cm, "beforeSelectionChange", doc.cm, obj); }
  if (obj.ranges != sel.ranges) { return normalizeSelection(obj.ranges, obj.ranges.length - 1) }
  else { return sel }
}

function setSelectionReplaceHistory(doc, sel, options) {
  var done = doc.history.done, last = lst(done);
  if (last && last.ranges) {
    done[done.length - 1] = sel;
    setSelectionNoUndo(doc, sel, options);
  } else {
    setSelection(doc, sel, options);
  }
}

// Set a new selection.
function setSelection(doc, sel, options) {
  setSelectionNoUndo(doc, sel, options);
  addSelectionToHistory(doc, doc.sel, doc.cm ? doc.cm.curOp.id : NaN, options);
}

function setSelectionNoUndo(doc, sel, options) {
  if (hasHandler(doc, "beforeSelectionChange") || doc.cm && hasHandler(doc.cm, "beforeSelectionChange"))
    { sel = filterSelectionChange(doc, sel, options); }

  var bias = options && options.bias ||
    (cmp(sel.primary().head, doc.sel.primary().head) < 0 ? -1 : 1);
  setSelectionInner(doc, skipAtomicInSelection(doc, sel, bias, true));

  if (!(options && options.scroll === false) && doc.cm)
    { ensureCursorVisible(doc.cm); }
}

function setSelectionInner(doc, sel) {
  if (sel.equals(doc.sel)) { return }

  doc.sel = sel;

  if (doc.cm) {
    doc.cm.curOp.updateInput = doc.cm.curOp.selectionChanged = true;
    signalCursorActivity(doc.cm);
  }
  signalLater(doc, "cursorActivity", doc);
}

// Verify that the selection does not partially select any atomic
// marked ranges.
function reCheckSelection(doc) {
  setSelectionInner(doc, skipAtomicInSelection(doc, doc.sel, null, false));
}

// Return a selection that does not partially select any atomic
// ranges.
function skipAtomicInSelection(doc, sel, bias, mayClear) {
  var out;
  for (var i = 0; i < sel.ranges.length; i++) {
    var range = sel.ranges[i];
    var old = sel.ranges.length == doc.sel.ranges.length && doc.sel.ranges[i];
    var newAnchor = skipAtomic(doc, range.anchor, old && old.anchor, bias, mayClear);
    var newHead = skipAtomic(doc, range.head, old && old.head, bias, mayClear);
    if (out || newAnchor != range.anchor || newHead != range.head) {
      if (!out) { out = sel.ranges.slice(0, i); }
      out[i] = new Range(newAnchor, newHead);
    }
  }
  return out ? normalizeSelection(out, sel.primIndex) : sel
}

function skipAtomicInner(doc, pos, oldPos, dir, mayClear) {
  var line = getLine(doc, pos.line);
  if (line.markedSpans) { for (var i = 0; i < line.markedSpans.length; ++i) {
    var sp = line.markedSpans[i], m = sp.marker;
    if ((sp.from == null || (m.inclusiveLeft ? sp.from <= pos.ch : sp.from < pos.ch)) &&
        (sp.to == null || (m.inclusiveRight ? sp.to >= pos.ch : sp.to > pos.ch))) {
      if (mayClear) {
        signal(m, "beforeCursorEnter");
        if (m.explicitlyCleared) {
          if (!line.markedSpans) { break }
          else {--i; continue}
        }
      }
      if (!m.atomic) { continue }

      if (oldPos) {
        var near = m.find(dir < 0 ? 1 : -1), diff = (void 0);
        if (dir < 0 ? m.inclusiveRight : m.inclusiveLeft)
          { near = movePos(doc, near, -dir, near && near.line == pos.line ? line : null); }
        if (near && near.line == pos.line && (diff = cmp(near, oldPos)) && (dir < 0 ? diff < 0 : diff > 0))
          { return skipAtomicInner(doc, near, pos, dir, mayClear) }
      }

      var far = m.find(dir < 0 ? -1 : 1);
      if (dir < 0 ? m.inclusiveLeft : m.inclusiveRight)
        { far = movePos(doc, far, dir, far.line == pos.line ? line : null); }
      return far ? skipAtomicInner(doc, far, pos, dir, mayClear) : null
    }
  } }
  return pos
}

// Ensure a given position is not inside an atomic range.
function skipAtomic(doc, pos, oldPos, bias, mayClear) {
  var dir = bias || 1;
  var found = skipAtomicInner(doc, pos, oldPos, dir, mayClear) ||
      (!mayClear && skipAtomicInner(doc, pos, oldPos, dir, true)) ||
      skipAtomicInner(doc, pos, oldPos, -dir, mayClear) ||
      (!mayClear && skipAtomicInner(doc, pos, oldPos, -dir, true));
  if (!found) {
    doc.cantEdit = true;
    return Pos(doc.first, 0)
  }
  return found
}

function movePos(doc, pos, dir, line) {
  if (dir < 0 && pos.ch == 0) {
    if (pos.line > doc.first) { return clipPos(doc, Pos(pos.line - 1)) }
    else { return null }
  } else if (dir > 0 && pos.ch == (line || getLine(doc, pos.line)).text.length) {
    if (pos.line < doc.first + doc.size - 1) { return Pos(pos.line + 1, 0) }
    else { return null }
  } else {
    return new Pos(pos.line, pos.ch + dir)
  }
}

function selectAll(cm) {
  cm.setSelection(Pos(cm.firstLine(), 0), Pos(cm.lastLine()), sel_dontScroll);
}

// UPDATING

// Allow "beforeChange" event handlers to influence a change
function filterChange(doc, change, update) {
  var obj = {
    canceled: false,
    from: change.from,
    to: change.to,
    text: change.text,
    origin: change.origin,
    cancel: function () { return obj.canceled = true; }
  };
  if (update) { obj.update = function (from, to, text, origin) {
    if (from) { obj.from = clipPos(doc, from); }
    if (to) { obj.to = clipPos(doc, to); }
    if (text) { obj.text = text; }
    if (origin !== undefined) { obj.origin = origin; }
  }; }
  signal(doc, "beforeChange", doc, obj);
  if (doc.cm) { signal(doc.cm, "beforeChange", doc.cm, obj); }

  if (obj.canceled) { return null }
  return {from: obj.from, to: obj.to, text: obj.text, origin: obj.origin}
}

// Apply a change to a document, and add it to the document's
// history, and propagating it to all linked documents.
function makeChange(doc, change, ignoreReadOnly) {
  if (doc.cm) {
    if (!doc.cm.curOp) { return operation(doc.cm, makeChange)(doc, change, ignoreReadOnly) }
    if (doc.cm.state.suppressEdits) { return }
  }

  if (hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange")) {
    change = filterChange(doc, change, true);
    if (!change) { return }
  }

  // Possibly split or suppress the update based on the presence
  // of read-only spans in its range.
  var split = sawReadOnlySpans && !ignoreReadOnly && removeReadOnlyRanges(doc, change.from, change.to);
  if (split) {
    for (var i = split.length - 1; i >= 0; --i)
      { makeChangeInner(doc, {from: split[i].from, to: split[i].to, text: i ? [""] : change.text}); }
  } else {
    makeChangeInner(doc, change);
  }
}

function makeChangeInner(doc, change) {
  if (change.text.length == 1 && change.text[0] == "" && cmp(change.from, change.to) == 0) { return }
  var selAfter = computeSelAfterChange(doc, change);
  addChangeToHistory(doc, change, selAfter, doc.cm ? doc.cm.curOp.id : NaN);

  makeChangeSingleDoc(doc, change, selAfter, stretchSpansOverChange(doc, change));
  var rebased = [];

  linkedDocs(doc, function (doc, sharedHist) {
    if (!sharedHist && indexOf(rebased, doc.history) == -1) {
      rebaseHist(doc.history, change);
      rebased.push(doc.history);
    }
    makeChangeSingleDoc(doc, change, null, stretchSpansOverChange(doc, change));
  });
}

// Revert a change stored in a document's history.
function makeChangeFromHistory(doc, type, allowSelectionOnly) {
  if (doc.cm && doc.cm.state.suppressEdits && !allowSelectionOnly) { return }

  var hist = doc.history, event, selAfter = doc.sel;
  var source = type == "undo" ? hist.done : hist.undone, dest = type == "undo" ? hist.undone : hist.done;

  // Verify that there is a usable event (so that ctrl-z won't
  // needlessly clear selection events)
  var i = 0;
  for (; i < source.length; i++) {
    event = source[i];
    if (allowSelectionOnly ? event.ranges && !event.equals(doc.sel) : !event.ranges)
      { break }
  }
  if (i == source.length) { return }
  hist.lastOrigin = hist.lastSelOrigin = null;

  for (;;) {
    event = source.pop();
    if (event.ranges) {
      pushSelectionToHistory(event, dest);
      if (allowSelectionOnly && !event.equals(doc.sel)) {
        setSelection(doc, event, {clearRedo: false});
        return
      }
      selAfter = event;
    }
    else { break }
  }

  // Build up a reverse change object to add to the opposite history
  // stack (redo when undoing, and vice versa).
  var antiChanges = [];
  pushSelectionToHistory(selAfter, dest);
  dest.push({changes: antiChanges, generation: hist.generation});
  hist.generation = event.generation || ++hist.maxGeneration;

  var filter = hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange");

  var loop = function ( i ) {
    var change = event.changes[i];
    change.origin = type;
    if (filter && !filterChange(doc, change, false)) {
      source.length = 0;
      return {}
    }

    antiChanges.push(historyChangeFromChange(doc, change));

    var after = i ? computeSelAfterChange(doc, change) : lst(source);
    makeChangeSingleDoc(doc, change, after, mergeOldSpans(doc, change));
    if (!i && doc.cm) { doc.cm.scrollIntoView({from: change.from, to: changeEnd(change)}); }
    var rebased = [];

    // Propagate to the linked documents
    linkedDocs(doc, function (doc, sharedHist) {
      if (!sharedHist && indexOf(rebased, doc.history) == -1) {
        rebaseHist(doc.history, change);
        rebased.push(doc.history);
      }
      makeChangeSingleDoc(doc, change, null, mergeOldSpans(doc, change));
    });
  };

  for (var i$1 = event.changes.length - 1; i$1 >= 0; --i$1) {
    var returned = loop( i$1 );

    if ( returned ) return returned.v;
  }
}

// Sub-views need their line numbers shifted when text is added
// above or below them in the parent document.
function shiftDoc(doc, distance) {
  if (distance == 0) { return }
  doc.first += distance;
  doc.sel = new Selection(map(doc.sel.ranges, function (range) { return new Range(
    Pos(range.anchor.line + distance, range.anchor.ch),
    Pos(range.head.line + distance, range.head.ch)
  ); }), doc.sel.primIndex);
  if (doc.cm) {
    regChange(doc.cm, doc.first, doc.first - distance, distance);
    for (var d = doc.cm.display, l = d.viewFrom; l < d.viewTo; l++)
      { regLineChange(doc.cm, l, "gutter"); }
  }
}

// More lower-level change function, handling only a single document
// (not linked ones).
function makeChangeSingleDoc(doc, change, selAfter, spans) {
  if (doc.cm && !doc.cm.curOp)
    { return operation(doc.cm, makeChangeSingleDoc)(doc, change, selAfter, spans) }

  if (change.to.line < doc.first) {
    shiftDoc(doc, change.text.length - 1 - (change.to.line - change.from.line));
    return
  }
  if (change.from.line > doc.lastLine()) { return }

  // Clip the change to the size of this doc
  if (change.from.line < doc.first) {
    var shift = change.text.length - 1 - (doc.first - change.from.line);
    shiftDoc(doc, shift);
    change = {from: Pos(doc.first, 0), to: Pos(change.to.line + shift, change.to.ch),
              text: [lst(change.text)], origin: change.origin};
  }
  var last = doc.lastLine();
  if (change.to.line > last) {
    change = {from: change.from, to: Pos(last, getLine(doc, last).text.length),
              text: [change.text[0]], origin: change.origin};
  }

  change.removed = getBetween(doc, change.from, change.to);

  if (!selAfter) { selAfter = computeSelAfterChange(doc, change); }
  if (doc.cm) { makeChangeSingleDocInEditor(doc.cm, change, spans); }
  else { updateDoc(doc, change, spans); }
  setSelectionNoUndo(doc, selAfter, sel_dontScroll);
}

// Handle the interaction of a change to a document with the editor
// that this document is part of.
function makeChangeSingleDocInEditor(cm, change, spans) {
  var doc = cm.doc, display = cm.display, from = change.from, to = change.to;

  var recomputeMaxLength = false, checkWidthStart = from.line;
  if (!cm.options.lineWrapping) {
    checkWidthStart = lineNo(visualLine(getLine(doc, from.line)));
    doc.iter(checkWidthStart, to.line + 1, function (line) {
      if (line == display.maxLine) {
        recomputeMaxLength = true;
        return true
      }
    });
  }

  if (doc.sel.contains(change.from, change.to) > -1)
    { signalCursorActivity(cm); }

  updateDoc(doc, change, spans, estimateHeight(cm));

  if (!cm.options.lineWrapping) {
    doc.iter(checkWidthStart, from.line + change.text.length, function (line) {
      var len = lineLength(line);
      if (len > display.maxLineLength) {
        display.maxLine = line;
        display.maxLineLength = len;
        display.maxLineChanged = true;
        recomputeMaxLength = false;
      }
    });
    if (recomputeMaxLength) { cm.curOp.updateMaxLine = true; }
  }

  retreatFrontier(doc, from.line);
  startWorker(cm, 400);

  var lendiff = change.text.length - (to.line - from.line) - 1;
  // Remember that these lines changed, for updating the display
  if (change.full)
    { regChange(cm); }
  else if (from.line == to.line && change.text.length == 1 && !isWholeLineUpdate(cm.doc, change))
    { regLineChange(cm, from.line, "text"); }
  else
    { regChange(cm, from.line, to.line + 1, lendiff); }

  var changesHandler = hasHandler(cm, "changes"), changeHandler = hasHandler(cm, "change");
  if (changeHandler || changesHandler) {
    var obj = {
      from: from, to: to,
      text: change.text,
      removed: change.removed,
      origin: change.origin
    };
    if (changeHandler) { signalLater(cm, "change", cm, obj); }
    if (changesHandler) { (cm.curOp.changeObjs || (cm.curOp.changeObjs = [])).push(obj); }
  }
  cm.display.selForContextMenu = null;
}

function replaceRange(doc, code, from, to, origin) {
  if (!to) { to = from; }
  if (cmp(to, from) < 0) { var tmp = to; to = from; from = tmp; }
  if (typeof code == "string") { code = doc.splitLines(code); }
  makeChange(doc, {from: from, to: to, text: code, origin: origin});
}

// Rebasing/resetting history to deal with externally-sourced changes

function rebaseHistSelSingle(pos, from, to, diff) {
  if (to < pos.line) {
    pos.line += diff;
  } else if (from < pos.line) {
    pos.line = from;
    pos.ch = 0;
  }
}

// Tries to rebase an array of history events given a change in the
// document. If the change touches the same lines as the event, the
// event, and everything 'behind' it, is discarded. If the change is
// before the event, the event's positions are updated. Uses a
// copy-on-write scheme for the positions, to avoid having to
// reallocate them all on every rebase, but also avoid problems with
// shared position objects being unsafely updated.
function rebaseHistArray(array, from, to, diff) {
  for (var i = 0; i < array.length; ++i) {
    var sub = array[i], ok = true;
    if (sub.ranges) {
      if (!sub.copied) { sub = array[i] = sub.deepCopy(); sub.copied = true; }
      for (var j = 0; j < sub.ranges.length; j++) {
        rebaseHistSelSingle(sub.ranges[j].anchor, from, to, diff);
        rebaseHistSelSingle(sub.ranges[j].head, from, to, diff);
      }
      continue
    }
    for (var j$1 = 0; j$1 < sub.changes.length; ++j$1) {
      var cur = sub.changes[j$1];
      if (to < cur.from.line) {
        cur.from = Pos(cur.from.line + diff, cur.from.ch);
        cur.to = Pos(cur.to.line + diff, cur.to.ch);
      } else if (from <= cur.to.line) {
        ok = false;
        break
      }
    }
    if (!ok) {
      array.splice(0, i + 1);
      i = 0;
    }
  }
}

function rebaseHist(hist, change) {
  var from = change.from.line, to = change.to.line, diff = change.text.length - (to - from) - 1;
  rebaseHistArray(hist.done, from, to, diff);
  rebaseHistArray(hist.undone, from, to, diff);
}

// Utility for applying a change to a line by handle or number,
// returning the number and optionally registering the line as
// changed.
function changeLine(doc, handle, changeType, op) {
  var no = handle, line = handle;
  if (typeof handle == "number") { line = getLine(doc, clipLine(doc, handle)); }
  else { no = lineNo(handle); }
  if (no == null) { return null }
  if (op(line, no) && doc.cm) { regLineChange(doc.cm, no, changeType); }
  return line
}

// The document is represented as a BTree consisting of leaves, with
// chunk of lines in them, and branches, with up to ten leaves or
// other branch nodes below them. The top node is always a branch
// node, and is the document object itself (meaning it has
// additional methods and properties).
//
// All nodes have parent links. The tree is used both to go from
// line numbers to line objects, and to go from objects to numbers.
// It also indexes by height, and is used to convert between height
// and line object, and to find the total height of the document.
//
// See also http://marijnhaverbeke.nl/blog/codemirror-line-tree.html

function LeafChunk(lines) {
  var this$1 = this;

  this.lines = lines;
  this.parent = null;
  var height = 0;
  for (var i = 0; i < lines.length; ++i) {
    lines[i].parent = this$1;
    height += lines[i].height;
  }
  this.height = height;
}

LeafChunk.prototype = {
  chunkSize: function chunkSize() { return this.lines.length },

  // Remove the n lines at offset 'at'.
  removeInner: function removeInner(at, n) {
    var this$1 = this;

    for (var i = at, e = at + n; i < e; ++i) {
      var line = this$1.lines[i];
      this$1.height -= line.height;
      cleanUpLine(line);
      signalLater(line, "delete");
    }
    this.lines.splice(at, n);
  },

  // Helper used to collapse a small branch into a single leaf.
  collapse: function collapse(lines) {
    lines.push.apply(lines, this.lines);
  },

  // Insert the given array of lines at offset 'at', count them as
  // having the given height.
  insertInner: function insertInner(at, lines, height) {
    var this$1 = this;

    this.height += height;
    this.lines = this.lines.slice(0, at).concat(lines).concat(this.lines.slice(at));
    for (var i = 0; i < lines.length; ++i) { lines[i].parent = this$1; }
  },

  // Used to iterate over a part of the tree.
  iterN: function iterN(at, n, op) {
    var this$1 = this;

    for (var e = at + n; at < e; ++at)
      { if (op(this$1.lines[at])) { return true } }
  }
};

function BranchChunk(children) {
  var this$1 = this;

  this.children = children;
  var size = 0, height = 0;
  for (var i = 0; i < children.length; ++i) {
    var ch = children[i];
    size += ch.chunkSize(); height += ch.height;
    ch.parent = this$1;
  }
  this.size = size;
  this.height = height;
  this.parent = null;
}

BranchChunk.prototype = {
  chunkSize: function chunkSize() { return this.size },

  removeInner: function removeInner(at, n) {
    var this$1 = this;

    this.size -= n;
    for (var i = 0; i < this.children.length; ++i) {
      var child = this$1.children[i], sz = child.chunkSize();
      if (at < sz) {
        var rm = Math.min(n, sz - at), oldHeight = child.height;
        child.removeInner(at, rm);
        this$1.height -= oldHeight - child.height;
        if (sz == rm) { this$1.children.splice(i--, 1); child.parent = null; }
        if ((n -= rm) == 0) { break }
        at = 0;
      } else { at -= sz; }
    }
    // If the result is smaller than 25 lines, ensure that it is a
    // single leaf node.
    if (this.size - n < 25 &&
        (this.children.length > 1 || !(this.children[0] instanceof LeafChunk))) {
      var lines = [];
      this.collapse(lines);
      this.children = [new LeafChunk(lines)];
      this.children[0].parent = this;
    }
  },

  collapse: function collapse(lines) {
    var this$1 = this;

    for (var i = 0; i < this.children.length; ++i) { this$1.children[i].collapse(lines); }
  },

  insertInner: function insertInner(at, lines, height) {
    var this$1 = this;

    this.size += lines.length;
    this.height += height;
    for (var i = 0; i < this.children.length; ++i) {
      var child = this$1.children[i], sz = child.chunkSize();
      if (at <= sz) {
        child.insertInner(at, lines, height);
        if (child.lines && child.lines.length > 50) {
          // To avoid memory thrashing when child.lines is huge (e.g. first view of a large file), it's never spliced.
          // Instead, small slices are taken. They're taken in order because sequential memory accesses are fastest.
          var remaining = child.lines.length % 25 + 25;
          for (var pos = remaining; pos < child.lines.length;) {
            var leaf = new LeafChunk(child.lines.slice(pos, pos += 25));
            child.height -= leaf.height;
            this$1.children.splice(++i, 0, leaf);
            leaf.parent = this$1;
          }
          child.lines = child.lines.slice(0, remaining);
          this$1.maybeSpill();
        }
        break
      }
      at -= sz;
    }
  },

  // When a node has grown, check whether it should be split.
  maybeSpill: function maybeSpill() {
    if (this.children.length <= 10) { return }
    var me = this;
    do {
      var spilled = me.children.splice(me.children.length - 5, 5);
      var sibling = new BranchChunk(spilled);
      if (!me.parent) { // Become the parent node
        var copy = new BranchChunk(me.children);
        copy.parent = me;
        me.children = [copy, sibling];
        me = copy;
     } else {
        me.size -= sibling.size;
        me.height -= sibling.height;
        var myIndex = indexOf(me.parent.children, me);
        me.parent.children.splice(myIndex + 1, 0, sibling);
      }
      sibling.parent = me.parent;
    } while (me.children.length > 10)
    me.parent.maybeSpill();
  },

  iterN: function iterN(at, n, op) {
    var this$1 = this;

    for (var i = 0; i < this.children.length; ++i) {
      var child = this$1.children[i], sz = child.chunkSize();
      if (at < sz) {
        var used = Math.min(n, sz - at);
        if (child.iterN(at, used, op)) { return true }
        if ((n -= used) == 0) { break }
        at = 0;
      } else { at -= sz; }
    }
  }
};

// Line widgets are block elements displayed above or below a line.

var LineWidget = function(doc, node, options) {
  var this$1 = this;

  if (options) { for (var opt in options) { if (options.hasOwnProperty(opt))
    { this$1[opt] = options[opt]; } } }
  this.doc = doc;
  this.node = node;
};

LineWidget.prototype.clear = function () {
    var this$1 = this;

  var cm = this.doc.cm, ws = this.line.widgets, line = this.line, no = lineNo(line);
  if (no == null || !ws) { return }
  for (var i = 0; i < ws.length; ++i) { if (ws[i] == this$1) { ws.splice(i--, 1); } }
  if (!ws.length) { line.widgets = null; }
  var height = widgetHeight(this);
  updateLineHeight(line, Math.max(0, line.height - height));
  if (cm) {
    runInOp(cm, function () {
      adjustScrollWhenAboveVisible(cm, line, -height);
      regLineChange(cm, no, "widget");
    });
    signalLater(cm, "lineWidgetCleared", cm, this, no);
  }
};

LineWidget.prototype.changed = function () {
    var this$1 = this;

  var oldH = this.height, cm = this.doc.cm, line = this.line;
  this.height = null;
  var diff = widgetHeight(this) - oldH;
  if (!diff) { return }
  updateLineHeight(line, line.height + diff);
  if (cm) {
    runInOp(cm, function () {
      cm.curOp.forceUpdate = true;
      adjustScrollWhenAboveVisible(cm, line, diff);
      signalLater(cm, "lineWidgetChanged", cm, this$1, lineNo(line));
    });
  }
};
eventMixin(LineWidget);

function adjustScrollWhenAboveVisible(cm, line, diff) {
  if (heightAtLine(line) < ((cm.curOp && cm.curOp.scrollTop) || cm.doc.scrollTop))
    { addToScrollTop(cm, diff); }
}

function addLineWidget(doc, handle, node, options) {
  var widget = new LineWidget(doc, node, options);
  var cm = doc.cm;
  if (cm && widget.noHScroll) { cm.display.alignWidgets = true; }
  changeLine(doc, handle, "widget", function (line) {
    var widgets = line.widgets || (line.widgets = []);
    if (widget.insertAt == null) { widgets.push(widget); }
    else { widgets.splice(Math.min(widgets.length - 1, Math.max(0, widget.insertAt)), 0, widget); }
    widget.line = line;
    if (cm && !lineIsHidden(doc, line)) {
      var aboveVisible = heightAtLine(line) < doc.scrollTop;
      updateLineHeight(line, line.height + widgetHeight(widget));
      if (aboveVisible) { addToScrollTop(cm, widget.height); }
      cm.curOp.forceUpdate = true;
    }
    return true
  });
  signalLater(cm, "lineWidgetAdded", cm, widget, typeof handle == "number" ? handle : lineNo(handle));
  return widget
}

// TEXTMARKERS

// Created with markText and setBookmark methods. A TextMarker is a
// handle that can be used to clear or find a marked position in the
// document. Line objects hold arrays (markedSpans) containing
// {from, to, marker} object pointing to such marker objects, and
// indicating that such a marker is present on that line. Multiple
// lines may point to the same marker when it spans across lines.
// The spans will have null for their from/to properties when the
// marker continues beyond the start/end of the line. Markers have
// links back to the lines they currently touch.

// Collapsed markers have unique ids, in order to be able to order
// them, which is needed for uniquely determining an outer marker
// when they overlap (they may nest, but not partially overlap).
var nextMarkerId = 0;

var TextMarker = function(doc, type) {
  this.lines = [];
  this.type = type;
  this.doc = doc;
  this.id = ++nextMarkerId;
};

// Clear the marker.
TextMarker.prototype.clear = function () {
    var this$1 = this;

  if (this.explicitlyCleared) { return }
  var cm = this.doc.cm, withOp = cm && !cm.curOp;
  if (withOp) { startOperation(cm); }
  if (hasHandler(this, "clear")) {
    var found = this.find();
    if (found) { signalLater(this, "clear", found.from, found.to); }
  }
  var min = null, max = null;
  for (var i = 0; i < this.lines.length; ++i) {
    var line = this$1.lines[i];
    var span = getMarkedSpanFor(line.markedSpans, this$1);
    if (cm && !this$1.collapsed) { regLineChange(cm, lineNo(line), "text"); }
    else if (cm) {
      if (span.to != null) { max = lineNo(line); }
      if (span.from != null) { min = lineNo(line); }
    }
    line.markedSpans = removeMarkedSpan(line.markedSpans, span);
    if (span.from == null && this$1.collapsed && !lineIsHidden(this$1.doc, line) && cm)
      { updateLineHeight(line, textHeight(cm.display)); }
  }
  if (cm && this.collapsed && !cm.options.lineWrapping) { for (var i$1 = 0; i$1 < this.lines.length; ++i$1) {
    var visual = visualLine(this$1.lines[i$1]), len = lineLength(visual);
    if (len > cm.display.maxLineLength) {
      cm.display.maxLine = visual;
      cm.display.maxLineLength = len;
      cm.display.maxLineChanged = true;
    }
  } }

  if (min != null && cm && this.collapsed) { regChange(cm, min, max + 1); }
  this.lines.length = 0;
  this.explicitlyCleared = true;
  if (this.atomic && this.doc.cantEdit) {
    this.doc.cantEdit = false;
    if (cm) { reCheckSelection(cm.doc); }
  }
  if (cm) { signalLater(cm, "markerCleared", cm, this, min, max); }
  if (withOp) { endOperation(cm); }
  if (this.parent) { this.parent.clear(); }
};

// Find the position of the marker in the document. Returns a {from,
// to} object by default. Side can be passed to get a specific side
// -- 0 (both), -1 (left), or 1 (right). When lineObj is true, the
// Pos objects returned contain a line object, rather than a line
// number (used to prevent looking up the same line twice).
TextMarker.prototype.find = function (side, lineObj) {
    var this$1 = this;

  if (side == null && this.type == "bookmark") { side = 1; }
  var from, to;
  for (var i = 0; i < this.lines.length; ++i) {
    var line = this$1.lines[i];
    var span = getMarkedSpanFor(line.markedSpans, this$1);
    if (span.from != null) {
      from = Pos(lineObj ? line : lineNo(line), span.from);
      if (side == -1) { return from }
    }
    if (span.to != null) {
      to = Pos(lineObj ? line : lineNo(line), span.to);
      if (side == 1) { return to }
    }
  }
  return from && {from: from, to: to}
};

// Signals that the marker's widget changed, and surrounding layout
// should be recomputed.
TextMarker.prototype.changed = function () {
    var this$1 = this;

  var pos = this.find(-1, true), widget = this, cm = this.doc.cm;
  if (!pos || !cm) { return }
  runInOp(cm, function () {
    var line = pos.line, lineN = lineNo(pos.line);
    var view = findViewForLine(cm, lineN);
    if (view) {
      clearLineMeasurementCacheFor(view);
      cm.curOp.selectionChanged = cm.curOp.forceUpdate = true;
    }
    cm.curOp.updateMaxLine = true;
    if (!lineIsHidden(widget.doc, line) && widget.height != null) {
      var oldHeight = widget.height;
      widget.height = null;
      var dHeight = widgetHeight(widget) - oldHeight;
      if (dHeight)
        { updateLineHeight(line, line.height + dHeight); }
    }
    signalLater(cm, "markerChanged", cm, this$1);
  });
};

TextMarker.prototype.attachLine = function (line) {
  if (!this.lines.length && this.doc.cm) {
    var op = this.doc.cm.curOp;
    if (!op.maybeHiddenMarkers || indexOf(op.maybeHiddenMarkers, this) == -1)
      { (op.maybeUnhiddenMarkers || (op.maybeUnhiddenMarkers = [])).push(this); }
  }
  this.lines.push(line);
};

TextMarker.prototype.detachLine = function (line) {
  this.lines.splice(indexOf(this.lines, line), 1);
  if (!this.lines.length && this.doc.cm) {
    var op = this.doc.cm.curOp;(op.maybeHiddenMarkers || (op.maybeHiddenMarkers = [])).push(this);
  }
};
eventMixin(TextMarker);

// Create a marker, wire it up to the right lines, and
function markText(doc, from, to, options, type) {
  // Shared markers (across linked documents) are handled separately
  // (markTextShared will call out to this again, once per
  // document).
  if (options && options.shared) { return markTextShared(doc, from, to, options, type) }
  // Ensure we are in an operation.
  if (doc.cm && !doc.cm.curOp) { return operation(doc.cm, markText)(doc, from, to, options, type) }

  var marker = new TextMarker(doc, type), diff = cmp(from, to);
  if (options) { copyObj(options, marker, false); }
  // Don't connect empty markers unless clearWhenEmpty is false
  if (diff > 0 || diff == 0 && marker.clearWhenEmpty !== false)
    { return marker }
  if (marker.replacedWith) {
    // Showing up as a widget implies collapsed (widget replaces text)
    marker.collapsed = true;
    marker.widgetNode = eltP("span", [marker.replacedWith], "CodeMirror-widget");
    if (!options.handleMouseEvents) { marker.widgetNode.setAttribute("cm-ignore-events", "true"); }
    if (options.insertLeft) { marker.widgetNode.insertLeft = true; }
  }
  if (marker.collapsed) {
    if (conflictingCollapsedRange(doc, from.line, from, to, marker) ||
        from.line != to.line && conflictingCollapsedRange(doc, to.line, from, to, marker))
      { throw new Error("Inserting collapsed marker partially overlapping an existing one") }
    seeCollapsedSpans();
  }

  if (marker.addToHistory)
    { addChangeToHistory(doc, {from: from, to: to, origin: "markText"}, doc.sel, NaN); }

  var curLine = from.line, cm = doc.cm, updateMaxLine;
  doc.iter(curLine, to.line + 1, function (line) {
    if (cm && marker.collapsed && !cm.options.lineWrapping && visualLine(line) == cm.display.maxLine)
      { updateMaxLine = true; }
    if (marker.collapsed && curLine != from.line) { updateLineHeight(line, 0); }
    addMarkedSpan(line, new MarkedSpan(marker,
                                       curLine == from.line ? from.ch : null,
                                       curLine == to.line ? to.ch : null));
    ++curLine;
  });
  // lineIsHidden depends on the presence of the spans, so needs a second pass
  if (marker.collapsed) { doc.iter(from.line, to.line + 1, function (line) {
    if (lineIsHidden(doc, line)) { updateLineHeight(line, 0); }
  }); }

  if (marker.clearOnEnter) { on(marker, "beforeCursorEnter", function () { return marker.clear(); }); }

  if (marker.readOnly) {
    seeReadOnlySpans();
    if (doc.history.done.length || doc.history.undone.length)
      { doc.clearHistory(); }
  }
  if (marker.collapsed) {
    marker.id = ++nextMarkerId;
    marker.atomic = true;
  }
  if (cm) {
    // Sync editor state
    if (updateMaxLine) { cm.curOp.updateMaxLine = true; }
    if (marker.collapsed)
      { regChange(cm, from.line, to.line + 1); }
    else if (marker.className || marker.title || marker.startStyle || marker.endStyle || marker.css)
      { for (var i = from.line; i <= to.line; i++) { regLineChange(cm, i, "text"); } }
    if (marker.atomic) { reCheckSelection(cm.doc); }
    signalLater(cm, "markerAdded", cm, marker);
  }
  return marker
}

// SHARED TEXTMARKERS

// A shared marker spans multiple linked documents. It is
// implemented as a meta-marker-object controlling multiple normal
// markers.
var SharedTextMarker = function(markers, primary) {
  var this$1 = this;

  this.markers = markers;
  this.primary = primary;
  for (var i = 0; i < markers.length; ++i)
    { markers[i].parent = this$1; }
};

SharedTextMarker.prototype.clear = function () {
    var this$1 = this;

  if (this.explicitlyCleared) { return }
  this.explicitlyCleared = true;
  for (var i = 0; i < this.markers.length; ++i)
    { this$1.markers[i].clear(); }
  signalLater(this, "clear");
};

SharedTextMarker.prototype.find = function (side, lineObj) {
  return this.primary.find(side, lineObj)
};
eventMixin(SharedTextMarker);

function markTextShared(doc, from, to, options, type) {
  options = copyObj(options);
  options.shared = false;
  var markers = [markText(doc, from, to, options, type)], primary = markers[0];
  var widget = options.widgetNode;
  linkedDocs(doc, function (doc) {
    if (widget) { options.widgetNode = widget.cloneNode(true); }
    markers.push(markText(doc, clipPos(doc, from), clipPos(doc, to), options, type));
    for (var i = 0; i < doc.linked.length; ++i)
      { if (doc.linked[i].isParent) { return } }
    primary = lst(markers);
  });
  return new SharedTextMarker(markers, primary)
}

function findSharedMarkers(doc) {
  return doc.findMarks(Pos(doc.first, 0), doc.clipPos(Pos(doc.lastLine())), function (m) { return m.parent; })
}

function copySharedMarkers(doc, markers) {
  for (var i = 0; i < markers.length; i++) {
    var marker = markers[i], pos = marker.find();
    var mFrom = doc.clipPos(pos.from), mTo = doc.clipPos(pos.to);
    if (cmp(mFrom, mTo)) {
      var subMark = markText(doc, mFrom, mTo, marker.primary, marker.primary.type);
      marker.markers.push(subMark);
      subMark.parent = marker;
    }
  }
}

function detachSharedMarkers(markers) {
  var loop = function ( i ) {
    var marker = markers[i], linked = [marker.primary.doc];
    linkedDocs(marker.primary.doc, function (d) { return linked.push(d); });
    for (var j = 0; j < marker.markers.length; j++) {
      var subMarker = marker.markers[j];
      if (indexOf(linked, subMarker.doc) == -1) {
        subMarker.parent = null;
        marker.markers.splice(j--, 1);
      }
    }
  };

  for (var i = 0; i < markers.length; i++) loop( i );
}

var nextDocId = 0;
var Doc = function(text, mode, firstLine, lineSep, direction) {
  if (!(this instanceof Doc)) { return new Doc(text, mode, firstLine, lineSep, direction) }
  if (firstLine == null) { firstLine = 0; }

  BranchChunk.call(this, [new LeafChunk([new Line("", null)])]);
  this.first = firstLine;
  this.scrollTop = this.scrollLeft = 0;
  this.cantEdit = false;
  this.cleanGeneration = 1;
  this.modeFrontier = this.highlightFrontier = firstLine;
  var start = Pos(firstLine, 0);
  this.sel = simpleSelection(start);
  this.history = new History(null);
  this.id = ++nextDocId;
  this.modeOption = mode;
  this.lineSep = lineSep;
  this.direction = (direction == "rtl") ? "rtl" : "ltr";
  this.extend = false;

  if (typeof text == "string") { text = this.splitLines(text); }
  updateDoc(this, {from: start, to: start, text: text});
  setSelection(this, simpleSelection(start), sel_dontScroll);
};

Doc.prototype = createObj(BranchChunk.prototype, {
  constructor: Doc,
  // Iterate over the document. Supports two forms -- with only one
  // argument, it calls that for each line in the document. With
  // three, it iterates over the range given by the first two (with
  // the second being non-inclusive).
  iter: function(from, to, op) {
    if (op) { this.iterN(from - this.first, to - from, op); }
    else { this.iterN(this.first, this.first + this.size, from); }
  },

  // Non-public interface for adding and removing lines.
  insert: function(at, lines) {
    var height = 0;
    for (var i = 0; i < lines.length; ++i) { height += lines[i].height; }
    this.insertInner(at - this.first, lines, height);
  },
  remove: function(at, n) { this.removeInner(at - this.first, n); },

  // From here, the methods are part of the public interface. Most
  // are also available from CodeMirror (editor) instances.

  getValue: function(lineSep) {
    var lines = getLines(this, this.first, this.first + this.size);
    if (lineSep === false) { return lines }
    return lines.join(lineSep || this.lineSeparator())
  },
  setValue: docMethodOp(function(code) {
    var top = Pos(this.first, 0), last = this.first + this.size - 1;
    makeChange(this, {from: top, to: Pos(last, getLine(this, last).text.length),
                      text: this.splitLines(code), origin: "setValue", full: true}, true);
    if (this.cm) { scrollToCoords(this.cm, 0, 0); }
    setSelection(this, simpleSelection(top), sel_dontScroll);
  }),
  replaceRange: function(code, from, to, origin) {
    from = clipPos(this, from);
    to = to ? clipPos(this, to) : from;
    replaceRange(this, code, from, to, origin);
  },
  getRange: function(from, to, lineSep) {
    var lines = getBetween(this, clipPos(this, from), clipPos(this, to));
    if (lineSep === false) { return lines }
    return lines.join(lineSep || this.lineSeparator())
  },

  getLine: function(line) {var l = this.getLineHandle(line); return l && l.text},

  getLineHandle: function(line) {if (isLine(this, line)) { return getLine(this, line) }},
  getLineNumber: function(line) {return lineNo(line)},

  getLineHandleVisualStart: function(line) {
    if (typeof line == "number") { line = getLine(this, line); }
    return visualLine(line)
  },

  lineCount: function() {return this.size},
  firstLine: function() {return this.first},
  lastLine: function() {return this.first + this.size - 1},

  clipPos: function(pos) {return clipPos(this, pos)},

  getCursor: function(start) {
    var range$$1 = this.sel.primary(), pos;
    if (start == null || start == "head") { pos = range$$1.head; }
    else if (start == "anchor") { pos = range$$1.anchor; }
    else if (start == "end" || start == "to" || start === false) { pos = range$$1.to(); }
    else { pos = range$$1.from(); }
    return pos
  },
  listSelections: function() { return this.sel.ranges },
  somethingSelected: function() {return this.sel.somethingSelected()},

  setCursor: docMethodOp(function(line, ch, options) {
    setSimpleSelection(this, clipPos(this, typeof line == "number" ? Pos(line, ch || 0) : line), null, options);
  }),
  setSelection: docMethodOp(function(anchor, head, options) {
    setSimpleSelection(this, clipPos(this, anchor), clipPos(this, head || anchor), options);
  }),
  extendSelection: docMethodOp(function(head, other, options) {
    extendSelection(this, clipPos(this, head), other && clipPos(this, other), options);
  }),
  extendSelections: docMethodOp(function(heads, options) {
    extendSelections(this, clipPosArray(this, heads), options);
  }),
  extendSelectionsBy: docMethodOp(function(f, options) {
    var heads = map(this.sel.ranges, f);
    extendSelections(this, clipPosArray(this, heads), options);
  }),
  setSelections: docMethodOp(function(ranges, primary, options) {
    var this$1 = this;

    if (!ranges.length) { return }
    var out = [];
    for (var i = 0; i < ranges.length; i++)
      { out[i] = new Range(clipPos(this$1, ranges[i].anchor),
                         clipPos(this$1, ranges[i].head)); }
    if (primary == null) { primary = Math.min(ranges.length - 1, this.sel.primIndex); }
    setSelection(this, normalizeSelection(out, primary), options);
  }),
  addSelection: docMethodOp(function(anchor, head, options) {
    var ranges = this.sel.ranges.slice(0);
    ranges.push(new Range(clipPos(this, anchor), clipPos(this, head || anchor)));
    setSelection(this, normalizeSelection(ranges, ranges.length - 1), options);
  }),

  getSelection: function(lineSep) {
    var this$1 = this;

    var ranges = this.sel.ranges, lines;
    for (var i = 0; i < ranges.length; i++) {
      var sel = getBetween(this$1, ranges[i].from(), ranges[i].to());
      lines = lines ? lines.concat(sel) : sel;
    }
    if (lineSep === false) { return lines }
    else { return lines.join(lineSep || this.lineSeparator()) }
  },
  getSelections: function(lineSep) {
    var this$1 = this;

    var parts = [], ranges = this.sel.ranges;
    for (var i = 0; i < ranges.length; i++) {
      var sel = getBetween(this$1, ranges[i].from(), ranges[i].to());
      if (lineSep !== false) { sel = sel.join(lineSep || this$1.lineSeparator()); }
      parts[i] = sel;
    }
    return parts
  },
  replaceSelection: function(code, collapse, origin) {
    var dup = [];
    for (var i = 0; i < this.sel.ranges.length; i++)
      { dup[i] = code; }
    this.replaceSelections(dup, collapse, origin || "+input");
  },
  replaceSelections: docMethodOp(function(code, collapse, origin) {
    var this$1 = this;

    var changes = [], sel = this.sel;
    for (var i = 0; i < sel.ranges.length; i++) {
      var range$$1 = sel.ranges[i];
      changes[i] = {from: range$$1.from(), to: range$$1.to(), text: this$1.splitLines(code[i]), origin: origin};
    }
    var newSel = collapse && collapse != "end" && computeReplacedSel(this, changes, collapse);
    for (var i$1 = changes.length - 1; i$1 >= 0; i$1--)
      { makeChange(this$1, changes[i$1]); }
    if (newSel) { setSelectionReplaceHistory(this, newSel); }
    else if (this.cm) { ensureCursorVisible(this.cm); }
  }),
  undo: docMethodOp(function() {makeChangeFromHistory(this, "undo");}),
  redo: docMethodOp(function() {makeChangeFromHistory(this, "redo");}),
  undoSelection: docMethodOp(function() {makeChangeFromHistory(this, "undo", true);}),
  redoSelection: docMethodOp(function() {makeChangeFromHistory(this, "redo", true);}),

  setExtending: function(val) {this.extend = val;},
  getExtending: function() {return this.extend},

  historySize: function() {
    var hist = this.history, done = 0, undone = 0;
    for (var i = 0; i < hist.done.length; i++) { if (!hist.done[i].ranges) { ++done; } }
    for (var i$1 = 0; i$1 < hist.undone.length; i$1++) { if (!hist.undone[i$1].ranges) { ++undone; } }
    return {undo: done, redo: undone}
  },
  clearHistory: function() {this.history = new History(this.history.maxGeneration);},

  markClean: function() {
    this.cleanGeneration = this.changeGeneration(true);
  },
  changeGeneration: function(forceSplit) {
    if (forceSplit)
      { this.history.lastOp = this.history.lastSelOp = this.history.lastOrigin = null; }
    return this.history.generation
  },
  isClean: function (gen) {
    return this.history.generation == (gen || this.cleanGeneration)
  },

  getHistory: function() {
    return {done: copyHistoryArray(this.history.done),
            undone: copyHistoryArray(this.history.undone)}
  },
  setHistory: function(histData) {
    var hist = this.history = new History(this.history.maxGeneration);
    hist.done = copyHistoryArray(histData.done.slice(0), null, true);
    hist.undone = copyHistoryArray(histData.undone.slice(0), null, true);
  },

  setGutterMarker: docMethodOp(function(line, gutterID, value) {
    return changeLine(this, line, "gutter", function (line) {
      var markers = line.gutterMarkers || (line.gutterMarkers = {});
      markers[gutterID] = value;
      if (!value && isEmpty(markers)) { line.gutterMarkers = null; }
      return true
    })
  }),

  clearGutter: docMethodOp(function(gutterID) {
    var this$1 = this;

    this.iter(function (line) {
      if (line.gutterMarkers && line.gutterMarkers[gutterID]) {
        changeLine(this$1, line, "gutter", function () {
          line.gutterMarkers[gutterID] = null;
          if (isEmpty(line.gutterMarkers)) { line.gutterMarkers = null; }
          return true
        });
      }
    });
  }),

  lineInfo: function(line) {
    var n;
    if (typeof line == "number") {
      if (!isLine(this, line)) { return null }
      n = line;
      line = getLine(this, line);
      if (!line) { return null }
    } else {
      n = lineNo(line);
      if (n == null) { return null }
    }
    return {line: n, handle: line, text: line.text, gutterMarkers: line.gutterMarkers,
            textClass: line.textClass, bgClass: line.bgClass, wrapClass: line.wrapClass,
            widgets: line.widgets}
  },

  addLineClass: docMethodOp(function(handle, where, cls) {
    return changeLine(this, handle, where == "gutter" ? "gutter" : "class", function (line) {
      var prop = where == "text" ? "textClass"
               : where == "background" ? "bgClass"
               : where == "gutter" ? "gutterClass" : "wrapClass";
      if (!line[prop]) { line[prop] = cls; }
      else if (classTest(cls).test(line[prop])) { return false }
      else { line[prop] += " " + cls; }
      return true
    })
  }),
  removeLineClass: docMethodOp(function(handle, where, cls) {
    return changeLine(this, handle, where == "gutter" ? "gutter" : "class", function (line) {
      var prop = where == "text" ? "textClass"
               : where == "background" ? "bgClass"
               : where == "gutter" ? "gutterClass" : "wrapClass";
      var cur = line[prop];
      if (!cur) { return false }
      else if (cls == null) { line[prop] = null; }
      else {
        var found = cur.match(classTest(cls));
        if (!found) { return false }
        var end = found.index + found[0].length;
        line[prop] = cur.slice(0, found.index) + (!found.index || end == cur.length ? "" : " ") + cur.slice(end) || null;
      }
      return true
    })
  }),

  addLineWidget: docMethodOp(function(handle, node, options) {
    return addLineWidget(this, handle, node, options)
  }),
  removeLineWidget: function(widget) { widget.clear(); },

  markText: function(from, to, options) {
    return markText(this, clipPos(this, from), clipPos(this, to), options, options && options.type || "range")
  },
  setBookmark: function(pos, options) {
    var realOpts = {replacedWith: options && (options.nodeType == null ? options.widget : options),
                    insertLeft: options && options.insertLeft,
                    clearWhenEmpty: false, shared: options && options.shared,
                    handleMouseEvents: options && options.handleMouseEvents};
    pos = clipPos(this, pos);
    return markText(this, pos, pos, realOpts, "bookmark")
  },
  findMarksAt: function(pos) {
    pos = clipPos(this, pos);
    var markers = [], spans = getLine(this, pos.line).markedSpans;
    if (spans) { for (var i = 0; i < spans.length; ++i) {
      var span = spans[i];
      if ((span.from == null || span.from <= pos.ch) &&
          (span.to == null || span.to >= pos.ch))
        { markers.push(span.marker.parent || span.marker); }
    } }
    return markers
  },
  findMarks: function(from, to, filter) {
    from = clipPos(this, from); to = clipPos(this, to);
    var found = [], lineNo$$1 = from.line;
    this.iter(from.line, to.line + 1, function (line) {
      var spans = line.markedSpans;
      if (spans) { for (var i = 0; i < spans.length; i++) {
        var span = spans[i];
        if (!(span.to != null && lineNo$$1 == from.line && from.ch >= span.to ||
              span.from == null && lineNo$$1 != from.line ||
              span.from != null && lineNo$$1 == to.line && span.from >= to.ch) &&
            (!filter || filter(span.marker)))
          { found.push(span.marker.parent || span.marker); }
      } }
      ++lineNo$$1;
    });
    return found
  },
  getAllMarks: function() {
    var markers = [];
    this.iter(function (line) {
      var sps = line.markedSpans;
      if (sps) { for (var i = 0; i < sps.length; ++i)
        { if (sps[i].from != null) { markers.push(sps[i].marker); } } }
    });
    return markers
  },

  posFromIndex: function(off) {
    var ch, lineNo$$1 = this.first, sepSize = this.lineSeparator().length;
    this.iter(function (line) {
      var sz = line.text.length + sepSize;
      if (sz > off) { ch = off; return true }
      off -= sz;
      ++lineNo$$1;
    });
    return clipPos(this, Pos(lineNo$$1, ch))
  },
  indexFromPos: function (coords) {
    coords = clipPos(this, coords);
    var index = coords.ch;
    if (coords.line < this.first || coords.ch < 0) { return 0 }
    var sepSize = this.lineSeparator().length;
    this.iter(this.first, coords.line, function (line) { // iter aborts when callback returns a truthy value
      index += line.text.length + sepSize;
    });
    return index
  },

  copy: function(copyHistory) {
    var doc = new Doc(getLines(this, this.first, this.first + this.size),
                      this.modeOption, this.first, this.lineSep, this.direction);
    doc.scrollTop = this.scrollTop; doc.scrollLeft = this.scrollLeft;
    doc.sel = this.sel;
    doc.extend = false;
    if (copyHistory) {
      doc.history.undoDepth = this.history.undoDepth;
      doc.setHistory(this.getHistory());
    }
    return doc
  },

  linkedDoc: function(options) {
    if (!options) { options = {}; }
    var from = this.first, to = this.first + this.size;
    if (options.from != null && options.from > from) { from = options.from; }
    if (options.to != null && options.to < to) { to = options.to; }
    var copy = new Doc(getLines(this, from, to), options.mode || this.modeOption, from, this.lineSep, this.direction);
    if (options.sharedHist) { copy.history = this.history
    ; }(this.linked || (this.linked = [])).push({doc: copy, sharedHist: options.sharedHist});
    copy.linked = [{doc: this, isParent: true, sharedHist: options.sharedHist}];
    copySharedMarkers(copy, findSharedMarkers(this));
    return copy
  },
  unlinkDoc: function(other) {
    var this$1 = this;

    if (other instanceof CodeMirror$1) { other = other.doc; }
    if (this.linked) { for (var i = 0; i < this.linked.length; ++i) {
      var link = this$1.linked[i];
      if (link.doc != other) { continue }
      this$1.linked.splice(i, 1);
      other.unlinkDoc(this$1);
      detachSharedMarkers(findSharedMarkers(this$1));
      break
    } }
    // If the histories were shared, split them again
    if (other.history == this.history) {
      var splitIds = [other.id];
      linkedDocs(other, function (doc) { return splitIds.push(doc.id); }, true);
      other.history = new History(null);
      other.history.done = copyHistoryArray(this.history.done, splitIds);
      other.history.undone = copyHistoryArray(this.history.undone, splitIds);
    }
  },
  iterLinkedDocs: function(f) {linkedDocs(this, f);},

  getMode: function() {return this.mode},
  getEditor: function() {return this.cm},

  splitLines: function(str) {
    if (this.lineSep) { return str.split(this.lineSep) }
    return splitLinesAuto(str)
  },
  lineSeparator: function() { return this.lineSep || "\n" },

  setDirection: docMethodOp(function (dir) {
    if (dir != "rtl") { dir = "ltr"; }
    if (dir == this.direction) { return }
    this.direction = dir;
    this.iter(function (line) { return line.order = null; });
    if (this.cm) { directionChanged(this.cm); }
  })
});

// Public alias.
Doc.prototype.eachLine = Doc.prototype.iter;

// Kludge to work around strange IE behavior where it'll sometimes
// re-fire a series of drag-related events right after the drop (#1551)
var lastDrop = 0;

function onDrop(e) {
  var cm = this;
  clearDragCursor(cm);
  if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e))
    { return }
  e_preventDefault(e);
  if (ie) { lastDrop = +new Date; }
  var pos = posFromMouse(cm, e, true), files = e.dataTransfer.files;
  if (!pos || cm.isReadOnly()) { return }
  // Might be a file drop, in which case we simply extract the text
  // and insert it.
  if (files && files.length && window.FileReader && window.File) {
    var n = files.length, text = Array(n), read = 0;
    var loadFile = function (file, i) {
      if (cm.options.allowDropFileTypes &&
          indexOf(cm.options.allowDropFileTypes, file.type) == -1)
        { return }

      var reader = new FileReader;
      reader.onload = operation(cm, function () {
        var content = reader.result;
        if (/[\x00-\x08\x0e-\x1f]{2}/.test(content)) { content = ""; }
        text[i] = content;
        if (++read == n) {
          pos = clipPos(cm.doc, pos);
          var change = {from: pos, to: pos,
                        text: cm.doc.splitLines(text.join(cm.doc.lineSeparator())),
                        origin: "paste"};
          makeChange(cm.doc, change);
          setSelectionReplaceHistory(cm.doc, simpleSelection(pos, changeEnd(change)));
        }
      });
      reader.readAsText(file);
    };
    for (var i = 0; i < n; ++i) { loadFile(files[i], i); }
  } else { // Normal drop
    // Don't do a replace if the drop happened inside of the selected text.
    if (cm.state.draggingText && cm.doc.sel.contains(pos) > -1) {
      cm.state.draggingText(e);
      // Ensure the editor is re-focused
      setTimeout(function () { return cm.display.input.focus(); }, 20);
      return
    }
    try {
      var text$1 = e.dataTransfer.getData("Text");
      if (text$1) {
        var selected;
        if (cm.state.draggingText && !cm.state.draggingText.copy)
          { selected = cm.listSelections(); }
        setSelectionNoUndo(cm.doc, simpleSelection(pos, pos));
        if (selected) { for (var i$1 = 0; i$1 < selected.length; ++i$1)
          { replaceRange(cm.doc, "", selected[i$1].anchor, selected[i$1].head, "drag"); } }
        cm.replaceSelection(text$1, "around", "paste");
        cm.display.input.focus();
      }
    }
    catch(e){}
  }
}

function onDragStart(cm, e) {
  if (ie && (!cm.state.draggingText || +new Date - lastDrop < 100)) { e_stop(e); return }
  if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e)) { return }

  e.dataTransfer.setData("Text", cm.getSelection());
  e.dataTransfer.effectAllowed = "copyMove";

  // Use dummy image instead of default browsers image.
  // Recent Safari (~6.0.2) have a tendency to segfault when this happens, so we don't do it there.
  if (e.dataTransfer.setDragImage && !safari) {
    var img = elt("img", null, null, "position: fixed; left: 0; top: 0;");
    img.src = "data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==";
    if (presto) {
      img.width = img.height = 1;
      cm.display.wrapper.appendChild(img);
      // Force a relayout, or Opera won't use our image for some obscure reason
      img._top = img.offsetTop;
    }
    e.dataTransfer.setDragImage(img, 0, 0);
    if (presto) { img.parentNode.removeChild(img); }
  }
}

function onDragOver(cm, e) {
  var pos = posFromMouse(cm, e);
  if (!pos) { return }
  var frag = document.createDocumentFragment();
  drawSelectionCursor(cm, pos, frag);
  if (!cm.display.dragCursor) {
    cm.display.dragCursor = elt("div", null, "CodeMirror-cursors CodeMirror-dragcursors");
    cm.display.lineSpace.insertBefore(cm.display.dragCursor, cm.display.cursorDiv);
  }
  removeChildrenAndAdd(cm.display.dragCursor, frag);
}

function clearDragCursor(cm) {
  if (cm.display.dragCursor) {
    cm.display.lineSpace.removeChild(cm.display.dragCursor);
    cm.display.dragCursor = null;
  }
}

// These must be handled carefully, because naively registering a
// handler for each editor will cause the editors to never be
// garbage collected.

function forEachCodeMirror(f) {
  if (!document.getElementsByClassName) { return }
  var byClass = document.getElementsByClassName("CodeMirror");
  for (var i = 0; i < byClass.length; i++) {
    var cm = byClass[i].CodeMirror;
    if (cm) { f(cm); }
  }
}

var globalsRegistered = false;
function ensureGlobalHandlers() {
  if (globalsRegistered) { return }
  registerGlobalHandlers();
  globalsRegistered = true;
}
function registerGlobalHandlers() {
  // When the window resizes, we need to refresh active editors.
  var resizeTimer;
  on(window, "resize", function () {
    if (resizeTimer == null) { resizeTimer = setTimeout(function () {
      resizeTimer = null;
      forEachCodeMirror(onResize);
    }, 100); }
  });
  // When the window loses focus, we want to show the editor as blurred
  on(window, "blur", function () { return forEachCodeMirror(onBlur); });
}
// Called when the window resizes
function onResize(cm) {
  var d = cm.display;
  if (d.lastWrapHeight == d.wrapper.clientHeight && d.lastWrapWidth == d.wrapper.clientWidth)
    { return }
  // Might be a text scaling operation, clear size caches.
  d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null;
  d.scrollbarsClipped = false;
  cm.setSize();
}

var keyNames = {
  3: "Enter", 8: "Backspace", 9: "Tab", 13: "Enter", 16: "Shift", 17: "Ctrl", 18: "Alt",
  19: "Pause", 20: "CapsLock", 27: "Esc", 32: "Space", 33: "PageUp", 34: "PageDown", 35: "End",
  36: "Home", 37: "Left", 38: "Up", 39: "Right", 40: "Down", 44: "PrintScrn", 45: "Insert",
  46: "Delete", 59: ";", 61: "=", 91: "Mod", 92: "Mod", 93: "Mod",
  106: "*", 107: "=", 109: "-", 110: ".", 111: "/", 127: "Delete",
  173: "-", 186: ";", 187: "=", 188: ",", 189: "-", 190: ".", 191: "/", 192: "`", 219: "[", 220: "\\",
  221: "]", 222: "'", 63232: "Up", 63233: "Down", 63234: "Left", 63235: "Right", 63272: "Delete",
  63273: "Home", 63275: "End", 63276: "PageUp", 63277: "PageDown", 63302: "Insert"
};

// Number keys
for (var i = 0; i < 10; i++) { keyNames[i + 48] = keyNames[i + 96] = String(i); }
// Alphabetic keys
for (var i$1 = 65; i$1 <= 90; i$1++) { keyNames[i$1] = String.fromCharCode(i$1); }
// Function keys
for (var i$2 = 1; i$2 <= 12; i$2++) { keyNames[i$2 + 111] = keyNames[i$2 + 63235] = "F" + i$2; }

var keyMap = {};

keyMap.basic = {
  "Left": "goCharLeft", "Right": "goCharRight", "Up": "goLineUp", "Down": "goLineDown",
  "End": "goLineEnd", "Home": "goLineStartSmart", "PageUp": "goPageUp", "PageDown": "goPageDown",
  "Delete": "delCharAfter", "Backspace": "delCharBefore", "Shift-Backspace": "delCharBefore",
  "Tab": "defaultTab", "Shift-Tab": "indentAuto",
  "Enter": "newlineAndIndent", "Insert": "toggleOverwrite",
  "Esc": "singleSelection"
};
// Note that the save and find-related commands aren't defined by
// default. User code or addons can define them. Unknown commands
// are simply ignored.
keyMap.pcDefault = {
  "Ctrl-A": "selectAll", "Ctrl-D": "deleteLine", "Ctrl-Z": "undo", "Shift-Ctrl-Z": "redo", "Ctrl-Y": "redo",
  "Ctrl-Home": "goDocStart", "Ctrl-End": "goDocEnd", "Ctrl-Up": "goLineUp", "Ctrl-Down": "goLineDown",
  "Ctrl-Left": "goGroupLeft", "Ctrl-Right": "goGroupRight", "Alt-Left": "goLineStart", "Alt-Right": "goLineEnd",
  "Ctrl-Backspace": "delGroupBefore", "Ctrl-Delete": "delGroupAfter", "Ctrl-S": "save", "Ctrl-F": "find",
  "Ctrl-G": "findNext", "Shift-Ctrl-G": "findPrev", "Shift-Ctrl-F": "replace", "Shift-Ctrl-R": "replaceAll",
  "Ctrl-[": "indentLess", "Ctrl-]": "indentMore",
  "Ctrl-U": "undoSelection", "Shift-Ctrl-U": "redoSelection", "Alt-U": "redoSelection",
  fallthrough: "basic"
};
// Very basic readline/emacs-style bindings, which are standard on Mac.
keyMap.emacsy = {
  "Ctrl-F": "goCharRight", "Ctrl-B": "goCharLeft", "Ctrl-P": "goLineUp", "Ctrl-N": "goLineDown",
  "Alt-F": "goWordRight", "Alt-B": "goWordLeft", "Ctrl-A": "goLineStart", "Ctrl-E": "goLineEnd",
  "Ctrl-V": "goPageDown", "Shift-Ctrl-V": "goPageUp", "Ctrl-D": "delCharAfter", "Ctrl-H": "delCharBefore",
  "Alt-D": "delWordAfter", "Alt-Backspace": "delWordBefore", "Ctrl-K": "killLine", "Ctrl-T": "transposeChars",
  "Ctrl-O": "openLine"
};
keyMap.macDefault = {
  "Cmd-A": "selectAll", "Cmd-D": "deleteLine", "Cmd-Z": "undo", "Shift-Cmd-Z": "redo", "Cmd-Y": "redo",
  "Cmd-Home": "goDocStart", "Cmd-Up": "goDocStart", "Cmd-End": "goDocEnd", "Cmd-Down": "goDocEnd", "Alt-Left": "goGroupLeft",
  "Alt-Right": "goGroupRight", "Cmd-Left": "goLineLeft", "Cmd-Right": "goLineRight", "Alt-Backspace": "delGroupBefore",
  "Ctrl-Alt-Backspace": "delGroupAfter", "Alt-Delete": "delGroupAfter", "Cmd-S": "save", "Cmd-F": "find",
  "Cmd-G": "findNext", "Shift-Cmd-G": "findPrev", "Cmd-Alt-F": "replace", "Shift-Cmd-Alt-F": "replaceAll",
  "Cmd-[": "indentLess", "Cmd-]": "indentMore", "Cmd-Backspace": "delWrappedLineLeft", "Cmd-Delete": "delWrappedLineRight",
  "Cmd-U": "undoSelection", "Shift-Cmd-U": "redoSelection", "Ctrl-Up": "goDocStart", "Ctrl-Down": "goDocEnd",
  fallthrough: ["basic", "emacsy"]
};
keyMap["default"] = mac ? keyMap.macDefault : keyMap.pcDefault;

// KEYMAP DISPATCH

function normalizeKeyName(name) {
  var parts = name.split(/-(?!$)/);
  name = parts[parts.length - 1];
  var alt, ctrl, shift, cmd;
  for (var i = 0; i < parts.length - 1; i++) {
    var mod = parts[i];
    if (/^(cmd|meta|m)$/i.test(mod)) { cmd = true; }
    else if (/^a(lt)?$/i.test(mod)) { alt = true; }
    else if (/^(c|ctrl|control)$/i.test(mod)) { ctrl = true; }
    else if (/^s(hift)?$/i.test(mod)) { shift = true; }
    else { throw new Error("Unrecognized modifier name: " + mod) }
  }
  if (alt) { name = "Alt-" + name; }
  if (ctrl) { name = "Ctrl-" + name; }
  if (cmd) { name = "Cmd-" + name; }
  if (shift) { name = "Shift-" + name; }
  return name
}

// This is a kludge to keep keymaps mostly working as raw objects
// (backwards compatibility) while at the same time support features
// like normalization and multi-stroke key bindings. It compiles a
// new normalized keymap, and then updates the old object to reflect
// this.
function normalizeKeyMap(keymap) {
  var copy = {};
  for (var keyname in keymap) { if (keymap.hasOwnProperty(keyname)) {
    var value = keymap[keyname];
    if (/^(name|fallthrough|(de|at)tach)$/.test(keyname)) { continue }
    if (value == "...") { delete keymap[keyname]; continue }

    var keys = map(keyname.split(" "), normalizeKeyName);
    for (var i = 0; i < keys.length; i++) {
      var val = (void 0), name = (void 0);
      if (i == keys.length - 1) {
        name = keys.join(" ");
        val = value;
      } else {
        name = keys.slice(0, i + 1).join(" ");
        val = "...";
      }
      var prev = copy[name];
      if (!prev) { copy[name] = val; }
      else if (prev != val) { throw new Error("Inconsistent bindings for " + name) }
    }
    delete keymap[keyname];
  } }
  for (var prop in copy) { keymap[prop] = copy[prop]; }
  return keymap
}

function lookupKey(key, map$$1, handle, context) {
  map$$1 = getKeyMap(map$$1);
  var found = map$$1.call ? map$$1.call(key, context) : map$$1[key];
  if (found === false) { return "nothing" }
  if (found === "...") { return "multi" }
  if (found != null && handle(found)) { return "handled" }

  if (map$$1.fallthrough) {
    if (Object.prototype.toString.call(map$$1.fallthrough) != "[object Array]")
      { return lookupKey(key, map$$1.fallthrough, handle, context) }
    for (var i = 0; i < map$$1.fallthrough.length; i++) {
      var result = lookupKey(key, map$$1.fallthrough[i], handle, context);
      if (result) { return result }
    }
  }
}

// Modifier key presses don't count as 'real' key presses for the
// purpose of keymap fallthrough.
function isModifierKey(value) {
  var name = typeof value == "string" ? value : keyNames[value.keyCode];
  return name == "Ctrl" || name == "Alt" || name == "Shift" || name == "Mod"
}

function addModifierNames(name, event, noShift) {
  var base = name;
  if (event.altKey && base != "Alt") { name = "Alt-" + name; }
  if ((flipCtrlCmd ? event.metaKey : event.ctrlKey) && base != "Ctrl") { name = "Ctrl-" + name; }
  if ((flipCtrlCmd ? event.ctrlKey : event.metaKey) && base != "Cmd") { name = "Cmd-" + name; }
  if (!noShift && event.shiftKey && base != "Shift") { name = "Shift-" + name; }
  return name
}

// Look up the name of a key as indicated by an event object.
function keyName(event, noShift) {
  if (presto && event.keyCode == 34 && event["char"]) { return false }
  var name = keyNames[event.keyCode];
  if (name == null || event.altGraphKey) { return false }
  return addModifierNames(name, event, noShift)
}

function getKeyMap(val) {
  return typeof val == "string" ? keyMap[val] : val
}

// Helper for deleting text near the selection(s), used to implement
// backspace, delete, and similar functionality.
function deleteNearSelection(cm, compute) {
  var ranges = cm.doc.sel.ranges, kill = [];
  // Build up a set of ranges to kill first, merging overlapping
  // ranges.
  for (var i = 0; i < ranges.length; i++) {
    var toKill = compute(ranges[i]);
    while (kill.length && cmp(toKill.from, lst(kill).to) <= 0) {
      var replaced = kill.pop();
      if (cmp(replaced.from, toKill.from) < 0) {
        toKill.from = replaced.from;
        break
      }
    }
    kill.push(toKill);
  }
  // Next, remove those actual ranges.
  runInOp(cm, function () {
    for (var i = kill.length - 1; i >= 0; i--)
      { replaceRange(cm.doc, "", kill[i].from, kill[i].to, "+delete"); }
    ensureCursorVisible(cm);
  });
}

// Commands are parameter-less actions that can be performed on an
// editor, mostly used for keybindings.
var commands = {
  selectAll: selectAll,
  singleSelection: function (cm) { return cm.setSelection(cm.getCursor("anchor"), cm.getCursor("head"), sel_dontScroll); },
  killLine: function (cm) { return deleteNearSelection(cm, function (range) {
    if (range.empty()) {
      var len = getLine(cm.doc, range.head.line).text.length;
      if (range.head.ch == len && range.head.line < cm.lastLine())
        { return {from: range.head, to: Pos(range.head.line + 1, 0)} }
      else
        { return {from: range.head, to: Pos(range.head.line, len)} }
    } else {
      return {from: range.from(), to: range.to()}
    }
  }); },
  deleteLine: function (cm) { return deleteNearSelection(cm, function (range) { return ({
    from: Pos(range.from().line, 0),
    to: clipPos(cm.doc, Pos(range.to().line + 1, 0))
  }); }); },
  delLineLeft: function (cm) { return deleteNearSelection(cm, function (range) { return ({
    from: Pos(range.from().line, 0), to: range.from()
  }); }); },
  delWrappedLineLeft: function (cm) { return deleteNearSelection(cm, function (range) {
    var top = cm.charCoords(range.head, "div").top + 5;
    var leftPos = cm.coordsChar({left: 0, top: top}, "div");
    return {from: leftPos, to: range.from()}
  }); },
  delWrappedLineRight: function (cm) { return deleteNearSelection(cm, function (range) {
    var top = cm.charCoords(range.head, "div").top + 5;
    var rightPos = cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, "div");
    return {from: range.from(), to: rightPos }
  }); },
  undo: function (cm) { return cm.undo(); },
  redo: function (cm) { return cm.redo(); },
  undoSelection: function (cm) { return cm.undoSelection(); },
  redoSelection: function (cm) { return cm.redoSelection(); },
  goDocStart: function (cm) { return cm.extendSelection(Pos(cm.firstLine(), 0)); },
  goDocEnd: function (cm) { return cm.extendSelection(Pos(cm.lastLine())); },
  goLineStart: function (cm) { return cm.extendSelectionsBy(function (range) { return lineStart(cm, range.head.line); },
    {origin: "+move", bias: 1}
  ); },
  goLineStartSmart: function (cm) { return cm.extendSelectionsBy(function (range) { return lineStartSmart(cm, range.head); },
    {origin: "+move", bias: 1}
  ); },
  goLineEnd: function (cm) { return cm.extendSelectionsBy(function (range) { return lineEnd(cm, range.head.line); },
    {origin: "+move", bias: -1}
  ); },
  goLineRight: function (cm) { return cm.extendSelectionsBy(function (range) {
    var top = cm.charCoords(range.head, "div").top + 5;
    return cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, "div")
  }, sel_move); },
  goLineLeft: function (cm) { return cm.extendSelectionsBy(function (range) {
    var top = cm.charCoords(range.head, "div").top + 5;
    return cm.coordsChar({left: 0, top: top}, "div")
  }, sel_move); },
  goLineLeftSmart: function (cm) { return cm.extendSelectionsBy(function (range) {
    var top = cm.charCoords(range.head, "div").top + 5;
    var pos = cm.coordsChar({left: 0, top: top}, "div");
    if (pos.ch < cm.getLine(pos.line).search(/\S/)) { return lineStartSmart(cm, range.head) }
    return pos
  }, sel_move); },
  goLineUp: function (cm) { return cm.moveV(-1, "line"); },
  goLineDown: function (cm) { return cm.moveV(1, "line"); },
  goPageUp: function (cm) { return cm.moveV(-1, "page"); },
  goPageDown: function (cm) { return cm.moveV(1, "page"); },
  goCharLeft: function (cm) { return cm.moveH(-1, "char"); },
  goCharRight: function (cm) { return cm.moveH(1, "char"); },
  goColumnLeft: function (cm) { return cm.moveH(-1, "column"); },
  goColumnRight: function (cm) { return cm.moveH(1, "column"); },
  goWordLeft: function (cm) { return cm.moveH(-1, "word"); },
  goGroupRight: function (cm) { return cm.moveH(1, "group"); },
  goGroupLeft: function (cm) { return cm.moveH(-1, "group"); },
  goWordRight: function (cm) { return cm.moveH(1, "word"); },
  delCharBefore: function (cm) { return cm.deleteH(-1, "char"); },
  delCharAfter: function (cm) { return cm.deleteH(1, "char"); },
  delWordBefore: function (cm) { return cm.deleteH(-1, "word"); },
  delWordAfter: function (cm) { return cm.deleteH(1, "word"); },
  delGroupBefore: function (cm) { return cm.deleteH(-1, "group"); },
  delGroupAfter: function (cm) { return cm.deleteH(1, "group"); },
  indentAuto: function (cm) { return cm.indentSelection("smart"); },
  indentMore: function (cm) { return cm.indentSelection("add"); },
  indentLess: function (cm) { return cm.indentSelection("subtract"); },
  insertTab: function (cm) { return cm.replaceSelection("\t"); },
  insertSoftTab: function (cm) {
    var spaces = [], ranges = cm.listSelections(), tabSize = cm.options.tabSize;
    for (var i = 0; i < ranges.length; i++) {
      var pos = ranges[i].from();
      var col = countColumn(cm.getLine(pos.line), pos.ch, tabSize);
      spaces.push(spaceStr(tabSize - col % tabSize));
    }
    cm.replaceSelections(spaces);
  },
  defaultTab: function (cm) {
    if (cm.somethingSelected()) { cm.indentSelection("add"); }
    else { cm.execCommand("insertTab"); }
  },
  // Swap the two chars left and right of each selection's head.
  // Move cursor behind the two swapped characters afterwards.
  //
  // Doesn't consider line feeds a character.
  // Doesn't scan more than one line above to find a character.
  // Doesn't do anything on an empty line.
  // Doesn't do anything with non-empty selections.
  transposeChars: function (cm) { return runInOp(cm, function () {
    var ranges = cm.listSelections(), newSel = [];
    for (var i = 0; i < ranges.length; i++) {
      if (!ranges[i].empty()) { continue }
      var cur = ranges[i].head, line = getLine(cm.doc, cur.line).text;
      if (line) {
        if (cur.ch == line.length) { cur = new Pos(cur.line, cur.ch - 1); }
        if (cur.ch > 0) {
          cur = new Pos(cur.line, cur.ch + 1);
          cm.replaceRange(line.charAt(cur.ch - 1) + line.charAt(cur.ch - 2),
                          Pos(cur.line, cur.ch - 2), cur, "+transpose");
        } else if (cur.line > cm.doc.first) {
          var prev = getLine(cm.doc, cur.line - 1).text;
          if (prev) {
            cur = new Pos(cur.line, 1);
            cm.replaceRange(line.charAt(0) + cm.doc.lineSeparator() +
                            prev.charAt(prev.length - 1),
                            Pos(cur.line - 1, prev.length - 1), cur, "+transpose");
          }
        }
      }
      newSel.push(new Range(cur, cur));
    }
    cm.setSelections(newSel);
  }); },
  newlineAndIndent: function (cm) { return runInOp(cm, function () {
    var sels = cm.listSelections();
    for (var i = sels.length - 1; i >= 0; i--)
      { cm.replaceRange(cm.doc.lineSeparator(), sels[i].anchor, sels[i].head, "+input"); }
    sels = cm.listSelections();
    for (var i$1 = 0; i$1 < sels.length; i$1++)
      { cm.indentLine(sels[i$1].from().line, null, true); }
    ensureCursorVisible(cm);
  }); },
  openLine: function (cm) { return cm.replaceSelection("\n", "start"); },
  toggleOverwrite: function (cm) { return cm.toggleOverwrite(); }
};


function lineStart(cm, lineN) {
  var line = getLine(cm.doc, lineN);
  var visual = visualLine(line);
  if (visual != line) { lineN = lineNo(visual); }
  return endOfLine(true, cm, visual, lineN, 1)
}
function lineEnd(cm, lineN) {
  var line = getLine(cm.doc, lineN);
  var visual = visualLineEnd(line);
  if (visual != line) { lineN = lineNo(visual); }
  return endOfLine(true, cm, line, lineN, -1)
}
function lineStartSmart(cm, pos) {
  var start = lineStart(cm, pos.line);
  var line = getLine(cm.doc, start.line);
  var order = getOrder(line, cm.doc.direction);
  if (!order || order[0].level == 0) {
    var firstNonWS = Math.max(0, line.text.search(/\S/));
    var inWS = pos.line == start.line && pos.ch <= firstNonWS && pos.ch;
    return Pos(start.line, inWS ? 0 : firstNonWS, start.sticky)
  }
  return start
}

// Run a handler that was bound to a key.
function doHandleBinding(cm, bound, dropShift) {
  if (typeof bound == "string") {
    bound = commands[bound];
    if (!bound) { return false }
  }
  // Ensure previous input has been read, so that the handler sees a
  // consistent view of the document
  cm.display.input.ensurePolled();
  var prevShift = cm.display.shift, done = false;
  try {
    if (cm.isReadOnly()) { cm.state.suppressEdits = true; }
    if (dropShift) { cm.display.shift = false; }
    done = bound(cm) != Pass;
  } finally {
    cm.display.shift = prevShift;
    cm.state.suppressEdits = false;
  }
  return done
}

function lookupKeyForEditor(cm, name, handle) {
  for (var i = 0; i < cm.state.keyMaps.length; i++) {
    var result = lookupKey(name, cm.state.keyMaps[i], handle, cm);
    if (result) { return result }
  }
  return (cm.options.extraKeys && lookupKey(name, cm.options.extraKeys, handle, cm))
    || lookupKey(name, cm.options.keyMap, handle, cm)
}

// Note that, despite the name, this function is also used to check
// for bound mouse clicks.

var stopSeq = new Delayed;
function dispatchKey(cm, name, e, handle) {
  var seq = cm.state.keySeq;
  if (seq) {
    if (isModifierKey(name)) { return "handled" }
    stopSeq.set(50, function () {
      if (cm.state.keySeq == seq) {
        cm.state.keySeq = null;
        cm.display.input.reset();
      }
    });
    name = seq + " " + name;
  }
  var result = lookupKeyForEditor(cm, name, handle);

  if (result == "multi")
    { cm.state.keySeq = name; }
  if (result == "handled")
    { signalLater(cm, "keyHandled", cm, name, e); }

  if (result == "handled" || result == "multi") {
    e_preventDefault(e);
    restartBlink(cm);
  }

  if (seq && !result && /\'$/.test(name)) {
    e_preventDefault(e);
    return true
  }
  return !!result
}

// Handle a key from the keydown event.
function handleKeyBinding(cm, e) {
  var name = keyName(e, true);
  if (!name) { return false }

  if (e.shiftKey && !cm.state.keySeq) {
    // First try to resolve full name (including 'Shift-'). Failing
    // that, see if there is a cursor-motion command (starting with
    // 'go') bound to the keyname without 'Shift-'.
    return dispatchKey(cm, "Shift-" + name, e, function (b) { return doHandleBinding(cm, b, true); })
        || dispatchKey(cm, name, e, function (b) {
             if (typeof b == "string" ? /^go[A-Z]/.test(b) : b.motion)
               { return doHandleBinding(cm, b) }
           })
  } else {
    return dispatchKey(cm, name, e, function (b) { return doHandleBinding(cm, b); })
  }
}

// Handle a key from the keypress event
function handleCharBinding(cm, e, ch) {
  return dispatchKey(cm, "'" + ch + "'", e, function (b) { return doHandleBinding(cm, b, true); })
}

var lastStoppedKey = null;
function onKeyDown(e) {
  var cm = this;
  cm.curOp.focus = activeElt();
  if (signalDOMEvent(cm, e)) { return }
  // IE does strange things with escape.
  if (ie && ie_version < 11 && e.keyCode == 27) { e.returnValue = false; }
  var code = e.keyCode;
  cm.display.shift = code == 16 || e.shiftKey;
  var handled = handleKeyBinding(cm, e);
  if (presto) {
    lastStoppedKey = handled ? code : null;
    // Opera has no cut event... we try to at least catch the key combo
    if (!handled && code == 88 && !hasCopyEvent && (mac ? e.metaKey : e.ctrlKey))
      { cm.replaceSelection("", null, "cut"); }
  }

  // Turn mouse into crosshair when Alt is held on Mac.
  if (code == 18 && !/\bCodeMirror-crosshair\b/.test(cm.display.lineDiv.className))
    { showCrossHair(cm); }
}

function showCrossHair(cm) {
  var lineDiv = cm.display.lineDiv;
  addClass(lineDiv, "CodeMirror-crosshair");

  function up(e) {
    if (e.keyCode == 18 || !e.altKey) {
      rmClass(lineDiv, "CodeMirror-crosshair");
      off(document, "keyup", up);
      off(document, "mouseover", up);
    }
  }
  on(document, "keyup", up);
  on(document, "mouseover", up);
}

function onKeyUp(e) {
  if (e.keyCode == 16) { this.doc.sel.shift = false; }
  signalDOMEvent(this, e);
}

function onKeyPress(e) {
  var cm = this;
  if (eventInWidget(cm.display, e) || signalDOMEvent(cm, e) || e.ctrlKey && !e.altKey || mac && e.metaKey) { return }
  var keyCode = e.keyCode, charCode = e.charCode;
  if (presto && keyCode == lastStoppedKey) {lastStoppedKey = null; e_preventDefault(e); return}
  if ((presto && (!e.which || e.which < 10)) && handleKeyBinding(cm, e)) { return }
  var ch = String.fromCharCode(charCode == null ? keyCode : charCode);
  // Some browsers fire keypress events for backspace
  if (ch == "\x08") { return }
  if (handleCharBinding(cm, e, ch)) { return }
  cm.display.input.onKeyPress(e);
}

var DOUBLECLICK_DELAY = 400;

var PastClick = function(time, pos, button) {
  this.time = time;
  this.pos = pos;
  this.button = button;
};

PastClick.prototype.compare = function (time, pos, button) {
  return this.time + DOUBLECLICK_DELAY > time &&
    cmp(pos, this.pos) == 0 && button == this.button
};

var lastClick;
var lastDoubleClick;
function clickRepeat(pos, button) {
  var now = +new Date;
  if (lastDoubleClick && lastDoubleClick.compare(now, pos, button)) {
    lastClick = lastDoubleClick = null;
    return "triple"
  } else if (lastClick && lastClick.compare(now, pos, button)) {
    lastDoubleClick = new PastClick(now, pos, button);
    lastClick = null;
    return "double"
  } else {
    lastClick = new PastClick(now, pos, button);
    lastDoubleClick = null;
    return "single"
  }
}

// A mouse down can be a single click, double click, triple click,
// start of selection drag, start of text drag, new cursor
// (ctrl-click), rectangle drag (alt-drag), or xwin
// middle-click-paste. Or it might be a click on something we should
// not interfere with, such as a scrollbar or widget.
function onMouseDown(e) {
  var cm = this, display = cm.display;
  if (signalDOMEvent(cm, e) || display.activeTouch && display.input.supportsTouch()) { return }
  display.input.ensurePolled();
  display.shift = e.shiftKey;

  if (eventInWidget(display, e)) {
    if (!webkit) {
      // Briefly turn off draggability, to allow widgets to do
      // normal dragging things.
      display.scroller.draggable = false;
      setTimeout(function () { return display.scroller.draggable = true; }, 100);
    }
    return
  }
  if (clickInGutter(cm, e)) { return }
  var pos = posFromMouse(cm, e), button = e_button(e), repeat = pos ? clickRepeat(pos, button) : "single";
  window.focus();

  // #3261: make sure, that we're not starting a second selection
  if (button == 1 && cm.state.selectingText)
    { cm.state.selectingText(e); }

  if (pos && handleMappedButton(cm, button, pos, repeat, e)) { return }

  if (button == 1) {
    if (pos) { leftButtonDown(cm, pos, repeat, e); }
    else if (e_target(e) == display.scroller) { e_preventDefault(e); }
  } else if (button == 2) {
    if (pos) { extendSelection(cm.doc, pos); }
    setTimeout(function () { return display.input.focus(); }, 20);
  } else if (button == 3) {
    if (captureRightClick) { onContextMenu(cm, e); }
    else { delayBlurEvent(cm); }
  }
}

function handleMappedButton(cm, button, pos, repeat, event) {
  var name = "Click";
  if (repeat == "double") { name = "Double" + name; }
  else if (repeat == "triple") { name = "Triple" + name; }
  name = (button == 1 ? "Left" : button == 2 ? "Middle" : "Right") + name;

  return dispatchKey(cm,  addModifierNames(name, event), event, function (bound) {
    if (typeof bound == "string") { bound = commands[bound]; }
    if (!bound) { return false }
    var done = false;
    try {
      if (cm.isReadOnly()) { cm.state.suppressEdits = true; }
      done = bound(cm, pos) != Pass;
    } finally {
      cm.state.suppressEdits = false;
    }
    return done
  })
}

function configureMouse(cm, repeat, event) {
  var option = cm.getOption("configureMouse");
  var value = option ? option(cm, repeat, event) : {};
  if (value.unit == null) {
    var rect = chromeOS ? event.shiftKey && event.metaKey : event.altKey;
    value.unit = rect ? "rectangle" : repeat == "single" ? "char" : repeat == "double" ? "word" : "line";
  }
  if (value.extend == null || cm.doc.extend) { value.extend = cm.doc.extend || event.shiftKey; }
  if (value.addNew == null) { value.addNew = mac ? event.metaKey : event.ctrlKey; }
  if (value.moveOnDrag == null) { value.moveOnDrag = !(mac ? event.altKey : event.ctrlKey); }
  return value
}

function leftButtonDown(cm, pos, repeat, event) {
  if (ie) { setTimeout(bind(ensureFocus, cm), 0); }
  else { cm.curOp.focus = activeElt(); }

  var behavior = configureMouse(cm, repeat, event);

  var sel = cm.doc.sel, contained;
  if (cm.options.dragDrop && dragAndDrop && !cm.isReadOnly() &&
      repeat == "single" && (contained = sel.contains(pos)) > -1 &&
      (cmp((contained = sel.ranges[contained]).from(), pos) < 0 || pos.xRel > 0) &&
      (cmp(contained.to(), pos) > 0 || pos.xRel < 0))
    { leftButtonStartDrag(cm, event, pos, behavior); }
  else
    { leftButtonSelect(cm, event, pos, behavior); }
}

// Start a text drag. When it ends, see if any dragging actually
// happen, and treat as a click if it didn't.
function leftButtonStartDrag(cm, event, pos, behavior) {
  var display = cm.display, moved = false;
  var dragEnd = operation(cm, function (e) {
    if (webkit) { display.scroller.draggable = false; }
    cm.state.draggingText = false;
    off(document, "mouseup", dragEnd);
    off(document, "mousemove", mouseMove);
    off(display.scroller, "dragstart", dragStart);
    off(display.scroller, "drop", dragEnd);
    if (!moved) {
      e_preventDefault(e);
      if (!behavior.addNew)
        { extendSelection(cm.doc, pos, null, null, behavior.extend); }
      // Work around unexplainable focus problem in IE9 (#2127) and Chrome (#3081)
      if (webkit || ie && ie_version == 9)
        { setTimeout(function () {document.body.focus(); display.input.focus();}, 20); }
      else
        { display.input.focus(); }
    }
  });
  var mouseMove = function(e2) {
    moved = moved || Math.abs(event.clientX - e2.clientX) + Math.abs(event.clientY - e2.clientY) >= 10;
  };
  var dragStart = function () { return moved = true; };
  // Let the drag handler handle this.
  if (webkit) { display.scroller.draggable = true; }
  cm.state.draggingText = dragEnd;
  dragEnd.copy = !behavior.moveOnDrag;
  // IE's approach to draggable
  if (display.scroller.dragDrop) { display.scroller.dragDrop(); }
  on(document, "mouseup", dragEnd);
  on(document, "mousemove", mouseMove);
  on(display.scroller, "dragstart", dragStart);
  on(display.scroller, "drop", dragEnd);

  delayBlurEvent(cm);
  setTimeout(function () { return display.input.focus(); }, 20);
}

function rangeForUnit(cm, pos, unit) {
  if (unit == "char") { return new Range(pos, pos) }
  if (unit == "word") { return cm.findWordAt(pos) }
  if (unit == "line") { return new Range(Pos(pos.line, 0), clipPos(cm.doc, Pos(pos.line + 1, 0))) }
  var result = unit(cm, pos);
  return new Range(result.from, result.to)
}

// Normal selection, as opposed to text dragging.
function leftButtonSelect(cm, event, start, behavior) {
  var display = cm.display, doc = cm.doc;
  e_preventDefault(event);

  var ourRange, ourIndex, startSel = doc.sel, ranges = startSel.ranges;
  if (behavior.addNew && !behavior.extend) {
    ourIndex = doc.sel.contains(start);
    if (ourIndex > -1)
      { ourRange = ranges[ourIndex]; }
    else
      { ourRange = new Range(start, start); }
  } else {
    ourRange = doc.sel.primary();
    ourIndex = doc.sel.primIndex;
  }

  if (behavior.unit == "rectangle") {
    if (!behavior.addNew) { ourRange = new Range(start, start); }
    start = posFromMouse(cm, event, true, true);
    ourIndex = -1;
  } else {
    var range$$1 = rangeForUnit(cm, start, behavior.unit);
    if (behavior.extend)
      { ourRange = extendRange(ourRange, range$$1.anchor, range$$1.head, behavior.extend); }
    else
      { ourRange = range$$1; }
  }

  if (!behavior.addNew) {
    ourIndex = 0;
    setSelection(doc, new Selection([ourRange], 0), sel_mouse);
    startSel = doc.sel;
  } else if (ourIndex == -1) {
    ourIndex = ranges.length;
    setSelection(doc, normalizeSelection(ranges.concat([ourRange]), ourIndex),
                 {scroll: false, origin: "*mouse"});
  } else if (ranges.length > 1 && ranges[ourIndex].empty() && behavior.unit == "char" && !behavior.extend) {
    setSelection(doc, normalizeSelection(ranges.slice(0, ourIndex).concat(ranges.slice(ourIndex + 1)), 0),
                 {scroll: false, origin: "*mouse"});
    startSel = doc.sel;
  } else {
    replaceOneSelection(doc, ourIndex, ourRange, sel_mouse);
  }

  var lastPos = start;
  function extendTo(pos) {
    if (cmp(lastPos, pos) == 0) { return }
    lastPos = pos;

    if (behavior.unit == "rectangle") {
      var ranges = [], tabSize = cm.options.tabSize;
      var startCol = countColumn(getLine(doc, start.line).text, start.ch, tabSize);
      var posCol = countColumn(getLine(doc, pos.line).text, pos.ch, tabSize);
      var left = Math.min(startCol, posCol), right = Math.max(startCol, posCol);
      for (var line = Math.min(start.line, pos.line), end = Math.min(cm.lastLine(), Math.max(start.line, pos.line));
           line <= end; line++) {
        var text = getLine(doc, line).text, leftPos = findColumn(text, left, tabSize);
        if (left == right)
          { ranges.push(new Range(Pos(line, leftPos), Pos(line, leftPos))); }
        else if (text.length > leftPos)
          { ranges.push(new Range(Pos(line, leftPos), Pos(line, findColumn(text, right, tabSize)))); }
      }
      if (!ranges.length) { ranges.push(new Range(start, start)); }
      setSelection(doc, normalizeSelection(startSel.ranges.slice(0, ourIndex).concat(ranges), ourIndex),
                   {origin: "*mouse", scroll: false});
      cm.scrollIntoView(pos);
    } else {
      var oldRange = ourRange;
      var range$$1 = rangeForUnit(cm, pos, behavior.unit);
      var anchor = oldRange.anchor, head;
      if (cmp(range$$1.anchor, anchor) > 0) {
        head = range$$1.head;
        anchor = minPos(oldRange.from(), range$$1.anchor);
      } else {
        head = range$$1.anchor;
        anchor = maxPos(oldRange.to(), range$$1.head);
      }
      var ranges$1 = startSel.ranges.slice(0);
      ranges$1[ourIndex] = new Range(clipPos(doc, anchor), head);
      setSelection(doc, normalizeSelection(ranges$1, ourIndex), sel_mouse);
    }
  }

  var editorSize = display.wrapper.getBoundingClientRect();
  // Used to ensure timeout re-tries don't fire when another extend
  // happened in the meantime (clearTimeout isn't reliable -- at
  // least on Chrome, the timeouts still happen even when cleared,
  // if the clear happens after their scheduled firing time).
  var counter = 0;

  function extend(e) {
    var curCount = ++counter;
    var cur = posFromMouse(cm, e, true, behavior.unit == "rectangle");
    if (!cur) { return }
    if (cmp(cur, lastPos) != 0) {
      cm.curOp.focus = activeElt();
      extendTo(cur);
      var visible = visibleLines(display, doc);
      if (cur.line >= visible.to || cur.line < visible.from)
        { setTimeout(operation(cm, function () {if (counter == curCount) { extend(e); }}), 150); }
    } else {
      var outside = e.clientY < editorSize.top ? -20 : e.clientY > editorSize.bottom ? 20 : 0;
      if (outside) { setTimeout(operation(cm, function () {
        if (counter != curCount) { return }
        display.scroller.scrollTop += outside;
        extend(e);
      }), 50); }
    }
  }

  function done(e) {
    cm.state.selectingText = false;
    counter = Infinity;
    e_preventDefault(e);
    display.input.focus();
    off(document, "mousemove", move);
    off(document, "mouseup", up);
    doc.history.lastSelOrigin = null;
  }

  var move = operation(cm, function (e) {
    if (!e_button(e)) { done(e); }
    else { extend(e); }
  });
  var up = operation(cm, done);
  cm.state.selectingText = up;
  on(document, "mousemove", move);
  on(document, "mouseup", up);
}


// Determines whether an event happened in the gutter, and fires the
// handlers for the corresponding event.
function gutterEvent(cm, e, type, prevent) {
  var mX, mY;
  try { mX = e.clientX; mY = e.clientY; }
  catch(e) { return false }
  if (mX >= Math.floor(cm.display.gutters.getBoundingClientRect().right)) { return false }
  if (prevent) { e_preventDefault(e); }

  var display = cm.display;
  var lineBox = display.lineDiv.getBoundingClientRect();

  if (mY > lineBox.bottom || !hasHandler(cm, type)) { return e_defaultPrevented(e) }
  mY -= lineBox.top - display.viewOffset;

  for (var i = 0; i < cm.options.gutters.length; ++i) {
    var g = display.gutters.childNodes[i];
    if (g && g.getBoundingClientRect().right >= mX) {
      var line = lineAtHeight(cm.doc, mY);
      var gutter = cm.options.gutters[i];
      signal(cm, type, cm, line, gutter, e);
      return e_defaultPrevented(e)
    }
  }
}

function clickInGutter(cm, e) {
  return gutterEvent(cm, e, "gutterClick", true)
}

// CONTEXT MENU HANDLING

// To make the context menu work, we need to briefly unhide the
// textarea (making it as unobtrusive as possible) to let the
// right-click take effect on it.
function onContextMenu(cm, e) {
  if (eventInWidget(cm.display, e) || contextMenuInGutter(cm, e)) { return }
  if (signalDOMEvent(cm, e, "contextmenu")) { return }
  cm.display.input.onContextMenu(e);
}

function contextMenuInGutter(cm, e) {
  if (!hasHandler(cm, "gutterContextMenu")) { return false }
  return gutterEvent(cm, e, "gutterContextMenu", false)
}

function themeChanged(cm) {
  cm.display.wrapper.className = cm.display.wrapper.className.replace(/\s*cm-s-\S+/g, "") +
    cm.options.theme.replace(/(^|\s)\s*/g, " cm-s-");
  clearCaches(cm);
}

var Init = {toString: function(){return "CodeMirror.Init"}};

var defaults = {};
var optionHandlers = {};

function defineOptions(CodeMirror) {
  var optionHandlers = CodeMirror.optionHandlers;

  function option(name, deflt, handle, notOnInit) {
    CodeMirror.defaults[name] = deflt;
    if (handle) { optionHandlers[name] =
      notOnInit ? function (cm, val, old) {if (old != Init) { handle(cm, val, old); }} : handle; }
  }

  CodeMirror.defineOption = option;

  // Passed to option handlers when there is no old value.
  CodeMirror.Init = Init;

  // These two are, on init, called from the constructor because they
  // have to be initialized before the editor can start at all.
  option("value", "", function (cm, val) { return cm.setValue(val); }, true);
  option("mode", null, function (cm, val) {
    cm.doc.modeOption = val;
    loadMode(cm);
  }, true);

  option("indentUnit", 2, loadMode, true);
  option("indentWithTabs", false);
  option("smartIndent", true);
  option("tabSize", 4, function (cm) {
    resetModeState(cm);
    clearCaches(cm);
    regChange(cm);
  }, true);
  option("lineSeparator", null, function (cm, val) {
    cm.doc.lineSep = val;
    if (!val) { return }
    var newBreaks = [], lineNo = cm.doc.first;
    cm.doc.iter(function (line) {
      for (var pos = 0;;) {
        var found = line.text.indexOf(val, pos);
        if (found == -1) { break }
        pos = found + val.length;
        newBreaks.push(Pos(lineNo, found));
      }
      lineNo++;
    });
    for (var i = newBreaks.length - 1; i >= 0; i--)
      { replaceRange(cm.doc, val, newBreaks[i], Pos(newBreaks[i].line, newBreaks[i].ch + val.length)); }
  });
  option("specialChars", /[\u0000-\u001f\u007f-\u009f\u00ad\u061c\u200b-\u200f\u2028\u2029\ufeff]/g, function (cm, val, old) {
    cm.state.specialChars = new RegExp(val.source + (val.test("\t") ? "" : "|\t"), "g");
    if (old != Init) { cm.refresh(); }
  });
  option("specialCharPlaceholder", defaultSpecialCharPlaceholder, function (cm) { return cm.refresh(); }, true);
  option("electricChars", true);
  option("inputStyle", mobile ? "contenteditable" : "textarea", function () {
    throw new Error("inputStyle can not (yet) be changed in a running editor") // FIXME
  }, true);
  option("spellcheck", false, function (cm, val) { return cm.getInputField().spellcheck = val; }, true);
  option("rtlMoveVisually", !windows);
  option("wholeLineUpdateBefore", true);

  option("theme", "default", function (cm) {
    themeChanged(cm);
    guttersChanged(cm);
  }, true);
  option("keyMap", "default", function (cm, val, old) {
    var next = getKeyMap(val);
    var prev = old != Init && getKeyMap(old);
    if (prev && prev.detach) { prev.detach(cm, next); }
    if (next.attach) { next.attach(cm, prev || null); }
  });
  option("extraKeys", null);
  option("configureMouse", null);

  option("lineWrapping", false, wrappingChanged, true);
  option("gutters", [], function (cm) {
    setGuttersForLineNumbers(cm.options);
    guttersChanged(cm);
  }, true);
  option("fixedGutter", true, function (cm, val) {
    cm.display.gutters.style.left = val ? compensateForHScroll(cm.display) + "px" : "0";
    cm.refresh();
  }, true);
  option("coverGutterNextToScrollbar", false, function (cm) { return updateScrollbars(cm); }, true);
  option("scrollbarStyle", "native", function (cm) {
    initScrollbars(cm);
    updateScrollbars(cm);
    cm.display.scrollbars.setScrollTop(cm.doc.scrollTop);
    cm.display.scrollbars.setScrollLeft(cm.doc.scrollLeft);
  }, true);
  option("lineNumbers", false, function (cm) {
    setGuttersForLineNumbers(cm.options);
    guttersChanged(cm);
  }, true);
  option("firstLineNumber", 1, guttersChanged, true);
  option("lineNumberFormatter", function (integer) { return integer; }, guttersChanged, true);
  option("showCursorWhenSelecting", false, updateSelection, true);

  option("resetSelectionOnContextMenu", true);
  option("lineWiseCopyCut", true);
  option("pasteLinesPerSelection", true);

  option("readOnly", false, function (cm, val) {
    if (val == "nocursor") {
      onBlur(cm);
      cm.display.input.blur();
    }
    cm.display.input.readOnlyChanged(val);
  });
  option("disableInput", false, function (cm, val) {if (!val) { cm.display.input.reset(); }}, true);
  option("dragDrop", true, dragDropChanged);
  option("allowDropFileTypes", null);

  option("cursorBlinkRate", 530);
  option("cursorScrollMargin", 0);
  option("cursorHeight", 1, updateSelection, true);
  option("singleCursorHeightPerLine", true, updateSelection, true);
  option("workTime", 100);
  option("workDelay", 100);
  option("flattenSpans", true, resetModeState, true);
  option("addModeClass", false, resetModeState, true);
  option("pollInterval", 100);
  option("undoDepth", 200, function (cm, val) { return cm.doc.history.undoDepth = val; });
  option("historyEventDelay", 1250);
  option("viewportMargin", 10, function (cm) { return cm.refresh(); }, true);
  option("maxHighlightLength", 10000, resetModeState, true);
  option("moveInputWithCursor", true, function (cm, val) {
    if (!val) { cm.display.input.resetPosition(); }
  });

  option("tabindex", null, function (cm, val) { return cm.display.input.getField().tabIndex = val || ""; });
  option("autofocus", null);
  option("direction", "ltr", function (cm, val) { return cm.doc.setDirection(val); }, true);
}

function guttersChanged(cm) {
  updateGutters(cm);
  regChange(cm);
  alignHorizontally(cm);
}

function dragDropChanged(cm, value, old) {
  var wasOn = old && old != Init;
  if (!value != !wasOn) {
    var funcs = cm.display.dragFunctions;
    var toggle = value ? on : off;
    toggle(cm.display.scroller, "dragstart", funcs.start);
    toggle(cm.display.scroller, "dragenter", funcs.enter);
    toggle(cm.display.scroller, "dragover", funcs.over);
    toggle(cm.display.scroller, "dragleave", funcs.leave);
    toggle(cm.display.scroller, "drop", funcs.drop);
  }
}

function wrappingChanged(cm) {
  if (cm.options.lineWrapping) {
    addClass(cm.display.wrapper, "CodeMirror-wrap");
    cm.display.sizer.style.minWidth = "";
    cm.display.sizerWidth = null;
  } else {
    rmClass(cm.display.wrapper, "CodeMirror-wrap");
    findMaxLine(cm);
  }
  estimateLineHeights(cm);
  regChange(cm);
  clearCaches(cm);
  setTimeout(function () { return updateScrollbars(cm); }, 100);
}

// A CodeMirror instance represents an editor. This is the object
// that user code is usually dealing with.

function CodeMirror$1(place, options) {
  var this$1 = this;

  if (!(this instanceof CodeMirror$1)) { return new CodeMirror$1(place, options) }

  this.options = options = options ? copyObj(options) : {};
  // Determine effective options based on given values and defaults.
  copyObj(defaults, options, false);
  setGuttersForLineNumbers(options);

  var doc = options.value;
  if (typeof doc == "string") { doc = new Doc(doc, options.mode, null, options.lineSeparator, options.direction); }
  this.doc = doc;

  var input = new CodeMirror$1.inputStyles[options.inputStyle](this);
  var display = this.display = new Display(place, doc, input);
  display.wrapper.CodeMirror = this;
  updateGutters(this);
  themeChanged(this);
  if (options.lineWrapping)
    { this.display.wrapper.className += " CodeMirror-wrap"; }
  initScrollbars(this);

  this.state = {
    keyMaps: [],  // stores maps added by addKeyMap
    overlays: [], // highlighting overlays, as added by addOverlay
    modeGen: 0,   // bumped when mode/overlay changes, used to invalidate highlighting info
    overwrite: false,
    delayingBlurEvent: false,
    focused: false,
    suppressEdits: false, // used to disable editing during key handlers when in readOnly mode
    pasteIncoming: false, cutIncoming: false, // help recognize paste/cut edits in input.poll
    selectingText: false,
    draggingText: false,
    highlight: new Delayed(), // stores highlight worker timeout
    keySeq: null,  // Unfinished key sequence
    specialChars: null
  };

  if (options.autofocus && !mobile) { display.input.focus(); }

  // Override magic textarea content restore that IE sometimes does
  // on our hidden textarea on reload
  if (ie && ie_version < 11) { setTimeout(function () { return this$1.display.input.reset(true); }, 20); }

  registerEventHandlers(this);
  ensureGlobalHandlers();

  startOperation(this);
  this.curOp.forceUpdate = true;
  attachDoc(this, doc);

  if ((options.autofocus && !mobile) || this.hasFocus())
    { setTimeout(bind(onFocus, this), 20); }
  else
    { onBlur(this); }

  for (var opt in optionHandlers) { if (optionHandlers.hasOwnProperty(opt))
    { optionHandlers[opt](this$1, options[opt], Init); } }
  maybeUpdateLineNumberWidth(this);
  if (options.finishInit) { options.finishInit(this); }
  for (var i = 0; i < initHooks.length; ++i) { initHooks[i](this$1); }
  endOperation(this);
  // Suppress optimizelegibility in Webkit, since it breaks text
  // measuring on line wrapping boundaries.
  if (webkit && options.lineWrapping &&
      getComputedStyle(display.lineDiv).textRendering == "optimizelegibility")
    { display.lineDiv.style.textRendering = "auto"; }
}

// The default configuration options.
CodeMirror$1.defaults = defaults;
// Functions to run when options are changed.
CodeMirror$1.optionHandlers = optionHandlers;

// Attach the necessary event handlers when initializing the editor
function registerEventHandlers(cm) {
  var d = cm.display;
  on(d.scroller, "mousedown", operation(cm, onMouseDown));
  // Older IE's will not fire a second mousedown for a double click
  if (ie && ie_version < 11)
    { on(d.scroller, "dblclick", operation(cm, function (e) {
      if (signalDOMEvent(cm, e)) { return }
      var pos = posFromMouse(cm, e);
      if (!pos || clickInGutter(cm, e) || eventInWidget(cm.display, e)) { return }
      e_preventDefault(e);
      var word = cm.findWordAt(pos);
      extendSelection(cm.doc, word.anchor, word.head);
    })); }
  else
    { on(d.scroller, "dblclick", function (e) { return signalDOMEvent(cm, e) || e_preventDefault(e); }); }
  // Some browsers fire contextmenu *after* opening the menu, at
  // which point we can't mess with it anymore. Context menu is
  // handled in onMouseDown for these browsers.
  if (!captureRightClick) { on(d.scroller, "contextmenu", function (e) { return onContextMenu(cm, e); }); }

  // Used to suppress mouse event handling when a touch happens
  var touchFinished, prevTouch = {end: 0};
  function finishTouch() {
    if (d.activeTouch) {
      touchFinished = setTimeout(function () { return d.activeTouch = null; }, 1000);
      prevTouch = d.activeTouch;
      prevTouch.end = +new Date;
    }
  }
  function isMouseLikeTouchEvent(e) {
    if (e.touches.length != 1) { return false }
    var touch = e.touches[0];
    return touch.radiusX <= 1 && touch.radiusY <= 1
  }
  function farAway(touch, other) {
    if (other.left == null) { return true }
    var dx = other.left - touch.left, dy = other.top - touch.top;
    return dx * dx + dy * dy > 20 * 20
  }
  on(d.scroller, "touchstart", function (e) {
    if (!signalDOMEvent(cm, e) && !isMouseLikeTouchEvent(e)) {
      d.input.ensurePolled();
      clearTimeout(touchFinished);
      var now = +new Date;
      d.activeTouch = {start: now, moved: false,
                       prev: now - prevTouch.end <= 300 ? prevTouch : null};
      if (e.touches.length == 1) {
        d.activeTouch.left = e.touches[0].pageX;
        d.activeTouch.top = e.touches[0].pageY;
      }
    }
  });
  on(d.scroller, "touchmove", function () {
    if (d.activeTouch) { d.activeTouch.moved = true; }
  });
  on(d.scroller, "touchend", function (e) {
    var touch = d.activeTouch;
    if (touch && !eventInWidget(d, e) && touch.left != null &&
        !touch.moved && new Date - touch.start < 300) {
      var pos = cm.coordsChar(d.activeTouch, "page"), range;
      if (!touch.prev || farAway(touch, touch.prev)) // Single tap
        { range = new Range(pos, pos); }
      else if (!touch.prev.prev || farAway(touch, touch.prev.prev)) // Double tap
        { range = cm.findWordAt(pos); }
      else // Triple tap
        { range = new Range(Pos(pos.line, 0), clipPos(cm.doc, Pos(pos.line + 1, 0))); }
      cm.setSelection(range.anchor, range.head);
      cm.focus();
      e_preventDefault(e);
    }
    finishTouch();
  });
  on(d.scroller, "touchcancel", finishTouch);

  // Sync scrolling between fake scrollbars and real scrollable
  // area, ensure viewport is updated when scrolling.
  on(d.scroller, "scroll", function () {
    if (d.scroller.clientHeight) {
      updateScrollTop(cm, d.scroller.scrollTop);
      setScrollLeft(cm, d.scroller.scrollLeft, true);
      signal(cm, "scroll", cm);
    }
  });

  // Listen to wheel events in order to try and update the viewport on time.
  on(d.scroller, "mousewheel", function (e) { return onScrollWheel(cm, e); });
  on(d.scroller, "DOMMouseScroll", function (e) { return onScrollWheel(cm, e); });

  // Prevent wrapper from ever scrolling
  on(d.wrapper, "scroll", function () { return d.wrapper.scrollTop = d.wrapper.scrollLeft = 0; });

  d.dragFunctions = {
    enter: function (e) {if (!signalDOMEvent(cm, e)) { e_stop(e); }},
    over: function (e) {if (!signalDOMEvent(cm, e)) { onDragOver(cm, e); e_stop(e); }},
    start: function (e) { return onDragStart(cm, e); },
    drop: operation(cm, onDrop),
    leave: function (e) {if (!signalDOMEvent(cm, e)) { clearDragCursor(cm); }}
  };

  var inp = d.input.getField();
  on(inp, "keyup", function (e) { return onKeyUp.call(cm, e); });
  on(inp, "keydown", operation(cm, onKeyDown));
  on(inp, "keypress", operation(cm, onKeyPress));
  on(inp, "focus", function (e) { return onFocus(cm, e); });
  on(inp, "blur", function (e) { return onBlur(cm, e); });
}

var initHooks = [];
CodeMirror$1.defineInitHook = function (f) { return initHooks.push(f); };

// Indent the given line. The how parameter can be "smart",
// "add"/null, "subtract", or "prev". When aggressive is false
// (typically set to true for forced single-line indents), empty
// lines are not indented, and places where the mode returns Pass
// are left alone.
function indentLine(cm, n, how, aggressive) {
  var doc = cm.doc, state;
  if (how == null) { how = "add"; }
  if (how == "smart") {
    // Fall back to "prev" when the mode doesn't have an indentation
    // method.
    if (!doc.mode.indent) { how = "prev"; }
    else { state = getContextBefore(cm, n).state; }
  }

  var tabSize = cm.options.tabSize;
  var line = getLine(doc, n), curSpace = countColumn(line.text, null, tabSize);
  if (line.stateAfter) { line.stateAfter = null; }
  var curSpaceString = line.text.match(/^\s*/)[0], indentation;
  if (!aggressive && !/\S/.test(line.text)) {
    indentation = 0;
    how = "not";
  } else if (how == "smart") {
    indentation = doc.mode.indent(state, line.text.slice(curSpaceString.length), line.text);
    if (indentation == Pass || indentation > 150) {
      if (!aggressive) { return }
      how = "prev";
    }
  }
  if (how == "prev") {
    if (n > doc.first) { indentation = countColumn(getLine(doc, n-1).text, null, tabSize); }
    else { indentation = 0; }
  } else if (how == "add") {
    indentation = curSpace + cm.options.indentUnit;
  } else if (how == "subtract") {
    indentation = curSpace - cm.options.indentUnit;
  } else if (typeof how == "number") {
    indentation = curSpace + how;
  }
  indentation = Math.max(0, indentation);

  var indentString = "", pos = 0;
  if (cm.options.indentWithTabs)
    { for (var i = Math.floor(indentation / tabSize); i; --i) {pos += tabSize; indentString += "\t";} }
  if (pos < indentation) { indentString += spaceStr(indentation - pos); }

  if (indentString != curSpaceString) {
    replaceRange(doc, indentString, Pos(n, 0), Pos(n, curSpaceString.length), "+input");
    line.stateAfter = null;
    return true
  } else {
    // Ensure that, if the cursor was in the whitespace at the start
    // of the line, it is moved to the end of that space.
    for (var i$1 = 0; i$1 < doc.sel.ranges.length; i$1++) {
      var range = doc.sel.ranges[i$1];
      if (range.head.line == n && range.head.ch < curSpaceString.length) {
        var pos$1 = Pos(n, curSpaceString.length);
        replaceOneSelection(doc, i$1, new Range(pos$1, pos$1));
        break
      }
    }
  }
}

// This will be set to a {lineWise: bool, text: [string]} object, so
// that, when pasting, we know what kind of selections the copied
// text was made out of.
var lastCopied = null;

function setLastCopied(newLastCopied) {
  lastCopied = newLastCopied;
}

function applyTextInput(cm, inserted, deleted, sel, origin) {
  var doc = cm.doc;
  cm.display.shift = false;
  if (!sel) { sel = doc.sel; }

  var paste = cm.state.pasteIncoming || origin == "paste";
  var textLines = splitLinesAuto(inserted), multiPaste = null;
  // When pasing N lines into N selections, insert one line per selection
  if (paste && sel.ranges.length > 1) {
    if (lastCopied && lastCopied.text.join("\n") == inserted) {
      if (sel.ranges.length % lastCopied.text.length == 0) {
        multiPaste = [];
        for (var i = 0; i < lastCopied.text.length; i++)
          { multiPaste.push(doc.splitLines(lastCopied.text[i])); }
      }
    } else if (textLines.length == sel.ranges.length && cm.options.pasteLinesPerSelection) {
      multiPaste = map(textLines, function (l) { return [l]; });
    }
  }

  var updateInput;
  // Normal behavior is to insert the new text into every selection
  for (var i$1 = sel.ranges.length - 1; i$1 >= 0; i$1--) {
    var range$$1 = sel.ranges[i$1];
    var from = range$$1.from(), to = range$$1.to();
    if (range$$1.empty()) {
      if (deleted && deleted > 0) // Handle deletion
        { from = Pos(from.line, from.ch - deleted); }
      else if (cm.state.overwrite && !paste) // Handle overwrite
        { to = Pos(to.line, Math.min(getLine(doc, to.line).text.length, to.ch + lst(textLines).length)); }
      else if (lastCopied && lastCopied.lineWise && lastCopied.text.join("\n") == inserted)
        { from = to = Pos(from.line, 0); }
    }
    updateInput = cm.curOp.updateInput;
    var changeEvent = {from: from, to: to, text: multiPaste ? multiPaste[i$1 % multiPaste.length] : textLines,
                       origin: origin || (paste ? "paste" : cm.state.cutIncoming ? "cut" : "+input")};
    makeChange(cm.doc, changeEvent);
    signalLater(cm, "inputRead", cm, changeEvent);
  }
  if (inserted && !paste)
    { triggerElectric(cm, inserted); }

  ensureCursorVisible(cm);
  cm.curOp.updateInput = updateInput;
  cm.curOp.typing = true;
  cm.state.pasteIncoming = cm.state.cutIncoming = false;
}

function handlePaste(e, cm) {
  var pasted = e.clipboardData && e.clipboardData.getData("Text");
  if (pasted) {
    e.preventDefault();
    if (!cm.isReadOnly() && !cm.options.disableInput)
      { runInOp(cm, function () { return applyTextInput(cm, pasted, 0, null, "paste"); }); }
    return true
  }
}

function triggerElectric(cm, inserted) {
  // When an 'electric' character is inserted, immediately trigger a reindent
  if (!cm.options.electricChars || !cm.options.smartIndent) { return }
  var sel = cm.doc.sel;

  for (var i = sel.ranges.length - 1; i >= 0; i--) {
    var range$$1 = sel.ranges[i];
    if (range$$1.head.ch > 100 || (i && sel.ranges[i - 1].head.line == range$$1.head.line)) { continue }
    var mode = cm.getModeAt(range$$1.head);
    var indented = false;
    if (mode.electricChars) {
      for (var j = 0; j < mode.electricChars.length; j++)
        { if (inserted.indexOf(mode.electricChars.charAt(j)) > -1) {
          indented = indentLine(cm, range$$1.head.line, "smart");
          break
        } }
    } else if (mode.electricInput) {
      if (mode.electricInput.test(getLine(cm.doc, range$$1.head.line).text.slice(0, range$$1.head.ch)))
        { indented = indentLine(cm, range$$1.head.line, "smart"); }
    }
    if (indented) { signalLater(cm, "electricInput", cm, range$$1.head.line); }
  }
}

function copyableRanges(cm) {
  var text = [], ranges = [];
  for (var i = 0; i < cm.doc.sel.ranges.length; i++) {
    var line = cm.doc.sel.ranges[i].head.line;
    var lineRange = {anchor: Pos(line, 0), head: Pos(line + 1, 0)};
    ranges.push(lineRange);
    text.push(cm.getRange(lineRange.anchor, lineRange.head));
  }
  return {text: text, ranges: ranges}
}

function disableBrowserMagic(field, spellcheck) {
  field.setAttribute("autocorrect", "off");
  field.setAttribute("autocapitalize", "off");
  field.setAttribute("spellcheck", !!spellcheck);
}

function hiddenTextarea() {
  var te = elt("textarea", null, null, "position: absolute; bottom: -1em; padding: 0; width: 1px; height: 1em; outline: none");
  var div = elt("div", [te], null, "overflow: hidden; position: relative; width: 3px; height: 0px;");
  // The textarea is kept positioned near the cursor to prevent the
  // fact that it'll be scrolled into view on input from scrolling
  // our fake cursor out of view. On webkit, when wrap=off, paste is
  // very slow. So make the area wide instead.
  if (webkit) { te.style.width = "1000px"; }
  else { te.setAttribute("wrap", "off"); }
  // If border: 0; -- iOS fails to open keyboard (issue #1287)
  if (ios) { te.style.border = "1px solid black"; }
  disableBrowserMagic(te);
  return div
}

// The publicly visible API. Note that methodOp(f) means
// 'wrap f in an operation, performed on its `this` parameter'.

// This is not the complete set of editor methods. Most of the
// methods defined on the Doc type are also injected into
// CodeMirror.prototype, for backwards compatibility and
// convenience.

var addEditorMethods = function(CodeMirror) {
  var optionHandlers = CodeMirror.optionHandlers;

  var helpers = CodeMirror.helpers = {};

  CodeMirror.prototype = {
    constructor: CodeMirror,
    focus: function(){window.focus(); this.display.input.focus();},

    setOption: function(option, value) {
      var options = this.options, old = options[option];
      if (options[option] == value && option != "mode") { return }
      options[option] = value;
      if (optionHandlers.hasOwnProperty(option))
        { operation(this, optionHandlers[option])(this, value, old); }
      signal(this, "optionChange", this, option);
    },

    getOption: function(option) {return this.options[option]},
    getDoc: function() {return this.doc},

    addKeyMap: function(map$$1, bottom) {
      this.state.keyMaps[bottom ? "push" : "unshift"](getKeyMap(map$$1));
    },
    removeKeyMap: function(map$$1) {
      var maps = this.state.keyMaps;
      for (var i = 0; i < maps.length; ++i)
        { if (maps[i] == map$$1 || maps[i].name == map$$1) {
          maps.splice(i, 1);
          return true
        } }
    },

    addOverlay: methodOp(function(spec, options) {
      var mode = spec.token ? spec : CodeMirror.getMode(this.options, spec);
      if (mode.startState) { throw new Error("Overlays may not be stateful.") }
      insertSorted(this.state.overlays,
                   {mode: mode, modeSpec: spec, opaque: options && options.opaque,
                    priority: (options && options.priority) || 0},
                   function (overlay) { return overlay.priority; });
      this.state.modeGen++;
      regChange(this);
    }),
    removeOverlay: methodOp(function(spec) {
      var this$1 = this;

      var overlays = this.state.overlays;
      for (var i = 0; i < overlays.length; ++i) {
        var cur = overlays[i].modeSpec;
        if (cur == spec || typeof spec == "string" && cur.name == spec) {
          overlays.splice(i, 1);
          this$1.state.modeGen++;
          regChange(this$1);
          return
        }
      }
    }),

    indentLine: methodOp(function(n, dir, aggressive) {
      if (typeof dir != "string" && typeof dir != "number") {
        if (dir == null) { dir = this.options.smartIndent ? "smart" : "prev"; }
        else { dir = dir ? "add" : "subtract"; }
      }
      if (isLine(this.doc, n)) { indentLine(this, n, dir, aggressive); }
    }),
    indentSelection: methodOp(function(how) {
      var this$1 = this;

      var ranges = this.doc.sel.ranges, end = -1;
      for (var i = 0; i < ranges.length; i++) {
        var range$$1 = ranges[i];
        if (!range$$1.empty()) {
          var from = range$$1.from(), to = range$$1.to();
          var start = Math.max(end, from.line);
          end = Math.min(this$1.lastLine(), to.line - (to.ch ? 0 : 1)) + 1;
          for (var j = start; j < end; ++j)
            { indentLine(this$1, j, how); }
          var newRanges = this$1.doc.sel.ranges;
          if (from.ch == 0 && ranges.length == newRanges.length && newRanges[i].from().ch > 0)
            { replaceOneSelection(this$1.doc, i, new Range(from, newRanges[i].to()), sel_dontScroll); }
        } else if (range$$1.head.line > end) {
          indentLine(this$1, range$$1.head.line, how, true);
          end = range$$1.head.line;
          if (i == this$1.doc.sel.primIndex) { ensureCursorVisible(this$1); }
        }
      }
    }),

    // Fetch the parser token for a given character. Useful for hacks
    // that want to inspect the mode state (say, for completion).
    getTokenAt: function(pos, precise) {
      return takeToken(this, pos, precise)
    },

    getLineTokens: function(line, precise) {
      return takeToken(this, Pos(line), precise, true)
    },

    getTokenTypeAt: function(pos) {
      pos = clipPos(this.doc, pos);
      var styles = getLineStyles(this, getLine(this.doc, pos.line));
      var before = 0, after = (styles.length - 1) / 2, ch = pos.ch;
      var type;
      if (ch == 0) { type = styles[2]; }
      else { for (;;) {
        var mid = (before + after) >> 1;
        if ((mid ? styles[mid * 2 - 1] : 0) >= ch) { after = mid; }
        else if (styles[mid * 2 + 1] < ch) { before = mid + 1; }
        else { type = styles[mid * 2 + 2]; break }
      } }
      var cut = type ? type.indexOf("overlay ") : -1;
      return cut < 0 ? type : cut == 0 ? null : type.slice(0, cut - 1)
    },

    getModeAt: function(pos) {
      var mode = this.doc.mode;
      if (!mode.innerMode) { return mode }
      return CodeMirror.innerMode(mode, this.getTokenAt(pos).state).mode
    },

    getHelper: function(pos, type) {
      return this.getHelpers(pos, type)[0]
    },

    getHelpers: function(pos, type) {
      var this$1 = this;

      var found = [];
      if (!helpers.hasOwnProperty(type)) { return found }
      var help = helpers[type], mode = this.getModeAt(pos);
      if (typeof mode[type] == "string") {
        if (help[mode[type]]) { found.push(help[mode[type]]); }
      } else if (mode[type]) {
        for (var i = 0; i < mode[type].length; i++) {
          var val = help[mode[type][i]];
          if (val) { found.push(val); }
        }
      } else if (mode.helperType && help[mode.helperType]) {
        found.push(help[mode.helperType]);
      } else if (help[mode.name]) {
        found.push(help[mode.name]);
      }
      for (var i$1 = 0; i$1 < help._global.length; i$1++) {
        var cur = help._global[i$1];
        if (cur.pred(mode, this$1) && indexOf(found, cur.val) == -1)
          { found.push(cur.val); }
      }
      return found
    },

    getStateAfter: function(line, precise) {
      var doc = this.doc;
      line = clipLine(doc, line == null ? doc.first + doc.size - 1: line);
      return getContextBefore(this, line + 1, precise).state
    },

    cursorCoords: function(start, mode) {
      var pos, range$$1 = this.doc.sel.primary();
      if (start == null) { pos = range$$1.head; }
      else if (typeof start == "object") { pos = clipPos(this.doc, start); }
      else { pos = start ? range$$1.from() : range$$1.to(); }
      return cursorCoords(this, pos, mode || "page")
    },

    charCoords: function(pos, mode) {
      return charCoords(this, clipPos(this.doc, pos), mode || "page")
    },

    coordsChar: function(coords, mode) {
      coords = fromCoordSystem(this, coords, mode || "page");
      return coordsChar(this, coords.left, coords.top)
    },

    lineAtHeight: function(height, mode) {
      height = fromCoordSystem(this, {top: height, left: 0}, mode || "page").top;
      return lineAtHeight(this.doc, height + this.display.viewOffset)
    },
    heightAtLine: function(line, mode, includeWidgets) {
      var end = false, lineObj;
      if (typeof line == "number") {
        var last = this.doc.first + this.doc.size - 1;
        if (line < this.doc.first) { line = this.doc.first; }
        else if (line > last) { line = last; end = true; }
        lineObj = getLine(this.doc, line);
      } else {
        lineObj = line;
      }
      return intoCoordSystem(this, lineObj, {top: 0, left: 0}, mode || "page", includeWidgets || end).top +
        (end ? this.doc.height - heightAtLine(lineObj) : 0)
    },

    defaultTextHeight: function() { return textHeight(this.display) },
    defaultCharWidth: function() { return charWidth(this.display) },

    getViewport: function() { return {from: this.display.viewFrom, to: this.display.viewTo}},

    addWidget: function(pos, node, scroll, vert, horiz) {
      var display = this.display;
      pos = cursorCoords(this, clipPos(this.doc, pos));
      var top = pos.bottom, left = pos.left;
      node.style.position = "absolute";
      node.setAttribute("cm-ignore-events", "true");
      this.display.input.setUneditable(node);
      display.sizer.appendChild(node);
      if (vert == "over") {
        top = pos.top;
      } else if (vert == "above" || vert == "near") {
        var vspace = Math.max(display.wrapper.clientHeight, this.doc.height),
        hspace = Math.max(display.sizer.clientWidth, display.lineSpace.clientWidth);
        // Default to positioning above (if specified and possible); otherwise default to positioning below
        if ((vert == 'above' || pos.bottom + node.offsetHeight > vspace) && pos.top > node.offsetHeight)
          { top = pos.top - node.offsetHeight; }
        else if (pos.bottom + node.offsetHeight <= vspace)
          { top = pos.bottom; }
        if (left + node.offsetWidth > hspace)
          { left = hspace - node.offsetWidth; }
      }
      node.style.top = top + "px";
      node.style.left = node.style.right = "";
      if (horiz == "right") {
        left = display.sizer.clientWidth - node.offsetWidth;
        node.style.right = "0px";
      } else {
        if (horiz == "left") { left = 0; }
        else if (horiz == "middle") { left = (display.sizer.clientWidth - node.offsetWidth) / 2; }
        node.style.left = left + "px";
      }
      if (scroll)
        { scrollIntoView(this, {left: left, top: top, right: left + node.offsetWidth, bottom: top + node.offsetHeight}); }
    },

    triggerOnKeyDown: methodOp(onKeyDown),
    triggerOnKeyPress: methodOp(onKeyPress),
    triggerOnKeyUp: onKeyUp,
    triggerOnMouseDown: methodOp(onMouseDown),

    execCommand: function(cmd) {
      if (commands.hasOwnProperty(cmd))
        { return commands[cmd].call(null, this) }
    },

    triggerElectric: methodOp(function(text) { triggerElectric(this, text); }),

    findPosH: function(from, amount, unit, visually) {
      var this$1 = this;

      var dir = 1;
      if (amount < 0) { dir = -1; amount = -amount; }
      var cur = clipPos(this.doc, from);
      for (var i = 0; i < amount; ++i) {
        cur = findPosH(this$1.doc, cur, dir, unit, visually);
        if (cur.hitSide) { break }
      }
      return cur
    },

    moveH: methodOp(function(dir, unit) {
      var this$1 = this;

      this.extendSelectionsBy(function (range$$1) {
        if (this$1.display.shift || this$1.doc.extend || range$$1.empty())
          { return findPosH(this$1.doc, range$$1.head, dir, unit, this$1.options.rtlMoveVisually) }
        else
          { return dir < 0 ? range$$1.from() : range$$1.to() }
      }, sel_move);
    }),

    deleteH: methodOp(function(dir, unit) {
      var sel = this.doc.sel, doc = this.doc;
      if (sel.somethingSelected())
        { doc.replaceSelection("", null, "+delete"); }
      else
        { deleteNearSelection(this, function (range$$1) {
          var other = findPosH(doc, range$$1.head, dir, unit, false);
          return dir < 0 ? {from: other, to: range$$1.head} : {from: range$$1.head, to: other}
        }); }
    }),

    findPosV: function(from, amount, unit, goalColumn) {
      var this$1 = this;

      var dir = 1, x = goalColumn;
      if (amount < 0) { dir = -1; amount = -amount; }
      var cur = clipPos(this.doc, from);
      for (var i = 0; i < amount; ++i) {
        var coords = cursorCoords(this$1, cur, "div");
        if (x == null) { x = coords.left; }
        else { coords.left = x; }
        cur = findPosV(this$1, coords, dir, unit);
        if (cur.hitSide) { break }
      }
      return cur
    },

    moveV: methodOp(function(dir, unit) {
      var this$1 = this;

      var doc = this.doc, goals = [];
      var collapse = !this.display.shift && !doc.extend && doc.sel.somethingSelected();
      doc.extendSelectionsBy(function (range$$1) {
        if (collapse)
          { return dir < 0 ? range$$1.from() : range$$1.to() }
        var headPos = cursorCoords(this$1, range$$1.head, "div");
        if (range$$1.goalColumn != null) { headPos.left = range$$1.goalColumn; }
        goals.push(headPos.left);
        var pos = findPosV(this$1, headPos, dir, unit);
        if (unit == "page" && range$$1 == doc.sel.primary())
          { addToScrollTop(this$1, charCoords(this$1, pos, "div").top - headPos.top); }
        return pos
      }, sel_move);
      if (goals.length) { for (var i = 0; i < doc.sel.ranges.length; i++)
        { doc.sel.ranges[i].goalColumn = goals[i]; } }
    }),

    // Find the word at the given position (as returned by coordsChar).
    findWordAt: function(pos) {
      var doc = this.doc, line = getLine(doc, pos.line).text;
      var start = pos.ch, end = pos.ch;
      if (line) {
        var helper = this.getHelper(pos, "wordChars");
        if ((pos.sticky == "before" || end == line.length) && start) { --start; } else { ++end; }
        var startChar = line.charAt(start);
        var check = isWordChar(startChar, helper)
          ? function (ch) { return isWordChar(ch, helper); }
          : /\s/.test(startChar) ? function (ch) { return /\s/.test(ch); }
          : function (ch) { return (!/\s/.test(ch) && !isWordChar(ch)); };
        while (start > 0 && check(line.charAt(start - 1))) { --start; }
        while (end < line.length && check(line.charAt(end))) { ++end; }
      }
      return new Range(Pos(pos.line, start), Pos(pos.line, end))
    },

    toggleOverwrite: function(value) {
      if (value != null && value == this.state.overwrite) { return }
      if (this.state.overwrite = !this.state.overwrite)
        { addClass(this.display.cursorDiv, "CodeMirror-overwrite"); }
      else
        { rmClass(this.display.cursorDiv, "CodeMirror-overwrite"); }

      signal(this, "overwriteToggle", this, this.state.overwrite);
    },
    hasFocus: function() { return this.display.input.getField() == activeElt() },
    isReadOnly: function() { return !!(this.options.readOnly || this.doc.cantEdit) },

    scrollTo: methodOp(function (x, y) { scrollToCoords(this, x, y); }),
    getScrollInfo: function() {
      var scroller = this.display.scroller;
      return {left: scroller.scrollLeft, top: scroller.scrollTop,
              height: scroller.scrollHeight - scrollGap(this) - this.display.barHeight,
              width: scroller.scrollWidth - scrollGap(this) - this.display.barWidth,
              clientHeight: displayHeight(this), clientWidth: displayWidth(this)}
    },

    scrollIntoView: methodOp(function(range$$1, margin) {
      if (range$$1 == null) {
        range$$1 = {from: this.doc.sel.primary().head, to: null};
        if (margin == null) { margin = this.options.cursorScrollMargin; }
      } else if (typeof range$$1 == "number") {
        range$$1 = {from: Pos(range$$1, 0), to: null};
      } else if (range$$1.from == null) {
        range$$1 = {from: range$$1, to: null};
      }
      if (!range$$1.to) { range$$1.to = range$$1.from; }
      range$$1.margin = margin || 0;

      if (range$$1.from.line != null) {
        scrollToRange(this, range$$1);
      } else {
        scrollToCoordsRange(this, range$$1.from, range$$1.to, range$$1.margin);
      }
    }),

    setSize: methodOp(function(width, height) {
      var this$1 = this;

      var interpret = function (val) { return typeof val == "number" || /^\d+$/.test(String(val)) ? val + "px" : val; };
      if (width != null) { this.display.wrapper.style.width = interpret(width); }
      if (height != null) { this.display.wrapper.style.height = interpret(height); }
      if (this.options.lineWrapping) { clearLineMeasurementCache(this); }
      var lineNo$$1 = this.display.viewFrom;
      this.doc.iter(lineNo$$1, this.display.viewTo, function (line) {
        if (line.widgets) { for (var i = 0; i < line.widgets.length; i++)
          { if (line.widgets[i].noHScroll) { regLineChange(this$1, lineNo$$1, "widget"); break } } }
        ++lineNo$$1;
      });
      this.curOp.forceUpdate = true;
      signal(this, "refresh", this);
    }),

    operation: function(f){return runInOp(this, f)},

    refresh: methodOp(function() {
      var oldHeight = this.display.cachedTextHeight;
      regChange(this);
      this.curOp.forceUpdate = true;
      clearCaches(this);
      scrollToCoords(this, this.doc.scrollLeft, this.doc.scrollTop);
      updateGutterSpace(this);
      if (oldHeight == null || Math.abs(oldHeight - textHeight(this.display)) > .5)
        { estimateLineHeights(this); }
      signal(this, "refresh", this);
    }),

    swapDoc: methodOp(function(doc) {
      var old = this.doc;
      old.cm = null;
      attachDoc(this, doc);
      clearCaches(this);
      this.display.input.reset();
      scrollToCoords(this, doc.scrollLeft, doc.scrollTop);
      this.curOp.forceScroll = true;
      signalLater(this, "swapDoc", this, old);
      return old
    }),

    getInputField: function(){return this.display.input.getField()},
    getWrapperElement: function(){return this.display.wrapper},
    getScrollerElement: function(){return this.display.scroller},
    getGutterElement: function(){return this.display.gutters}
  };
  eventMixin(CodeMirror);

  CodeMirror.registerHelper = function(type, name, value) {
    if (!helpers.hasOwnProperty(type)) { helpers[type] = CodeMirror[type] = {_global: []}; }
    helpers[type][name] = value;
  };
  CodeMirror.registerGlobalHelper = function(type, name, predicate, value) {
    CodeMirror.registerHelper(type, name, value);
    helpers[type]._global.push({pred: predicate, val: value});
  };
};

// Used for horizontal relative motion. Dir is -1 or 1 (left or
// right), unit can be "char", "column" (like char, but doesn't
// cross line boundaries), "word" (across next word), or "group" (to
// the start of next group of word or non-word-non-whitespace
// chars). The visually param controls whether, in right-to-left
// text, direction 1 means to move towards the next index in the
// string, or towards the character to the right of the current
// position. The resulting position will have a hitSide=true
// property if it reached the end of the document.
function findPosH(doc, pos, dir, unit, visually) {
  var oldPos = pos;
  var origDir = dir;
  var lineObj = getLine(doc, pos.line);
  function findNextLine() {
    var l = pos.line + dir;
    if (l < doc.first || l >= doc.first + doc.size) { return false }
    pos = new Pos(l, pos.ch, pos.sticky);
    return lineObj = getLine(doc, l)
  }
  function moveOnce(boundToLine) {
    var next;
    if (visually) {
      next = moveVisually(doc.cm, lineObj, pos, dir);
    } else {
      next = moveLogically(lineObj, pos, dir);
    }
    if (next == null) {
      if (!boundToLine && findNextLine())
        { pos = endOfLine(visually, doc.cm, lineObj, pos.line, dir); }
      else
        { return false }
    } else {
      pos = next;
    }
    return true
  }

  if (unit == "char") {
    moveOnce();
  } else if (unit == "column") {
    moveOnce(true);
  } else if (unit == "word" || unit == "group") {
    var sawType = null, group = unit == "group";
    var helper = doc.cm && doc.cm.getHelper(pos, "wordChars");
    for (var first = true;; first = false) {
      if (dir < 0 && !moveOnce(!first)) { break }
      var cur = lineObj.text.charAt(pos.ch) || "\n";
      var type = isWordChar(cur, helper) ? "w"
        : group && cur == "\n" ? "n"
        : !group || /\s/.test(cur) ? null
        : "p";
      if (group && !first && !type) { type = "s"; }
      if (sawType && sawType != type) {
        if (dir < 0) {dir = 1; moveOnce(); pos.sticky = "after";}
        break
      }

      if (type) { sawType = type; }
      if (dir > 0 && !moveOnce(!first)) { break }
    }
  }
  var result = skipAtomic(doc, pos, oldPos, origDir, true);
  if (equalCursorPos(oldPos, result)) { result.hitSide = true; }
  return result
}

// For relative vertical movement. Dir may be -1 or 1. Unit can be
// "page" or "line". The resulting position will have a hitSide=true
// property if it reached the end of the document.
function findPosV(cm, pos, dir, unit) {
  var doc = cm.doc, x = pos.left, y;
  if (unit == "page") {
    var pageSize = Math.min(cm.display.wrapper.clientHeight, window.innerHeight || document.documentElement.clientHeight);
    var moveAmount = Math.max(pageSize - .5 * textHeight(cm.display), 3);
    y = (dir > 0 ? pos.bottom : pos.top) + dir * moveAmount;

  } else if (unit == "line") {
    y = dir > 0 ? pos.bottom + 3 : pos.top - 3;
  }
  var target;
  for (;;) {
    target = coordsChar(cm, x, y);
    if (!target.outside) { break }
    if (dir < 0 ? y <= 0 : y >= doc.height) { target.hitSide = true; break }
    y += dir * 5;
  }
  return target
}

// CONTENTEDITABLE INPUT STYLE

var ContentEditableInput = function(cm) {
  this.cm = cm;
  this.lastAnchorNode = this.lastAnchorOffset = this.lastFocusNode = this.lastFocusOffset = null;
  this.polling = new Delayed();
  this.composing = null;
  this.gracePeriod = false;
  this.readDOMTimeout = null;
};

ContentEditableInput.prototype.init = function (display) {
    var this$1 = this;

  var input = this, cm = input.cm;
  var div = input.div = display.lineDiv;
  disableBrowserMagic(div, cm.options.spellcheck);

  on(div, "paste", function (e) {
    if (signalDOMEvent(cm, e) || handlePaste(e, cm)) { return }
    // IE doesn't fire input events, so we schedule a read for the pasted content in this way
    if (ie_version <= 11) { setTimeout(operation(cm, function () { return this$1.updateFromDOM(); }), 20); }
  });

  on(div, "compositionstart", function (e) {
    this$1.composing = {data: e.data, done: false};
  });
  on(div, "compositionupdate", function (e) {
    if (!this$1.composing) { this$1.composing = {data: e.data, done: false}; }
  });
  on(div, "compositionend", function (e) {
    if (this$1.composing) {
      if (e.data != this$1.composing.data) { this$1.readFromDOMSoon(); }
      this$1.composing.done = true;
    }
  });

  on(div, "touchstart", function () { return input.forceCompositionEnd(); });

  on(div, "input", function () {
    if (!this$1.composing) { this$1.readFromDOMSoon(); }
  });

  function onCopyCut(e) {
    if (signalDOMEvent(cm, e)) { return }
    if (cm.somethingSelected()) {
      setLastCopied({lineWise: false, text: cm.getSelections()});
      if (e.type == "cut") { cm.replaceSelection("", null, "cut"); }
    } else if (!cm.options.lineWiseCopyCut) {
      return
    } else {
      var ranges = copyableRanges(cm);
      setLastCopied({lineWise: true, text: ranges.text});
      if (e.type == "cut") {
        cm.operation(function () {
          cm.setSelections(ranges.ranges, 0, sel_dontScroll);
          cm.replaceSelection("", null, "cut");
        });
      }
    }
    if (e.clipboardData) {
      e.clipboardData.clearData();
      var content = lastCopied.text.join("\n");
      // iOS exposes the clipboard API, but seems to discard content inserted into it
      e.clipboardData.setData("Text", content);
      if (e.clipboardData.getData("Text") == content) {
        e.preventDefault();
        return
      }
    }
    // Old-fashioned briefly-focus-a-textarea hack
    var kludge = hiddenTextarea(), te = kludge.firstChild;
    cm.display.lineSpace.insertBefore(kludge, cm.display.lineSpace.firstChild);
    te.value = lastCopied.text.join("\n");
    var hadFocus = document.activeElement;
    selectInput(te);
    setTimeout(function () {
      cm.display.lineSpace.removeChild(kludge);
      hadFocus.focus();
      if (hadFocus == div) { input.showPrimarySelection(); }
    }, 50);
  }
  on(div, "copy", onCopyCut);
  on(div, "cut", onCopyCut);
};

ContentEditableInput.prototype.prepareSelection = function () {
  var result = prepareSelection(this.cm, false);
  result.focus = this.cm.state.focused;
  return result
};

ContentEditableInput.prototype.showSelection = function (info, takeFocus) {
  if (!info || !this.cm.display.view.length) { return }
  if (info.focus || takeFocus) { this.showPrimarySelection(); }
  this.showMultipleSelections(info);
};

ContentEditableInput.prototype.showPrimarySelection = function () {
  var sel = window.getSelection(), cm = this.cm, prim = cm.doc.sel.primary();
  var from = prim.from(), to = prim.to();

  if (cm.display.viewTo == cm.display.viewFrom || from.line >= cm.display.viewTo || to.line < cm.display.viewFrom) {
    sel.removeAllRanges();
    return
  }

  var curAnchor = domToPos(cm, sel.anchorNode, sel.anchorOffset);
  var curFocus = domToPos(cm, sel.focusNode, sel.focusOffset);
  if (curAnchor && !curAnchor.bad && curFocus && !curFocus.bad &&
      cmp(minPos(curAnchor, curFocus), from) == 0 &&
      cmp(maxPos(curAnchor, curFocus), to) == 0)
    { return }

  var view = cm.display.view;
  var start = (from.line >= cm.display.viewFrom && posToDOM(cm, from)) ||
      {node: view[0].measure.map[2], offset: 0};
  var end = to.line < cm.display.viewTo && posToDOM(cm, to);
  if (!end) {
    var measure = view[view.length - 1].measure;
    var map$$1 = measure.maps ? measure.maps[measure.maps.length - 1] : measure.map;
    end = {node: map$$1[map$$1.length - 1], offset: map$$1[map$$1.length - 2] - map$$1[map$$1.length - 3]};
  }

  if (!start || !end) {
    sel.removeAllRanges();
    return
  }

  var old = sel.rangeCount && sel.getRangeAt(0), rng;
  try { rng = range(start.node, start.offset, end.offset, end.node); }
  catch(e) {} // Our model of the DOM might be outdated, in which case the range we try to set can be impossible
  if (rng) {
    if (!gecko && cm.state.focused) {
      sel.collapse(start.node, start.offset);
      if (!rng.collapsed) {
        sel.removeAllRanges();
        sel.addRange(rng);
      }
    } else {
      sel.removeAllRanges();
      sel.addRange(rng);
    }
    if (old && sel.anchorNode == null) { sel.addRange(old); }
    else if (gecko) { this.startGracePeriod(); }
  }
  this.rememberSelection();
};

ContentEditableInput.prototype.startGracePeriod = function () {
    var this$1 = this;

  clearTimeout(this.gracePeriod);
  this.gracePeriod = setTimeout(function () {
    this$1.gracePeriod = false;
    if (this$1.selectionChanged())
      { this$1.cm.operation(function () { return this$1.cm.curOp.selectionChanged = true; }); }
  }, 20);
};

ContentEditableInput.prototype.showMultipleSelections = function (info) {
  removeChildrenAndAdd(this.cm.display.cursorDiv, info.cursors);
  removeChildrenAndAdd(this.cm.display.selectionDiv, info.selection);
};

ContentEditableInput.prototype.rememberSelection = function () {
  var sel = window.getSelection();
  this.lastAnchorNode = sel.anchorNode; this.lastAnchorOffset = sel.anchorOffset;
  this.lastFocusNode = sel.focusNode; this.lastFocusOffset = sel.focusOffset;
};

ContentEditableInput.prototype.selectionInEditor = function () {
  var sel = window.getSelection();
  if (!sel.rangeCount) { return false }
  var node = sel.getRangeAt(0).commonAncestorContainer;
  return contains(this.div, node)
};

ContentEditableInput.prototype.focus = function () {
  if (this.cm.options.readOnly != "nocursor") {
    if (!this.selectionInEditor())
      { this.showSelection(this.prepareSelection(), true); }
    this.div.focus();
  }
};
ContentEditableInput.prototype.blur = function () { this.div.blur(); };
ContentEditableInput.prototype.getField = function () { return this.div };

ContentEditableInput.prototype.supportsTouch = function () { return true };

ContentEditableInput.prototype.receivedFocus = function () {
  var input = this;
  if (this.selectionInEditor())
    { this.pollSelection(); }
  else
    { runInOp(this.cm, function () { return input.cm.curOp.selectionChanged = true; }); }

  function poll() {
    if (input.cm.state.focused) {
      input.pollSelection();
      input.polling.set(input.cm.options.pollInterval, poll);
    }
  }
  this.polling.set(this.cm.options.pollInterval, poll);
};

ContentEditableInput.prototype.selectionChanged = function () {
  var sel = window.getSelection();
  return sel.anchorNode != this.lastAnchorNode || sel.anchorOffset != this.lastAnchorOffset ||
    sel.focusNode != this.lastFocusNode || sel.focusOffset != this.lastFocusOffset
};

ContentEditableInput.prototype.pollSelection = function () {
  if (this.readDOMTimeout != null || this.gracePeriod || !this.selectionChanged()) { return }
  var sel = window.getSelection(), cm = this.cm;
  // On Android Chrome (version 56, at least), backspacing into an
  // uneditable block element will put the cursor in that element,
  // and then, because it's not editable, hide the virtual keyboard.
  // Because Android doesn't allow us to actually detect backspace
  // presses in a sane way, this code checks for when that happens
  // and simulates a backspace press in this case.
  if (android && chrome && this.cm.options.gutters.length && isInGutter(sel.anchorNode)) {
    this.cm.triggerOnKeyDown({type: "keydown", keyCode: 8, preventDefault: Math.abs});
    this.blur();
    this.focus();
    return
  }
  if (this.composing) { return }
  this.rememberSelection();
  var anchor = domToPos(cm, sel.anchorNode, sel.anchorOffset);
  var head = domToPos(cm, sel.focusNode, sel.focusOffset);
  if (anchor && head) { runInOp(cm, function () {
    setSelection(cm.doc, simpleSelection(anchor, head), sel_dontScroll);
    if (anchor.bad || head.bad) { cm.curOp.selectionChanged = true; }
  }); }
};

ContentEditableInput.prototype.pollContent = function () {
  if (this.readDOMTimeout != null) {
    clearTimeout(this.readDOMTimeout);
    this.readDOMTimeout = null;
  }

  var cm = this.cm, display = cm.display, sel = cm.doc.sel.primary();
  var from = sel.from(), to = sel.to();
  if (from.ch == 0 && from.line > cm.firstLine())
    { from = Pos(from.line - 1, getLine(cm.doc, from.line - 1).length); }
  if (to.ch == getLine(cm.doc, to.line).text.length && to.line < cm.lastLine())
    { to = Pos(to.line + 1, 0); }
  if (from.line < display.viewFrom || to.line > display.viewTo - 1) { return false }

  var fromIndex, fromLine, fromNode;
  if (from.line == display.viewFrom || (fromIndex = findViewIndex(cm, from.line)) == 0) {
    fromLine = lineNo(display.view[0].line);
    fromNode = display.view[0].node;
  } else {
    fromLine = lineNo(display.view[fromIndex].line);
    fromNode = display.view[fromIndex - 1].node.nextSibling;
  }
  var toIndex = findViewIndex(cm, to.line);
  var toLine, toNode;
  if (toIndex == display.view.length - 1) {
    toLine = display.viewTo - 1;
    toNode = display.lineDiv.lastChild;
  } else {
    toLine = lineNo(display.view[toIndex + 1].line) - 1;
    toNode = display.view[toIndex + 1].node.previousSibling;
  }

  if (!fromNode) { return false }
  var newText = cm.doc.splitLines(domTextBetween(cm, fromNode, toNode, fromLine, toLine));
  var oldText = getBetween(cm.doc, Pos(fromLine, 0), Pos(toLine, getLine(cm.doc, toLine).text.length));
  while (newText.length > 1 && oldText.length > 1) {
    if (lst(newText) == lst(oldText)) { newText.pop(); oldText.pop(); toLine--; }
    else if (newText[0] == oldText[0]) { newText.shift(); oldText.shift(); fromLine++; }
    else { break }
  }

  var cutFront = 0, cutEnd = 0;
  var newTop = newText[0], oldTop = oldText[0], maxCutFront = Math.min(newTop.length, oldTop.length);
  while (cutFront < maxCutFront && newTop.charCodeAt(cutFront) == oldTop.charCodeAt(cutFront))
    { ++cutFront; }
  var newBot = lst(newText), oldBot = lst(oldText);
  var maxCutEnd = Math.min(newBot.length - (newText.length == 1 ? cutFront : 0),
                           oldBot.length - (oldText.length == 1 ? cutFront : 0));
  while (cutEnd < maxCutEnd &&
         newBot.charCodeAt(newBot.length - cutEnd - 1) == oldBot.charCodeAt(oldBot.length - cutEnd - 1))
    { ++cutEnd; }
  // Try to move start of change to start of selection if ambiguous
  if (newText.length == 1 && oldText.length == 1 && fromLine == from.line) {
    while (cutFront && cutFront > from.ch &&
           newBot.charCodeAt(newBot.length - cutEnd - 1) == oldBot.charCodeAt(oldBot.length - cutEnd - 1)) {
      cutFront--;
      cutEnd++;
    }
  }

  newText[newText.length - 1] = newBot.slice(0, newBot.length - cutEnd).replace(/^\u200b+/, "");
  newText[0] = newText[0].slice(cutFront).replace(/\u200b+$/, "");

  var chFrom = Pos(fromLine, cutFront);
  var chTo = Pos(toLine, oldText.length ? lst(oldText).length - cutEnd : 0);
  if (newText.length > 1 || newText[0] || cmp(chFrom, chTo)) {
    replaceRange(cm.doc, newText, chFrom, chTo, "+input");
    return true
  }
};

ContentEditableInput.prototype.ensurePolled = function () {
  this.forceCompositionEnd();
};
ContentEditableInput.prototype.reset = function () {
  this.forceCompositionEnd();
};
ContentEditableInput.prototype.forceCompositionEnd = function () {
  if (!this.composing) { return }
  clearTimeout(this.readDOMTimeout);
  this.composing = null;
  this.updateFromDOM();
  this.div.blur();
  this.div.focus();
};
ContentEditableInput.prototype.readFromDOMSoon = function () {
    var this$1 = this;

  if (this.readDOMTimeout != null) { return }
  this.readDOMTimeout = setTimeout(function () {
    this$1.readDOMTimeout = null;
    if (this$1.composing) {
      if (this$1.composing.done) { this$1.composing = null; }
      else { return }
    }
    this$1.updateFromDOM();
  }, 80);
};

ContentEditableInput.prototype.updateFromDOM = function () {
    var this$1 = this;

  if (this.cm.isReadOnly() || !this.pollContent())
    { runInOp(this.cm, function () { return regChange(this$1.cm); }); }
};

ContentEditableInput.prototype.setUneditable = function (node) {
  node.contentEditable = "false";
};

ContentEditableInput.prototype.onKeyPress = function (e) {
  if (e.charCode == 0) { return }
  e.preventDefault();
  if (!this.cm.isReadOnly())
    { operation(this.cm, applyTextInput)(this.cm, String.fromCharCode(e.charCode == null ? e.keyCode : e.charCode), 0); }
};

ContentEditableInput.prototype.readOnlyChanged = function (val) {
  this.div.contentEditable = String(val != "nocursor");
};

ContentEditableInput.prototype.onContextMenu = function () {};
ContentEditableInput.prototype.resetPosition = function () {};

ContentEditableInput.prototype.needsContentAttribute = true;

function posToDOM(cm, pos) {
  var view = findViewForLine(cm, pos.line);
  if (!view || view.hidden) { return null }
  var line = getLine(cm.doc, pos.line);
  var info = mapFromLineView(view, line, pos.line);

  var order = getOrder(line, cm.doc.direction), side = "left";
  if (order) {
    var partPos = getBidiPartAt(order, pos.ch);
    side = partPos % 2 ? "right" : "left";
  }
  var result = nodeAndOffsetInLineMap(info.map, pos.ch, side);
  result.offset = result.collapse == "right" ? result.end : result.start;
  return result
}

function isInGutter(node) {
  for (var scan = node; scan; scan = scan.parentNode)
    { if (/CodeMirror-gutter-wrapper/.test(scan.className)) { return true } }
  return false
}

function badPos(pos, bad) { if (bad) { pos.bad = true; } return pos }

function domTextBetween(cm, from, to, fromLine, toLine) {
  var text = "", closing = false, lineSep = cm.doc.lineSeparator();
  function recognizeMarker(id) { return function (marker) { return marker.id == id; } }
  function close() {
    if (closing) {
      text += lineSep;
      closing = false;
    }
  }
  function addText(str) {
    if (str) {
      close();
      text += str;
    }
  }
  function walk(node) {
    if (node.nodeType == 1) {
      var cmText = node.getAttribute("cm-text");
      if (cmText != null) {
        addText(cmText || node.textContent.replace(/\u200b/g, ""));
        return
      }
      var markerID = node.getAttribute("cm-marker"), range$$1;
      if (markerID) {
        var found = cm.findMarks(Pos(fromLine, 0), Pos(toLine + 1, 0), recognizeMarker(+markerID));
        if (found.length && (range$$1 = found[0].find()))
          { addText(getBetween(cm.doc, range$$1.from, range$$1.to).join(lineSep)); }
        return
      }
      if (node.getAttribute("contenteditable") == "false") { return }
      var isBlock = /^(pre|div|p)$/i.test(node.nodeName);
      if (isBlock) { close(); }
      for (var i = 0; i < node.childNodes.length; i++)
        { walk(node.childNodes[i]); }
      if (isBlock) { closing = true; }
    } else if (node.nodeType == 3) {
      addText(node.nodeValue);
    }
  }
  for (;;) {
    walk(from);
    if (from == to) { break }
    from = from.nextSibling;
  }
  return text
}

function domToPos(cm, node, offset) {
  var lineNode;
  if (node == cm.display.lineDiv) {
    lineNode = cm.display.lineDiv.childNodes[offset];
    if (!lineNode) { return badPos(cm.clipPos(Pos(cm.display.viewTo - 1)), true) }
    node = null; offset = 0;
  } else {
    for (lineNode = node;; lineNode = lineNode.parentNode) {
      if (!lineNode || lineNode == cm.display.lineDiv) { return null }
      if (lineNode.parentNode && lineNode.parentNode == cm.display.lineDiv) { break }
    }
  }
  for (var i = 0; i < cm.display.view.length; i++) {
    var lineView = cm.display.view[i];
    if (lineView.node == lineNode)
      { return locateNodeInLineView(lineView, node, offset) }
  }
}

function locateNodeInLineView(lineView, node, offset) {
  var wrapper = lineView.text.firstChild, bad = false;
  if (!node || !contains(wrapper, node)) { return badPos(Pos(lineNo(lineView.line), 0), true) }
  if (node == wrapper) {
    bad = true;
    node = wrapper.childNodes[offset];
    offset = 0;
    if (!node) {
      var line = lineView.rest ? lst(lineView.rest) : lineView.line;
      return badPos(Pos(lineNo(line), line.text.length), bad)
    }
  }

  var textNode = node.nodeType == 3 ? node : null, topNode = node;
  if (!textNode && node.childNodes.length == 1 && node.firstChild.nodeType == 3) {
    textNode = node.firstChild;
    if (offset) { offset = textNode.nodeValue.length; }
  }
  while (topNode.parentNode != wrapper) { topNode = topNode.parentNode; }
  var measure = lineView.measure, maps = measure.maps;

  function find(textNode, topNode, offset) {
    for (var i = -1; i < (maps ? maps.length : 0); i++) {
      var map$$1 = i < 0 ? measure.map : maps[i];
      for (var j = 0; j < map$$1.length; j += 3) {
        var curNode = map$$1[j + 2];
        if (curNode == textNode || curNode == topNode) {
          var line = lineNo(i < 0 ? lineView.line : lineView.rest[i]);
          var ch = map$$1[j] + offset;
          if (offset < 0 || curNode != textNode) { ch = map$$1[j + (offset ? 1 : 0)]; }
          return Pos(line, ch)
        }
      }
    }
  }
  var found = find(textNode, topNode, offset);
  if (found) { return badPos(found, bad) }

  // FIXME this is all really shaky. might handle the few cases it needs to handle, but likely to cause problems
  for (var after = topNode.nextSibling, dist = textNode ? textNode.nodeValue.length - offset : 0; after; after = after.nextSibling) {
    found = find(after, after.firstChild, 0);
    if (found)
      { return badPos(Pos(found.line, found.ch - dist), bad) }
    else
      { dist += after.textContent.length; }
  }
  for (var before = topNode.previousSibling, dist$1 = offset; before; before = before.previousSibling) {
    found = find(before, before.firstChild, -1);
    if (found)
      { return badPos(Pos(found.line, found.ch + dist$1), bad) }
    else
      { dist$1 += before.textContent.length; }
  }
}

// TEXTAREA INPUT STYLE

var TextareaInput = function(cm) {
  this.cm = cm;
  // See input.poll and input.reset
  this.prevInput = "";

  // Flag that indicates whether we expect input to appear real soon
  // now (after some event like 'keypress' or 'input') and are
  // polling intensively.
  this.pollingFast = false;
  // Self-resetting timeout for the poller
  this.polling = new Delayed();
  // Tracks when input.reset has punted to just putting a short
  // string into the textarea instead of the full selection.
  this.inaccurateSelection = false;
  // Used to work around IE issue with selection being forgotten when focus moves away from textarea
  this.hasSelection = false;
  this.composing = null;
};

TextareaInput.prototype.init = function (display) {
    var this$1 = this;

  var input = this, cm = this.cm;

  // Wraps and hides input textarea
  var div = this.wrapper = hiddenTextarea();
  // The semihidden textarea that is focused when the editor is
  // focused, and receives input.
  var te = this.textarea = div.firstChild;
  display.wrapper.insertBefore(div, display.wrapper.firstChild);

  // Needed to hide big blue blinking cursor on Mobile Safari (doesn't seem to work in iOS 8 anymore)
  if (ios) { te.style.width = "0px"; }

  on(te, "input", function () {
    if (ie && ie_version >= 9 && this$1.hasSelection) { this$1.hasSelection = null; }
    input.poll();
  });

  on(te, "paste", function (e) {
    if (signalDOMEvent(cm, e) || handlePaste(e, cm)) { return }

    cm.state.pasteIncoming = true;
    input.fastPoll();
  });

  function prepareCopyCut(e) {
    if (signalDOMEvent(cm, e)) { return }
    if (cm.somethingSelected()) {
      setLastCopied({lineWise: false, text: cm.getSelections()});
      if (input.inaccurateSelection) {
        input.prevInput = "";
        input.inaccurateSelection = false;
        te.value = lastCopied.text.join("\n");
        selectInput(te);
      }
    } else if (!cm.options.lineWiseCopyCut) {
      return
    } else {
      var ranges = copyableRanges(cm);
      setLastCopied({lineWise: true, text: ranges.text});
      if (e.type == "cut") {
        cm.setSelections(ranges.ranges, null, sel_dontScroll);
      } else {
        input.prevInput = "";
        te.value = ranges.text.join("\n");
        selectInput(te);
      }
    }
    if (e.type == "cut") { cm.state.cutIncoming = true; }
  }
  on(te, "cut", prepareCopyCut);
  on(te, "copy", prepareCopyCut);

  on(display.scroller, "paste", function (e) {
    if (eventInWidget(display, e) || signalDOMEvent(cm, e)) { return }
    cm.state.pasteIncoming = true;
    input.focus();
  });

  // Prevent normal selection in the editor (we handle our own)
  on(display.lineSpace, "selectstart", function (e) {
    if (!eventInWidget(display, e)) { e_preventDefault(e); }
  });

  on(te, "compositionstart", function () {
    var start = cm.getCursor("from");
    if (input.composing) { input.composing.range.clear(); }
    input.composing = {
      start: start,
      range: cm.markText(start, cm.getCursor("to"), {className: "CodeMirror-composing"})
    };
  });
  on(te, "compositionend", function () {
    if (input.composing) {
      input.poll();
      input.composing.range.clear();
      input.composing = null;
    }
  });
};

TextareaInput.prototype.prepareSelection = function () {
  // Redraw the selection and/or cursor
  var cm = this.cm, display = cm.display, doc = cm.doc;
  var result = prepareSelection(cm);

  // Move the hidden textarea near the cursor to prevent scrolling artifacts
  if (cm.options.moveInputWithCursor) {
    var headPos = cursorCoords(cm, doc.sel.primary().head, "div");
    var wrapOff = display.wrapper.getBoundingClientRect(), lineOff = display.lineDiv.getBoundingClientRect();
    result.teTop = Math.max(0, Math.min(display.wrapper.clientHeight - 10,
                                        headPos.top + lineOff.top - wrapOff.top));
    result.teLeft = Math.max(0, Math.min(display.wrapper.clientWidth - 10,
                                         headPos.left + lineOff.left - wrapOff.left));
  }

  return result
};

TextareaInput.prototype.showSelection = function (drawn) {
  var cm = this.cm, display = cm.display;
  removeChildrenAndAdd(display.cursorDiv, drawn.cursors);
  removeChildrenAndAdd(display.selectionDiv, drawn.selection);
  if (drawn.teTop != null) {
    this.wrapper.style.top = drawn.teTop + "px";
    this.wrapper.style.left = drawn.teLeft + "px";
  }
};

// Reset the input to correspond to the selection (or to be empty,
// when not typing and nothing is selected)
TextareaInput.prototype.reset = function (typing) {
  if (this.contextMenuPending || this.composing) { return }
  var minimal, selected, cm = this.cm, doc = cm.doc;
  if (cm.somethingSelected()) {
    this.prevInput = "";
    var range$$1 = doc.sel.primary();
    minimal = hasCopyEvent &&
      (range$$1.to().line - range$$1.from().line > 100 || (selected = cm.getSelection()).length > 1000);
    var content = minimal ? "-" : selected || cm.getSelection();
    this.textarea.value = content;
    if (cm.state.focused) { selectInput(this.textarea); }
    if (ie && ie_version >= 9) { this.hasSelection = content; }
  } else if (!typing) {
    this.prevInput = this.textarea.value = "";
    if (ie && ie_version >= 9) { this.hasSelection = null; }
  }
  this.inaccurateSelection = minimal;
};

TextareaInput.prototype.getField = function () { return this.textarea };

TextareaInput.prototype.supportsTouch = function () { return false };

TextareaInput.prototype.focus = function () {
  if (this.cm.options.readOnly != "nocursor" && (!mobile || activeElt() != this.textarea)) {
    try { this.textarea.focus(); }
    catch (e) {} // IE8 will throw if the textarea is display: none or not in DOM
  }
};

TextareaInput.prototype.blur = function () { this.textarea.blur(); };

TextareaInput.prototype.resetPosition = function () {
  this.wrapper.style.top = this.wrapper.style.left = 0;
};

TextareaInput.prototype.receivedFocus = function () { this.slowPoll(); };

// Poll for input changes, using the normal rate of polling. This
// runs as long as the editor is focused.
TextareaInput.prototype.slowPoll = function () {
    var this$1 = this;

  if (this.pollingFast) { return }
  this.polling.set(this.cm.options.pollInterval, function () {
    this$1.poll();
    if (this$1.cm.state.focused) { this$1.slowPoll(); }
  });
};

// When an event has just come in that is likely to add or change
// something in the input textarea, we poll faster, to ensure that
// the change appears on the screen quickly.
TextareaInput.prototype.fastPoll = function () {
  var missed = false, input = this;
  input.pollingFast = true;
  function p() {
    var changed = input.poll();
    if (!changed && !missed) {missed = true; input.polling.set(60, p);}
    else {input.pollingFast = false; input.slowPoll();}
  }
  input.polling.set(20, p);
};

// Read input from the textarea, and update the document to match.
// When something is selected, it is present in the textarea, and
// selected (unless it is huge, in which case a placeholder is
// used). When nothing is selected, the cursor sits after previously
// seen text (can be empty), which is stored in prevInput (we must
// not reset the textarea when typing, because that breaks IME).
TextareaInput.prototype.poll = function () {
    var this$1 = this;

  var cm = this.cm, input = this.textarea, prevInput = this.prevInput;
  // Since this is called a *lot*, try to bail out as cheaply as
  // possible when it is clear that nothing happened. hasSelection
  // will be the case when there is a lot of text in the textarea,
  // in which case reading its value would be expensive.
  if (this.contextMenuPending || !cm.state.focused ||
      (hasSelection(input) && !prevInput && !this.composing) ||
      cm.isReadOnly() || cm.options.disableInput || cm.state.keySeq)
    { return false }

  var text = input.value;
  // If nothing changed, bail.
  if (text == prevInput && !cm.somethingSelected()) { return false }
  // Work around nonsensical selection resetting in IE9/10, and
  // inexplicable appearance of private area unicode characters on
  // some key combos in Mac (#2689).
  if (ie && ie_version >= 9 && this.hasSelection === text ||
      mac && /[\uf700-\uf7ff]/.test(text)) {
    cm.display.input.reset();
    return false
  }

  if (cm.doc.sel == cm.display.selForContextMenu) {
    var first = text.charCodeAt(0);
    if (first == 0x200b && !prevInput) { prevInput = "\u200b"; }
    if (first == 0x21da) { this.reset(); return this.cm.execCommand("undo") }
  }
  // Find the part of the input that is actually new
  var same = 0, l = Math.min(prevInput.length, text.length);
  while (same < l && prevInput.charCodeAt(same) == text.charCodeAt(same)) { ++same; }

  runInOp(cm, function () {
    applyTextInput(cm, text.slice(same), prevInput.length - same,
                   null, this$1.composing ? "*compose" : null);

    // Don't leave long text in the textarea, since it makes further polling slow
    if (text.length > 1000 || text.indexOf("\n") > -1) { input.value = this$1.prevInput = ""; }
    else { this$1.prevInput = text; }

    if (this$1.composing) {
      this$1.composing.range.clear();
      this$1.composing.range = cm.markText(this$1.composing.start, cm.getCursor("to"),
                                         {className: "CodeMirror-composing"});
    }
  });
  return true
};

TextareaInput.prototype.ensurePolled = function () {
  if (this.pollingFast && this.poll()) { this.pollingFast = false; }
};

TextareaInput.prototype.onKeyPress = function () {
  if (ie && ie_version >= 9) { this.hasSelection = null; }
  this.fastPoll();
};

TextareaInput.prototype.onContextMenu = function (e) {
  var input = this, cm = input.cm, display = cm.display, te = input.textarea;
  var pos = posFromMouse(cm, e), scrollPos = display.scroller.scrollTop;
  if (!pos || presto) { return } // Opera is difficult.

  // Reset the current text selection only if the click is done outside of the selection
  // and 'resetSelectionOnContextMenu' option is true.
  var reset = cm.options.resetSelectionOnContextMenu;
  if (reset && cm.doc.sel.contains(pos) == -1)
    { operation(cm, setSelection)(cm.doc, simpleSelection(pos), sel_dontScroll); }

  var oldCSS = te.style.cssText, oldWrapperCSS = input.wrapper.style.cssText;
  input.wrapper.style.cssText = "position: absolute";
  var wrapperBox = input.wrapper.getBoundingClientRect();
  te.style.cssText = "position: absolute; width: 30px; height: 30px;\n      top: " + (e.clientY - wrapperBox.top - 5) + "px; left: " + (e.clientX - wrapperBox.left - 5) + "px;\n      z-index: 1000; background: " + (ie ? "rgba(255, 255, 255, .05)" : "transparent") + ";\n      outline: none; border-width: 0; outline: none; overflow: hidden; opacity: .05; filter: alpha(opacity=5);";
  var oldScrollY;
  if (webkit) { oldScrollY = window.scrollY; } // Work around Chrome issue (#2712)
  display.input.focus();
  if (webkit) { window.scrollTo(null, oldScrollY); }
  display.input.reset();
  // Adds "Select all" to context menu in FF
  if (!cm.somethingSelected()) { te.value = input.prevInput = " "; }
  input.contextMenuPending = true;
  display.selForContextMenu = cm.doc.sel;
  clearTimeout(display.detectingSelectAll);

  // Select-all will be greyed out if there's nothing to select, so
  // this adds a zero-width space so that we can later check whether
  // it got selected.
  function prepareSelectAllHack() {
    if (te.selectionStart != null) {
      var selected = cm.somethingSelected();
      var extval = "\u200b" + (selected ? te.value : "");
      te.value = "\u21da"; // Used to catch context-menu undo
      te.value = extval;
      input.prevInput = selected ? "" : "\u200b";
      te.selectionStart = 1; te.selectionEnd = extval.length;
      // Re-set this, in case some other handler touched the
      // selection in the meantime.
      display.selForContextMenu = cm.doc.sel;
    }
  }
  function rehide() {
    input.contextMenuPending = false;
    input.wrapper.style.cssText = oldWrapperCSS;
    te.style.cssText = oldCSS;
    if (ie && ie_version < 9) { display.scrollbars.setScrollTop(display.scroller.scrollTop = scrollPos); }

    // Try to detect the user choosing select-all
    if (te.selectionStart != null) {
      if (!ie || (ie && ie_version < 9)) { prepareSelectAllHack(); }
      var i = 0, poll = function () {
        if (display.selForContextMenu == cm.doc.sel && te.selectionStart == 0 &&
            te.selectionEnd > 0 && input.prevInput == "\u200b") {
          operation(cm, selectAll)(cm);
        } else if (i++ < 10) {
          display.detectingSelectAll = setTimeout(poll, 500);
        } else {
          display.selForContextMenu = null;
          display.input.reset();
        }
      };
      display.detectingSelectAll = setTimeout(poll, 200);
    }
  }

  if (ie && ie_version >= 9) { prepareSelectAllHack(); }
  if (captureRightClick) {
    e_stop(e);
    var mouseup = function () {
      off(window, "mouseup", mouseup);
      setTimeout(rehide, 20);
    };
    on(window, "mouseup", mouseup);
  } else {
    setTimeout(rehide, 50);
  }
};

TextareaInput.prototype.readOnlyChanged = function (val) {
  if (!val) { this.reset(); }
  this.textarea.disabled = val == "nocursor";
};

TextareaInput.prototype.setUneditable = function () {};

TextareaInput.prototype.needsContentAttribute = false;

function fromTextArea(textarea, options) {
  options = options ? copyObj(options) : {};
  options.value = textarea.value;
  if (!options.tabindex && textarea.tabIndex)
    { options.tabindex = textarea.tabIndex; }
  if (!options.placeholder && textarea.placeholder)
    { options.placeholder = textarea.placeholder; }
  // Set autofocus to true if this textarea is focused, or if it has
  // autofocus and no other element is focused.
  if (options.autofocus == null) {
    var hasFocus = activeElt();
    options.autofocus = hasFocus == textarea ||
      textarea.getAttribute("autofocus") != null && hasFocus == document.body;
  }

  function save() {textarea.value = cm.getValue();}

  var realSubmit;
  if (textarea.form) {
    on(textarea.form, "submit", save);
    // Deplorable hack to make the submit method do the right thing.
    if (!options.leaveSubmitMethodAlone) {
      var form = textarea.form;
      realSubmit = form.submit;
      try {
        var wrappedSubmit = form.submit = function () {
          save();
          form.submit = realSubmit;
          form.submit();
          form.submit = wrappedSubmit;
        };
      } catch(e) {}
    }
  }

  options.finishInit = function (cm) {
    cm.save = save;
    cm.getTextArea = function () { return textarea; };
    cm.toTextArea = function () {
      cm.toTextArea = isNaN; // Prevent this from being ran twice
      save();
      textarea.parentNode.removeChild(cm.getWrapperElement());
      textarea.style.display = "";
      if (textarea.form) {
        off(textarea.form, "submit", save);
        if (typeof textarea.form.submit == "function")
          { textarea.form.submit = realSubmit; }
      }
    };
  };

  textarea.style.display = "none";
  var cm = CodeMirror$1(function (node) { return textarea.parentNode.insertBefore(node, textarea.nextSibling); },
    options);
  return cm
}

function addLegacyProps(CodeMirror) {
  CodeMirror.off = off;
  CodeMirror.on = on;
  CodeMirror.wheelEventPixels = wheelEventPixels;
  CodeMirror.Doc = Doc;
  CodeMirror.splitLines = splitLinesAuto;
  CodeMirror.countColumn = countColumn;
  CodeMirror.findColumn = findColumn;
  CodeMirror.isWordChar = isWordCharBasic;
  CodeMirror.Pass = Pass;
  CodeMirror.signal = signal;
  CodeMirror.Line = Line;
  CodeMirror.changeEnd = changeEnd;
  CodeMirror.scrollbarModel = scrollbarModel;
  CodeMirror.Pos = Pos;
  CodeMirror.cmpPos = cmp;
  CodeMirror.modes = modes;
  CodeMirror.mimeModes = mimeModes;
  CodeMirror.resolveMode = resolveMode;
  CodeMirror.getMode = getMode;
  CodeMirror.modeExtensions = modeExtensions;
  CodeMirror.extendMode = extendMode;
  CodeMirror.copyState = copyState;
  CodeMirror.startState = startState;
  CodeMirror.innerMode = innerMode;
  CodeMirror.commands = commands;
  CodeMirror.keyMap = keyMap;
  CodeMirror.keyName = keyName;
  CodeMirror.isModifierKey = isModifierKey;
  CodeMirror.lookupKey = lookupKey;
  CodeMirror.normalizeKeyMap = normalizeKeyMap;
  CodeMirror.StringStream = StringStream;
  CodeMirror.SharedTextMarker = SharedTextMarker;
  CodeMirror.TextMarker = TextMarker;
  CodeMirror.LineWidget = LineWidget;
  CodeMirror.e_preventDefault = e_preventDefault;
  CodeMirror.e_stopPropagation = e_stopPropagation;
  CodeMirror.e_stop = e_stop;
  CodeMirror.addClass = addClass;
  CodeMirror.contains = contains;
  CodeMirror.rmClass = rmClass;
  CodeMirror.keyNames = keyNames;
}

// EDITOR CONSTRUCTOR

defineOptions(CodeMirror$1);

addEditorMethods(CodeMirror$1);

// Set up methods on CodeMirror's prototype to redirect to the editor's document.
var dontDelegate = "iter insert remove copy getEditor constructor".split(" ");
for (var prop in Doc.prototype) { if (Doc.prototype.hasOwnProperty(prop) && indexOf(dontDelegate, prop) < 0)
  { CodeMirror$1.prototype[prop] = (function(method) {
    return function() {return method.apply(this.doc, arguments)}
  })(Doc.prototype[prop]); } }

eventMixin(Doc);

// INPUT HANDLING

CodeMirror$1.inputStyles = {"textarea": TextareaInput, "contenteditable": ContentEditableInput};

// MODE DEFINITION AND QUERYING

// Extra arguments are stored as the mode's dependencies, which is
// used by (legacy) mechanisms like loadmode.js to automatically
// load a mode. (Preferred mechanism is the require/define calls.)
CodeMirror$1.defineMode = function(name/*, mode, …*/) {
  if (!CodeMirror$1.defaults.mode && name != "null") { CodeMirror$1.defaults.mode = name; }
  defineMode.apply(this, arguments);
};

CodeMirror$1.defineMIME = defineMIME;

// Minimal default mode.
CodeMirror$1.defineMode("null", function () { return ({token: function (stream) { return stream.skipToEnd(); }}); });
CodeMirror$1.defineMIME("text/plain", "null");

// EXTENSIONS

CodeMirror$1.defineExtension = function (name, func) {
  CodeMirror$1.prototype[name] = func;
};
CodeMirror$1.defineDocExtension = function (name, func) {
  Doc.prototype[name] = func;
};

CodeMirror$1.fromTextArea = fromTextArea;

addLegacyProps(CodeMirror$1);

CodeMirror$1.version = "5.27.2";

return CodeMirror$1;

})));

},{}],66:[function(require,module,exports){
module.exports={"Aacute":"\u00C1","aacute":"\u00E1","Abreve":"\u0102","abreve":"\u0103","ac":"\u223E","acd":"\u223F","acE":"\u223E\u0333","Acirc":"\u00C2","acirc":"\u00E2","acute":"\u00B4","Acy":"\u0410","acy":"\u0430","AElig":"\u00C6","aelig":"\u00E6","af":"\u2061","Afr":"\uD835\uDD04","afr":"\uD835\uDD1E","Agrave":"\u00C0","agrave":"\u00E0","alefsym":"\u2135","aleph":"\u2135","Alpha":"\u0391","alpha":"\u03B1","Amacr":"\u0100","amacr":"\u0101","amalg":"\u2A3F","amp":"&","AMP":"&","andand":"\u2A55","And":"\u2A53","and":"\u2227","andd":"\u2A5C","andslope":"\u2A58","andv":"\u2A5A","ang":"\u2220","ange":"\u29A4","angle":"\u2220","angmsdaa":"\u29A8","angmsdab":"\u29A9","angmsdac":"\u29AA","angmsdad":"\u29AB","angmsdae":"\u29AC","angmsdaf":"\u29AD","angmsdag":"\u29AE","angmsdah":"\u29AF","angmsd":"\u2221","angrt":"\u221F","angrtvb":"\u22BE","angrtvbd":"\u299D","angsph":"\u2222","angst":"\u00C5","angzarr":"\u237C","Aogon":"\u0104","aogon":"\u0105","Aopf":"\uD835\uDD38","aopf":"\uD835\uDD52","apacir":"\u2A6F","ap":"\u2248","apE":"\u2A70","ape":"\u224A","apid":"\u224B","apos":"'","ApplyFunction":"\u2061","approx":"\u2248","approxeq":"\u224A","Aring":"\u00C5","aring":"\u00E5","Ascr":"\uD835\uDC9C","ascr":"\uD835\uDCB6","Assign":"\u2254","ast":"*","asymp":"\u2248","asympeq":"\u224D","Atilde":"\u00C3","atilde":"\u00E3","Auml":"\u00C4","auml":"\u00E4","awconint":"\u2233","awint":"\u2A11","backcong":"\u224C","backepsilon":"\u03F6","backprime":"\u2035","backsim":"\u223D","backsimeq":"\u22CD","Backslash":"\u2216","Barv":"\u2AE7","barvee":"\u22BD","barwed":"\u2305","Barwed":"\u2306","barwedge":"\u2305","bbrk":"\u23B5","bbrktbrk":"\u23B6","bcong":"\u224C","Bcy":"\u0411","bcy":"\u0431","bdquo":"\u201E","becaus":"\u2235","because":"\u2235","Because":"\u2235","bemptyv":"\u29B0","bepsi":"\u03F6","bernou":"\u212C","Bernoullis":"\u212C","Beta":"\u0392","beta":"\u03B2","beth":"\u2136","between":"\u226C","Bfr":"\uD835\uDD05","bfr":"\uD835\uDD1F","bigcap":"\u22C2","bigcirc":"\u25EF","bigcup":"\u22C3","bigodot":"\u2A00","bigoplus":"\u2A01","bigotimes":"\u2A02","bigsqcup":"\u2A06","bigstar":"\u2605","bigtriangledown":"\u25BD","bigtriangleup":"\u25B3","biguplus":"\u2A04","bigvee":"\u22C1","bigwedge":"\u22C0","bkarow":"\u290D","blacklozenge":"\u29EB","blacksquare":"\u25AA","blacktriangle":"\u25B4","blacktriangledown":"\u25BE","blacktriangleleft":"\u25C2","blacktriangleright":"\u25B8","blank":"\u2423","blk12":"\u2592","blk14":"\u2591","blk34":"\u2593","block":"\u2588","bne":"=\u20E5","bnequiv":"\u2261\u20E5","bNot":"\u2AED","bnot":"\u2310","Bopf":"\uD835\uDD39","bopf":"\uD835\uDD53","bot":"\u22A5","bottom":"\u22A5","bowtie":"\u22C8","boxbox":"\u29C9","boxdl":"\u2510","boxdL":"\u2555","boxDl":"\u2556","boxDL":"\u2557","boxdr":"\u250C","boxdR":"\u2552","boxDr":"\u2553","boxDR":"\u2554","boxh":"\u2500","boxH":"\u2550","boxhd":"\u252C","boxHd":"\u2564","boxhD":"\u2565","boxHD":"\u2566","boxhu":"\u2534","boxHu":"\u2567","boxhU":"\u2568","boxHU":"\u2569","boxminus":"\u229F","boxplus":"\u229E","boxtimes":"\u22A0","boxul":"\u2518","boxuL":"\u255B","boxUl":"\u255C","boxUL":"\u255D","boxur":"\u2514","boxuR":"\u2558","boxUr":"\u2559","boxUR":"\u255A","boxv":"\u2502","boxV":"\u2551","boxvh":"\u253C","boxvH":"\u256A","boxVh":"\u256B","boxVH":"\u256C","boxvl":"\u2524","boxvL":"\u2561","boxVl":"\u2562","boxVL":"\u2563","boxvr":"\u251C","boxvR":"\u255E","boxVr":"\u255F","boxVR":"\u2560","bprime":"\u2035","breve":"\u02D8","Breve":"\u02D8","brvbar":"\u00A6","bscr":"\uD835\uDCB7","Bscr":"\u212C","bsemi":"\u204F","bsim":"\u223D","bsime":"\u22CD","bsolb":"\u29C5","bsol":"\\","bsolhsub":"\u27C8","bull":"\u2022","bullet":"\u2022","bump":"\u224E","bumpE":"\u2AAE","bumpe":"\u224F","Bumpeq":"\u224E","bumpeq":"\u224F","Cacute":"\u0106","cacute":"\u0107","capand":"\u2A44","capbrcup":"\u2A49","capcap":"\u2A4B","cap":"\u2229","Cap":"\u22D2","capcup":"\u2A47","capdot":"\u2A40","CapitalDifferentialD":"\u2145","caps":"\u2229\uFE00","caret":"\u2041","caron":"\u02C7","Cayleys":"\u212D","ccaps":"\u2A4D","Ccaron":"\u010C","ccaron":"\u010D","Ccedil":"\u00C7","ccedil":"\u00E7","Ccirc":"\u0108","ccirc":"\u0109","Cconint":"\u2230","ccups":"\u2A4C","ccupssm":"\u2A50","Cdot":"\u010A","cdot":"\u010B","cedil":"\u00B8","Cedilla":"\u00B8","cemptyv":"\u29B2","cent":"\u00A2","centerdot":"\u00B7","CenterDot":"\u00B7","cfr":"\uD835\uDD20","Cfr":"\u212D","CHcy":"\u0427","chcy":"\u0447","check":"\u2713","checkmark":"\u2713","Chi":"\u03A7","chi":"\u03C7","circ":"\u02C6","circeq":"\u2257","circlearrowleft":"\u21BA","circlearrowright":"\u21BB","circledast":"\u229B","circledcirc":"\u229A","circleddash":"\u229D","CircleDot":"\u2299","circledR":"\u00AE","circledS":"\u24C8","CircleMinus":"\u2296","CirclePlus":"\u2295","CircleTimes":"\u2297","cir":"\u25CB","cirE":"\u29C3","cire":"\u2257","cirfnint":"\u2A10","cirmid":"\u2AEF","cirscir":"\u29C2","ClockwiseContourIntegral":"\u2232","CloseCurlyDoubleQuote":"\u201D","CloseCurlyQuote":"\u2019","clubs":"\u2663","clubsuit":"\u2663","colon":":","Colon":"\u2237","Colone":"\u2A74","colone":"\u2254","coloneq":"\u2254","comma":",","commat":"@","comp":"\u2201","compfn":"\u2218","complement":"\u2201","complexes":"\u2102","cong":"\u2245","congdot":"\u2A6D","Congruent":"\u2261","conint":"\u222E","Conint":"\u222F","ContourIntegral":"\u222E","copf":"\uD835\uDD54","Copf":"\u2102","coprod":"\u2210","Coproduct":"\u2210","copy":"\u00A9","COPY":"\u00A9","copysr":"\u2117","CounterClockwiseContourIntegral":"\u2233","crarr":"\u21B5","cross":"\u2717","Cross":"\u2A2F","Cscr":"\uD835\uDC9E","cscr":"\uD835\uDCB8","csub":"\u2ACF","csube":"\u2AD1","csup":"\u2AD0","csupe":"\u2AD2","ctdot":"\u22EF","cudarrl":"\u2938","cudarrr":"\u2935","cuepr":"\u22DE","cuesc":"\u22DF","cularr":"\u21B6","cularrp":"\u293D","cupbrcap":"\u2A48","cupcap":"\u2A46","CupCap":"\u224D","cup":"\u222A","Cup":"\u22D3","cupcup":"\u2A4A","cupdot":"\u228D","cupor":"\u2A45","cups":"\u222A\uFE00","curarr":"\u21B7","curarrm":"\u293C","curlyeqprec":"\u22DE","curlyeqsucc":"\u22DF","curlyvee":"\u22CE","curlywedge":"\u22CF","curren":"\u00A4","curvearrowleft":"\u21B6","curvearrowright":"\u21B7","cuvee":"\u22CE","cuwed":"\u22CF","cwconint":"\u2232","cwint":"\u2231","cylcty":"\u232D","dagger":"\u2020","Dagger":"\u2021","daleth":"\u2138","darr":"\u2193","Darr":"\u21A1","dArr":"\u21D3","dash":"\u2010","Dashv":"\u2AE4","dashv":"\u22A3","dbkarow":"\u290F","dblac":"\u02DD","Dcaron":"\u010E","dcaron":"\u010F","Dcy":"\u0414","dcy":"\u0434","ddagger":"\u2021","ddarr":"\u21CA","DD":"\u2145","dd":"\u2146","DDotrahd":"\u2911","ddotseq":"\u2A77","deg":"\u00B0","Del":"\u2207","Delta":"\u0394","delta":"\u03B4","demptyv":"\u29B1","dfisht":"\u297F","Dfr":"\uD835\uDD07","dfr":"\uD835\uDD21","dHar":"\u2965","dharl":"\u21C3","dharr":"\u21C2","DiacriticalAcute":"\u00B4","DiacriticalDot":"\u02D9","DiacriticalDoubleAcute":"\u02DD","DiacriticalGrave":"`","DiacriticalTilde":"\u02DC","diam":"\u22C4","diamond":"\u22C4","Diamond":"\u22C4","diamondsuit":"\u2666","diams":"\u2666","die":"\u00A8","DifferentialD":"\u2146","digamma":"\u03DD","disin":"\u22F2","div":"\u00F7","divide":"\u00F7","divideontimes":"\u22C7","divonx":"\u22C7","DJcy":"\u0402","djcy":"\u0452","dlcorn":"\u231E","dlcrop":"\u230D","dollar":"$","Dopf":"\uD835\uDD3B","dopf":"\uD835\uDD55","Dot":"\u00A8","dot":"\u02D9","DotDot":"\u20DC","doteq":"\u2250","doteqdot":"\u2251","DotEqual":"\u2250","dotminus":"\u2238","dotplus":"\u2214","dotsquare":"\u22A1","doublebarwedge":"\u2306","DoubleContourIntegral":"\u222F","DoubleDot":"\u00A8","DoubleDownArrow":"\u21D3","DoubleLeftArrow":"\u21D0","DoubleLeftRightArrow":"\u21D4","DoubleLeftTee":"\u2AE4","DoubleLongLeftArrow":"\u27F8","DoubleLongLeftRightArrow":"\u27FA","DoubleLongRightArrow":"\u27F9","DoubleRightArrow":"\u21D2","DoubleRightTee":"\u22A8","DoubleUpArrow":"\u21D1","DoubleUpDownArrow":"\u21D5","DoubleVerticalBar":"\u2225","DownArrowBar":"\u2913","downarrow":"\u2193","DownArrow":"\u2193","Downarrow":"\u21D3","DownArrowUpArrow":"\u21F5","DownBreve":"\u0311","downdownarrows":"\u21CA","downharpoonleft":"\u21C3","downharpoonright":"\u21C2","DownLeftRightVector":"\u2950","DownLeftTeeVector":"\u295E","DownLeftVectorBar":"\u2956","DownLeftVector":"\u21BD","DownRightTeeVector":"\u295F","DownRightVectorBar":"\u2957","DownRightVector":"\u21C1","DownTeeArrow":"\u21A7","DownTee":"\u22A4","drbkarow":"\u2910","drcorn":"\u231F","drcrop":"\u230C","Dscr":"\uD835\uDC9F","dscr":"\uD835\uDCB9","DScy":"\u0405","dscy":"\u0455","dsol":"\u29F6","Dstrok":"\u0110","dstrok":"\u0111","dtdot":"\u22F1","dtri":"\u25BF","dtrif":"\u25BE","duarr":"\u21F5","duhar":"\u296F","dwangle":"\u29A6","DZcy":"\u040F","dzcy":"\u045F","dzigrarr":"\u27FF","Eacute":"\u00C9","eacute":"\u00E9","easter":"\u2A6E","Ecaron":"\u011A","ecaron":"\u011B","Ecirc":"\u00CA","ecirc":"\u00EA","ecir":"\u2256","ecolon":"\u2255","Ecy":"\u042D","ecy":"\u044D","eDDot":"\u2A77","Edot":"\u0116","edot":"\u0117","eDot":"\u2251","ee":"\u2147","efDot":"\u2252","Efr":"\uD835\uDD08","efr":"\uD835\uDD22","eg":"\u2A9A","Egrave":"\u00C8","egrave":"\u00E8","egs":"\u2A96","egsdot":"\u2A98","el":"\u2A99","Element":"\u2208","elinters":"\u23E7","ell":"\u2113","els":"\u2A95","elsdot":"\u2A97","Emacr":"\u0112","emacr":"\u0113","empty":"\u2205","emptyset":"\u2205","EmptySmallSquare":"\u25FB","emptyv":"\u2205","EmptyVerySmallSquare":"\u25AB","emsp13":"\u2004","emsp14":"\u2005","emsp":"\u2003","ENG":"\u014A","eng":"\u014B","ensp":"\u2002","Eogon":"\u0118","eogon":"\u0119","Eopf":"\uD835\uDD3C","eopf":"\uD835\uDD56","epar":"\u22D5","eparsl":"\u29E3","eplus":"\u2A71","epsi":"\u03B5","Epsilon":"\u0395","epsilon":"\u03B5","epsiv":"\u03F5","eqcirc":"\u2256","eqcolon":"\u2255","eqsim":"\u2242","eqslantgtr":"\u2A96","eqslantless":"\u2A95","Equal":"\u2A75","equals":"=","EqualTilde":"\u2242","equest":"\u225F","Equilibrium":"\u21CC","equiv":"\u2261","equivDD":"\u2A78","eqvparsl":"\u29E5","erarr":"\u2971","erDot":"\u2253","escr":"\u212F","Escr":"\u2130","esdot":"\u2250","Esim":"\u2A73","esim":"\u2242","Eta":"\u0397","eta":"\u03B7","ETH":"\u00D0","eth":"\u00F0","Euml":"\u00CB","euml":"\u00EB","euro":"\u20AC","excl":"!","exist":"\u2203","Exists":"\u2203","expectation":"\u2130","exponentiale":"\u2147","ExponentialE":"\u2147","fallingdotseq":"\u2252","Fcy":"\u0424","fcy":"\u0444","female":"\u2640","ffilig":"\uFB03","fflig":"\uFB00","ffllig":"\uFB04","Ffr":"\uD835\uDD09","ffr":"\uD835\uDD23","filig":"\uFB01","FilledSmallSquare":"\u25FC","FilledVerySmallSquare":"\u25AA","fjlig":"fj","flat":"\u266D","fllig":"\uFB02","fltns":"\u25B1","fnof":"\u0192","Fopf":"\uD835\uDD3D","fopf":"\uD835\uDD57","forall":"\u2200","ForAll":"\u2200","fork":"\u22D4","forkv":"\u2AD9","Fouriertrf":"\u2131","fpartint":"\u2A0D","frac12":"\u00BD","frac13":"\u2153","frac14":"\u00BC","frac15":"\u2155","frac16":"\u2159","frac18":"\u215B","frac23":"\u2154","frac25":"\u2156","frac34":"\u00BE","frac35":"\u2157","frac38":"\u215C","frac45":"\u2158","frac56":"\u215A","frac58":"\u215D","frac78":"\u215E","frasl":"\u2044","frown":"\u2322","fscr":"\uD835\uDCBB","Fscr":"\u2131","gacute":"\u01F5","Gamma":"\u0393","gamma":"\u03B3","Gammad":"\u03DC","gammad":"\u03DD","gap":"\u2A86","Gbreve":"\u011E","gbreve":"\u011F","Gcedil":"\u0122","Gcirc":"\u011C","gcirc":"\u011D","Gcy":"\u0413","gcy":"\u0433","Gdot":"\u0120","gdot":"\u0121","ge":"\u2265","gE":"\u2267","gEl":"\u2A8C","gel":"\u22DB","geq":"\u2265","geqq":"\u2267","geqslant":"\u2A7E","gescc":"\u2AA9","ges":"\u2A7E","gesdot":"\u2A80","gesdoto":"\u2A82","gesdotol":"\u2A84","gesl":"\u22DB\uFE00","gesles":"\u2A94","Gfr":"\uD835\uDD0A","gfr":"\uD835\uDD24","gg":"\u226B","Gg":"\u22D9","ggg":"\u22D9","gimel":"\u2137","GJcy":"\u0403","gjcy":"\u0453","gla":"\u2AA5","gl":"\u2277","glE":"\u2A92","glj":"\u2AA4","gnap":"\u2A8A","gnapprox":"\u2A8A","gne":"\u2A88","gnE":"\u2269","gneq":"\u2A88","gneqq":"\u2269","gnsim":"\u22E7","Gopf":"\uD835\uDD3E","gopf":"\uD835\uDD58","grave":"`","GreaterEqual":"\u2265","GreaterEqualLess":"\u22DB","GreaterFullEqual":"\u2267","GreaterGreater":"\u2AA2","GreaterLess":"\u2277","GreaterSlantEqual":"\u2A7E","GreaterTilde":"\u2273","Gscr":"\uD835\uDCA2","gscr":"\u210A","gsim":"\u2273","gsime":"\u2A8E","gsiml":"\u2A90","gtcc":"\u2AA7","gtcir":"\u2A7A","gt":">","GT":">","Gt":"\u226B","gtdot":"\u22D7","gtlPar":"\u2995","gtquest":"\u2A7C","gtrapprox":"\u2A86","gtrarr":"\u2978","gtrdot":"\u22D7","gtreqless":"\u22DB","gtreqqless":"\u2A8C","gtrless":"\u2277","gtrsim":"\u2273","gvertneqq":"\u2269\uFE00","gvnE":"\u2269\uFE00","Hacek":"\u02C7","hairsp":"\u200A","half":"\u00BD","hamilt":"\u210B","HARDcy":"\u042A","hardcy":"\u044A","harrcir":"\u2948","harr":"\u2194","hArr":"\u21D4","harrw":"\u21AD","Hat":"^","hbar":"\u210F","Hcirc":"\u0124","hcirc":"\u0125","hearts":"\u2665","heartsuit":"\u2665","hellip":"\u2026","hercon":"\u22B9","hfr":"\uD835\uDD25","Hfr":"\u210C","HilbertSpace":"\u210B","hksearow":"\u2925","hkswarow":"\u2926","hoarr":"\u21FF","homtht":"\u223B","hookleftarrow":"\u21A9","hookrightarrow":"\u21AA","hopf":"\uD835\uDD59","Hopf":"\u210D","horbar":"\u2015","HorizontalLine":"\u2500","hscr":"\uD835\uDCBD","Hscr":"\u210B","hslash":"\u210F","Hstrok":"\u0126","hstrok":"\u0127","HumpDownHump":"\u224E","HumpEqual":"\u224F","hybull":"\u2043","hyphen":"\u2010","Iacute":"\u00CD","iacute":"\u00ED","ic":"\u2063","Icirc":"\u00CE","icirc":"\u00EE","Icy":"\u0418","icy":"\u0438","Idot":"\u0130","IEcy":"\u0415","iecy":"\u0435","iexcl":"\u00A1","iff":"\u21D4","ifr":"\uD835\uDD26","Ifr":"\u2111","Igrave":"\u00CC","igrave":"\u00EC","ii":"\u2148","iiiint":"\u2A0C","iiint":"\u222D","iinfin":"\u29DC","iiota":"\u2129","IJlig":"\u0132","ijlig":"\u0133","Imacr":"\u012A","imacr":"\u012B","image":"\u2111","ImaginaryI":"\u2148","imagline":"\u2110","imagpart":"\u2111","imath":"\u0131","Im":"\u2111","imof":"\u22B7","imped":"\u01B5","Implies":"\u21D2","incare":"\u2105","in":"\u2208","infin":"\u221E","infintie":"\u29DD","inodot":"\u0131","intcal":"\u22BA","int":"\u222B","Int":"\u222C","integers":"\u2124","Integral":"\u222B","intercal":"\u22BA","Intersection":"\u22C2","intlarhk":"\u2A17","intprod":"\u2A3C","InvisibleComma":"\u2063","InvisibleTimes":"\u2062","IOcy":"\u0401","iocy":"\u0451","Iogon":"\u012E","iogon":"\u012F","Iopf":"\uD835\uDD40","iopf":"\uD835\uDD5A","Iota":"\u0399","iota":"\u03B9","iprod":"\u2A3C","iquest":"\u00BF","iscr":"\uD835\uDCBE","Iscr":"\u2110","isin":"\u2208","isindot":"\u22F5","isinE":"\u22F9","isins":"\u22F4","isinsv":"\u22F3","isinv":"\u2208","it":"\u2062","Itilde":"\u0128","itilde":"\u0129","Iukcy":"\u0406","iukcy":"\u0456","Iuml":"\u00CF","iuml":"\u00EF","Jcirc":"\u0134","jcirc":"\u0135","Jcy":"\u0419","jcy":"\u0439","Jfr":"\uD835\uDD0D","jfr":"\uD835\uDD27","jmath":"\u0237","Jopf":"\uD835\uDD41","jopf":"\uD835\uDD5B","Jscr":"\uD835\uDCA5","jscr":"\uD835\uDCBF","Jsercy":"\u0408","jsercy":"\u0458","Jukcy":"\u0404","jukcy":"\u0454","Kappa":"\u039A","kappa":"\u03BA","kappav":"\u03F0","Kcedil":"\u0136","kcedil":"\u0137","Kcy":"\u041A","kcy":"\u043A","Kfr":"\uD835\uDD0E","kfr":"\uD835\uDD28","kgreen":"\u0138","KHcy":"\u0425","khcy":"\u0445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2","nvlt":"<\u20D2","nvltrie":"\u22B4\u20D2","nvrArr":"\u2903","nvrtrie":"\u22B5\u20D2","nvsim":"\u223C\u20D2","nwarhk":"\u2923","nwarr":"\u2196","nwArr":"\u21D6","nwarrow":"\u2196","nwnear":"\u2927","Oacute":"\u00D3","oacute":"\u00F3","oast":"\u229B","Ocirc":"\u00D4","ocirc":"\u00F4","ocir":"\u229A","Ocy":"\u041E","ocy":"\u043E","odash":"\u229D","Odblac":"\u0150","odblac":"\u0151","odiv":"\u2A38","odot":"\u2299","odsold":"\u29BC","OElig":"\u0152","oelig":"\u0153","ofcir":"\u29BF","Ofr":"\uD835\uDD12","ofr":"\uD835\uDD2C","ogon":"\u02DB","Ograve":"\u00D2","ograve":"\u00F2","ogt":"\u29C1","ohbar":"\u29B5","ohm":"\u03A9","oint":"\u222E","olarr":"\u21BA","olcir":"\u29BE","olcross":"\u29BB","oline":"\u203E","olt":"\u29C0","Omacr":"\u014C","omacr":"\u014D","Omega":"\u03A9","omega":"\u03C9","Omicron":"\u039F","omicron":"\u03BF","omid":"\u29B6","ominus":"\u2296","Oopf":"\uD835\uDD46","oopf":"\uD835\uDD60","opar":"\u29B7","OpenCurlyDoubleQuote":"\u201C","OpenCurlyQuote":"\u2018","operp":"\u29B9","oplus":"\u2295","orarr":"\u21BB","Or":"\u2A54","or":"\u2228","ord":"\u2A5D","order":"\u2134","orderof":"\u2134","ordf":"\u00AA","ordm":"\u00BA","origof":"\u22B6","oror":"\u2A56","orslope":"\u2A57","orv":"\u2A5B","oS":"\u24C8","Oscr":"\uD835\uDCAA","oscr":"\u2134","Oslash":"\u00D8","oslash":"\u00F8","osol":"\u2298","Otilde":"\u00D5","otilde":"\u00F5","otimesas":"\u2A36","Otimes":"\u2A37","otimes":"\u2297","Ouml":"\u00D6","ouml":"\u00F6","ovbar":"\u233D","OverBar":"\u203E","OverBrace":"\u23DE","OverBracket":"\u23B4","OverParenthesis":"\u23DC","para":"\u00B6","parallel":"\u2225","par":"\u2225","parsim":"\u2AF3","parsl":"\u2AFD","part":"\u2202","PartialD":"\u2202","Pcy":"\u041F","pcy":"\u043F","percnt":"%","period":".","permil":"\u2030","perp":"\u22A5","pertenk":"\u2031","Pfr":"\uD835\uDD13","pfr":"\uD835\uDD2D","Phi":"\u03A6","phi":"\u03C6","phiv":"\u03D5","phmmat":"\u2133","phone":"\u260E","Pi":"\u03A0","pi":"\u03C0","pitchfork":"\u22D4","piv":"\u03D6","planck":"\u210F","planckh":"\u210E","plankv":"\u210F","plusacir":"\u2A23","plusb":"\u229E","pluscir":"\u2A22","plus":"+","plusdo":"\u2214","plusdu":"\u2A25","pluse":"\u2A72","PlusMinus":"\u00B1","plusmn":"\u00B1","plussim":"\u2A26","plustwo":"\u2A27","pm":"\u00B1","Poincareplane":"\u210C","pointint":"\u2A15","popf":"\uD835\uDD61","Popf":"\u2119","pound":"\u00A3","prap":"\u2AB7","Pr":"\u2ABB","pr":"\u227A","prcue":"\u227C","precapprox":"\u2AB7","prec":"\u227A","preccurlyeq":"\u227C","Precedes":"\u227A","PrecedesEqual":"\u2AAF","PrecedesSlantEqual":"\u227C","PrecedesTilde":"\u227E","preceq":"\u2AAF","precnapprox":"\u2AB9","precneqq":"\u2AB5","precnsim":"\u22E8","pre":"\u2AAF","prE":"\u2AB3","precsim":"\u227E","prime":"\u2032","Prime":"\u2033","primes":"\u2119","prnap":"\u2AB9","prnE":"\u2AB5","prnsim":"\u22E8","prod":"\u220F","Product":"\u220F","profalar":"\u232E","profline":"\u2312","profsurf":"\u2313","prop":"\u221D","Proportional":"\u221D","Proportion":"\u2237","propto":"\u221D","prsim":"\u227E","prurel":"\u22B0","Pscr":"\uD835\uDCAB","pscr":"\uD835\uDCC5","Psi":"\u03A8","psi":"\u03C8","puncsp":"\u2008","Qfr":"\uD835\uDD14","qfr":"\uD835\uDD2E","qint":"\u2A0C","qopf":"\uD835\uDD62","Qopf":"\u211A","qprime":"\u2057","Qscr":"\uD835\uDCAC","qscr":"\uD835\uDCC6","quaternions":"\u210D","quatint":"\u2A16","quest":"?","questeq":"\u225F","quot":"\"","QUOT":"\"","rAarr":"\u21DB","race":"\u223D\u0331","Racute":"\u0154","racute":"\u0155","radic":"\u221A","raemptyv":"\u29B3","rang":"\u27E9","Rang":"\u27EB","rangd":"\u2992","range":"\u29A5","rangle":"\u27E9","raquo":"\u00BB","rarrap":"\u2975","rarrb":"\u21E5","rarrbfs":"\u2920","rarrc":"\u2933","rarr":"\u2192","Rarr":"\u21A0","rArr":"\u21D2","rarrfs":"\u291E","rarrhk":"\u21AA","rarrlp":"\u21AC","rarrpl":"\u2945","rarrsim":"\u2974","Rarrtl":"\u2916","rarrtl":"\u21A3","rarrw":"\u219D","ratail":"\u291A","rAtail":"\u291C","ratio":"\u2236","rationals":"\u211A","rbarr":"\u290D","rBarr":"\u290F","RBarr":"\u2910","rbbrk":"\u2773","rbrace":"}","rbrack":"]","rbrke":"\u298C","rbrksld":"\u298E","rbrkslu":"\u2990","Rcaron":"\u0158","rcaron":"\u0159","Rcedil":"\u0156","rcedil":"\u0157","rceil":"\u2309","rcub":"}","Rcy":"\u0420","rcy":"\u0440","rdca":"\u2937","rdldhar":"\u2969","rdquo":"\u201D","rdquor":"\u201D","rdsh":"\u21B3","real":"\u211C","realine":"\u211B","realpart":"\u211C","reals":"\u211D","Re":"\u211C","rect":"\u25AD","reg":"\u00AE","REG":"\u00AE","ReverseElement":"\u220B","ReverseEquilibrium":"\u21CB","ReverseUpEquilibrium":"\u296F","rfisht":"\u297D","rfloor":"\u230B","rfr":"\uD835\uDD2F","Rfr":"\u211C","rHar":"\u2964","rhard":"\u21C1","rharu":"\u21C0","rharul":"\u296C","Rho":"\u03A1","rho":"\u03C1","rhov":"\u03F1","RightAngleBracket":"\u27E9","RightArrowBar":"\u21E5","rightarrow":"\u2192","RightArrow":"\u2192","Rightarrow":"\u21D2","RightArrowLeftArrow":"\u21C4","rightarrowtail":"\u21A3","RightCeiling":"\u2309","RightDoubleBracket":"\u27E7","RightDownTeeVector":"\u295D","RightDownVectorBar":"\u2955","RightDownVector":"\u21C2","RightFloor":"\u230B","rightharpoondown":"\u21C1","rightharpoonup":"\u21C0","rightleftarrows":"\u21C4","rightleftharpoons":"\u21CC","rightrightarrows":"\u21C9","rightsquigarrow":"\u219D","RightTeeArrow":"\u21A6","RightTee":"\u22A2","RightTeeVector":"\u295B","rightthreetimes":"\u22CC","RightTriangleBar":"\u29D0","RightTriangle":"\u22B3","RightTriangleEqual":"\u22B5","RightUpDownVector":"\u294F","RightUpTeeVector":"\u295C","RightUpVectorBar":"\u2954","RightUpVector":"\u21BE","RightVectorBar":"\u2953","RightVector":"\u21C0","ring":"\u02DA","risingdotseq":"\u2253","rlarr":"\u21C4","rlhar":"\u21CC","rlm":"\u200F","rmoustache":"\u23B1","rmoust":"\u23B1","rnmid":"\u2AEE","roang":"\u27ED","roarr":"\u21FE","robrk":"\u27E7","ropar":"\u2986","ropf":"\uD835\uDD63","Ropf":"\u211D","roplus":"\u2A2E","rotimes":"\u2A35","RoundImplies":"\u2970","rpar":")","rpargt":"\u2994","rppolint":"\u2A12","rrarr":"\u21C9","Rrightarrow":"\u21DB","rsaquo":"\u203A","rscr":"\uD835\uDCC7","Rscr":"\u211B","rsh":"\u21B1","Rsh":"\u21B1","rsqb":"]","rsquo":"\u2019","rsquor":"\u2019","rthree":"\u22CC","rtimes":"\u22CA","rtri":"\u25B9","rtrie":"\u22B5","rtrif":"\u25B8","rtriltri":"\u29CE","RuleDelayed":"\u29F4","ruluhar":"\u2968","rx":"\u211E","Sacute":"\u015A","sacute":"\u015B","sbquo":"\u201A","scap":"\u2AB8","Scaron":"\u0160","scaron":"\u0161","Sc":"\u2ABC","sc":"\u227B","sccue":"\u227D","sce":"\u2AB0","scE":"\u2AB4","Scedil":"\u015E","scedil":"\u015F","Scirc":"\u015C","scirc":"\u015D","scnap":"\u2ABA","scnE":"\u2AB6","scnsim":"\u22E9","scpolint":"\u2A13","scsim":"\u227F","Scy":"\u0421","scy":"\u0441","sdotb":"\u22A1","sdot":"\u22C5","sdote":"\u2A66","searhk":"\u2925","searr":"\u2198","seArr":"\u21D8","searrow":"\u2198","sect":"\u00A7","semi":";","seswar":"\u2929","setminus":"\u2216","setmn":"\u2216","sext":"\u2736","Sfr":"\uD835\uDD16","sfr":"\uD835\uDD30","sfrown":"\u2322","sharp":"\u266F","SHCHcy":"\u0429","shchcy":"\u0449","SHcy":"\u0428","shcy":"\u0448","ShortDownArrow":"\u2193","ShortLeftArrow":"\u2190","shortmid":"\u2223","shortparallel":"\u2225","ShortRightArrow":"\u2192","ShortUpArrow":"\u2191","shy":"\u00AD","Sigma":"\u03A3","sigma":"\u03C3","sigmaf":"\u03C2","sigmav":"\u03C2","sim":"\u223C","simdot":"\u2A6A","sime":"\u2243","simeq":"\u2243","simg":"\u2A9E","simgE":"\u2AA0","siml":"\u2A9D","simlE":"\u2A9F","simne":"\u2246","simplus":"\u2A24","simrarr":"\u2972","slarr":"\u2190","SmallCircle":"\u2218","smallsetminus":"\u2216","smashp":"\u2A33","smeparsl":"\u29E4","smid":"\u2223","smile":"\u2323","smt":"\u2AAA","smte":"\u2AAC","smtes":"\u2AAC\uFE00","SOFTcy":"\u042C","softcy":"\u044C","solbar":"\u233F","solb":"\u29C4","sol":"/","Sopf":"\uD835\uDD4A","sopf":"\uD835\uDD64","spades":"\u2660","spadesuit":"\u2660","spar":"\u2225","sqcap":"\u2293","sqcaps":"\u2293\uFE00","sqcup":"\u2294","sqcups":"\u2294\uFE00","Sqrt":"\u221A","sqsub":"\u228F","sqsube":"\u2291","sqsubset":"\u228F","sqsubseteq":"\u2291","sqsup":"\u2290","sqsupe":"\u2292","sqsupset":"\u2290","sqsupseteq":"\u2292","square":"\u25A1","Square":"\u25A1","SquareIntersection":"\u2293","SquareSubset":"\u228F","SquareSubsetEqual":"\u2291","SquareSuperset":"\u2290","SquareSupersetEqual":"\u2292","SquareUnion":"\u2294","squarf":"\u25AA","squ":"\u25A1","squf":"\u25AA","srarr":"\u2192","Sscr":"\uD835\uDCAE","sscr":"\uD835\uDCC8","ssetmn":"\u2216","ssmile":"\u2323","sstarf":"\u22C6","Star":"\u22C6","star":"\u2606","starf":"\u2605","straightepsilon":"\u03F5","straightphi":"\u03D5","strns":"\u00AF","sub":"\u2282","Sub":"\u22D0","subdot":"\u2ABD","subE":"\u2AC5","sube":"\u2286","subedot":"\u2AC3","submult":"\u2AC1","subnE":"\u2ACB","subne":"\u228A","subplus":"\u2ABF","subrarr":"\u2979","subset":"\u2282","Subset":"\u22D0","subseteq":"\u2286","subseteqq":"\u2AC5","SubsetEqual":"\u2286","subsetneq":"\u228A","subsetneqq":"\u2ACB","subsim":"\u2AC7","subsub":"\u2AD5","subsup":"\u2AD3","succapprox":"\u2AB8","succ":"\u227B","succcurlyeq":"\u227D","Succeeds":"\u227B","SucceedsEqual":"\u2AB0","SucceedsSlantEqual":"\u227D","SucceedsTilde":"\u227F","succeq":"\u2AB0","succnapprox":"\u2ABA","succneqq":"\u2AB6","succnsim":"\u22E9","succsim":"\u227F","SuchThat":"\u220B","sum":"\u2211","Sum":"\u2211","sung":"\u266A","sup1":"\u00B9","sup2":"\u00B2","sup3":"\u00B3","sup":"\u2283","Sup":"\u22D1","supdot":"\u2ABE","supdsub":"\u2AD8","supE":"\u2AC6","supe":"\u2287","supedot":"\u2AC4","Superset":"\u2283","SupersetEqual":"\u2287","suphsol":"\u27C9","suphsub":"\u2AD7","suplarr":"\u297B","supmult":"\u2AC2","supnE":"\u2ACC","supne":"\u228B","supplus":"\u2AC0","supset":"\u2283","Supset":"\u22D1","supseteq":"\u2287","supseteqq":"\u2AC6","supsetneq":"\u228B","supsetneqq":"\u2ACC","supsim":"\u2AC8","supsub":"\u2AD4","supsup":"\u2AD6","swarhk":"\u2926","swarr":"\u2199","swArr":"\u21D9","swarrow":"\u2199","swnwar":"\u292A","szlig":"\u00DF","Tab":"\t","target":"\u2316","Tau":"\u03A4","tau":"\u03C4","tbrk":"\u23B4","Tcaron":"\u0164","tcaron":"\u0165","Tcedil":"\u0162","tcedil":"\u0163","Tcy":"\u0422","tcy":"\u0442","tdot":"\u20DB","telrec":"\u2315","Tfr":"\uD835\uDD17","tfr":"\uD835\uDD31","there4":"\u2234","therefore":"\u2234","Therefore":"\u2234","Theta":"\u0398","theta":"\u03B8","thetasym":"\u03D1","thetav":"\u03D1","thickapprox":"\u2248","thicksim":"\u223C","ThickSpace":"\u205F\u200A","ThinSpace":"\u2009","thinsp":"\u2009","thkap":"\u2248","thksim":"\u223C","THORN":"\u00DE","thorn":"\u00FE","tilde":"\u02DC","Tilde":"\u223C","TildeEqual":"\u2243","TildeFullEqual":"\u2245","TildeTilde":"\u2248","timesbar":"\u2A31","timesb":"\u22A0","times":"\u00D7","timesd":"\u2A30","tint":"\u222D","toea":"\u2928","topbot":"\u2336","topcir":"\u2AF1","top":"\u22A4","Topf":"\uD835\uDD4B","topf":"\uD835\uDD65","topfork":"\u2ADA","tosa":"\u2929","tprime":"\u2034","trade":"\u2122","TRADE":"\u2122","triangle":"\u25B5","triangledown":"\u25BF","triangleleft":"\u25C3","trianglelefteq":"\u22B4","triangleq":"\u225C","triangleright":"\u25B9","trianglerighteq":"\u22B5","tridot":"\u25EC","trie":"\u225C","triminus":"\u2A3A","TripleDot":"\u20DB","triplus":"\u2A39","trisb":"\u29CD","tritime":"\u2A3B","trpezium":"\u23E2","Tscr":"\uD835\uDCAF","tscr":"\uD835\uDCC9","TScy":"\u0426","tscy":"\u0446","TSHcy":"\u040B","tshcy":"\u045B","Tstrok":"\u0166","tstrok":"\u0167","twixt":"\u226C","twoheadleftarrow":"\u219E","twoheadrightarrow":"\u21A0","Uacute":"\u00DA","uacute":"\u00FA","uarr":"\u2191","Uarr":"\u219F","uArr":"\u21D1","Uarrocir":"\u2949","Ubrcy":"\u040E","ubrcy":"\u045E","Ubreve":"\u016C","ubreve":"\u016D","Ucirc":"\u00DB","ucirc":"\u00FB","Ucy":"\u0423","ucy":"\u0443","udarr":"\u21C5","Udblac":"\u0170","udblac":"\u0171","udhar":"\u296E","ufisht":"\u297E","Ufr":"\uD835\uDD18","ufr":"\uD835\uDD32","Ugrave":"\u00D9","ugrave":"\u00F9","uHar":"\u2963","uharl":"\u21BF","uharr":"\u21BE","uhblk":"\u2580","ulcorn":"\u231C","ulcorner":"\u231C","ulcrop":"\u230F","ultri":"\u25F8","Umacr":"\u016A","umacr":"\u016B","uml":"\u00A8","UnderBar":"_","UnderBrace":"\u23DF","UnderBracket":"\u23B5","UnderParenthesis":"\u23DD","Union":"\u22C3","UnionPlus":"\u228E","Uogon":"\u0172","uogon":"\u0173","Uopf":"\uD835\uDD4C","uopf":"\uD835\uDD66","UpArrowBar":"\u2912","uparrow":"\u2191","UpArrow":"\u2191","Uparrow":"\u21D1","UpArrowDownArrow":"\u21C5","updownarrow":"\u2195","UpDownArrow":"\u2195","Updownarrow":"\u21D5","UpEquilibrium":"\u296E","upharpoonleft":"\u21BF","upharpoonright":"\u21BE","uplus":"\u228E","UpperLeftArrow":"\u2196","UpperRightArrow":"\u2197","upsi":"\u03C5","Upsi":"\u03D2","upsih":"\u03D2","Upsilon":"\u03A5","upsilon":"\u03C5","UpTeeArrow":"\u21A5","UpTee":"\u22A5","upuparrows":"\u21C8","urcorn":"\u231D","urcorner":"\u231D","urcrop":"\u230E","Uring":"\u016E","uring":"\u016F","urtri":"\u25F9","Uscr":"\uD835\uDCB0","uscr":"\uD835\uDCCA","utdot":"\u22F0","Utilde":"\u0168","utilde":"\u0169","utri":"\u25B5","utrif":"\u25B4","uuarr":"\u21C8","Uuml":"\u00DC","uuml":"\u00FC","uwangle":"\u29A7","vangrt":"\u299C","varepsilon":"\u03F5","varkappa":"\u03F0","varnothing":"\u2205","varphi":"\u03D5","varpi":"\u03D6","varpropto":"\u221D","varr":"\u2195","vArr":"\u21D5","varrho":"\u03F1","varsigma":"\u03C2","varsubsetneq":"\u228A\uFE00","varsubsetneqq":"\u2ACB\uFE00","varsupsetneq":"\u228B\uFE00","varsupsetneqq":"\u2ACC\uFE00","vartheta":"\u03D1","vartriangleleft":"\u22B2","vartriangleright":"\u22B3","vBar":"\u2AE8","Vbar":"\u2AEB","vBarv":"\u2AE9","Vcy":"\u0412","vcy":"\u0432","vdash":"\u22A2","vDash":"\u22A8","Vdash":"\u22A9","VDash":"\u22AB","Vdashl":"\u2AE6","veebar":"\u22BB","vee":"\u2228","Vee":"\u22C1","veeeq":"\u225A","vellip":"\u22EE","verbar":"|","Verbar":"\u2016","vert":"|","Vert":"\u2016","VerticalBar":"\u2223","VerticalLine":"|","VerticalSeparator":"\u2758","VerticalTilde":"\u2240","VeryThinSpace":"\u200A","Vfr":"\uD835\uDD19","vfr":"\uD835\uDD33","vltri":"\u22B2","vnsub":"\u2282\u20D2","vnsup":"\u2283\u20D2","Vopf":"\uD835\uDD4D","vopf":"\uD835\uDD67","vprop":"\u221D","vrtri":"\u22B3","Vscr":"\uD835\uDCB1","vscr":"\uD835\uDCCB","vsubnE":"\u2ACB\uFE00","vsubne":"\u228A\uFE00","vsupnE":"\u2ACC\uFE00","vsupne":"\u228B\uFE00","Vvdash":"\u22AA","vzigzag":"\u299A","Wcirc":"\u0174","wcirc":"\u0175","wedbar":"\u2A5F","wedge":"\u2227","Wedge":"\u22C0","wedgeq":"\u2259","weierp":"\u2118","Wfr":"\uD835\uDD1A","wfr":"\uD835\uDD34","Wopf":"\uD835\uDD4E","wopf":"\uD835\uDD68","wp":"\u2118","wr":"\u2240","wreath":"\u2240","Wscr":"\uD835\uDCB2","wscr":"\uD835\uDCCC","xcap":"\u22C2","xcirc":"\u25EF","xcup":"\u22C3","xdtri":"\u25BD","Xfr":"\uD835\uDD1B","xfr":"\uD835\uDD35","xharr":"\u27F7","xhArr":"\u27FA","Xi":"\u039E","xi":"\u03BE","xlarr":"\u27F5","xlArr":"\u27F8","xmap":"\u27FC","xnis":"\u22FB","xodot":"\u2A00","Xopf":"\uD835\uDD4F","xopf":"\uD835\uDD69","xoplus":"\u2A01","xotime":"\u2A02","xrarr":"\u27F6","xrArr":"\u27F9","Xscr":"\uD835\uDCB3","xscr":"\uD835\uDCCD","xsqcup":"\u2A06","xuplus":"\u2A04","xutri":"\u25B3","xvee":"\u22C1","xwedge":"\u22C0","Yacute":"\u00DD","yacute":"\u00FD","YAcy":"\u042F","yacy":"\u044F","Ycirc":"\u0176","ycirc":"\u0177","Ycy":"\u042B","ycy":"\u044B","yen":"\u00A5","Yfr":"\uD835\uDD1C","yfr":"\uD835\uDD36","YIcy":"\u0407","yicy":"\u0457","Yopf":"\uD835\uDD50","yopf":"\uD835\uDD6A","Yscr":"\uD835\uDCB4","yscr":"\uD835\uDCCE","YUcy":"\u042E","yucy":"\u044E","yuml":"\u00FF","Yuml":"\u0178","Zacute":"\u0179","zacute":"\u017A","Zcaron":"\u017D","zcaron":"\u017E","Zcy":"\u0417","zcy":"\u0437","Zdot":"\u017B","zdot":"\u017C","zeetrf":"\u2128","ZeroWidthSpace":"\u200B","Zeta":"\u0396","zeta":"\u03B6","zfr":"\uD835\uDD37","Zfr":"\u2128","ZHcy":"\u0416","zhcy":"\u0436","zigrarr":"\u21DD","zopf":"\uD835\uDD6B","Zopf":"\u2124","Zscr":"\uD835\uDCB5","zscr":"\uD835\uDCCF","zwj":"\u200D","zwnj":"\u200C"}
},{}],67:[function(require,module,exports){
"use strict";

/**
 * Copyright (c) 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * 
 */

function makeEmptyFunction(arg) {
  return function () {
    return arg;
  };
}

/**
 * This function accepts and discards inputs; it has no side effects. This is
 * primarily useful idiomatically for overridable function endpoints which
 * always need to be callable, since JS lacks a null-call idiom ala Cocoa.
 */
var emptyFunction = function emptyFunction() {};

emptyFunction.thatReturns = makeEmptyFunction;
emptyFunction.thatReturnsFalse = makeEmptyFunction(false);
emptyFunction.thatReturnsTrue = makeEmptyFunction(true);
emptyFunction.thatReturnsNull = makeEmptyFunction(null);
emptyFunction.thatReturnsThis = function () {
  return this;
};
emptyFunction.thatReturnsArgument = function (arg) {
  return arg;
};

module.exports = emptyFunction;
},{}],68:[function(require,module,exports){
(function (process){
/**
 * Copyright (c) 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 */

'use strict';

/**
 * Use invariant() to assert state which your program assumes to be true.
 *
 * Provide sprintf-style format (only %s is supported) and arguments
 * to provide information about what broke and what you were
 * expecting.
 *
 * The invariant message will be stripped in production, but the invariant
 * will remain to ensure logic does not differ in production.
 */

var validateFormat = function validateFormat(format) {};

if (process.env.NODE_ENV !== 'production') {
  validateFormat = function validateFormat(format) {
    if (format === undefined) {
      throw new Error('invariant requires an error message argument');
    }
  };
}

function invariant(condition, format, a, b, c, d, e, f) {
  validateFormat(format);

  if (!condition) {
    var error;
    if (format === undefined) {
      error = new Error('Minified exception occurred; use the non-minified dev environment ' + 'for the full error message and additional helpful warnings.');
    } else {
      var args = [a, b, c, d, e, f];
      var argIndex = 0;
      error = new Error(format.replace(/%s/g, function () {
        return args[argIndex++];
      }));
      error.name = 'Invariant Violation';
    }

    error.framesToPop = 1; // we don't care about invariant's own frame
    throw error;
  }
}

module.exports = invariant;
}).call(this,require('_process'))
},{"_process":229}],69:[function(require,module,exports){
(function (process){
/**
 * Copyright 2014-2015, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 */

'use strict';

var emptyFunction = require('./emptyFunction');

/**
 * Similar to invariant but only logs a warning if the condition is not met.
 * This can be used to log issues in development environments in critical
 * paths. Removing the logging code for production environments will keep the
 * same logic and follow the same code paths.
 */

var warning = emptyFunction;

if (process.env.NODE_ENV !== 'production') {
  (function () {
    var printWarning = function printWarning(format) {
      for (var _len = arguments.length, args = Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
        args[_key - 1] = arguments[_key];
      }

      var argIndex = 0;
      var message = 'Warning: ' + format.replace(/%s/g, function () {
        return args[argIndex++];
      });
      if (typeof console !== 'undefined') {
        console.error(message);
      }
      try {
        // --- Welcome to debugging React ---
        // This error was thrown as a convenience so that you can use this stack
        // to find the callsite that caused this warning to fire.
        throw new Error(message);
      } catch (x) {}
    };

    warning = function warning(condition, format) {
      if (format === undefined) {
        throw new Error('`warning(condition, format, ...args)` requires a warning ' + 'message argument');
      }

      if (format.indexOf('Failed Composite propType: ') === 0) {
        return; // Ignore CompositeComponent proptype check.
      }

      if (!condition) {
        for (var _len2 = arguments.length, args = Array(_len2 > 2 ? _len2 - 2 : 0), _key2 = 2; _key2 < _len2; _key2++) {
          args[_key2 - 2] = arguments[_key2];
        }

        printWarning.apply(undefined, [format].concat(args));
      }
    };
  })();
}

module.exports = warning;
}).call(this,require('_process'))
},{"./emptyFunction":67,"_process":229}],70:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.GraphQLLanguageService = undefined;

var _kinds = require('graphql/language/kinds');

var _graphql = require('graphql');

var _getAutocompleteSuggestions2 = require('./getAutocompleteSuggestions');

var _getDiagnostics = require('./getDiagnostics');

var _getDefinition = require('./getDefinition');

var _graphqlLanguageServiceUtils = require('graphql-language-service-utils');

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } } /**
                                                                                                                                                           *  Copyright (c) Facebook, Inc.
                                                                                                                                                           *  All rights reserved.
                                                                                                                                                           *
                                                                                                                                                           *  This source code is licensed under the license found in the
                                                                                                                                                           *  LICENSE file in the root directory of this source tree.
                                                                                                                                                           *
                                                                                                                                                           *  
                                                                                                                                                           */

var GraphQLLanguageService = exports.GraphQLLanguageService = function () {
  function GraphQLLanguageService(cache) {
    _classCallCheck(this, GraphQLLanguageService);

    this._graphQLCache = cache;
    this._graphQLConfig = cache.getGraphQLConfig();
  }

  GraphQLLanguageService.prototype.getDiagnostics = function getDiagnostics(query, uri) {
    var source, appName, schema, customRules, fragmentDefinitions, fragmentDependencies, dependenciesSource, customRulesModulePath, rulesPath;
    return regeneratorRuntime.async(function getDiagnostics$(_context) {
      while (1) {
        switch (_context.prev = _context.next) {
          case 0:
            source = query;
            appName = this._graphQLConfig.getAppConfigNameByFilePath(uri);
            // If there's a matching config, proceed to prepare to run validation

            schema = void 0;
            customRules = void 0;

            if (!this._graphQLConfig.getSchemaPath(appName)) {
              _context.next = 18;
              break;
            }

            _context.next = 7;
            return regeneratorRuntime.awrap(this._graphQLCache.getSchema(this._graphQLConfig.getSchemaPath(appName)));

          case 7:
            schema = _context.sent;
            _context.next = 10;
            return regeneratorRuntime.awrap(this._graphQLCache.getFragmentDefinitions(this._graphQLConfig, appName));

          case 10:
            fragmentDefinitions = _context.sent;
            _context.next = 13;
            return regeneratorRuntime.awrap(this._graphQLCache.getFragmentDependencies(query, fragmentDefinitions));

          case 13:
            fragmentDependencies = _context.sent;
            dependenciesSource = fragmentDependencies.reduce(function (prev, cur) {
              return prev + ' ' + (0, _graphql.print)(cur.definition);
            }, '');


            source = source + ' ' + dependenciesSource;

            // Check if there are custom validation rules to be used
            customRulesModulePath = this._graphQLConfig.getCustomValidationRulesModulePath(appName);

            if (customRulesModulePath) {
              /* eslint-disable no-implicit-coercion */
              rulesPath = require.resolve('' + customRulesModulePath);

              if (rulesPath) {
                customRules = require('' + rulesPath)(this._graphQLConfig);
              }
              /* eslint-enable no-implicit-coercion */
            }

          case 18:
            return _context.abrupt('return', (0, _getDiagnostics.getDiagnostics)(source, schema, customRules));

          case 19:
          case 'end':
            return _context.stop();
        }
      }
    }, null, this);
  };

  GraphQLLanguageService.prototype.getAutocompleteSuggestions = function getAutocompleteSuggestions(query, position, filePath) {
    var appName, schema;
    return regeneratorRuntime.async(function getAutocompleteSuggestions$(_context2) {
      while (1) {
        switch (_context2.prev = _context2.next) {
          case 0:
            appName = this._graphQLConfig.getAppConfigNameByFilePath(filePath);
            schema = void 0;

            if (!this._graphQLConfig.getSchemaPath(appName)) {
              _context2.next = 8;
              break;
            }

            _context2.next = 5;
            return regeneratorRuntime.awrap(this._graphQLCache.getSchema(this._graphQLConfig.getSchemaPath(appName)));

          case 5:
            schema = _context2.sent;

            if (!schema) {
              _context2.next = 8;
              break;
            }

            return _context2.abrupt('return', (0, _getAutocompleteSuggestions2.getAutocompleteSuggestions)(schema, query, position));

          case 8:
            return _context2.abrupt('return', []);

          case 9:
          case 'end':
            return _context2.stop();
        }
      }
    }, null, this);
  };

  GraphQLLanguageService.prototype.getDefinition = function getDefinition(query, position, filePath) {
    var appName, ast, node;
    return regeneratorRuntime.async(function getDefinition$(_context3) {
      while (1) {
        switch (_context3.prev = _context3.next) {
          case 0:
            appName = this._graphQLConfig.getAppConfigNameByFilePath(filePath);
            ast = void 0;
            _context3.prev = 2;

            ast = (0, _graphql.parse)(query);
            _context3.next = 9;
            break;

          case 6:
            _context3.prev = 6;
            _context3.t0 = _context3['catch'](2);
            return _context3.abrupt('return', null);

          case 9:
            node = (0, _graphqlLanguageServiceUtils.getASTNodeAtPosition)(query, ast, position);

            if (!node) {
              _context3.next = 16;
              break;
            }

            _context3.t1 = node.kind;
            _context3.next = _context3.t1 === _kinds.FRAGMENT_SPREAD ? 14 : _context3.t1 === _kinds.FRAGMENT_DEFINITION ? 15 : _context3.t1 === _kinds.OPERATION_DEFINITION ? 15 : 16;
            break;

          case 14:
            return _context3.abrupt('return', this._getDefinitionForFragmentSpread(query, ast, node, filePath, this._graphQLConfig, appName));

          case 15:
            return _context3.abrupt('return', (0, _getDefinition.getDefinitionQueryResultForDefinitionNode)(filePath, query, node));

          case 16:
            return _context3.abrupt('return', null);

          case 17:
          case 'end':
            return _context3.stop();
        }
      }
    }, null, this, [[2, 6]]);
  };

  GraphQLLanguageService.prototype._getDefinitionForFragmentSpread = function _getDefinitionForFragmentSpread(query, ast, node, filePath, graphQLConfig, appName) {
    var fragmentDefinitions, dependencies, localFragDefinitions, typeCastedDefs, localFragInfos, result;
    return regeneratorRuntime.async(function _getDefinitionForFragmentSpread$(_context4) {
      while (1) {
        switch (_context4.prev = _context4.next) {
          case 0:
            _context4.next = 2;
            return regeneratorRuntime.awrap(this._graphQLCache.getFragmentDefinitions(graphQLConfig, appName));

          case 2:
            fragmentDefinitions = _context4.sent;
            _context4.next = 5;
            return regeneratorRuntime.awrap(this._graphQLCache.getFragmentDependenciesForAST(ast, fragmentDefinitions));

          case 5:
            dependencies = _context4.sent;
            localFragDefinitions = ast.definitions.filter(function (definition) {
              return definition.kind === _kinds.FRAGMENT_DEFINITION;
            });
            typeCastedDefs = localFragDefinitions;
            localFragInfos = typeCastedDefs.map(function (definition) {
              return {
                filePath: filePath,
                content: query,
                definition: definition
              };
            });
            _context4.next = 11;
            return regeneratorRuntime.awrap((0, _getDefinition.getDefinitionQueryResultForFragmentSpread)(query, node, dependencies.concat(localFragInfos)));

          case 11:
            result = _context4.sent;
            return _context4.abrupt('return', result);

          case 13:
          case 'end':
            return _context4.stop();
        }
      }
    }, null, this);
  };

  return GraphQLLanguageService;
}();
},{"./getAutocompleteSuggestions":72,"./getDefinition":73,"./getDiagnostics":74,"graphql":95,"graphql-language-service-utils":84,"graphql/language/kinds":105}],71:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.getDefinitionState = getDefinitionState;
exports.getFieldDef = getFieldDef;
exports.forEachState = forEachState;
exports.objectValues = objectValues;
exports.hintList = hintList;

var _graphql = require('graphql');

var _introspection = require('graphql/type/introspection');

// Utility for returning the state representing the Definition this token state
// is within, if any.
function getDefinitionState(tokenState) {
  var definitionState = void 0;

  forEachState(tokenState, function (state) {
    switch (state.kind) {
      case 'Query':
      case 'ShortQuery':
      case 'Mutation':
      case 'Subscription':
      case 'FragmentDefinition':
        definitionState = state;
        break;
    }
  });

  return definitionState;
}

// Gets the field definition given a type and field name
/**
 *  Copyright (c) Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the license found in the
 *  LICENSE file in the root directory of this source tree.
 *
 *  
 */

function getFieldDef(schema, type, fieldName) {
  if (fieldName === _introspection.SchemaMetaFieldDef.name && schema.getQueryType() === type) {
    return _introspection.SchemaMetaFieldDef;
  }
  if (fieldName === _introspection.TypeMetaFieldDef.name && schema.getQueryType() === type) {
    return _introspection.TypeMetaFieldDef;
  }
  if (fieldName === _introspection.TypeNameMetaFieldDef.name && (0, _graphql.isCompositeType)(type)) {
    return _introspection.TypeNameMetaFieldDef;
  }
  if (type.getFields && typeof type.getFields === 'function') {
    return type.getFields()[fieldName];
  }

  return null;
}

// Utility for iterating through a CodeMirror parse state stack bottom-up.
function forEachState(stack, fn) {
  var reverseStateStack = [];
  var state = stack;
  while (state && state.kind) {
    reverseStateStack.push(state);
    state = state.prevState;
  }
  for (var i = reverseStateStack.length - 1; i >= 0; i--) {
    fn(reverseStateStack[i]);
  }
}

function objectValues(object) {
  var keys = Object.keys(object);
  var len = keys.length;
  var values = new Array(len);
  for (var i = 0; i < len; ++i) {
    values[i] = object[keys[i]];
  }
  return values;
}

// Create the expected hint response given a possible list and a token
function hintList(token, list) {
  return filterAndSortList(list, normalizeText(token.string));
}

// Given a list of hint entries and currently typed text, sort and filter to
// provide a concise list.
function filterAndSortList(list, text) {
  if (!text) {
    return filterNonEmpty(list, function (entry) {
      return !entry.isDeprecated;
    });
  }

  var byProximity = list.map(function (entry) {
    return {
      proximity: getProximity(normalizeText(entry.label), text),
      entry: entry
    };
  });

  var conciseMatches = filterNonEmpty(filterNonEmpty(byProximity, function (pair) {
    return pair.proximity <= 2;
  }), function (pair) {
    return !pair.entry.isDeprecated;
  });

  var sortedMatches = conciseMatches.sort(function (a, b) {
    return (a.entry.isDeprecated ? 1 : 0) - (b.entry.isDeprecated ? 1 : 0) || a.proximity - b.proximity || a.entry.label.length - b.entry.label.length;
  });

  return sortedMatches.map(function (pair) {
    return pair.entry;
  });
}

// Filters the array by the predicate, unless it results in an empty array,
// in which case return the original array.
function filterNonEmpty(array, predicate) {
  var filtered = array.filter(predicate);
  return filtered.length === 0 ? array : filtered;
}

function normalizeText(text) {
  return text.toLowerCase().replace(/\W/g, '');
}

// Determine a numeric proximity for a suggestion based on current text.
function getProximity(suggestion, text) {
  // start with lexical distance
  var proximity = lexicalDistance(text, suggestion);
  if (suggestion.length > text.length) {
    // do not penalize long suggestions.
    proximity -= suggestion.length - text.length - 1;
    // penalize suggestions not starting with this phrase
    proximity += suggestion.indexOf(text) === 0 ? 0 : 0.5;
  }
  return proximity;
}

/**
 * Computes the lexical distance between strings A and B.
 *
 * The "distance" between two strings is given by counting the minimum number
 * of edits needed to transform string A into string B. An edit can be an
 * insertion, deletion, or substitution of a single character, or a swap of two
 * adjacent characters.
 *
 * This distance can be useful for detecting typos in input or sorting
 *
 * @param {string} a
 * @param {string} b
 * @return {int} distance in number of edits
 */
function lexicalDistance(a, b) {
  var i = void 0;
  var j = void 0;
  var d = [];
  var aLength = a.length;
  var bLength = b.length;

  for (i = 0; i <= aLength; i++) {
    d[i] = [i];
  }

  for (j = 1; j <= bLength; j++) {
    d[0][j] = j;
  }

  for (i = 1; i <= aLength; i++) {
    for (j = 1; j <= bLength; j++) {
      var cost = a[i - 1] === b[j - 1] ? 0 : 1;

      d[i][j] = Math.min(d[i - 1][j] + 1, d[i][j - 1] + 1, d[i - 1][j - 1] + cost);

      if (i > 1 && j > 1 && a[i - 1] === b[j - 2] && a[i - 2] === b[j - 1]) {
        d[i][j] = Math.min(d[i][j], d[i - 2][j - 2] + cost);
      }
    }
  }

  return d[aLength][bLength];
}
},{"graphql":95,"graphql/type/introspection":118}],72:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; }; /**
                                                                                                                                                                                                                                                                   *  Copyright (c) Facebook, Inc.
                                                                                                                                                                                                                                                                   *  All rights reserved.
                                                                                                                                                                                                                                                                   *
                                                                                                                                                                                                                                                                   *  This source code is licensed under the license found in the
                                                                                                                                                                                                                                                                   *  LICENSE file in the root directory of this source tree.
                                                                                                                                                                                                                                                                   *
                                                                                                                                                                                                                                                                   *  
                                                                                                                                                                                                                                                                   */

exports.getAutocompleteSuggestions = getAutocompleteSuggestions;

var _graphql = require('graphql');

var _graphqlLanguageServiceParser = require('graphql-language-service-parser');

var _autocompleteUtils = require('./autocompleteUtils');

/**
 * Given GraphQLSchema, queryText, and context of the current position within
 * the source text, provide a list of typeahead entries.
 */
function getAutocompleteSuggestions(schema, queryText, cursor, contextToken) {
  var token = contextToken || getTokenAtPosition(queryText, cursor);

  var state = token.state.kind === 'Invalid' ? token.state.prevState : token.state;

  // relieve flow errors by checking if `state` exists
  if (!state) {
    return [];
  }

  var kind = state.kind;
  var step = state.step;
  var typeInfo = getTypeInfo(schema, token.state);

  // Definition kinds
  if (kind === 'Document') {
    return (0, _autocompleteUtils.hintList)(token, [{ label: 'query' }, { label: 'mutation' }, { label: 'subscription' }, { label: 'fragment' }, { label: '{' }]);
  }

  // Field names
  if (kind === 'SelectionSet' || kind === 'Field' || kind === 'AliasedField') {
    return getSuggestionsForFieldNames(token, typeInfo, schema);
  }

  // Argument names
  if (kind === 'Arguments' || kind === 'Argument' && step === 0) {
    var argDefs = typeInfo.argDefs;
    if (argDefs) {
      return (0, _autocompleteUtils.hintList)(token, argDefs.map(function (argDef) {
        return {
          label: argDef.name,
          detail: String(argDef.type),
          documentation: argDef.description
        };
      }));
    }
  }

  // Input Object fields
  if (kind === 'ObjectValue' || kind === 'ObjectField' && step === 0) {
    if (typeInfo.objectFieldDefs) {
      var objectFields = (0, _autocompleteUtils.objectValues)(typeInfo.objectFieldDefs);
      return (0, _autocompleteUtils.hintList)(token, objectFields.map(function (field) {
        return {
          label: field.name,
          detail: String(field.type),
          documentation: field.description
        };
      }));
    }
  }

  // Input values: Enum and Boolean
  if (kind === 'EnumValue' || kind === 'ListValue' && step === 1 || kind === 'ObjectField' && step === 2 || kind === 'Argument' && step === 2) {
    return getSuggestionsForInputValues(token, typeInfo);
  }

  // Fragment type conditions
  if (kind === 'TypeCondition' && step === 1 || kind === 'NamedType' && state.prevState != null && state.prevState.kind === 'TypeCondition') {
    return getSuggestionsForFragmentTypeConditions(token, typeInfo, schema);
  }

  // Fragment spread names
  if (kind === 'FragmentSpread' && step === 1) {
    return getSuggestionsForFragmentSpread(token, typeInfo, schema, queryText);
  }

  // Variable definition types
  if (kind === 'VariableDefinition' && step === 2 || kind === 'ListType' && step === 1 || kind === 'NamedType' && state.prevState && (state.prevState.kind === 'VariableDefinition' || state.prevState.kind === 'ListType')) {
    return getSuggestionsForVariableDefinition(token, schema);
  }

  // Directive names
  if (kind === 'Directive') {
    return getSuggestionsForDirective(token, state, schema);
  }

  return [];
}

// Helper functions to get suggestions for each kinds
function getSuggestionsForFieldNames(token, typeInfo, schema) {
  if (typeInfo.parentType) {
    var parentType = typeInfo.parentType;
    var fields = parentType.getFields instanceof Function ? (0, _autocompleteUtils.objectValues)(parentType.getFields()) : [];
    if ((0, _graphql.isAbstractType)(parentType)) {
      fields.push(_graphql.TypeNameMetaFieldDef);
    }
    if (parentType === schema.getQueryType()) {
      fields.push(_graphql.SchemaMetaFieldDef, _graphql.TypeMetaFieldDef);
    }
    return (0, _autocompleteUtils.hintList)(token, fields.map(function (field) {
      return {
        label: field.name,
        detail: String(field.type),
        documentation: field.description,
        isDeprecated: field.isDeprecated,
        deprecationReason: field.deprecationReason
      };
    }));
  }
  return [];
}

function getSuggestionsForInputValues(token, typeInfo) {
  var namedInputType = (0, _graphql.getNamedType)(typeInfo.inputType);
  if (namedInputType instanceof _graphql.GraphQLEnumType) {
    var values = namedInputType.getValues();
    return (0, _autocompleteUtils.hintList)(token, values.map(function (value) {
      return {
        label: value.name,
        detail: String(namedInputType),
        documentation: value.description,
        isDeprecated: value.isDeprecated,
        deprecationReason: value.deprecationReason
      };
    }));
  } else if (namedInputType === _graphql.GraphQLBoolean) {
    return (0, _autocompleteUtils.hintList)(token, [{
      label: 'true',
      detail: String(_graphql.GraphQLBoolean),
      documentation: 'Not false.'
    }, {
      label: 'false',
      detail: String(_graphql.GraphQLBoolean),
      documentation: 'Not true.'
    }]);
  }

  return [];
}

function getSuggestionsForFragmentTypeConditions(token, typeInfo, schema) {
  var possibleTypes = void 0;
  if (typeInfo.parentType) {
    if ((0, _graphql.isAbstractType)(typeInfo.parentType)) {
      var abstractType = (0, _graphql.assertAbstractType)(typeInfo.parentType);
      // Collect both the possible Object types as well as the interfaces
      // they implement.
      var possibleObjTypes = schema.getPossibleTypes(abstractType);
      var possibleIfaceMap = Object.create(null);
      possibleObjTypes.forEach(function (type) {
        type.getInterfaces().forEach(function (iface) {
          possibleIfaceMap[iface.name] = iface;
        });
      });
      possibleTypes = possibleObjTypes.concat((0, _autocompleteUtils.objectValues)(possibleIfaceMap));
    } else {
      // The parent type is a non-abstract Object type, so the only possible
      // type that can be used is that same type.
      possibleTypes = [typeInfo.parentType];
    }
  } else {
    var typeMap = schema.getTypeMap();
    possibleTypes = (0, _autocompleteUtils.objectValues)(typeMap).filter(_graphql.isCompositeType);
  }
  return (0, _autocompleteUtils.hintList)(token, possibleTypes.map(function (type) {
    var namedType = (0, _graphql.getNamedType)(type);
    return {
      label: String(type),
      documentation: namedType && namedType.description || ''
    };
  }));
}

function getSuggestionsForFragmentSpread(token, typeInfo, schema, queryText) {
  var typeMap = schema.getTypeMap();
  var defState = (0, _autocompleteUtils.getDefinitionState)(token.state);
  var fragments = getFragmentDefinitions(queryText);

  // Filter down to only the fragments which may exist here.
  var relevantFrags = fragments.filter(function (frag) {
    return (
      // Only include fragments with known types.
      typeMap[frag.typeCondition.name.value] &&
      // Only include fragments which are not cyclic.
      !(defState && defState.kind === 'FragmentDefinition' && defState.name === frag.name.value) &&
      // Only include fragments which could possibly be spread here.
      (0, _graphql.isCompositeType)(typeInfo.parentType) && (0, _graphql.isCompositeType)(typeMap[frag.typeCondition.name.value]) && (0, _graphql.doTypesOverlap)(schema, typeInfo.parentType, typeMap[frag.typeCondition.name.value])
    );
  });

  return (0, _autocompleteUtils.hintList)(token, relevantFrags.map(function (frag) {
    return {
      label: frag.name.value,
      detail: String(typeMap[frag.typeCondition.name.value]),
      documentation: 'fragment ' + frag.name.value + ' on ' + frag.typeCondition.name.value
    };
  }));
}

function getFragmentDefinitions(queryText) {
  var fragmentDefs = [];
  runOnlineParser(queryText, function (_, state) {
    if (state.kind === 'FragmentDefinition' && state.name && state.type) {
      fragmentDefs.push({
        kind: 'FragmentDefinition',
        name: {
          kind: 'Name',
          value: state.name
        },
        selectionSet: {
          kind: 'SelectionSet',
          selections: []
        },
        typeCondition: {
          kind: 'NamedType',
          name: {
            kind: 'Name',
            value: state.type
          }
        }
      });
    }
  });

  return fragmentDefs;
}

function getSuggestionsForVariableDefinition(token, schema) {
  var inputTypeMap = schema.getTypeMap();
  var inputTypes = (0, _autocompleteUtils.objectValues)(inputTypeMap).filter(_graphql.isInputType);
  return (0, _autocompleteUtils.hintList)(token, inputTypes.map(function (type) {
    return {
      label: type.name,
      documentation: type.description
    };
  }));
}

function getSuggestionsForDirective(token, state, schema) {
  if (state.prevState && state.prevState.kind) {
    var directives = schema.getDirectives().filter(function (directive) {
      return canUseDirective(state.prevState, directive);
    });
    return (0, _autocompleteUtils.hintList)(token, directives.map(function (directive) {
      return {
        label: directive.name,
        documentation: directive.description || ''
      };
    }));
  }
  return [];
}

function getTokenAtPosition(queryText, cursor) {
  var styleAtCursor = null;
  var stateAtCursor = null;
  var stringAtCursor = null;
  var token = runOnlineParser(queryText, function (stream, state, style, index) {
    if (index === cursor.line) {
      if (stream.getCurrentPosition() >= cursor.character) {
        styleAtCursor = style;
        stateAtCursor = _extends({}, state);
        stringAtCursor = stream.current();
        return 'BREAK';
      }
    }
  });

  // Return the state/style of parsed token in case those at cursor aren't
  // available.
  return {
    start: token.start,
    end: token.end,
    string: stringAtCursor || token.string,
    state: stateAtCursor || token.state,
    style: styleAtCursor || token.style
  };
}

/**
 * Provides an utility function to parse a given query text and construct a
 * `token` context object.
 * A token context provides useful information about the token/style that
 * CharacterStream currently possesses, as well as the end state and style
 * of the token.
 */


function runOnlineParser(queryText, callback) {
  var lines = queryText.split('\n');
  var parser = (0, _graphqlLanguageServiceParser.onlineParser)();
  var state = parser.startState();
  var style = '';

  var stream = new _graphqlLanguageServiceParser.CharacterStream('');

  for (var i = 0; i < lines.length; i++) {
    stream = new _graphqlLanguageServiceParser.CharacterStream(lines[i]);
    while (!stream.eol()) {
      style = parser.token(stream, state);
      var code = callback(stream, state, style, i);
      if (code === 'BREAK') {
        break;
      }
    }

    // Above while loop won't run if there is an empty line.
    // Run the callback one more time to catch this.
    callback(stream, state, style, i);

    if (!state.kind) {
      state = parser.startState();
    }
  }

  return {
    start: stream.getStartOfToken(),
    end: stream.getCurrentPosition(),
    string: stream.current(),
    state: state,
    style: style
  };
}

function canUseDirective(state, directive) {
  if (!state || !state.kind) {
    return false;
  }
  var kind = state.kind;
  var locations = directive.locations;
  switch (kind) {
    case 'Query':
      return locations.indexOf('QUERY') !== -1;
    case 'Mutation':
      return locations.indexOf('MUTATION') !== -1;
    case 'Subscription':
      return locations.indexOf('SUBSCRIPTION') !== -1;
    case 'Field':
    case 'AliasedField':
      return locations.indexOf('FIELD') !== -1;
    case 'FragmentDefinition':
      return locations.indexOf('FRAGMENT_DEFINITION') !== -1;
    case 'FragmentSpread':
      return locations.indexOf('FRAGMENT_SPREAD') !== -1;
    case 'InlineFragment':
      return locations.indexOf('INLINE_FRAGMENT') !== -1;

    // Schema Definitions
    case 'SchemaDef':
      return locations.indexOf('SCHEMA') !== -1;
    case 'ScalarDef':
      return locations.indexOf('SCALAR') !== -1;
    case 'ObjectTypeDef':
      return locations.indexOf('OBJECT') !== -1;
    case 'FieldDef':
      return locations.indexOf('FIELD_DEFINITION') !== -1;
    case 'InterfaceDef':
      return locations.indexOf('INTERFACE') !== -1;
    case 'UnionDef':
      return locations.indexOf('UNION') !== -1;
    case 'EnumDef':
      return locations.indexOf('ENUM') !== -1;
    case 'EnumValue':
      return locations.indexOf('ENUM_VALUE') !== -1;
    case 'InputDef':
      return locations.indexOf('INPUT_OBJECT') !== -1;
    case 'InputValueDef':
      var prevStateKind = state.prevState && state.prevState.kind;
      switch (prevStateKind) {
        case 'ArgumentsDef':
          return locations.indexOf('ARGUMENT_DEFINITION') !== -1;
        case 'InputDef':
          return locations.indexOf('INPUT_FIELD_DEFINITION') !== -1;
      }
  }
  return false;
}

// Utility for collecting rich type information given any token's state
// from the graphql-mode parser.
function getTypeInfo(schema, tokenState) {
  var argDef = void 0;
  var argDefs = void 0;
  var directiveDef = void 0;
  var enumValue = void 0;
  var fieldDef = void 0;
  var inputType = void 0;
  var objectFieldDefs = void 0;
  var parentType = void 0;
  var type = void 0;

  (0, _autocompleteUtils.forEachState)(tokenState, function (state) {
    switch (state.kind) {
      case 'Query':
      case 'ShortQuery':
        type = schema.getQueryType();
        break;
      case 'Mutation':
        type = schema.getMutationType();
        break;
      case 'Subscription':
        type = schema.getSubscriptionType();
        break;
      case 'InlineFragment':
      case 'FragmentDefinition':
        if (state.type) {
          type = schema.getType(state.type);
        }
        break;
      case 'Field':
      case 'AliasedField':
        if (!type || !state.name) {
          fieldDef = null;
        } else {
          fieldDef = parentType ? (0, _autocompleteUtils.getFieldDef)(schema, parentType, state.name) : null;
          type = fieldDef ? fieldDef.type : null;
        }
        break;
      case 'SelectionSet':
        parentType = (0, _graphql.getNamedType)(type);
        break;
      case 'Directive':
        directiveDef = state.name ? schema.getDirective(state.name) : null;
        break;
      case 'Arguments':
        if (!state.prevState) {
          argDefs = null;
        } else {
          switch (state.prevState.kind) {
            case 'Field':
              argDefs = fieldDef && fieldDef.args;
              break;
            case 'Directive':
              argDefs = directiveDef && directiveDef.args;
              break;
            case 'AliasedField':
              var name = state.prevState && state.prevState.name;
              if (!name) {
                argDefs = null;
                break;
              }
              var field = parentType ? (0, _autocompleteUtils.getFieldDef)(schema, parentType, name) : null;
              if (!field) {
                argDefs = null;
                break;
              }
              argDefs = field.args;
              break;
            default:
              argDefs = null;
              break;
          }
        }
        break;
      case 'Argument':
        if (argDefs) {
          for (var i = 0; i < argDefs.length; i++) {
            if (argDefs[i].name === state.name) {
              argDef = argDefs[i];
              break;
            }
          }
        }
        inputType = argDef && argDef.type;
        break;
      case 'EnumValue':
        var enumType = (0, _graphql.getNamedType)(inputType);
        enumValue = enumType instanceof _graphql.GraphQLEnumType ? find(enumType.getValues(), function (val) {
          return val.value === state.name;
        }) : null;
        break;
      case 'ListValue':
        var nullableType = (0, _graphql.getNullableType)(inputType);
        inputType = nullableType instanceof _graphql.GraphQLList ? nullableType.ofType : null;
        break;
      case 'ObjectValue':
        var objectType = (0, _graphql.getNamedType)(inputType);
        objectFieldDefs = objectType instanceof _graphql.GraphQLInputObjectType ? objectType.getFields() : null;
        break;
      case 'ObjectField':
        var objectField = state.name && objectFieldDefs ? objectFieldDefs[state.name] : null;
        inputType = objectField && objectField.type;
        break;
      case 'NamedType':
        if (state.name) {
          type = schema.getType(state.name);
        }
        break;
    }
  });

  return {
    argDef: argDef,
    argDefs: argDefs,
    directiveDef: directiveDef,
    enumValue: enumValue,
    fieldDef: fieldDef,
    inputType: inputType,
    objectFieldDefs: objectFieldDefs,
    parentType: parentType,
    type: type
  };
}

// Returns the first item in the array which causes predicate to return truthy.
function find(array, predicate) {
  for (var i = 0; i < array.length; i++) {
    if (predicate(array[i])) {
      return array[i];
    }
  }
  return null;
}
},{"./autocompleteUtils":71,"graphql":95,"graphql-language-service-parser":80}],73:[function(require,module,exports){
(function (process){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.LANGUAGE = undefined;
exports.getDefinitionQueryResultForFragmentSpread = getDefinitionQueryResultForFragmentSpread;
exports.getDefinitionQueryResultForDefinitionNode = getDefinitionQueryResultForDefinitionNode;

var _graphqlLanguageServiceUtils = require('graphql-language-service-utils');

var _assert = require('assert');

var _assert2 = _interopRequireDefault(_assert);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

/**
 *  Copyright (c) Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the license found in the
 *  LICENSE file in the root directory of this source tree.
 *
 *  
 */

var LANGUAGE = exports.LANGUAGE = 'GraphQL';

function getRange(text, node) {
  var location = node.loc;
  (0, _assert2.default)(location, 'Expected ASTNode to have a location.');
  return (0, _graphqlLanguageServiceUtils.locToRange)(text, location);
}

function getPosition(text, node) {
  var location = node.loc;
  (0, _assert2.default)(location, 'Expected ASTNode to have a location.');
  return (0, _graphqlLanguageServiceUtils.offsetToPosition)(text, location.start);
}

function getDefinitionQueryResultForFragmentSpread(text, fragment, dependencies) {
  var name, defNodes, definitions;
  return regeneratorRuntime.async(function getDefinitionQueryResultForFragmentSpread$(_context) {
    while (1) {
      switch (_context.prev = _context.next) {
        case 0:
          name = fragment.name.value;
          defNodes = dependencies.filter(function (_ref) {
            var definition = _ref.definition;
            return definition.name.value === name;
          });

          if (!(defNodes.length === 0)) {
            _context.next = 5;
            break;
          }

          process.stderr.write('Definition not found for GraphQL fragment ' + name);
          return _context.abrupt('return', { queryRange: [], definitions: [] });

        case 5:
          definitions = defNodes.map(function (_ref2) {
            var filePath = _ref2.filePath,
                content = _ref2.content,
                definition = _ref2.definition;
            return getDefinitionForFragmentDefinition(filePath || '', content, definition);
          });
          return _context.abrupt('return', {
            definitions: definitions,
            queryRange: definitions.map(function (_) {
              return getRange(text, fragment);
            })
          });

        case 7:
        case 'end':
          return _context.stop();
      }
    }
  }, null, this);
}

function getDefinitionQueryResultForDefinitionNode(path, text, definition) {
  return {
    definitions: [getDefinitionForFragmentDefinition(path, text, definition)],
    queryRange: definition.name ? [getRange(text, definition.name)] : []
  };
}

function getDefinitionForFragmentDefinition(path, text, definition) {
  var name = definition.name;
  (0, _assert2.default)(name, 'Expected ASTNode to have a Name.');
  return {
    path: path,
    position: getPosition(text, name),
    range: getRange(text, definition),
    name: name.value || '',
    language: LANGUAGE,
    // This is a file inside the project root, good enough for now
    projectRoot: path
  };
}
}).call(this,require('_process'))
},{"_process":229,"assert":35,"graphql-language-service-utils":84}],74:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.SEVERITY = undefined;
exports.getDiagnostics = getDiagnostics;

var _assert = require('assert');

var _assert2 = _interopRequireDefault(_assert);

var _graphql = require('graphql');

var _graphqlLanguageServiceParser = require('graphql-language-service-parser');

var _graphqlLanguageServiceUtils = require('graphql-language-service-utils');

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

/**
 *  Copyright (c) Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the license found in the
 *  LICENSE file in the root directory of this source tree.
 *
 *  
 */

var SEVERITY = exports.SEVERITY = {
  ERROR: 1,
  WARNING: 2,
  INFORMATION: 3,
  HINT: 4
};

function getDiagnostics(queryText) {
  var schema = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : null;
  var customRules = arguments[2];

  var ast = null;
  try {
    ast = (0, _graphql.parse)(queryText);
  } catch (error) {
    var range = getRange(error.locations[0], queryText);

    return [{
      severity: SEVERITY.ERROR,
      message: error.message,
      source: 'GraphQL: Syntax',
      range: range
    }];
  }

  // We cannot validate the query unless a schema is provided.
  if (!schema) {
    return [];
  }

  var validationErrorAnnotations = mapCat((0, _graphqlLanguageServiceUtils.validateWithCustomRules)(schema, ast, customRules), function (error) {
    return annotations(error, SEVERITY.ERROR, 'Validation');
  });
  // Note: findDeprecatedUsages was added in graphql@0.9.0, but we want to
  // support older versions of graphql-js.
  var deprecationWarningAnnotations = !_graphql.findDeprecatedUsages ? [] : mapCat((0, _graphql.findDeprecatedUsages)(schema, ast), function (error) {
    return annotations(error, SEVERITY.WARNING, 'Deprecation');
  });
  return validationErrorAnnotations.concat(deprecationWarningAnnotations);
}

// General utility for map-cating (aka flat-mapping).
function mapCat(array, mapper) {
  return Array.prototype.concat.apply([], array.map(mapper));
}

function annotations(error, severity, type) {
  if (!error.nodes) {
    return [];
  }
  return error.nodes.map(function (node) {
    var highlightNode = node.kind !== 'Variable' && node.name ? node.name : node.variable ? node.variable : node;

    (0, _assert2.default)(error.locations, 'GraphQL validation error requires locations.');
    var loc = error.locations[0];
    var highlightLoc = getLocation(highlightNode);
    var end = loc.column + (highlightLoc.end - highlightLoc.start);
    return {
      source: 'GraphQL: ' + type,
      message: error.message,
      severity: severity,
      range: new _graphqlLanguageServiceUtils.Range(new _graphqlLanguageServiceUtils.Position(loc.line - 1, loc.column - 1), new _graphqlLanguageServiceUtils.Position(loc.line - 1, end))
    };
  });
}

/**
 * Get location info from a node in a type-safe way.
 *
 * The only way a node could not have a location is if we initialized the parser
 * (and therefore the lexer) with the `noLocation` option, but we always
 * call `parse` without options above.
 */
function getLocation(node) {
  var typeCastedNode = node;
  var location = typeCastedNode.loc;
  (0, _assert2.default)(location, 'Expected ASTNode to have a location.');
  return location;
}

function getRange(location, queryText) {
  var parser = (0, _graphqlLanguageServiceParser.onlineParser)();
  var state = parser.startState();
  var lines = queryText.split('\n');

  (0, _assert2.default)(lines.length >= location.line, 'Query text must have more lines than where the error happened');

  var stream = null;

  for (var i = 0; i < location.line; i++) {
    stream = new _graphqlLanguageServiceParser.CharacterStream(lines[i]);
    while (!stream.eol()) {
      var style = parser.token(stream, state);
      if (style === 'invalidchar') {
        break;
      }
    }
  }

  (0, _assert2.default)(stream, 'Expected Parser stream to be available.');

  var line = location.line - 1;
  var start = stream.getStartOfToken();
  var end = stream.getCurrentPosition();

  return new _graphqlLanguageServiceUtils.Range(new _graphqlLanguageServiceUtils.Position(line, start), new _graphqlLanguageServiceUtils.Position(line, end));
}
},{"assert":35,"graphql":95,"graphql-language-service-parser":80,"graphql-language-service-utils":84}],75:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; }; /**
                                                                                                                                                                                                                                                                   *  Copyright (c) Facebook, Inc.
                                                                                                                                                                                                                                                                   *  All rights reserved.
                                                                                                                                                                                                                                                                   *
                                                                                                                                                                                                                                                                   *  This source code is licensed under the license found in the
                                                                                                                                                                                                                                                                   *  LICENSE file in the root directory of this source tree.
                                                                                                                                                                                                                                                                   *
                                                                                                                                                                                                                                                                   *  
                                                                                                                                                                                                                                                                   */

exports.getOutline = getOutline;

var _graphql = require('graphql');

var _kinds = require('graphql/language/kinds');

var _graphqlLanguageServiceUtils = require('graphql-language-service-utils');

var OUTLINEABLE_KINDS = {
  Field: true,
  OperationDefinition: true,
  Document: true,
  SelectionSet: true,
  Name: true,
  FragmentDefinition: true,
  FragmentSpread: true,
  InlineFragment: true
};

function getOutline(queryText) {
  var ast = void 0;
  try {
    ast = (0, _graphql.parse)(queryText);
  } catch (error) {
    return null;
  }

  var visitorFns = outlineTreeConverter(queryText);
  var outlineTrees = (0, _graphql.visit)(ast, {
    leave: function leave(node) {
      if (OUTLINEABLE_KINDS[node.kind] && visitorFns[node.kind]) {
        return visitorFns[node.kind](node);
      }
      return null;
    }
  });
  return { outlineTrees: outlineTrees };
}

function outlineTreeConverter(docText) {
  var meta = function meta(node) {
    return {
      representativeName: node.name,
      startPosition: (0, _graphqlLanguageServiceUtils.offsetToPosition)(docText, node.loc.start),
      endPosition: (0, _graphqlLanguageServiceUtils.offsetToPosition)(docText, node.loc.end),
      children: node.selectionSet || []
    };
  };
  return {
    Field: function Field(node) {
      var tokenizedText = node.alias ? [buildToken('plain', node.alias), buildToken('plain', ': ')] : [];
      tokenizedText.push(buildToken('plain', node.name));
      return _extends({ tokenizedText: tokenizedText }, meta(node));
    },
    OperationDefinition: function OperationDefinition(node) {
      return _extends({
        tokenizedText: [buildToken('keyword', node.operation), buildToken('whitespace', ' '), buildToken('class-name', node.name)]
      }, meta(node));
    },
    Document: function Document(node) {
      return node.definitions;
    },
    SelectionSet: function SelectionSet(node) {
      return concatMap(node.selections, function (child) {
        return child.kind === _kinds.INLINE_FRAGMENT ? child.selectionSet : child;
      });
    },
    Name: function Name(node) {
      return node.value;
    },
    FragmentDefinition: function FragmentDefinition(node) {
      return _extends({
        tokenizedText: [buildToken('keyword', 'fragment'), buildToken('whitespace', ' '), buildToken('class-name', node.name)]
      }, meta(node));
    },
    FragmentSpread: function FragmentSpread(node) {
      return _extends({
        tokenizedText: [buildToken('plain', '...'), buildToken('class-name', node.name)]
      }, meta(node));
    },
    InlineFragment: function InlineFragment(node) {
      return node.selectionSet;
    }
  };
}

function buildToken(kind, value) {
  return { kind: kind, value: value };
}

function concatMap(arr, fn) {
  var res = [];
  for (var i = 0; i < arr.length; i++) {
    var x = fn(arr[i], i);
    if (Array.isArray(x)) {
      res.push.apply(res, x);
    } else {
      res.push(x);
    }
  }
  return res;
}
},{"graphql":95,"graphql-language-service-utils":84,"graphql/language/kinds":105}],76:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _autocompleteUtils = require('./autocompleteUtils');

Object.defineProperty(exports, 'getDefinitionState', {
  enumerable: true,
  get: function get() {
    return _autocompleteUtils.getDefinitionState;
  }
});
Object.defineProperty(exports, 'getFieldDef', {
  enumerable: true,
  get: function get() {
    return _autocompleteUtils.getFieldDef;
  }
});
Object.defineProperty(exports, 'forEachState', {
  enumerable: true,
  get: function get() {
    return _autocompleteUtils.forEachState;
  }
});
Object.defineProperty(exports, 'objectValues', {
  enumerable: true,
  get: function get() {
    return _autocompleteUtils.objectValues;
  }
});
Object.defineProperty(exports, 'hintList', {
  enumerable: true,
  get: function get() {
    return _autocompleteUtils.hintList;
  }
});

var _getAutocompleteSuggestions = require('./getAutocompleteSuggestions');

Object.defineProperty(exports, 'getAutocompleteSuggestions', {
  enumerable: true,
  get: function get() {
    return _getAutocompleteSuggestions.getAutocompleteSuggestions;
  }
});

var _getDefinition = require('./getDefinition');

Object.defineProperty(exports, 'LANGUAGE', {
  enumerable: true,
  get: function get() {
    return _getDefinition.LANGUAGE;
  }
});
Object.defineProperty(exports, 'getDefinitionQueryResultForFragmentSpread', {
  enumerable: true,
  get: function get() {
    return _getDefinition.getDefinitionQueryResultForFragmentSpread;
  }
});
Object.defineProperty(exports, 'getDefinitionQueryResultForDefinitionNode', {
  enumerable: true,
  get: function get() {
    return _getDefinition.getDefinitionQueryResultForDefinitionNode;
  }
});

var _getDiagnostics = require('./getDiagnostics');

Object.defineProperty(exports, 'getDiagnostics', {
  enumerable: true,
  get: function get() {
    return _getDiagnostics.getDiagnostics;
  }
});

var _getOutline = require('./getOutline');

Object.defineProperty(exports, 'getOutline', {
  enumerable: true,
  get: function get() {
    return _getOutline.getOutline;
  }
});

var _GraphQLLanguageService = require('./GraphQLLanguageService');

Object.defineProperty(exports, 'GraphQLLanguageService', {
  enumerable: true,
  get: function get() {
    return _GraphQLLanguageService.GraphQLLanguageService;
  }
});
},{"./GraphQLLanguageService":70,"./autocompleteUtils":71,"./getAutocompleteSuggestions":72,"./getDefinition":73,"./getDiagnostics":74,"./getOutline":75}],77:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

var CharacterStream = function () {
  function CharacterStream(sourceText) {
    var _this = this;

    _classCallCheck(this, CharacterStream);

    this.getStartOfToken = function () {
      return _this._start;
    };

    this.getCurrentPosition = function () {
      return _this._pos;
    };

    this.eol = function () {
      return _this._sourceText.length === _this._pos;
    };

    this.sol = function () {
      return _this._pos === 0;
    };

    this.peek = function () {
      return _this._sourceText.charAt(_this._pos) ? _this._sourceText.charAt(_this._pos) : null;
    };

    this.next = function () {
      var char = _this._sourceText.charAt(_this._pos);
      _this._pos++;
      return char;
    };

    this.eat = function (pattern) {
      var isMatched = _this._testNextCharacter(pattern);
      if (isMatched) {
        _this._start = _this._pos;
        _this._pos++;
        return _this._sourceText.charAt(_this._pos - 1);
      }
      return undefined;
    };

    this.eatWhile = function (match) {
      var isMatched = _this._testNextCharacter(match);
      var didEat = false;

      // If a match, treat the total upcoming matches as one token
      if (isMatched) {
        didEat = isMatched;
        _this._start = _this._pos;
      }

      while (isMatched) {
        _this._pos++;
        isMatched = _this._testNextCharacter(match);
        didEat = true;
      }

      return didEat;
    };

    this.eatSpace = function () {
      return _this.eatWhile(/[\s\u00a0]/);
    };

    this.skipToEnd = function () {
      _this._pos = _this._sourceText.length;
    };

    this.skipTo = function (position) {
      _this._pos = position;
    };

    this.match = function (pattern) {
      var consume = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : true;
      var caseFold = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;

      var token = null;
      var match = null;

      if (typeof pattern === 'string') {
        var regex = new RegExp(pattern, caseFold ? 'i' : 'g');
        match = regex.test(_this._sourceText.substr(_this._pos, pattern.length));
        token = pattern;
      } else if (pattern instanceof RegExp) {
        match = _this._sourceText.slice(_this._pos).match(pattern);
        token = match && match[0];
      }

      if (match != null) {
        if (typeof pattern === 'string' || match instanceof Array &&
        // String.match returns 'index' property, which flow fails to detect
        // for some reason. The below is a workaround, but an easier solution
        // is just checking if `match.index === 0`
        _this._sourceText.startsWith(match[0], _this._pos)) {
          if (consume) {
            _this._start = _this._pos;
            if (token && token.length) {
              _this._pos += token.length;
            }
          }
          return match;
        }
      }

      // No match available.
      return false;
    };

    this.backUp = function (num) {
      _this._pos -= num;
    };

    this.column = function () {
      return _this._pos;
    };

    this.indentation = function () {
      var match = _this._sourceText.match(/\s*/);
      var indent = 0;
      if (match && match.length === 0) {
        var whitespaces = match[0];
        var pos = 0;
        while (whitespaces.length > pos) {
          if (whitespaces.charCodeAt(pos) === 9) {
            indent += 2;
          } else {
            indent++;
          }
          pos++;
        }
      }

      return indent;
    };

    this.current = function () {
      return _this._sourceText.slice(_this._start, _this._pos);
    };

    this._start = 0;
    this._pos = 0;
    this._sourceText = sourceText;
  }

  CharacterStream.prototype._testNextCharacter = function _testNextCharacter(pattern) {
    var character = this._sourceText.charAt(this._pos);
    var isMatched = false;
    if (typeof pattern === 'string') {
      isMatched = character === pattern;
    } else {
      isMatched = pattern instanceof RegExp ? pattern.test(character) : pattern(character);
    }
    return isMatched;
  };

  return CharacterStream;
}(); /**
      *  Copyright (c) Facebook, Inc.
      *  All rights reserved.
      *
      *  This source code is licensed under the license found in the
      *  LICENSE file in the root directory of this source tree.
      *
      *  
      */

/**
 * CharacterStream implements a stream of character tokens given a source text.
 * The API design follows that of CodeMirror.StringStream.
 *
 * Required:
 *
 *      sourceText: (string), A raw GraphQL source text. Works best if a line
 *        is supplied.
 *
 */

exports.default = CharacterStream;
},{}],78:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.opt = opt;
exports.list = list;
exports.butNot = butNot;
exports.t = t;
exports.p = p;


// An optional rule.
function opt(ofRule) {
  return { ofRule: ofRule };
}

// A list of another rule.
/**
 *  Copyright (c) Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the license found in the
 *  LICENSE file in the root directory of this source tree.
 *
 *  
 */

// These functions help build matching rules for ParseRules.

function list(ofRule, separator) {
  return { ofRule: ofRule, isList: true, separator: separator };
}

// An constraint described as `but not` in the GraphQL spec.
function butNot(rule, exclusions) {
  var ruleMatch = rule.match;
  rule.match = function (token) {
    var check = false;
    if (ruleMatch) {
      check = ruleMatch(token);
    }
    return check && exclusions.every(function (exclusion) {
      return exclusion.match && !exclusion.match(token);
    });
  };
  return rule;
}

// Token of a kind
function t(kind, style) {
  return { style: style, match: function match(token) {
      return token.kind === kind;
    } };
}

// Punctuator
function p(value, style) {
  return {
    style: style || 'punctuation',
    match: function match(token) {
      return token.kind === 'Punctuation' && token.value === value;
    }
  };
}
},{}],79:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.ParseRules = exports.LexRules = exports.isIgnored = undefined;

var _RuleHelpers = require('./RuleHelpers');

/**
  * Whitespace tokens defined in GraphQL spec.
  */
/**
 *  Copyright (c) Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the license found in the
 *  LICENSE file in the root directory of this source tree.
 *
 *  
 */

var isIgnored = exports.isIgnored = function isIgnored(ch) {
  return ch === ' ' || ch === '\t' || ch === ',' || ch === '\n' || ch === '\r' || ch === '\uFEFF';
};

/**
 * The lexer rules. These are exactly as described by the spec.
 */
var LexRules = exports.LexRules = {
  // The Name token.
  Name: /^[_A-Za-z][_0-9A-Za-z]*/,

  // All Punctuation used in GraphQL
  Punctuation: /^(?:!|\$|\(|\)|\.\.\.|:|=|@|\[|]|\{|\||\})/,

  // Combines the IntValue and FloatValue tokens.
  Number: /^-?(?:0|(?:[1-9][0-9]*))(?:\.[0-9]*)?(?:[eE][+-]?[0-9]+)?/,

  // Note the closing quote is made optional as an IDE experience improvement.
  String: /^"(?:[^"\\]|\\(?:"|\/|\\|b|f|n|r|t|u[0-9a-fA-F]{4}))*"?/,

  // Comments consume entire lines.
  Comment: /^#.*/
};

/**
 * The parser rules. These are very close to, but not exactly the same as the
 * spec. Minor deviations allow for a simpler implementation. The resulting
 * parser can parse everything the spec declares possible.
 */
var ParseRules = exports.ParseRules = {
  Document: [(0, _RuleHelpers.list)('Definition')],
  Definition: function Definition(token) {
    switch (token.value) {
      case '{':
        return 'ShortQuery';
      case 'query':
        return 'Query';
      case 'mutation':
        return 'Mutation';
      case 'subscription':
        return 'Subscription';
      case 'fragment':
        return 'FragmentDefinition';
      case 'schema':
        return 'SchemaDef';
      case 'scalar':
        return 'ScalarDef';
      case 'type':
        return 'ObjectTypeDef';
      case 'interface':
        return 'InterfaceDef';
      case 'union':
        return 'UnionDef';
      case 'enum':
        return 'EnumDef';
      case 'input':
        return 'InputDef';
      case 'extend':
        return 'ExtendDef';
      case 'directive':
        return 'DirectiveDef';
    }
  },

  // Note: instead of "Operation", these rules have been separated out.
  ShortQuery: ['SelectionSet'],
  Query: [word('query'), (0, _RuleHelpers.opt)(name('def')), (0, _RuleHelpers.opt)('VariableDefinitions'), (0, _RuleHelpers.list)('Directive'), 'SelectionSet'],
  Mutation: [word('mutation'), (0, _RuleHelpers.opt)(name('def')), (0, _RuleHelpers.opt)('VariableDefinitions'), (0, _RuleHelpers.list)('Directive'), 'SelectionSet'],
  Subscription: [word('subscription'), (0, _RuleHelpers.opt)(name('def')), (0, _RuleHelpers.opt)('VariableDefinitions'), (0, _RuleHelpers.list)('Directive'), 'SelectionSet'],
  VariableDefinitions: [(0, _RuleHelpers.p)('('), (0, _RuleHelpers.list)('VariableDefinition'), (0, _RuleHelpers.p)(')')],
  VariableDefinition: ['Variable', (0, _RuleHelpers.p)(':'), 'Type', (0, _RuleHelpers.opt)('DefaultValue')],
  Variable: [(0, _RuleHelpers.p)('$', 'variable'), name('variable')],
  DefaultValue: [(0, _RuleHelpers.p)('='), 'Value'],
  SelectionSet: [(0, _RuleHelpers.p)('{'), (0, _RuleHelpers.list)('Selection'), (0, _RuleHelpers.p)('}')],
  Selection: function Selection(token, stream) {
    return token.value === '...' ? stream.match(/[\s\u00a0,]*(on\b|@|{)/, false) ? 'InlineFragment' : 'FragmentSpread' : stream.match(/[\s\u00a0,]*:/, false) ? 'AliasedField' : 'Field';
  },

  // Note: this minor deviation of "AliasedField" simplifies the lookahead.
  AliasedField: [name('property'), (0, _RuleHelpers.p)(':'), name('qualifier'), (0, _RuleHelpers.opt)('Arguments'), (0, _RuleHelpers.list)('Directive'), (0, _RuleHelpers.opt)('SelectionSet')],
  Field: [name('property'), (0, _RuleHelpers.opt)('Arguments'), (0, _RuleHelpers.list)('Directive'), (0, _RuleHelpers.opt)('SelectionSet')],
  Arguments: [(0, _RuleHelpers.p)('('), (0, _RuleHelpers.list)('Argument'), (0, _RuleHelpers.p)(')')],
  Argument: [name('attribute'), (0, _RuleHelpers.p)(':'), 'Value'],
  FragmentSpread: [(0, _RuleHelpers.p)('...'), name('def'), (0, _RuleHelpers.list)('Directive')],
  InlineFragment: [(0, _RuleHelpers.p)('...'), (0, _RuleHelpers.opt)('TypeCondition'), (0, _RuleHelpers.list)('Directive'), 'SelectionSet'],
  FragmentDefinition: [word('fragment'), (0, _RuleHelpers.opt)((0, _RuleHelpers.butNot)(name('def'), [word('on')])), 'TypeCondition', (0, _RuleHelpers.list)('Directive'), 'SelectionSet'],
  TypeCondition: [word('on'), 'NamedType'],
  // Variables could be parsed in cases where only Const is expected by spec.
  Value: function Value(token) {
    switch (token.kind) {
      case 'Number':
        return 'NumberValue';
      case 'String':
        return 'StringValue';
      case 'Punctuation':
        switch (token.value) {
          case '[':
            return 'ListValue';
          case '{':
            return 'ObjectValue';
          case '$':
            return 'Variable';
        }
        return null;
      case 'Name':
        switch (token.value) {
          case 'true':
          case 'false':
            return 'BooleanValue';
        }
        if (token.value === 'null') {
          return 'NullValue';
        }
        return 'EnumValue';
    }
  },

  NumberValue: [(0, _RuleHelpers.t)('Number', 'number')],
  StringValue: [(0, _RuleHelpers.t)('String', 'string')],
  BooleanValue: [(0, _RuleHelpers.t)('Name', 'builtin')],
  NullValue: [(0, _RuleHelpers.t)('Name', 'keyword')],
  EnumValue: [name('string-2')],
  ListValue: [(0, _RuleHelpers.p)('['), (0, _RuleHelpers.list)('Value'), (0, _RuleHelpers.p)(']')],
  ObjectValue: [(0, _RuleHelpers.p)('{'), (0, _RuleHelpers.list)('ObjectField'), (0, _RuleHelpers.p)('}')],
  ObjectField: [name('attribute'), (0, _RuleHelpers.p)(':'), 'Value'],
  Type: function Type(token) {
    return token.value === '[' ? 'ListType' : 'NonNullType';
  },

  // NonNullType has been merged into ListType to simplify.
  ListType: [(0, _RuleHelpers.p)('['), 'Type', (0, _RuleHelpers.p)(']'), (0, _RuleHelpers.opt)((0, _RuleHelpers.p)('!'))],
  NonNullType: ['NamedType', (0, _RuleHelpers.opt)((0, _RuleHelpers.p)('!'))],
  NamedType: [type('atom')],
  Directive: [(0, _RuleHelpers.p)('@', 'meta'), name('meta'), (0, _RuleHelpers.opt)('Arguments')],
  // GraphQL schema language
  SchemaDef: [word('schema'), (0, _RuleHelpers.list)('Directive'), (0, _RuleHelpers.p)('{'), (0, _RuleHelpers.list)('OperationTypeDef'), (0, _RuleHelpers.p)('}')],
  OperationTypeDef: [name('keyword'), (0, _RuleHelpers.p)(':'), name('atom')],
  ScalarDef: [word('scalar'), name('atom'), (0, _RuleHelpers.list)('Directive')],
  ObjectTypeDef: [word('type'), name('atom'), (0, _RuleHelpers.opt)('Implements'), (0, _RuleHelpers.list)('Directive'), (0, _RuleHelpers.p)('{'), (0, _RuleHelpers.list)('FieldDef'), (0, _RuleHelpers.p)('}')],
  Implements: [word('implements'), (0, _RuleHelpers.list)('NamedType')],
  FieldDef: [name('property'), (0, _RuleHelpers.opt)('ArgumentsDef'), (0, _RuleHelpers.p)(':'), 'Type', (0, _RuleHelpers.list)('Directive')],
  ArgumentsDef: [(0, _RuleHelpers.p)('('), (0, _RuleHelpers.list)('InputValueDef'), (0, _RuleHelpers.p)(')')],
  InputValueDef: [name('attribute'), (0, _RuleHelpers.p)(':'), 'Type', (0, _RuleHelpers.opt)('DefaultValue'), (0, _RuleHelpers.list)('Directive')],
  InterfaceDef: [word('interface'), name('atom'), (0, _RuleHelpers.list)('Directive'), (0, _RuleHelpers.p)('{'), (0, _RuleHelpers.list)('FieldDef'), (0, _RuleHelpers.p)('}')],
  UnionDef: [word('union'), name('atom'), (0, _RuleHelpers.list)('Directive'), (0, _RuleHelpers.p)('='), (0, _RuleHelpers.list)('UnionMember', (0, _RuleHelpers.p)('|'))],
  UnionMember: ['NamedType'],
  EnumDef: [word('enum'), name('atom'), (0, _RuleHelpers.list)('Directive'), (0, _RuleHelpers.p)('{'), (0, _RuleHelpers.list)('EnumValueDef'), (0, _RuleHelpers.p)('}')],
  EnumValueDef: [name('string-2'), (0, _RuleHelpers.list)('Directive')],
  InputDef: [word('input'), name('atom'), (0, _RuleHelpers.list)('Directive'), (0, _RuleHelpers.p)('{'), (0, _RuleHelpers.list)('InputValueDef'), (0, _RuleHelpers.p)('}')],
  ExtendDef: [word('extend'), 'ObjectTypeDef'],
  DirectiveDef: [word('directive'), (0, _RuleHelpers.p)('@', 'meta'), name('meta'), (0, _RuleHelpers.opt)('ArgumentsDef'), word('on'), (0, _RuleHelpers.list)('DirectiveLocation', (0, _RuleHelpers.p)('|'))],
  DirectiveLocation: [name('string-2')]
};

// A keyword Token.
function word(value) {
  return {
    style: 'keyword',
    match: function match(token) {
      return token.kind === 'Name' && token.value === value;
    }
  };
}

// A Name Token which will decorate the state with a `name`.
function name(style) {
  return {
    style: style,
    match: function match(token) {
      return token.kind === 'Name';
    },
    update: function update(state, token) {
      state.name = token.value;
    }
  };
}

// A Name Token which will decorate the previous state with a `type`.
function type(style) {
  return {
    style: style,
    match: function match(token) {
      return token.kind === 'Name';
    },
    update: function update(state, token) {
      if (state.prevState && state.prevState.prevState) {
        state.name = token.value;
        state.prevState.prevState.type = token.value;
      }
    }
  };
}
},{"./RuleHelpers":78}],80:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _CharacterStream = require('./CharacterStream');

Object.defineProperty(exports, 'CharacterStream', {
  enumerable: true,
  get: function get() {
    return _interopRequireDefault(_CharacterStream).default;
  }
});

var _Rules = require('./Rules');

Object.defineProperty(exports, 'LexRules', {
  enumerable: true,
  get: function get() {
    return _Rules.LexRules;
  }
});
Object.defineProperty(exports, 'ParseRules', {
  enumerable: true,
  get: function get() {
    return _Rules.ParseRules;
  }
});
Object.defineProperty(exports, 'isIgnored', {
  enumerable: true,
  get: function get() {
    return _Rules.isIgnored;
  }
});

var _RuleHelpers = require('./RuleHelpers');

Object.defineProperty(exports, 'butNot', {
  enumerable: true,
  get: function get() {
    return _RuleHelpers.butNot;
  }
});
Object.defineProperty(exports, 'list', {
  enumerable: true,
  get: function get() {
    return _RuleHelpers.list;
  }
});
Object.defineProperty(exports, 'opt', {
  enumerable: true,
  get: function get() {
    return _RuleHelpers.opt;
  }
});
Object.defineProperty(exports, 'p', {
  enumerable: true,
  get: function get() {
    return _RuleHelpers.p;
  }
});
Object.defineProperty(exports, 't', {
  enumerable: true,
  get: function get() {
    return _RuleHelpers.t;
  }
});

var _onlineParser = require('./onlineParser');

Object.defineProperty(exports, 'onlineParser', {
  enumerable: true,
  get: function get() {
    return _interopRequireDefault(_onlineParser).default;
  }
});

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
},{"./CharacterStream":77,"./RuleHelpers":78,"./Rules":79,"./onlineParser":81}],81:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; }; /**
                                                                                                                                                                                                                                                                   *  Copyright (c) Facebook, Inc.
                                                                                                                                                                                                                                                                   *  All rights reserved.
                                                                                                                                                                                                                                                                   *
                                                                                                                                                                                                                                                                   *  This source code is licensed under the license found in the
                                                                                                                                                                                                                                                                   *  LICENSE file in the root directory of this source tree.
                                                                                                                                                                                                                                                                   *
                                                                                                                                                                                                                                                                   *  
                                                                                                                                                                                                                                                                   */

/**
 * Builds an online immutable parser, designed to be used as part of a syntax
 * highlighting and code intelligence tools.
 *
 * Options:
 *
 *     eatWhitespace: (
 *       stream: Stream | CodeMirror.StringStream | CharacterStream
 *     ) => boolean
 *       Use CodeMirror API.
 *
 *     LexRules: { [name: string]: RegExp }, Includes `Punctuation`, `Comment`.
 *
 *     ParseRules: { [name: string]: Array<Rule> }, Includes `Document`.
 *
 *     editorConfig: { [name: string]: any }, Provides an editor-specific
 *       configurations set.
 *
 */

exports.default = onlineParser;

var _Rules = require('./Rules');

function onlineParser() {
  var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {
    eatWhitespace: function eatWhitespace(stream) {
      return stream.eatWhile(_Rules.isIgnored);
    },
    lexRules: _Rules.LexRules,
    parseRules: _Rules.ParseRules,
    editorConfig: {}
  };

  return {
    startState: function startState() {
      var initialState = {
        level: 0,
        step: 0,
        name: null,
        kind: null,
        type: null,
        rule: null,
        needsSeperator: false,
        prevState: null
      };
      pushRule(options.parseRules, initialState, 'Document');
      return initialState;
    },
    token: function token(stream, state) {
      return getToken(stream, state, options);
    }
  };
}

function getToken(stream, state, options) {
  var lexRules = options.lexRules,
      parseRules = options.parseRules,
      eatWhitespace = options.eatWhitespace,
      editorConfig = options.editorConfig;
  // Restore state after an empty-rule.

  if (state.rule && state.rule.length === 0) {
    popRule(state);
  } else if (state.needsAdvance) {
    state.needsAdvance = false;
    advanceRule(state, true);
  }

  // Remember initial indentation
  if (stream.sol()) {
    var tabSize = editorConfig && editorConfig.tabSize || 2;
    state.indentLevel = Math.floor(stream.indentation() / tabSize);
  }

  // Consume spaces and ignored characters
  if (eatWhitespace(stream)) {
    return 'ws';
  }

  // Get a matched token from the stream, using lex
  var token = lex(lexRules, stream);

  // If there's no matching token, skip ahead.
  if (!token) {
    stream.match(/\S+/);
    pushRule(SpecialParseRules, state, 'Invalid');
    return 'invalidchar';
  }

  // If the next token is a Comment, insert a Comment parsing rule.
  if (token.kind === 'Comment') {
    pushRule(SpecialParseRules, state, 'Comment');
    return 'comment';
  }

  // Save state before continuing.
  var backupState = assign({}, state);

  // Handle changes in expected indentation level
  if (token.kind === 'Punctuation') {
    if (/^[{([]/.test(token.value)) {
      // Push on the stack of levels one level deeper than the current level.
      state.levels = (state.levels || []).concat(state.indentLevel + 1);
    } else if (/^[})\]]/.test(token.value)) {
      // Pop from the stack of levels.
      // If the top of the stack is lower than the current level, lower the
      // current level to match.
      var levels = state.levels = (state.levels || []).slice(0, -1);
      if (state.indentLevel) {
        if (levels.length > 0 && levels[levels.length - 1] < state.indentLevel) {
          state.indentLevel = levels[levels.length - 1];
        }
      }
    }
  }

  while (state.rule) {
    // If this is a forking rule, determine what rule to use based on
    var expected = typeof state.rule === 'function' ? state.step === 0 ? state.rule(token, stream) : null : state.rule[state.step];

    // Separator between list elements if necessary.
    if (state.needsSeperator) {
      expected = expected && expected.separator;
    }

    if (expected) {
      // Un-wrap optional/list parseRules.
      if (expected.ofRule) {
        expected = expected.ofRule;
      }

      // A string represents a Rule
      if (typeof expected === 'string') {
        pushRule(parseRules, state, expected);
        continue;
      }

      // Otherwise, match a Terminal.
      if (expected.match && expected.match(token)) {
        if (expected.update) {
          expected.update(state, token);
        }

        // If this token was a punctuator, advance the parse rule, otherwise
        // mark the state to be advanced before the next token. This ensures
        // that tokens which can be appended to keep the appropriate state.
        if (token.kind === 'Punctuation') {
          advanceRule(state, true);
        } else {
          state.needsAdvance = true;
        }

        return expected.style;
      }
    }
    unsuccessful(state);
  }

  // The parser does not know how to interpret this token, do not affect state.
  assign(state, backupState);
  pushRule(SpecialParseRules, state, 'Invalid');
  return 'invalidchar';
}

// Utility function to assign from object to another object.
function assign(to, from) {
  var keys = Object.keys(from);
  for (var i = 0; i < keys.length; i++) {
    to[keys[i]] = from[keys[i]];
  }
  return to;
}

// A special rule set for parsing comment tokens.
var SpecialParseRules = {
  Invalid: [],
  Comment: []
};

// Push a new rule onto the state.
function pushRule(rules, state, ruleKind) {
  if (!rules[ruleKind]) {
    throw new TypeError('Unknown rule: ' + ruleKind);
  }
  state.prevState = _extends({}, state);
  state.kind = ruleKind;
  state.name = null;
  state.type = null;
  state.rule = rules[ruleKind];
  state.step = 0;
  state.needsSeperator = false;
}

// Pop the current rule from the state.
function popRule(state) {
  // Check if there's anything to pop
  if (!state.prevState) {
    return;
  }
  state.kind = state.prevState.kind;
  state.name = state.prevState.name;
  state.type = state.prevState.type;
  state.rule = state.prevState.rule;
  state.step = state.prevState.step;
  state.needsSeperator = state.prevState.needsSeperator;
  state.prevState = state.prevState.prevState;
}

// Advance the step of the current rule.
function advanceRule(state, successful) {
  // If this is advancing successfully and the current state is a list, give
  // it an opportunity to repeat itself.
  if (isList(state)) {
    if (state.rule && state.rule[state.step].separator) {
      var separator = state.rule[state.step].separator;
      state.needsSeperator = !state.needsSeperator;
      // If the separator was optional, then give it an opportunity to repeat.
      if (!state.needsSeperator && separator.ofRule) {
        return;
      }
    }
    // If this was a successful list parse, then allow it to repeat itself.
    if (successful) {
      return;
    }
  }

  // Advance the step in the rule. If the rule is completed, pop
  // the rule and advance the parent rule as well (recursively).
  state.needsSeperator = false;
  state.step++;

  // While the current rule is completed.
  while (state.rule && !(Array.isArray(state.rule) && state.step < state.rule.length)) {
    popRule(state);

    if (state.rule) {
      // Do not advance a List step so it has the opportunity to repeat itself.
      if (isList(state)) {
        if (state.rule && state.rule[state.step].separator) {
          state.needsSeperator = !state.needsSeperator;
        }
      } else {
        state.needsSeperator = false;
        state.step++;
      }
    }
  }
}

function isList(state) {
  return Array.isArray(state.rule) && typeof state.rule[state.step] !== 'string' && state.rule[state.step].isList;
}

// Unwind the state after an unsuccessful match.
function unsuccessful(state) {
  // Fall back to the parent rule until you get to an optional or list rule or
  // until the entire stack of rules is empty.
  while (state.rule && !(Array.isArray(state.rule) && state.rule[state.step].ofRule)) {
    popRule(state);
  }

  // If there is still a rule, it must be an optional or list rule.
  // Consider this rule a success so that we may move past it.
  if (state.rule) {
    advanceRule(state, false);
  }
}

// Given a stream, returns a { kind, value } pair, or null.
function lex(lexRules, stream) {
  var kinds = Object.keys(lexRules);
  for (var i = 0; i < kinds.length; i++) {
    var match = stream.match(lexRules[kinds[i]]);
    if (match && match instanceof Array) {
      return { kind: kinds[i], value: match[0] };
    }
  }
}
},{"./Rules":79}],82:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.offsetToPosition = offsetToPosition;
exports.locToRange = locToRange;

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

/**
 *  Copyright (c) Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the license found in the
 *  LICENSE file in the root directory of this source tree.
 *
 *  
 */

var Range = exports.Range = function () {
  function Range(start, end) {
    var _this = this;

    _classCallCheck(this, Range);

    this.containsPosition = function (position) {
      if (_this.start.line === position.line) {
        return _this.start.character <= position.character;
      } else if (_this.end.line === position.line) {
        return _this.end.character >= position.character;
      } else {
        return _this.start.line <= position.line && _this.end.line >= position.line;
      }
    };

    this.start = start;
    this.end = end;
  }

  Range.prototype.setStart = function setStart(line, character) {
    this.start = new Position(line, character);
  };

  Range.prototype.setEnd = function setEnd(line, character) {
    this.end = new Position(line, character);
  };

  return Range;
}();

var Position = exports.Position = function () {
  function Position(line, character) {
    var _this2 = this;

    _classCallCheck(this, Position);

    this.lessThanOrEqualTo = function (position) {
      return _this2.line < position.line || _this2.line === position.line && _this2.character <= position.character;
    };

    this.line = line;
    this.character = character;
  }

  Position.prototype.setLine = function setLine(line) {
    this.line = line;
  };

  Position.prototype.setCharacter = function setCharacter(character) {
    this.character = character;
  };

  return Position;
}();

function offsetToPosition(text, loc) {
  var EOL = '\n';
  var buf = text.slice(0, loc);
  var lines = buf.split(EOL).length - 1;
  var lastLineIndex = buf.lastIndexOf(EOL);
  return new Position(lines, loc - lastLineIndex - 1);
}

function locToRange(text, loc) {
  var start = offsetToPosition(text, loc.start);
  var end = offsetToPosition(text, loc.end);
  return new Range(start, end);
}
},{}],83:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.getASTNodeAtPosition = getASTNodeAtPosition;
exports.pointToOffset = pointToOffset;

var _Range = require('./Range');

var _graphql = require('graphql');

function getASTNodeAtPosition(query, ast, point) {
  var offset = pointToOffset(query, point);
  var nodeContainingPosition = void 0;
  (0, _graphql.visit)(ast, {
    enter: function enter(node) {
      if (node.kind !== 'Name' && // We're usually interested in their parents
      node.loc.start <= offset && offset <= node.loc.end) {
        nodeContainingPosition = node;
      } else {
        return false;
      }
    },
    leave: function leave(node) {
      if (node.loc.start <= offset && offset <= node.loc.end) {
        return false;
      }
    }
  });
  return nodeContainingPosition;
} /**
   *  Copyright (c) Facebook, Inc.
   *  All rights reserved.
   *
   *  This source code is licensed under the license found in the
   *  LICENSE file in the root directory of this source tree.
   *
   *  
   */

function pointToOffset(text, point) {
  var linesUntilPosition = text.split('\n').slice(0, point.line);
  return point.character + linesUntilPosition.map(function (line) {
    return line.length + 1;
  } // count EOL
  ).reduce(function (a, b) {
    return a + b;
  }, 0);
}
},{"./Range":82,"graphql":95}],84:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _getASTNodeAtPosition = require('./getASTNodeAtPosition');

Object.defineProperty(exports, 'getASTNodeAtPosition', {
  enumerable: true,
  get: function get() {
    return _getASTNodeAtPosition.getASTNodeAtPosition;
  }
});
Object.defineProperty(exports, 'pointToOffset', {
  enumerable: true,
  get: function get() {
    return _getASTNodeAtPosition.pointToOffset;
  }
});

var _Range = require('./Range');

Object.defineProperty(exports, 'Position', {
  enumerable: true,
  get: function get() {
    return _Range.Position;
  }
});
Object.defineProperty(exports, 'Range', {
  enumerable: true,
  get: function get() {
    return _Range.Range;
  }
});
Object.defineProperty(exports, 'locToRange', {
  enumerable: true,
  get: function get() {
    return _Range.locToRange;
  }
});
Object.defineProperty(exports, 'offsetToPosition', {
  enumerable: true,
  get: function get() {
    return _Range.offsetToPosition;
  }
});

var _validateWithCustomRules = require('./validateWithCustomRules');

Object.defineProperty(exports, 'validateWithCustomRules', {
  enumerable: true,
  get: function get() {
    return _validateWithCustomRules.validateWithCustomRules;
  }
});
},{"./Range":82,"./getASTNodeAtPosition":83,"./validateWithCustomRules":85}],85:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.validateWithCustomRules = validateWithCustomRules;

var _graphql = require('graphql');

/**
 * Validate a GraphQL Document optionally with custom validation rules.
 */
function validateWithCustomRules(schema, ast, customRules) {
  // Because every fragment is considered for determining model subsets that may
  // be used anywhere in the codebase they're all technically "used" by clients
  // of graphql-data. So we remove this rule from the validators.
  var _require = require('graphql/validation/rules/NoUnusedFragments'),
      NoUnusedFragments = _require.NoUnusedFragments;

  var rules = _graphql.specifiedRules.filter(function (rule) {
    return rule !== NoUnusedFragments;
  });

  var typeInfo = new _graphql.TypeInfo(schema);
  if (customRules) {
    Array.prototype.push.apply(rules, customRules);
  }

  var errors = (0, _graphql.validate)(schema, ast, rules, typeInfo);

  if (errors.length > 0) {
    return errors;
  }

  return [];
} /**
   *  Copyright (c) Facebook, Inc.
   *  All rights reserved.
   *
   *  This source code is licensed under the license found in the
   *  LICENSE file in the root directory of this source tree.
   *
   *  
   */
},{"graphql":95,"graphql/validation/rules/NoUnusedFragments":152}],86:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.GraphQLError = GraphQLError;

var _location = require('../language/location');

/**
 * A GraphQLError describes an Error found during the parse, validate, or
 * execute phases of performing a GraphQL operation. In addition to a message
 * and stack trace, it also includes information about the locations in a
 * GraphQL document and/or execution result that correspond to the Error.
 */
function GraphQLError( // eslint-disable-line no-redeclare
message, nodes, source, positions, path, originalError) {
  // Compute locations in the source for the given nodes/positions.
  var _source = source;
  if (!_source && nodes && nodes.length > 0) {
    var node = nodes[0];
    _source = node && node.loc && node.loc.source;
  }

  var _positions = positions;
  if (!_positions && nodes) {
    _positions = nodes.filter(function (node) {
      return Boolean(node.loc);
    }).map(function (node) {
      return node.loc.start;
    });
  }
  if (_positions && _positions.length === 0) {
    _positions = undefined;
  }

  var _locations = void 0;
  var _source2 = _source; // seems here Flow need a const to resolve type.
  if (_source2 && _positions) {
    _locations = _positions.map(function (pos) {
      return (0, _location.getLocation)(_source2, pos);
    });
  }

  Object.defineProperties(this, {
    message: {
      value: message,
      // By being enumerable, JSON.stringify will include `message` in the
      // resulting output. This ensures that the simplest possible GraphQL
      // service adheres to the spec.
      enumerable: true,
      writable: true
    },
    locations: {
      // Coercing falsey values to undefined ensures they will not be included
      // in JSON.stringify() when not provided.
      value: _locations || undefined,
      // By being enumerable, JSON.stringify will include `locations` in the
      // resulting output. This ensures that the simplest possible GraphQL
      // service adheres to the spec.
      enumerable: true
    },
    path: {
      // Coercing falsey values to undefined ensures they will not be included
      // in JSON.stringify() when not provided.
      value: path || undefined,
      // By being enumerable, JSON.stringify will include `path` in the
      // resulting output. This ensures that the simplest possible GraphQL
      // service adheres to the spec.
      enumerable: true
    },
    nodes: {
      value: nodes || undefined
    },
    source: {
      value: _source || undefined
    },
    positions: {
      value: _positions || undefined
    },
    originalError: {
      value: originalError
    }
  });

  // Include (non-enumerable) stack trace.
  if (originalError && originalError.stack) {
    Object.defineProperty(this, 'stack', {
      value: originalError.stack,
      writable: true,
      configurable: true
    });
  } else if (Error.captureStackTrace) {
    Error.captureStackTrace(this, GraphQLError);
  } else {
    Object.defineProperty(this, 'stack', {
      value: Error().stack,
      writable: true,
      configurable: true
    });
  }
}
/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

GraphQLError.prototype = Object.create(Error.prototype, {
  constructor: { value: GraphQLError },
  name: { value: 'GraphQLError' }
});
},{"../language/location":107}],87:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.formatError = formatError;

var _invariant = require('../jsutils/invariant');

var _invariant2 = _interopRequireDefault(_invariant);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

/**
 * Given a GraphQLError, format it according to the rules described by the
 * Response Format, Errors section of the GraphQL Specification.
 */
function formatError(error) {
  (0, _invariant2.default)(error, 'Received null or undefined error.');
  return {
    message: error.message,
    locations: error.locations,
    path: error.path
  };
}
/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */
},{"../jsutils/invariant":97}],88:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _GraphQLError = require('./GraphQLError');

Object.defineProperty(exports, 'GraphQLError', {
  enumerable: true,
  get: function get() {
    return _GraphQLError.GraphQLError;
  }
});

var _syntaxError = require('./syntaxError');

Object.defineProperty(exports, 'syntaxError', {
  enumerable: true,
  get: function get() {
    return _syntaxError.syntaxError;
  }
});

var _locatedError = require('./locatedError');

Object.defineProperty(exports, 'locatedError', {
  enumerable: true,
  get: function get() {
    return _locatedError.locatedError;
  }
});

var _formatError = require('./formatError');

Object.defineProperty(exports, 'formatError', {
  enumerable: true,
  get: function get() {
    return _formatError.formatError;
  }
});
},{"./GraphQLError":86,"./formatError":87,"./locatedError":89,"./syntaxError":90}],89:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.locatedError = locatedError;

var _GraphQLError = require('./GraphQLError');

/**
 * Given an arbitrary Error, presumably thrown while attempting to execute a
 * GraphQL operation, produce a new GraphQLError aware of the location in the
 * document responsible for the original Error.
 */
function locatedError(originalError, nodes, path) {
  // Note: this uses a brand-check to support GraphQL errors originating from
  // other contexts.
  if (originalError && originalError.path) {
    return originalError;
  }

  var message = originalError ? originalError.message || String(originalError) : 'An unknown error occurred.';
  return new _GraphQLError.GraphQLError(message, originalError && originalError.nodes || nodes, originalError && originalError.source, originalError && originalError.positions, path, originalError);
}
/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */
},{"./GraphQLError":86}],90:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.syntaxError = syntaxError;

var _location = require('../language/location');

var _GraphQLError = require('./GraphQLError');

/**
 * Produces a GraphQLError representing a syntax error, containing useful
 * descriptive information about the syntax error's position in the source.
 */

/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

function syntaxError(source, position, description) {
  var location = (0, _location.getLocation)(source, position);
  var error = new _GraphQLError.GraphQLError('Syntax Error ' + source.name + ' (' + location.line + ':' + location.column + ') ' + description + '\n\n' + highlightSourceAtLocation(source, location), undefined, source, [position]);
  return error;
}

/**
 * Render a helpful description of the location of the error in the GraphQL
 * Source document.
 */
function highlightSourceAtLocation(source, location) {
  var line = location.line;
  var prevLineNum = (line - 1).toString();
  var lineNum = line.toString();
  var nextLineNum = (line + 1).toString();
  var padLen = nextLineNum.length;
  var lines = source.body.split(/\r\n|[\n\r]/g);
  return (line >= 2 ? lpad(padLen, prevLineNum) + ': ' + lines[line - 2] + '\n' : '') + lpad(padLen, lineNum) + ': ' + lines[line - 1] + '\n' + Array(2 + padLen + location.column).join(' ') + '^\n' + (line < lines.length ? lpad(padLen, nextLineNum) + ': ' + lines[line] + '\n' : '');
}

function lpad(len, str) {
  return Array(len - str.length + 1).join(' ') + str;
}
},{"../language/location":107,"./GraphQLError":86}],91:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.defaultFieldResolver = undefined;
exports.execute = execute;
exports.responsePathAsArray = responsePathAsArray;
exports.addPath = addPath;
exports.assertValidExecutionArguments = assertValidExecutionArguments;
exports.buildExecutionContext = buildExecutionContext;
exports.getOperationRootType = getOperationRootType;
exports.collectFields = collectFields;
exports.buildResolveInfo = buildResolveInfo;
exports.resolveFieldValueOrError = resolveFieldValueOrError;
exports.getFieldDef = getFieldDef;

var _iterall = require('iterall');

var _error = require('../error');

var _invariant = require('../jsutils/invariant');

var _invariant2 = _interopRequireDefault(_invariant);

var _isNullish = require('../jsutils/isNullish');

var _isNullish2 = _interopRequireDefault(_isNullish);

var _typeFromAST = require('../utilities/typeFromAST');

var _kinds = require('../language/kinds');

var Kind = _interopRequireWildcard(_kinds);

var _values = require('./values');

var _definition = require('../type/definition');

var _schema = require('../type/schema');

var _introspection = require('../type/introspection');

var _directives = require('../type/directives');

function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

/**
 * Terminology
 *
 * "Definitions" are the generic name for top-level statements in the document.
 * Examples of this include:
 * 1) Operations (such as a query)
 * 2) Fragments
 *
 * "Operations" are a generic name for requests in the document.
 * Examples of this include:
 * 1) query,
 * 2) mutation
 *
 * "Selections" are the definitions that can appear legally and at
 * single level of the query. These include:
 * 1) field references e.g "a"
 * 2) fragment "spreads" e.g. "...c"
 * 3) inline fragment "spreads" e.g. "...on Type { a }"
 */

/**
 * Data that must be available at all points during query execution.
 *
 * Namely, schema of the type system that is currently executing,
 * and the fragments defined in the query document
 */


/**
 * The result of GraphQL execution.
 *
 *   - `errors` is included when any errors occurred as a non-empty array.
 *   - `data` is the result of a successful execution of the query.
 */


/**
 * Implements the "Evaluating requests" section of the GraphQL specification.
 *
 * Returns a Promise that will eventually be resolved and never rejected.
 *
 * If the arguments to this function do not result in a legal execution context,
 * a GraphQLError will be thrown immediately explaining the invalid input.
 *
 * Accepts either an object with named arguments, or individual arguments.
 */

/* eslint-disable no-redeclare */
function execute(argsOrSchema, document, rootValue, contextValue, variableValues, operationName, fieldResolver) {
  // Extract arguments from object args if provided.
  var args = arguments.length === 1 ? argsOrSchema : undefined;
  var schema = args ? args.schema : argsOrSchema;
  return args ? executeImpl(schema, args.document, args.rootValue, args.contextValue, args.variableValues, args.operationName, args.fieldResolver) : executeImpl(schema, document, rootValue, contextValue, variableValues, operationName, fieldResolver);
}
/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

function executeImpl(schema, document, rootValue, contextValue, variableValues, operationName, fieldResolver) {
  // If arguments are missing or incorrect, throw an error.
  assertValidExecutionArguments(schema, document, variableValues);

  // If a valid context cannot be created due to incorrect arguments,
  // a "Response" with only errors is returned.
  var context = void 0;
  try {
    context = buildExecutionContext(schema, document, rootValue, contextValue, variableValues, operationName, fieldResolver);
  } catch (error) {
    return Promise.resolve({ errors: [error] });
  }

  // Return a Promise that will eventually resolve to the data described by
  // The "Response" section of the GraphQL specification.
  //
  // If errors are encountered while executing a GraphQL field, only that
  // field and its descendants will be omitted, and sibling fields will still
  // be executed. An execution which encounters errors will still result in a
  // resolved Promise.
  return Promise.resolve(executeOperation(context, context.operation, rootValue)).then(function (data) {
    return context.errors.length === 0 ? { data: data } : { errors: context.errors, data: data };
  });
}

/**
 * Given a ResponsePath (found in the `path` entry in the information provided
 * as the last argument to a field resolver), return an Array of the path keys.
 */
function responsePathAsArray(path) {
  var flattened = [];
  var curr = path;
  while (curr) {
    flattened.push(curr.key);
    curr = curr.prev;
  }
  return flattened.reverse();
}

/**
 * Given a ResponsePath and a key, return a new ResponsePath containing the
 * new key.
 */
function addPath(prev, key) {
  return { prev: prev, key: key };
}

/**
 * Essential assertions before executing to provide developer feedback for
 * improper use of the GraphQL library.
 */
function assertValidExecutionArguments(schema, document, rawVariableValues) {
  (0, _invariant2.default)(schema, 'Must provide schema');
  (0, _invariant2.default)(document, 'Must provide document');
  (0, _invariant2.default)(schema instanceof _schema.GraphQLSchema, 'Schema must be an instance of GraphQLSchema. Also ensure that there are ' + 'not multiple versions of GraphQL installed in your node_modules directory.');

  // Variables, if provided, must be an object.
  (0, _invariant2.default)(!rawVariableValues || typeof rawVariableValues === 'object', 'Variables must be provided as an Object where each property is a ' + 'variable value. Perhaps look to see if an unparsed JSON string ' + 'was provided.');
}

/**
 * Constructs a ExecutionContext object from the arguments passed to
 * execute, which we will pass throughout the other execution methods.
 *
 * Throws a GraphQLError if a valid execution context cannot be created.
 */
function buildExecutionContext(schema, document, rootValue, contextValue, rawVariableValues, operationName, fieldResolver) {
  var errors = [];
  var operation = void 0;
  var fragments = Object.create(null);
  document.definitions.forEach(function (definition) {
    switch (definition.kind) {
      case Kind.OPERATION_DEFINITION:
        if (!operationName && operation) {
          throw new _error.GraphQLError('Must provide operation name if query contains multiple operations.');
        }
        if (!operationName || definition.name && definition.name.value === operationName) {
          operation = definition;
        }
        break;
      case Kind.FRAGMENT_DEFINITION:
        fragments[definition.name.value] = definition;
        break;
      default:
        throw new _error.GraphQLError('GraphQL cannot execute a request containing a ' + definition.kind + '.', [definition]);
    }
  });
  if (!operation) {
    if (operationName) {
      throw new _error.GraphQLError('Unknown operation named "' + operationName + '".');
    } else {
      throw new _error.GraphQLError('Must provide an operation.');
    }
  }
  var variableValues = (0, _values.getVariableValues)(schema, operation.variableDefinitions || [], rawVariableValues || {});

  return {
    schema: schema,
    fragments: fragments,
    rootValue: rootValue,
    contextValue: contextValue,
    operation: operation,
    variableValues: variableValues,
    fieldResolver: fieldResolver || defaultFieldResolver,
    errors: errors
  };
}

/**
 * Implements the "Evaluating operations" section of the spec.
 */
function executeOperation(exeContext, operation, rootValue) {
  var type = getOperationRootType(exeContext.schema, operation);
  var fields = collectFields(exeContext, type, operation.selectionSet, Object.create(null), Object.create(null));

  var path = undefined;

  // Errors from sub-fields of a NonNull type may propagate to the top level,
  // at which point we still log the error and null the parent field, which
  // in this case is the entire response.
  //
  // Similar to completeValueCatchingError.
  try {
    var result = operation.operation === 'mutation' ? executeFieldsSerially(exeContext, type, rootValue, path, fields) : executeFields(exeContext, type, rootValue, path, fields);
    var promise = getPromise(result);
    if (promise) {
      return promise.then(undefined, function (error) {
        exeContext.errors.push(error);
        return Promise.resolve(null);
      });
    }
    return result;
  } catch (error) {
    exeContext.errors.push(error);
    return null;
  }
}

/**
 * Extracts the root type of the operation from the schema.
 */
function getOperationRootType(schema, operation) {
  switch (operation.operation) {
    case 'query':
      return schema.getQueryType();
    case 'mutation':
      var mutationType = schema.getMutationType();
      if (!mutationType) {
        throw new _error.GraphQLError('Schema is not configured for mutations', [operation]);
      }
      return mutationType;
    case 'subscription':
      var subscriptionType = schema.getSubscriptionType();
      if (!subscriptionType) {
        throw new _error.GraphQLError('Schema is not configured for subscriptions', [operation]);
      }
      return subscriptionType;
    default:
      throw new _error.GraphQLError('Can only execute queries, mutations and subscriptions', [operation]);
  }
}

/**
 * Implements the "Evaluating selection sets" section of the spec
 * for "write" mode.
 */
function executeFieldsSerially(exeContext, parentType, sourceValue, path, fields) {
  return Object.keys(fields).reduce(function (prevPromise, responseName) {
    return prevPromise.then(function (results) {
      var fieldNodes = fields[responseName];
      var fieldPath = addPath(path, responseName);
      var result = resolveField(exeContext, parentType, sourceValue, fieldNodes, fieldPath);
      if (result === undefined) {
        return results;
      }
      var promise = getPromise(result);
      if (promise) {
        return promise.then(function (resolvedResult) {
          results[responseName] = resolvedResult;
          return results;
        });
      }
      results[responseName] = result;
      return results;
    });
  }, Promise.resolve({}));
}

/**
 * Implements the "Evaluating selection sets" section of the spec
 * for "read" mode.
 */
function executeFields(exeContext, parentType, sourceValue, path, fields) {
  var containsPromise = false;

  var finalResults = Object.keys(fields).reduce(function (results, responseName) {
    var fieldNodes = fields[responseName];
    var fieldPath = addPath(path, responseName);
    var result = resolveField(exeContext, parentType, sourceValue, fieldNodes, fieldPath);
    if (result === undefined) {
      return results;
    }
    results[responseName] = result;
    if (getPromise(result)) {
      containsPromise = true;
    }
    return results;
  }, Object.create(null));

  // If there are no promises, we can just return the object
  if (!containsPromise) {
    return finalResults;
  }

  // Otherwise, results is a map from field name to the result
  // of resolving that field, which is possibly a promise. Return
  // a promise that will return this same map, but with any
  // promises replaced with the values they resolved to.
  return promiseForObject(finalResults);
}

/**
 * Given a selectionSet, adds all of the fields in that selection to
 * the passed in map of fields, and returns it at the end.
 *
 * CollectFields requires the "runtime type" of an object. For a field which
 * returns an Interface or Union type, the "runtime type" will be the actual
 * Object type returned by that field.
 */
function collectFields(exeContext, runtimeType, selectionSet, fields, visitedFragmentNames) {
  for (var i = 0; i < selectionSet.selections.length; i++) {
    var selection = selectionSet.selections[i];
    switch (selection.kind) {
      case Kind.FIELD:
        if (!shouldIncludeNode(exeContext, selection)) {
          continue;
        }
        var _name = getFieldEntryKey(selection);
        if (!fields[_name]) {
          fields[_name] = [];
        }
        fields[_name].push(selection);
        break;
      case Kind.INLINE_FRAGMENT:
        if (!shouldIncludeNode(exeContext, selection) || !doesFragmentConditionMatch(exeContext, selection, runtimeType)) {
          continue;
        }
        collectFields(exeContext, runtimeType, selection.selectionSet, fields, visitedFragmentNames);
        break;
      case Kind.FRAGMENT_SPREAD:
        var fragName = selection.name.value;
        if (visitedFragmentNames[fragName] || !shouldIncludeNode(exeContext, selection)) {
          continue;
        }
        visitedFragmentNames[fragName] = true;
        var fragment = exeContext.fragments[fragName];
        if (!fragment || !doesFragmentConditionMatch(exeContext, fragment, runtimeType)) {
          continue;
        }
        collectFields(exeContext, runtimeType, fragment.selectionSet, fields, visitedFragmentNames);
        break;
    }
  }
  return fields;
}

/**
 * Determines if a field should be included based on the @include and @skip
 * directives, where @skip has higher precedence than @include.
 */
function shouldIncludeNode(exeContext, node) {
  var skip = (0, _values.getDirectiveValues)(_directives.GraphQLSkipDirective, node, exeContext.variableValues);
  if (skip && skip.if === true) {
    return false;
  }

  var include = (0, _values.getDirectiveValues)(_directives.GraphQLIncludeDirective, node, exeContext.variableValues);
  if (include && include.if === false) {
    return false;
  }
  return true;
}

/**
 * Determines if a fragment is applicable to the given type.
 */
function doesFragmentConditionMatch(exeContext, fragment, type) {
  var typeConditionNode = fragment.typeCondition;
  if (!typeConditionNode) {
    return true;
  }
  var conditionalType = (0, _typeFromAST.typeFromAST)(exeContext.schema, typeConditionNode);
  if (conditionalType === type) {
    return true;
  }
  if ((0, _definition.isAbstractType)(conditionalType)) {
    return exeContext.schema.isPossibleType(conditionalType, type);
  }
  return false;
}

/**
 * This function transforms a JS object `{[key: string]: Promise<T>}` into
 * a `Promise<{[key: string]: T}>`
 *
 * This is akin to bluebird's `Promise.props`, but implemented only using
 * `Promise.all` so it will work with any implementation of ES6 promises.
 */
function promiseForObject(object) {
  var keys = Object.keys(object);
  var valuesAndPromises = keys.map(function (name) {
    return object[name];
  });
  return Promise.all(valuesAndPromises).then(function (values) {
    return values.reduce(function (resolvedObject, value, i) {
      resolvedObject[keys[i]] = value;
      return resolvedObject;
    }, Object.create(null));
  });
}

/**
 * Implements the logic to compute the key of a given field's entry
 */
function getFieldEntryKey(node) {
  return node.alias ? node.alias.value : node.name.value;
}

/**
 * Resolves the field on the given source object. In particular, this
 * figures out the value that the field returns by calling its resolve function,
 * then calls completeValue to complete promises, serialize scalars, or execute
 * the sub-selection-set for objects.
 */
function resolveField(exeContext, parentType, source, fieldNodes, path) {
  var fieldNode = fieldNodes[0];
  var fieldName = fieldNode.name.value;

  var fieldDef = getFieldDef(exeContext.schema, parentType, fieldName);
  if (!fieldDef) {
    return;
  }

  var resolveFn = fieldDef.resolve || exeContext.fieldResolver;

  var info = buildResolveInfo(exeContext, fieldDef, fieldNodes, parentType, path);

  // Get the resolve function, regardless of if its result is normal
  // or abrupt (error).
  var result = resolveFieldValueOrError(exeContext, fieldDef, fieldNodes, resolveFn, source, info);

  return completeValueCatchingError(exeContext, fieldDef.type, fieldNodes, info, path, result);
}

function buildResolveInfo(exeContext, fieldDef, fieldNodes, parentType, path) {
  // The resolve function's optional fourth argument is a collection of
  // information about the current execution state.
  return {
    fieldName: fieldNodes[0].name.value,
    fieldNodes: fieldNodes,
    returnType: fieldDef.type,
    parentType: parentType,
    path: path,
    schema: exeContext.schema,
    fragments: exeContext.fragments,
    rootValue: exeContext.rootValue,
    operation: exeContext.operation,
    variableValues: exeContext.variableValues
  };
}

// Isolates the "ReturnOrAbrupt" behavior to not de-opt the `resolveField`
// function. Returns the result of resolveFn or the abrupt-return Error object.
function resolveFieldValueOrError(exeContext, fieldDef, fieldNodes, resolveFn, source, info) {
  try {
    // Build a JS object of arguments from the field.arguments AST, using the
    // variables scope to fulfill any variable references.
    // TODO: find a way to memoize, in case this field is within a List type.
    var args = (0, _values.getArgumentValues)(fieldDef, fieldNodes[0], exeContext.variableValues);

    // The resolve function's optional third argument is a context value that
    // is provided to every resolve function within an execution. It is commonly
    // used to represent an authenticated user, or request-specific caches.
    var context = exeContext.contextValue;

    return resolveFn(source, args, context, info);
  } catch (error) {
    // Sometimes a non-error is thrown, wrap it as an Error for a
    // consistent interface.
    return error instanceof Error ? error : new Error(error);
  }
}

// This is a small wrapper around completeValue which detects and logs errors
// in the execution context.
function completeValueCatchingError(exeContext, returnType, fieldNodes, info, path, result) {
  // If the field type is non-nullable, then it is resolved without any
  // protection from errors, however it still properly locates the error.
  if (returnType instanceof _definition.GraphQLNonNull) {
    return completeValueWithLocatedError(exeContext, returnType, fieldNodes, info, path, result);
  }

  // Otherwise, error protection is applied, logging the error and resolving
  // a null value for this field if one is encountered.
  try {
    var completed = completeValueWithLocatedError(exeContext, returnType, fieldNodes, info, path, result);
    var promise = getPromise(completed);
    if (promise) {
      // If `completeValueWithLocatedError` returned a rejected promise, log
      // the rejection error and resolve to null.
      // Note: we don't rely on a `catch` method, but we do expect "thenable"
      // to take a second callback for the error case.
      return promise.then(undefined, function (error) {
        exeContext.errors.push(error);
        return Promise.resolve(null);
      });
    }
    return completed;
  } catch (error) {
    // If `completeValueWithLocatedError` returned abruptly (threw an error),
    // log the error and return null.
    exeContext.errors.push(error);
    return null;
  }
}

// This is a small wrapper around completeValue which annotates errors with
// location information.
function completeValueWithLocatedError(exeContext, returnType, fieldNodes, info, path, result) {
  try {
    var completed = completeValue(exeContext, returnType, fieldNodes, info, path, result);
    var promise = getPromise(completed);
    if (promise) {
      return promise.then(undefined, function (error) {
        return Promise.reject((0, _error.locatedError)(error, fieldNodes, responsePathAsArray(path)));
      });
    }
    return completed;
  } catch (error) {
    throw (0, _error.locatedError)(error, fieldNodes, responsePathAsArray(path));
  }
}

/**
 * Implements the instructions for completeValue as defined in the
 * "Field entries" section of the spec.
 *
 * If the field type is Non-Null, then this recursively completes the value
 * for the inner type. It throws a field error if that completion returns null,
 * as per the "Nullability" section of the spec.
 *
 * If the field type is a List, then this recursively completes the value
 * for the inner type on each item in the list.
 *
 * If the field type is a Scalar or Enum, ensures the completed value is a legal
 * value of the type by calling the `serialize` method of GraphQL type
 * definition.
 *
 * If the field is an abstract type, determine the runtime type of the value
 * and then complete based on that type
 *
 * Otherwise, the field type expects a sub-selection set, and will complete the
 * value by evaluating all sub-selections.
 */
function completeValue(exeContext, returnType, fieldNodes, info, path, result) {
  // If result is a Promise, apply-lift over completeValue.
  var promise = getPromise(result);
  if (promise) {
    return promise.then(function (resolved) {
      return completeValue(exeContext, returnType, fieldNodes, info, path, resolved);
    });
  }

  // If result is an Error, throw a located error.
  if (result instanceof Error) {
    throw result;
  }

  // If field type is NonNull, complete for inner type, and throw field error
  // if result is null.
  if (returnType instanceof _definition.GraphQLNonNull) {
    var completed = completeValue(exeContext, returnType.ofType, fieldNodes, info, path, result);
    if (completed === null) {
      throw new Error('Cannot return null for non-nullable field ' + info.parentType.name + '.' + info.fieldName + '.');
    }
    return completed;
  }

  // If result value is null-ish (null, undefined, or NaN) then return null.
  if ((0, _isNullish2.default)(result)) {
    return null;
  }

  // If field type is List, complete each item in the list with the inner type
  if (returnType instanceof _definition.GraphQLList) {
    return completeListValue(exeContext, returnType, fieldNodes, info, path, result);
  }

  // If field type is a leaf type, Scalar or Enum, serialize to a valid value,
  // returning null if serialization is not possible.
  if ((0, _definition.isLeafType)(returnType)) {
    return completeLeafValue(returnType, result);
  }

  // If field type is an abstract type, Interface or Union, determine the
  // runtime Object type and complete for that type.
  if ((0, _definition.isAbstractType)(returnType)) {
    return completeAbstractValue(exeContext, returnType, fieldNodes, info, path, result);
  }

  // If field type is Object, execute and complete all sub-selections.
  if (returnType instanceof _definition.GraphQLObjectType) {
    return completeObjectValue(exeContext, returnType, fieldNodes, info, path, result);
  }

  // Not reachable. All possible output types have been considered.
  throw new Error('Cannot complete value of unexpected type "' + String(returnType) + '".');
}

/**
 * Complete a list value by completing each item in the list with the
 * inner type
 */
function completeListValue(exeContext, returnType, fieldNodes, info, path, result) {
  (0, _invariant2.default)((0, _iterall.isCollection)(result), 'Expected Iterable, but did not find one for field ' + info.parentType.name + '.' + info.fieldName + '.');

  // This is specified as a simple map, however we're optimizing the path
  // where the list contains no Promises by avoiding creating another Promise.
  var itemType = returnType.ofType;
  var containsPromise = false;
  var completedResults = [];
  (0, _iterall.forEach)(result, function (item, index) {
    // No need to modify the info object containing the path,
    // since from here on it is not ever accessed by resolver functions.
    var fieldPath = addPath(path, index);
    var completedItem = completeValueCatchingError(exeContext, itemType, fieldNodes, info, fieldPath, item);

    if (!containsPromise && getPromise(completedItem)) {
      containsPromise = true;
    }
    completedResults.push(completedItem);
  });

  return containsPromise ? Promise.all(completedResults) : completedResults;
}

/**
 * Complete a Scalar or Enum by serializing to a valid value, returning
 * null if serialization is not possible.
 */
function completeLeafValue(returnType, result) {
  (0, _invariant2.default)(returnType.serialize, 'Missing serialize method on type');
  var serializedResult = returnType.serialize(result);
  if ((0, _isNullish2.default)(serializedResult)) {
    throw new Error('Expected a value of type "' + String(returnType) + '" but ' + ('received: ' + String(result)));
  }
  return serializedResult;
}

/**
 * Complete a value of an abstract type by determining the runtime object type
 * of that value, then complete the value for that type.
 */
function completeAbstractValue(exeContext, returnType, fieldNodes, info, path, result) {
  var runtimeType = returnType.resolveType ? returnType.resolveType(result, exeContext.contextValue, info) : defaultResolveTypeFn(result, exeContext.contextValue, info, returnType);

  var promise = getPromise(runtimeType);
  if (promise) {
    return promise.then(function (resolvedRuntimeType) {
      return completeObjectValue(exeContext, ensureValidRuntimeType(resolvedRuntimeType, exeContext, returnType, fieldNodes, info, result), fieldNodes, info, path, result);
    });
  }

  return completeObjectValue(exeContext, ensureValidRuntimeType(runtimeType, exeContext, returnType, fieldNodes, info, result), fieldNodes, info, path, result);
}

function ensureValidRuntimeType(runtimeTypeOrName, exeContext, returnType, fieldNodes, info, result) {
  var runtimeType = typeof runtimeTypeOrName === 'string' ? exeContext.schema.getType(runtimeTypeOrName) : runtimeTypeOrName;

  if (!(runtimeType instanceof _definition.GraphQLObjectType)) {
    throw new _error.GraphQLError('Abstract type ' + returnType.name + ' must resolve to an Object type at ' + ('runtime for field ' + info.parentType.name + '.' + info.fieldName + ' with ') + ('value "' + String(result) + '", received "' + String(runtimeType) + '".'), fieldNodes);
  }

  if (!exeContext.schema.isPossibleType(returnType, runtimeType)) {
    throw new _error.GraphQLError('Runtime Object type "' + runtimeType.name + '" is not a possible type ' + ('for "' + returnType.name + '".'), fieldNodes);
  }

  return runtimeType;
}

/**
 * Complete an Object value by executing all sub-selections.
 */
function completeObjectValue(exeContext, returnType, fieldNodes, info, path, result) {
  // If there is an isTypeOf predicate function, call it with the
  // current result. If isTypeOf returns false, then raise an error rather
  // than continuing execution.
  if (returnType.isTypeOf) {
    var isTypeOf = returnType.isTypeOf(result, exeContext.contextValue, info);

    var promise = getPromise(isTypeOf);
    if (promise) {
      return promise.then(function (isTypeOfResult) {
        if (!isTypeOfResult) {
          throw invalidReturnTypeError(returnType, result, fieldNodes);
        }
        return collectAndExecuteSubfields(exeContext, returnType, fieldNodes, info, path, result);
      });
    }

    if (!isTypeOf) {
      throw invalidReturnTypeError(returnType, result, fieldNodes);
    }
  }

  return collectAndExecuteSubfields(exeContext, returnType, fieldNodes, info, path, result);
}

function invalidReturnTypeError(returnType, result, fieldNodes) {
  return new _error.GraphQLError('Expected value of type "' + returnType.name + '" but got: ' + String(result) + '.', fieldNodes);
}

function collectAndExecuteSubfields(exeContext, returnType, fieldNodes, info, path, result) {
  // Collect sub-fields to execute to complete this value.
  var subFieldNodes = Object.create(null);
  var visitedFragmentNames = Object.create(null);
  for (var i = 0; i < fieldNodes.length; i++) {
    var selectionSet = fieldNodes[i].selectionSet;
    if (selectionSet) {
      subFieldNodes = collectFields(exeContext, returnType, selectionSet, subFieldNodes, visitedFragmentNames);
    }
  }

  return executeFields(exeContext, returnType, result, path, subFieldNodes);
}

/**
 * If a resolveType function is not given, then a default resolve behavior is
 * used which tests each possible type for the abstract type by calling
 * isTypeOf for the object being coerced, returning the first type that matches.
 */
function defaultResolveTypeFn(value, context, info, abstractType) {
  var possibleTypes = info.schema.getPossibleTypes(abstractType);
  var promisedIsTypeOfResults = [];

  for (var i = 0; i < possibleTypes.length; i++) {
    var type = possibleTypes[i];

    if (type.isTypeOf) {
      var isTypeOfResult = type.isTypeOf(value, context, info);

      var promise = getPromise(isTypeOfResult);
      if (promise) {
        promisedIsTypeOfResults[i] = promise;
      } else if (isTypeOfResult) {
        return type;
      }
    }
  }

  if (promisedIsTypeOfResults.length) {
    return Promise.all(promisedIsTypeOfResults).then(function (isTypeOfResults) {
      for (var _i = 0; _i < isTypeOfResults.length; _i++) {
        if (isTypeOfResults[_i]) {
          return possibleTypes[_i];
        }
      }
    });
  }
}

/**
 * If a resolve function is not given, then a default resolve behavior is used
 * which takes the property of the source object of the same name as the field
 * and returns it as the result, or if it's a function, returns the result
 * of calling that function while passing along args and context.
 */
var defaultFieldResolver = exports.defaultFieldResolver = function defaultFieldResolver(source, args, context, info) {
  // ensure source is a value for which property access is acceptable.
  if (typeof source === 'object' || typeof source === 'function') {
    var property = source[info.fieldName];
    if (typeof property === 'function') {
      return source[info.fieldName](args, context, info);
    }
    return property;
  }
};

/**
 * Only returns the value if it acts like a Promise, i.e. has a "then" function,
 * otherwise returns void.
 */
function getPromise(value) {
  if (typeof value === 'object' && value !== null && typeof value.then === 'function') {
    return value;
  }
}

/**
 * This method looks up the field on the given type definition.
 * It has special casing for the two introspection fields, __schema
 * and __typename. __typename is special because it can always be
 * queried as a field, even in situations where no other fields
 * are allowed, like on a Union. __schema could get automatically
 * added to the query type, but that would require mutating type
 * definitions, which would cause issues.
 */
function getFieldDef(schema, parentType, fieldName) {
  if (fieldName === _introspection.SchemaMetaFieldDef.name && schema.getQueryType() === parentType) {
    return _introspection.SchemaMetaFieldDef;
  } else if (fieldName === _introspection.TypeMetaFieldDef.name && schema.getQueryType() === parentType) {
    return _introspection.TypeMetaFieldDef;
  } else if (fieldName === _introspection.TypeNameMetaFieldDef.name) {
    return _introspection.TypeNameMetaFieldDef;
  }
  return parentType.getFields()[fieldName];
}
},{"../error":88,"../jsutils/invariant":97,"../jsutils/isNullish":99,"../language/kinds":105,"../type/definition":115,"../type/directives":116,"../type/introspection":118,"../type/schema":120,"../utilities/typeFromAST":138,"./values":93,"iterall":169}],92:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _execute = require('./execute');

Object.defineProperty(exports, 'execute', {
  enumerable: true,
  get: function get() {
    return _execute.execute;
  }
});
Object.defineProperty(exports, 'defaultFieldResolver', {
  enumerable: true,
  get: function get() {
    return _execute.defaultFieldResolver;
  }
});
Object.defineProperty(exports, 'responsePathAsArray', {
  enumerable: true,
  get: function get() {
    return _execute.responsePathAsArray;
  }
});

var _values = require('./values');

Object.defineProperty(exports, 'getDirectiveValues', {
  enumerable: true,
  get: function get() {
    return _values.getDirectiveValues;
  }
});
},{"./execute":91,"./values":93}],93:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.getVariableValues = getVariableValues;
exports.getArgumentValues = getArgumentValues;
exports.getDirectiveValues = getDirectiveValues;

var _iterall = require('iterall');

var _error = require('../error');

var _find = require('../jsutils/find');

var _find2 = _interopRequireDefault(_find);

var _invariant = require('../jsutils/invariant');

var _invariant2 = _interopRequireDefault(_invariant);

var _isNullish = require('../jsutils/isNullish');

var _isNullish2 = _interopRequireDefault(_isNullish);

var _isInvalid = require('../jsutils/isInvalid');

var _isInvalid2 = _interopRequireDefault(_isInvalid);

var _keyMap = require('../jsutils/keyMap');

var _keyMap2 = _interopRequireDefault(_keyMap);

var _typeFromAST = require('../utilities/typeFromAST');

var _valueFromAST = require('../utilities/valueFromAST');

var _isValidJSValue = require('../utilities/isValidJSValue');

var _isValidLiteralValue = require('../utilities/isValidLiteralValue');

var _kinds = require('../language/kinds');

var Kind = _interopRequireWildcard(_kinds);

var _printer = require('../language/printer');

var _definition = require('../type/definition');

function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

/**
 * Prepares an object map of variableValues of the correct type based on the
 * provided variable definitions and arbitrary input. If the input cannot be
 * parsed to match the variable definitions, a GraphQLError will be thrown.
 */

/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

function getVariableValues(schema, varDefNodes, inputs) {
  var coercedValues = Object.create(null);
  for (var i = 0; i < varDefNodes.length; i++) {
    var varDefNode = varDefNodes[i];
    var varName = varDefNode.variable.name.value;
    var varType = (0, _typeFromAST.typeFromAST)(schema, varDefNode.type);
    if (!(0, _definition.isInputType)(varType)) {
      throw new _error.GraphQLError('Variable "$' + varName + '" expected value of type ' + ('"' + (0, _printer.print)(varDefNode.type) + '" which cannot be used as an input type.'), [varDefNode.type]);
    }

    var value = inputs[varName];
    if ((0, _isInvalid2.default)(value)) {
      var defaultValue = varDefNode.defaultValue;
      if (defaultValue) {
        coercedValues[varName] = (0, _valueFromAST.valueFromAST)(defaultValue, varType);
      }
      if (varType instanceof _definition.GraphQLNonNull) {
        throw new _error.GraphQLError('Variable "$' + varName + '" of required type ' + ('"' + String(varType) + '" was not provided.'), [varDefNode]);
      }
    } else {
      var errors = (0, _isValidJSValue.isValidJSValue)(value, varType);
      if (errors.length) {
        var message = errors ? '\n' + errors.join('\n') : '';
        throw new _error.GraphQLError('Variable "$' + varName + '" got invalid value ' + (JSON.stringify(value) + '.' + message), [varDefNode]);
      }

      var coercedValue = coerceValue(varType, value);
      (0, _invariant2.default)(!(0, _isInvalid2.default)(coercedValue), 'Should have reported error.');
      coercedValues[varName] = coercedValue;
    }
  }
  return coercedValues;
}

/**
 * Prepares an object map of argument values given a list of argument
 * definitions and list of argument AST nodes.
 */
function getArgumentValues(def, node, variableValues) {
  var argDefs = def.args;
  var argNodes = node.arguments;
  if (!argDefs || !argNodes) {
    return {};
  }
  var coercedValues = Object.create(null);
  var argNodeMap = (0, _keyMap2.default)(argNodes, function (arg) {
    return arg.name.value;
  });
  for (var i = 0; i < argDefs.length; i++) {
    var argDef = argDefs[i];
    var name = argDef.name;
    var argType = argDef.type;
    var argumentNode = argNodeMap[name];
    var defaultValue = argDef.defaultValue;
    if (!argumentNode) {
      if (!(0, _isInvalid2.default)(defaultValue)) {
        coercedValues[name] = defaultValue;
      } else if (argType instanceof _definition.GraphQLNonNull) {
        throw new _error.GraphQLError('Argument "' + name + '" of required type ' + ('"' + String(argType) + '" was not provided.'), [node]);
      }
    } else if (argumentNode.value.kind === Kind.VARIABLE) {
      var variableName = argumentNode.value.name.value;
      if (variableValues && !(0, _isInvalid2.default)(variableValues[variableName])) {
        // Note: this does not check that this variable value is correct.
        // This assumes that this query has been validated and the variable
        // usage here is of the correct type.
        coercedValues[name] = variableValues[variableName];
      } else if (!(0, _isInvalid2.default)(defaultValue)) {
        coercedValues[name] = defaultValue;
      } else if (argType instanceof _definition.GraphQLNonNull) {
        throw new _error.GraphQLError('Argument "' + name + '" of required type "' + String(argType) + '" was ' + ('provided the variable "$' + variableName + '" which was not provided ') + 'a runtime value.', [argumentNode.value]);
      }
    } else {
      var valueNode = argumentNode.value;
      var coercedValue = (0, _valueFromAST.valueFromAST)(valueNode, argType, variableValues);
      if ((0, _isInvalid2.default)(coercedValue)) {
        var errors = (0, _isValidLiteralValue.isValidLiteralValue)(argType, valueNode);
        var message = errors ? '\n' + errors.join('\n') : '';
        throw new _error.GraphQLError('Argument "' + name + '" got invalid value ' + (0, _printer.print)(valueNode) + '.' + message, [argumentNode.value]);
      }
      coercedValues[name] = coercedValue;
    }
  }
  return coercedValues;
}

/**
 * Prepares an object map of argument values given a directive definition
 * and a AST node which may contain directives. Optionally also accepts a map
 * of variable values.
 *
 * If the directive does not exist on the node, returns undefined.
 */
function getDirectiveValues(directiveDef, node, variableValues) {
  var directiveNode = node.directives && (0, _find2.default)(node.directives, function (directive) {
    return directive.name.value === directiveDef.name;
  });

  if (directiveNode) {
    return getArgumentValues(directiveDef, directiveNode, variableValues);
  }
}

/**
 * Given a type and any value, return a runtime value coerced to match the type.
 */
function coerceValue(type, value) {
  // Ensure flow knows that we treat function params as const.
  var _value = value;

  if ((0, _isInvalid2.default)(_value)) {
    return; // Intentionally return no value.
  }

  if (type instanceof _definition.GraphQLNonNull) {
    if (_value === null) {
      return; // Intentionally return no value.
    }
    return coerceValue(type.ofType, _value);
  }

  if (_value === null) {
    // Intentionally return the value null.
    return null;
  }

  if (type instanceof _definition.GraphQLList) {
    var itemType = type.ofType;
    if ((0, _iterall.isCollection)(_value)) {
      var coercedValues = [];
      var valueIter = (0, _iterall.createIterator)(_value);
      if (!valueIter) {
        return; // Intentionally return no value.
      }
      var step = void 0;
      while (!(step = valueIter.next()).done) {
        var itemValue = coerceValue(itemType, step.value);
        if ((0, _isInvalid2.default)(itemValue)) {
          return; // Intentionally return no value.
        }
        coercedValues.push(itemValue);
      }
      return coercedValues;
    }
    var coercedValue = coerceValue(itemType, _value);
    if ((0, _isInvalid2.default)(coercedValue)) {
      return; // Intentionally return no value.
    }
    return [coerceValue(itemType, _value)];
  }

  if (type instanceof _definition.GraphQLInputObjectType) {
    if (typeof _value !== 'object') {
      return; // Intentionally return no value.
    }
    var coercedObj = Object.create(null);
    var fields = type.getFields();
    var fieldNames = Object.keys(fields);
    for (var i = 0; i < fieldNames.length; i++) {
      var fieldName = fieldNames[i];
      var field = fields[fieldName];
      if ((0, _isInvalid2.default)(_value[fieldName])) {
        if (!(0, _isInvalid2.default)(field.defaultValue)) {
          coercedObj[fieldName] = field.defaultValue;
        } else if (field.type instanceof _definition.GraphQLNonNull) {
          return; // Intentionally return no value.
        }
        continue;
      }
      var fieldValue = coerceValue(field.type, _value[fieldName]);
      if ((0, _isInvalid2.default)(fieldValue)) {
        return; // Intentionally return no value.
      }
      coercedObj[fieldName] = fieldValue;
    }
    return coercedObj;
  }

  (0, _invariant2.default)(type instanceof _definition.GraphQLScalarType || type instanceof _definition.GraphQLEnumType, 'Must be input type');

  var parsed = type.parseValue(_value);
  if ((0, _isNullish2.default)(parsed)) {
    // null or invalid values represent a failure to parse correctly,
    // in which case no value is returned.
    return;
  }

  return parsed;
}
},{"../error":88,"../jsutils/find":96,"../jsutils/invariant":97,"../jsutils/isInvalid":98,"../jsutils/isNullish":99,"../jsutils/keyMap":100,"../language/kinds":105,"../language/printer":109,"../type/definition":115,"../utilities/isValidJSValue":133,"../utilities/isValidLiteralValue":134,"../utilities/typeFromAST":138,"../utilities/valueFromAST":139,"iterall":169}],94:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.graphql = graphql;

var _parser = require('./language/parser');

var _validate = require('./validation/validate');

var _execute = require('./execution/execute');

/**
 * This is the primary entry point function for fulfilling GraphQL operations
 * by parsing, validating, and executing a GraphQL document along side a
 * GraphQL schema.
 *
 * More sophisticated GraphQL servers, such as those which persist queries,
 * may wish to separate the validation and execution phases to a static time
 * tooling step, and a server runtime step.
 *
 * Accepts either an object with named arguments, or individual arguments:
 *
 * schema:
 *    The GraphQL type system to use when validating and executing a query.
 * source:
 *    A GraphQL language formatted string representing the requested operation.
 * rootValue:
 *    The value provided as the first argument to resolver functions on the top
 *    level type (e.g. the query object type).
 * variableValues:
 *    A mapping of variable name to runtime value to use for all variables
 *    defined in the requestString.
 * operationName:
 *    The name of the operation to use if requestString contains multiple
 *    possible operations. Can be omitted if requestString contains only
 *    one operation.
 * fieldResolver:
 *    A resolver function to use when one is not provided by the schema.
 *    If not provided, the default field resolver is used (which looks for a
 *    value or method on the source value with the field's name).
 */

/* eslint-disable no-redeclare */
function graphql(argsOrSchema, source, rootValue, contextValue, variableValues, operationName, fieldResolver) {
  // Extract arguments from object args if provided.
  var args = arguments.length === 1 ? argsOrSchema : undefined;
  var schema = args ? args.schema : argsOrSchema;
  return args ? graphqlImpl(schema, args.source, args.rootValue, args.contextValue, args.variableValues, args.operationName, args.fieldResolver) : graphqlImpl(schema, source, rootValue, contextValue, variableValues, operationName, fieldResolver);
}
/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

function graphqlImpl(schema, source, rootValue, contextValue, variableValues, operationName, fieldResolver) {
  return new Promise(function (resolve) {
    // Parse
    var document = void 0;
    try {
      document = (0, _parser.parse)(source);
    } catch (syntaxError) {
      return resolve({ errors: [syntaxError] });
    }

    // Validate
    var validationErrors = (0, _validate.validate)(schema, document);
    if (validationErrors.length > 0) {
      return resolve({ errors: validationErrors });
    }

    // Execute
    resolve((0, _execute.execute)(schema, document, rootValue, contextValue, variableValues, operationName, fieldResolver));
  });
}
},{"./execution/execute":91,"./language/parser":108,"./validation/validate":168}],95:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _graphql = require('./graphql');

Object.defineProperty(exports, 'graphql', {
  enumerable: true,
  get: function get() {
    return _graphql.graphql;
  }
});

var _type = require('./type');

Object.defineProperty(exports, 'GraphQLSchema', {
  enumerable: true,
  get: function get() {
    return _type.GraphQLSchema;
  }
});
Object.defineProperty(exports, 'GraphQLScalarType', {
  enumerable: true,
  get: function get() {
    return _type.GraphQLScalarType;
  }
});
Object.defineProperty(exports, 'GraphQLObjectType', {
  enumerable: true,
  get: function get() {
    return _type.GraphQLObjectType;
  }
});
Object.defineProperty(exports, 'GraphQLInterfaceType', {
  enumerable: true,
  get: function get() {
    return _type.GraphQLInterfaceType;
  }
});
Object.defineProperty(exports, 'GraphQLUnionType', {
  enumerable: true,
  get: function get() {
    return _type.GraphQLUnionType;
  }
});
Object.defineProperty(exports, 'GraphQLEnumType', {
  enumerable: true,
  get: function get() {
    return _type.GraphQLEnumType;
  }
});
Object.defineProperty(exports, 'GraphQLInputObjectType', {
  enumerable: true,
  get: function get() {
    return _type.GraphQLInputObjectType;
  }
});
Object.defineProperty(exports, 'GraphQLList', {
  enumerable: true,
  get: function get() {
    return _type.GraphQLList;
  }
});
Object.defineProperty(exports, 'GraphQLNonNull', {
  enumerable: true,
  get: function get() {
    return _type.GraphQLNonNull;
  }
});
Object.defineProperty(exports, 'GraphQLDirective', {
  enumerable: true,
  get: function get() {
    return _type.GraphQLDirective;
  }
});
Object.defineProperty(exports, 'TypeKind', {
  enumerable: true,
  get: function get() {
    return _type.TypeKind;
  }
});
Object.defineProperty(exports, 'DirectiveLocation', {
  enumerable: true,
  get: function get() {
    return _type.DirectiveLocation;
  }
});
Object.defineProperty(exports, 'GraphQLInt', {
  enumerable: true,
  get: function get() {
    return _type.GraphQLInt;
  }
});
Object.defineProperty(exports, 'GraphQLFloat', {
  enumerable: true,
  get: function get() {
    return _type.GraphQLFloat;
  }
});
Object.defineProperty(exports, 'GraphQLString', {
  enumerable: true,
  get: function get() {
    return _type.GraphQLString;
  }
});
Object.defineProperty(exports, 'GraphQLBoolean', {
  enumerable: true,
  get: function get() {
    return _type.GraphQLBoolean;
  }
});
Object.defineProperty(exports, 'GraphQLID', {
  enumerable: true,
  get: function get() {
    return _type.GraphQLID;
  }
});
Object.defineProperty(exports, 'specifiedDirectives', {
  enumerable: true,
  get: function get() {
    return _type.specifiedDirectives;
  }
});
Object.defineProperty(exports, 'GraphQLIncludeDirective', {
  enumerable: true,
  get: function get() {
    return _type.GraphQLIncludeDirective;
  }
});
Object.defineProperty(exports, 'GraphQLSkipDirective', {
  enumerable: true,
  get: function get() {
    return _type.GraphQLSkipDirective;
  }
});
Object.defineProperty(exports, 'GraphQLDeprecatedDirective', {
  enumerable: true,
  get: function get() {
    return _type.GraphQLDeprecatedDirective;
  }
});
Object.defineProperty(exports, 'DEFAULT_DEPRECATION_REASON', {
  enumerable: true,
  get: function get() {
    return _type.DEFAULT_DEPRECATION_REASON;
  }
});
Object.defineProperty(exports, 'SchemaMetaFieldDef', {
  enumerable: true,
  get: function get() {
    return _type.SchemaMetaFieldDef;
  }
});
Object.defineProperty(exports, 'TypeMetaFieldDef', {
  enumerable: true,
  get: function get() {
    return _type.TypeMetaFieldDef;
  }
});
Object.defineProperty(exports, 'TypeNameMetaFieldDef', {
  enumerable: true,
  get: function get() {
    return _type.TypeNameMetaFieldDef;
  }
});
Object.defineProperty(exports, '__Schema', {
  enumerable: true,
  get: function get() {
    return _type.__Schema;
  }
});
Object.defineProperty(exports, '__Directive', {
  enumerable: true,
  get: function get() {
    return _type.__Directive;
  }
});
Object.defineProperty(exports, '__DirectiveLocation', {
  enumerable: true,
  get: function get() {
    return _type.__DirectiveLocation;
  }
});
Object.defineProperty(exports, '__Type', {
  enumerable: true,
  get: function get() {
    return _type.__Type;
  }
});
Object.defineProperty(exports, '__Field', {
  enumerable: true,
  get: function get() {
    return _type.__Field;
  }
});
Object.defineProperty(exports, '__InputValue', {
  enumerable: true,
  get: function get() {
    return _type.__InputValue;
  }
});
Object.defineProperty(exports, '__EnumValue', {
  enumerable: true,
  get: function get() {
    return _type.__EnumValue;
  }
});
Object.defineProperty(exports, '__TypeKind', {
  enumerable: true,
  get: function get() {
    return _type.__TypeKind;
  }
});
Object.defineProperty(exports, 'isType', {
  enumerable: true,
  get: function get() {
    return _type.isType;
  }
});
Object.defineProperty(exports, 'isInputType', {
  enumerable: true,
  get: function get() {
    return _type.isInputType;
  }
});
Object.defineProperty(exports, 'isOutputType', {
  enumerable: true,
  get: function get() {
    return _type.isOutputType;
  }
});
Object.defineProperty(exports, 'isLeafType', {
  enumerable: true,
  get: function get() {
    return _type.isLeafType;
  }
});
Object.defineProperty(exports, 'isCompositeType', {
  enumerable: true,
  get: function get() {
    return _type.isCompositeType;
  }
});
Object.defineProperty(exports, 'isAbstractType', {
  enumerable: true,
  get: function get() {
    return _type.isAbstractType;
  }
});
Object.defineProperty(exports, 'isNamedType', {
  enumerable: true,
  get: function get() {
    return _type.isNamedType;
  }
});
Object.defineProperty(exports, 'assertType', {
  enumerable: true,
  get: function get() {
    return _type.assertType;
  }
});
Object.defineProperty(exports, 'assertInputType', {
  enumerable: true,
  get: function get() {
    return _type.assertInputType;
  }
});
Object.defineProperty(exports, 'assertOutputType', {
  enumerable: true,
  get: function get() {
    return _type.assertOutputType;
  }
});
Object.defineProperty(exports, 'assertLeafType', {
  enumerable: true,
  get: function get() {
    return _type.assertLeafType;
  }
});
Object.defineProperty(exports, 'assertCompositeType', {
  enumerable: true,
  get: function get() {
    return _type.assertCompositeType;
  }
});
Object.defineProperty(exports, 'assertAbstractType', {
  enumerable: true,
  get: function get() {
    return _type.assertAbstractType;
  }
});
Object.defineProperty(exports, 'assertNamedType', {
  enumerable: true,
  get: function get() {
    return _type.assertNamedType;
  }
});
Object.defineProperty(exports, 'getNullableType', {
  enumerable: true,
  get: function get() {
    return _type.getNullableType;
  }
});
Object.defineProperty(exports, 'getNamedType', {
  enumerable: true,
  get: function get() {
    return _type.getNamedType;
  }
});

var _language = require('./language');

Object.defineProperty(exports, 'Source', {
  enumerable: true,
  get: function get() {
    return _language.Source;
  }
});
Object.defineProperty(exports, 'getLocation', {
  enumerable: true,
  get: function get() {
    return _language.getLocation;
  }
});
Object.defineProperty(exports, 'parse', {
  enumerable: true,
  get: function get() {
    return _language.parse;
  }
});
Object.defineProperty(exports, 'parseValue', {
  enumerable: true,
  get: function get() {
    return _language.parseValue;
  }
});
Object.defineProperty(exports, 'parseType', {
  enumerable: true,
  get: function get() {
    return _language.parseType;
  }
});
Object.defineProperty(exports, 'print', {
  enumerable: true,
  get: function get() {
    return _language.print;
  }
});
Object.defineProperty(exports, 'visit', {
  enumerable: true,
  get: function get() {
    return _language.visit;
  }
});
Object.defineProperty(exports, 'visitInParallel', {
  enumerable: true,
  get: function get() {
    return _language.visitInParallel;
  }
});
Object.defineProperty(exports, 'visitWithTypeInfo', {
  enumerable: true,
  get: function get() {
    return _language.visitWithTypeInfo;
  }
});
Object.defineProperty(exports, 'getVisitFn', {
  enumerable: true,
  get: function get() {
    return _language.getVisitFn;
  }
});
Object.defineProperty(exports, 'Kind', {
  enumerable: true,
  get: function get() {
    return _language.Kind;
  }
});
Object.defineProperty(exports, 'TokenKind', {
  enumerable: true,
  get: function get() {
    return _language.TokenKind;
  }
});
Object.defineProperty(exports, 'BREAK', {
  enumerable: true,
  get: function get() {
    return _language.BREAK;
  }
});

var _execution = require('./execution');

Object.defineProperty(exports, 'execute', {
  enumerable: true,
  get: function get() {
    return _execution.execute;
  }
});
Object.defineProperty(exports, 'defaultFieldResolver', {
  enumerable: true,
  get: function get() {
    return _execution.defaultFieldResolver;
  }
});
Object.defineProperty(exports, 'responsePathAsArray', {
  enumerable: true,
  get: function get() {
    return _execution.responsePathAsArray;
  }
});
Object.defineProperty(exports, 'getDirectiveValues', {
  enumerable: true,
  get: function get() {
    return _execution.getDirectiveValues;
  }
});

var _subscription = require('./subscription');

Object.defineProperty(exports, 'subscribe', {
  enumerable: true,
  get: function get() {
    return _subscription.subscribe;
  }
});
Object.defineProperty(exports, 'createSourceEventStream', {
  enumerable: true,
  get: function get() {
    return _subscription.createSourceEventStream;
  }
});

var _validation = require('./validation');

Object.defineProperty(exports, 'validate', {
  enumerable: true,
  get: function get() {
    return _validation.validate;
  }
});
Object.defineProperty(exports, 'ValidationContext', {
  enumerable: true,
  get: function get() {
    return _validation.ValidationContext;
  }
});
Object.defineProperty(exports, 'specifiedRules', {
  enumerable: true,
  get: function get() {
    return _validation.specifiedRules;
  }
});
Object.defineProperty(exports, 'ArgumentsOfCorrectTypeRule', {
  enumerable: true,
  get: function get() {
    return _validation.ArgumentsOfCorrectTypeRule;
  }
});
Object.defineProperty(exports, 'DefaultValuesOfCorrectTypeRule', {
  enumerable: true,
  get: function get() {
    return _validation.DefaultValuesOfCorrectTypeRule;
  }
});
Object.defineProperty(exports, 'FieldsOnCorrectTypeRule', {
  enumerable: true,
  get: function get() {
    return _validation.FieldsOnCorrectTypeRule;
  }
});
Object.defineProperty(exports, 'FragmentsOnCompositeTypesRule', {
  enumerable: true,
  get: function get() {
    return _validation.FragmentsOnCompositeTypesRule;
  }
});
Object.defineProperty(exports, 'KnownArgumentNamesRule', {
  enumerable: true,
  get: function get() {
    return _validation.KnownArgumentNamesRule;
  }
});
Object.defineProperty(exports, 'KnownDirectivesRule', {
  enumerable: true,
  get: function get() {
    return _validation.KnownDirectivesRule;
  }
});
Object.defineProperty(exports, 'KnownFragmentNamesRule', {
  enumerable: true,
  get: function get() {
    return _validation.KnownFragmentNamesRule;
  }
});
Object.defineProperty(exports, 'KnownTypeNamesRule', {
  enumerable: true,
  get: function get() {
    return _validation.KnownTypeNamesRule;
  }
});
Object.defineProperty(exports, 'LoneAnonymousOperationRule', {
  enumerable: true,
  get: function get() {
    return _validation.LoneAnonymousOperationRule;
  }
});
Object.defineProperty(exports, 'NoFragmentCyclesRule', {
  enumerable: true,
  get: function get() {
    return _validation.NoFragmentCyclesRule;
  }
});
Object.defineProperty(exports, 'NoUndefinedVariablesRule', {
  enumerable: true,
  get: function get() {
    return _validation.NoUndefinedVariablesRule;
  }
});
Object.defineProperty(exports, 'NoUnusedFragmentsRule', {
  enumerable: true,
  get: function get() {
    return _validation.NoUnusedFragmentsRule;
  }
});
Object.defineProperty(exports, 'NoUnusedVariablesRule', {
  enumerable: true,
  get: function get() {
    return _validation.NoUnusedVariablesRule;
  }
});
Object.defineProperty(exports, 'OverlappingFieldsCanBeMergedRule', {
  enumerable: true,
  get: function get() {
    return _validation.OverlappingFieldsCanBeMergedRule;
  }
});
Object.defineProperty(exports, 'PossibleFragmentSpreadsRule', {
  enumerable: true,
  get: function get() {
    return _validation.PossibleFragmentSpreadsRule;
  }
});
Object.defineProperty(exports, 'ProvidedNonNullArgumentsRule', {
  enumerable: true,
  get: function get() {
    return _validation.ProvidedNonNullArgumentsRule;
  }
});
Object.defineProperty(exports, 'ScalarLeafsRule', {
  enumerable: true,
  get: function get() {
    return _validation.ScalarLeafsRule;
  }
});
Object.defineProperty(exports, 'SingleFieldSubscriptionsRule', {
  enumerable: true,
  get: function get() {
    return _validation.SingleFieldSubscriptionsRule;
  }
});
Object.defineProperty(exports, 'UniqueArgumentNamesRule', {
  enumerable: true,
  get: function get() {
    return _validation.UniqueArgumentNamesRule;
  }
});
Object.defineProperty(exports, 'UniqueDirectivesPerLocationRule', {
  enumerable: true,
  get: function get() {
    return _validation.UniqueDirectivesPerLocationRule;
  }
});
Object.defineProperty(exports, 'UniqueFragmentNamesRule', {
  enumerable: true,
  get: function get() {
    return _validation.UniqueFragmentNamesRule;
  }
});
Object.defineProperty(exports, 'UniqueInputFieldNamesRule', {
  enumerable: true,
  get: function get() {
    return _validation.UniqueInputFieldNamesRule;
  }
});
Object.defineProperty(exports, 'UniqueOperationNamesRule', {
  enumerable: true,
  get: function get() {
    return _validation.UniqueOperationNamesRule;
  }
});
Object.defineProperty(exports, 'UniqueVariableNamesRule', {
  enumerable: true,
  get: function get() {
    return _validation.UniqueVariableNamesRule;
  }
});
Object.defineProperty(exports, 'VariablesAreInputTypesRule', {
  enumerable: true,
  get: function get() {
    return _validation.VariablesAreInputTypesRule;
  }
});
Object.defineProperty(exports, 'VariablesInAllowedPositionRule', {
  enumerable: true,
  get: function get() {
    return _validation.VariablesInAllowedPositionRule;
  }
});

var _error = require('./error');

Object.defineProperty(exports, 'GraphQLError', {
  enumerable: true,
  get: function get() {
    return _error.GraphQLError;
  }
});
Object.defineProperty(exports, 'formatError', {
  enumerable: true,
  get: function get() {
    return _error.formatError;
  }
});

var _utilities = require('./utilities');

Object.defineProperty(exports, 'introspectionQuery', {
  enumerable: true,
  get: function get() {
    return _utilities.introspectionQuery;
  }
});
Object.defineProperty(exports, 'getOperationAST', {
  enumerable: true,
  get: function get() {
    return _utilities.getOperationAST;
  }
});
Object.defineProperty(exports, 'buildClientSchema', {
  enumerable: true,
  get: function get() {
    return _utilities.buildClientSchema;
  }
});
Object.defineProperty(exports, 'buildASTSchema', {
  enumerable: true,
  get: function get() {
    return _utilities.buildASTSchema;
  }
});
Object.defineProperty(exports, 'buildSchema', {
  enumerable: true,
  get: function get() {
    return _utilities.buildSchema;
  }
});
Object.defineProperty(exports, 'extendSchema', {
  enumerable: true,
  get: function get() {
    return _utilities.extendSchema;
  }
});
Object.defineProperty(exports, 'printSchema', {
  enumerable: true,
  get: function get() {
    return _utilities.printSchema;
  }
});
Object.defineProperty(exports, 'printIntrospectionSchema', {
  enumerable: true,
  get: function get() {
    return _utilities.printIntrospectionSchema;
  }
});
Object.defineProperty(exports, 'printType', {
  enumerable: true,
  get: function get() {
    return _utilities.printType;
  }
});
Object.defineProperty(exports, 'typeFromAST', {
  enumerable: true,
  get: function get() {
    return _utilities.typeFromAST;
  }
});
Object.defineProperty(exports, 'valueFromAST', {
  enumerable: true,
  get: function get() {
    return _utilities.valueFromAST;
  }
});
Object.defineProperty(exports, 'astFromValue', {
  enumerable: true,
  get: function get() {
    return _utilities.astFromValue;
  }
});
Object.defineProperty(exports, 'TypeInfo', {
  enumerable: true,
  get: function get() {
    return _utilities.TypeInfo;
  }
});
Object.defineProperty(exports, 'isValidJSValue', {
  enumerable: true,
  get: function get() {
    return _utilities.isValidJSValue;
  }
});
Object.defineProperty(exports, 'isValidLiteralValue', {
  enumerable: true,
  get: function get() {
    return _utilities.isValidLiteralValue;
  }
});
Object.defineProperty(exports, 'concatAST', {
  enumerable: true,
  get: function get() {
    return _utilities.concatAST;
  }
});
Object.defineProperty(exports, 'separateOperations', {
  enumerable: true,
  get: function get() {
    return _utilities.separateOperations;
  }
});
Object.defineProperty(exports, 'isEqualType', {
  enumerable: true,
  get: function get() {
    return _utilities.isEqualType;
  }
});
Object.defineProperty(exports, 'isTypeSubTypeOf', {
  enumerable: true,
  get: function get() {
    return _utilities.isTypeSubTypeOf;
  }
});
Object.defineProperty(exports, 'doTypesOverlap', {
  enumerable: true,
  get: function get() {
    return _utilities.doTypesOverlap;
  }
});
Object.defineProperty(exports, 'assertValidName', {
  enumerable: true,
  get: function get() {
    return _utilities.assertValidName;
  }
});
Object.defineProperty(exports, 'findBreakingChanges', {
  enumerable: true,
  get: function get() {
    return _utilities.findBreakingChanges;
  }
});
Object.defineProperty(exports, 'BreakingChangeType', {
  enumerable: true,
  get: function get() {
    return _utilities.BreakingChangeType;
  }
});
Object.defineProperty(exports, 'DangerousChangeType', {
  enumerable: true,
  get: function get() {
    return _utilities.DangerousChangeType;
  }
});
Object.defineProperty(exports, 'findDeprecatedUsages', {
  enumerable: true,
  get: function get() {
    return _utilities.findDeprecatedUsages;
  }
});
},{"./error":88,"./execution":92,"./graphql":94,"./language":104,"./subscription":112,"./type":117,"./utilities":131,"./validation":140}],96:[function(require,module,exports){
"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = find;

/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

function find(list, predicate) {
  for (var i = 0; i < list.length; i++) {
    if (predicate(list[i])) {
      return list[i];
    }
  }
}
},{}],97:[function(require,module,exports){
"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = invariant;

/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

function invariant(condition, message) {
  if (!condition) {
    throw new Error(message);
  }
}
},{}],98:[function(require,module,exports){
"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = isInvalid;

/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

/**
 * Returns true if a value is undefined, or NaN.
 */
function isInvalid(value) {
  return value === undefined || value !== value;
}
},{}],99:[function(require,module,exports){
"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = isNullish;

/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

/**
 * Returns true if a value is null, undefined, or NaN.
 */
function isNullish(value) {
  return value === null || value === undefined || value !== value;
}
},{}],100:[function(require,module,exports){
"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = keyMap;

/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

/**
 * Creates a keyed JS object from an array, given a function to produce the keys
 * for each value in the array.
 *
 * This provides a convenient lookup for the array items if the key function
 * produces unique results.
 *
 *     const phoneBook = [
 *       { name: 'Jon', num: '555-1234' },
 *       { name: 'Jenny', num: '867-5309' }
 *     ]
 *
 *     // { Jon: { name: 'Jon', num: '555-1234' },
 *     //   Jenny: { name: 'Jenny', num: '867-5309' } }
 *     const entriesByName = keyMap(
 *       phoneBook,
 *       entry => entry.name
 *     )
 *
 *     // { name: 'Jenny', num: '857-6309' }
 *     const jennyEntry = entriesByName['Jenny']
 *
 */
function keyMap(list, keyFn) {
  return list.reduce(function (map, item) {
    return map[keyFn(item)] = item, map;
  }, Object.create(null));
}
},{}],101:[function(require,module,exports){
"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = keyValMap;

/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

/**
 * Creates a keyed JS object from an array, given a function to produce the keys
 * and a function to produce the values from each item in the array.
 *
 *     const phoneBook = [
 *       { name: 'Jon', num: '555-1234' },
 *       { name: 'Jenny', num: '867-5309' }
 *     ]
 *
 *     // { Jon: '555-1234', Jenny: '867-5309' }
 *     const phonesByName = keyValMap(
 *       phoneBook,
 *       entry => entry.name,
 *       entry => entry.num
 *     )
 *
 */
function keyValMap(list, keyFn, valFn) {
  return list.reduce(function (map, item) {
    return map[keyFn(item)] = valFn(item), map;
  }, Object.create(null));
}
},{}],102:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = quotedOrList;

/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

var MAX_LENGTH = 5;

/**
 * Given [ A, B, C ] return '"A", "B", or "C"'.
 */
function quotedOrList(items) {
  var selected = items.slice(0, MAX_LENGTH);
  return selected.map(function (item) {
    return '"' + item + '"';
  }).reduce(function (list, quoted, index) {
    return list + (selected.length > 2 ? ', ' : ' ') + (index === selected.length - 1 ? 'or ' : '') + quoted;
  });
}
},{}],103:[function(require,module,exports){
"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = suggestionList;

/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

/**
 * Given an invalid input string and a list of valid options, returns a filtered
 * list of valid options sorted based on their similarity with the input.
 */
function suggestionList(input, options) {
  var optionsByDistance = Object.create(null);
  var oLength = options.length;
  var inputThreshold = input.length / 2;
  for (var i = 0; i < oLength; i++) {
    var distance = lexicalDistance(input, options[i]);
    var threshold = Math.max(inputThreshold, options[i].length / 2, 1);
    if (distance <= threshold) {
      optionsByDistance[options[i]] = distance;
    }
  }
  return Object.keys(optionsByDistance).sort(function (a, b) {
    return optionsByDistance[a] - optionsByDistance[b];
  });
}

/**
 * Computes the lexical distance between strings A and B.
 *
 * The "distance" between two strings is given by counting the minimum number
 * of edits needed to transform string A into string B. An edit can be an
 * insertion, deletion, or substitution of a single character, or a swap of two
 * adjacent characters.
 *
 * This distance can be useful for detecting typos in input or sorting
 *
 * @param {string} a
 * @param {string} b
 * @return {int} distance in number of edits
 */
function lexicalDistance(a, b) {
  var i = void 0;
  var j = void 0;
  var d = [];
  var aLength = a.length;
  var bLength = b.length;

  for (i = 0; i <= aLength; i++) {
    d[i] = [i];
  }

  for (j = 1; j <= bLength; j++) {
    d[0][j] = j;
  }

  for (i = 1; i <= aLength; i++) {
    for (j = 1; j <= bLength; j++) {
      var cost = a[i - 1] === b[j - 1] ? 0 : 1;

      d[i][j] = Math.min(d[i - 1][j] + 1, d[i][j - 1] + 1, d[i - 1][j - 1] + cost);

      if (i > 1 && j > 1 && a[i - 1] === b[j - 2] && a[i - 2] === b[j - 1]) {
        d[i][j] = Math.min(d[i][j], d[i - 2][j - 2] + cost);
      }
    }
  }

  return d[aLength][bLength];
}
},{}],104:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.BREAK = exports.getVisitFn = exports.visitWithTypeInfo = exports.visitInParallel = exports.visit = exports.Source = exports.print = exports.parseType = exports.parseValue = exports.parse = exports.TokenKind = exports.createLexer = exports.Kind = exports.getLocation = undefined;

var _location = require('./location');

Object.defineProperty(exports, 'getLocation', {
  enumerable: true,
  get: function get() {
    return _location.getLocation;
  }
});

var _lexer = require('./lexer');

Object.defineProperty(exports, 'createLexer', {
  enumerable: true,
  get: function get() {
    return _lexer.createLexer;
  }
});
Object.defineProperty(exports, 'TokenKind', {
  enumerable: true,
  get: function get() {
    return _lexer.TokenKind;
  }
});

var _parser = require('./parser');

Object.defineProperty(exports, 'parse', {
  enumerable: true,
  get: function get() {
    return _parser.parse;
  }
});
Object.defineProperty(exports, 'parseValue', {
  enumerable: true,
  get: function get() {
    return _parser.parseValue;
  }
});
Object.defineProperty(exports, 'parseType', {
  enumerable: true,
  get: function get() {
    return _parser.parseType;
  }
});

var _printer = require('./printer');

Object.defineProperty(exports, 'print', {
  enumerable: true,
  get: function get() {
    return _printer.print;
  }
});

var _source = require('./source');

Object.defineProperty(exports, 'Source', {
  enumerable: true,
  get: function get() {
    return _source.Source;
  }
});

var _visitor = require('./visitor');

Object.defineProperty(exports, 'visit', {
  enumerable: true,
  get: function get() {
    return _visitor.visit;
  }
});
Object.defineProperty(exports, 'visitInParallel', {
  enumerable: true,
  get: function get() {
    return _visitor.visitInParallel;
  }
});
Object.defineProperty(exports, 'visitWithTypeInfo', {
  enumerable: true,
  get: function get() {
    return _visitor.visitWithTypeInfo;
  }
});
Object.defineProperty(exports, 'getVisitFn', {
  enumerable: true,
  get: function get() {
    return _visitor.getVisitFn;
  }
});
Object.defineProperty(exports, 'BREAK', {
  enumerable: true,
  get: function get() {
    return _visitor.BREAK;
  }
});

var _kinds = require('./kinds');

var Kind = _interopRequireWildcard(_kinds);

function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }

exports.Kind = Kind;
},{"./kinds":105,"./lexer":106,"./location":107,"./parser":108,"./printer":109,"./source":110,"./visitor":111}],105:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

// Name

var NAME = exports.NAME = 'Name';

// Document

var DOCUMENT = exports.DOCUMENT = 'Document';
var OPERATION_DEFINITION = exports.OPERATION_DEFINITION = 'OperationDefinition';
var VARIABLE_DEFINITION = exports.VARIABLE_DEFINITION = 'VariableDefinition';
var VARIABLE = exports.VARIABLE = 'Variable';
var SELECTION_SET = exports.SELECTION_SET = 'SelectionSet';
var FIELD = exports.FIELD = 'Field';
var ARGUMENT = exports.ARGUMENT = 'Argument';

// Fragments

var FRAGMENT_SPREAD = exports.FRAGMENT_SPREAD = 'FragmentSpread';
var INLINE_FRAGMENT = exports.INLINE_FRAGMENT = 'InlineFragment';
var FRAGMENT_DEFINITION = exports.FRAGMENT_DEFINITION = 'FragmentDefinition';

// Values

var INT = exports.INT = 'IntValue';
var FLOAT = exports.FLOAT = 'FloatValue';
var STRING = exports.STRING = 'StringValue';
var BOOLEAN = exports.BOOLEAN = 'BooleanValue';
var NULL = exports.NULL = 'NullValue';
var ENUM = exports.ENUM = 'EnumValue';
var LIST = exports.LIST = 'ListValue';
var OBJECT = exports.OBJECT = 'ObjectValue';
var OBJECT_FIELD = exports.OBJECT_FIELD = 'ObjectField';

// Directives

var DIRECTIVE = exports.DIRECTIVE = 'Directive';

// Types

var NAMED_TYPE = exports.NAMED_TYPE = 'NamedType';
var LIST_TYPE = exports.LIST_TYPE = 'ListType';
var NON_NULL_TYPE = exports.NON_NULL_TYPE = 'NonNullType';

// Type System Definitions

var SCHEMA_DEFINITION = exports.SCHEMA_DEFINITION = 'SchemaDefinition';
var OPERATION_TYPE_DEFINITION = exports.OPERATION_TYPE_DEFINITION = 'OperationTypeDefinition';

// Type Definitions

var SCALAR_TYPE_DEFINITION = exports.SCALAR_TYPE_DEFINITION = 'ScalarTypeDefinition';
var OBJECT_TYPE_DEFINITION = exports.OBJECT_TYPE_DEFINITION = 'ObjectTypeDefinition';
var FIELD_DEFINITION = exports.FIELD_DEFINITION = 'FieldDefinition';
var INPUT_VALUE_DEFINITION = exports.INPUT_VALUE_DEFINITION = 'InputValueDefinition';
var INTERFACE_TYPE_DEFINITION = exports.INTERFACE_TYPE_DEFINITION = 'InterfaceTypeDefinition';
var UNION_TYPE_DEFINITION = exports.UNION_TYPE_DEFINITION = 'UnionTypeDefinition';
var ENUM_TYPE_DEFINITION = exports.ENUM_TYPE_DEFINITION = 'EnumTypeDefinition';
var ENUM_VALUE_DEFINITION = exports.ENUM_VALUE_DEFINITION = 'EnumValueDefinition';
var INPUT_OBJECT_TYPE_DEFINITION = exports.INPUT_OBJECT_TYPE_DEFINITION = 'InputObjectTypeDefinition';

// Type Extensions

var TYPE_EXTENSION_DEFINITION = exports.TYPE_EXTENSION_DEFINITION = 'TypeExtensionDefinition';

// Directive Definitions

var DIRECTIVE_DEFINITION = exports.DIRECTIVE_DEFINITION = 'DirectiveDefinition';
},{}],106:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.TokenKind = undefined;
exports.createLexer = createLexer;
exports.getTokenDesc = getTokenDesc;

var _error = require('../error');

/**
 * Given a Source object, this returns a Lexer for that source.
 * A Lexer is a stateful stream generator in that every time
 * it is advanced, it returns the next token in the Source. Assuming the
 * source lexes, the final Token emitted by the lexer will be of kind
 * EOF, after which the lexer will repeatedly return the same EOF token
 * whenever called.
 */
function createLexer(source, options) {
  var startOfFileToken = new Tok(SOF, 0, 0, 0, 0, null);
  var lexer = {
    source: source,
    options: options,
    lastToken: startOfFileToken,
    token: startOfFileToken,
    line: 1,
    lineStart: 0,
    advance: advanceLexer
  };
  return lexer;
} /*  /
  /**
   *  Copyright (c) 2015, Facebook, Inc.
   *  All rights reserved.
   *
   *  This source code is licensed under the BSD-style license found in the
   *  LICENSE file in the root directory of this source tree. An additional grant
   *  of patent rights can be found in the PATENTS file in the same directory.
   */

function advanceLexer() {
  var token = this.lastToken = this.token;
  if (token.kind !== EOF) {
    do {
      token = token.next = readToken(this, token);
    } while (token.kind === COMMENT);
    this.token = token;
  }
  return token;
}

/**
 * The return type of createLexer.
 */


// Each kind of token.
var SOF = '<SOF>';
var EOF = '<EOF>';
var BANG = '!';
var DOLLAR = '$';
var PAREN_L = '(';
var PAREN_R = ')';
var SPREAD = '...';
var COLON = ':';
var EQUALS = '=';
var AT = '@';
var BRACKET_L = '[';
var BRACKET_R = ']';
var BRACE_L = '{';
var PIPE = '|';
var BRACE_R = '}';
var NAME = 'Name';
var INT = 'Int';
var FLOAT = 'Float';
var STRING = 'String';
var COMMENT = 'Comment';

/**
 * An exported enum describing the different kinds of tokens that the
 * lexer emits.
 */
var TokenKind = exports.TokenKind = {
  SOF: SOF,
  EOF: EOF,
  BANG: BANG,
  DOLLAR: DOLLAR,
  PAREN_L: PAREN_L,
  PAREN_R: PAREN_R,
  SPREAD: SPREAD,
  COLON: COLON,
  EQUALS: EQUALS,
  AT: AT,
  BRACKET_L: BRACKET_L,
  BRACKET_R: BRACKET_R,
  BRACE_L: BRACE_L,
  PIPE: PIPE,
  BRACE_R: BRACE_R,
  NAME: NAME,
  INT: INT,
  FLOAT: FLOAT,
  STRING: STRING,
  COMMENT: COMMENT
};

/**
 * A helper function to describe a token as a string for debugging
 */
function getTokenDesc(token) {
  var value = token.value;
  return value ? token.kind + ' "' + value + '"' : token.kind;
}

var charCodeAt = String.prototype.charCodeAt;
var slice = String.prototype.slice;

/**
 * Helper function for constructing the Token object.
 */
function Tok(kind, start, end, line, column, prev, value) {
  this.kind = kind;
  this.start = start;
  this.end = end;
  this.line = line;
  this.column = column;
  this.value = value;
  this.prev = prev;
  this.next = null;
}

// Print a simplified form when appearing in JSON/util.inspect.
Tok.prototype.toJSON = Tok.prototype.inspect = function toJSON() {
  return {
    kind: this.kind,
    value: this.value,
    line: this.line,
    column: this.column
  };
};

function printCharCode(code) {
  return (
    // NaN/undefined represents access beyond the end of the file.
    isNaN(code) ? EOF :
    // Trust JSON for ASCII.
    code < 0x007F ? JSON.stringify(String.fromCharCode(code)) :
    // Otherwise print the escaped form.
    '"\\u' + ('00' + code.toString(16).toUpperCase()).slice(-4) + '"'
  );
}

/**
 * Gets the next token from the source starting at the given position.
 *
 * This skips over whitespace and comments until it finds the next lexable
 * token, then lexes punctuators immediately or calls the appropriate helper
 * function for more complicated tokens.
 */
function readToken(lexer, prev) {
  var source = lexer.source;
  var body = source.body;
  var bodyLength = body.length;

  var position = positionAfterWhitespace(body, prev.end, lexer);
  var line = lexer.line;
  var col = 1 + position - lexer.lineStart;

  if (position >= bodyLength) {
    return new Tok(EOF, bodyLength, bodyLength, line, col, prev);
  }

  var code = charCodeAt.call(body, position);

  // SourceCharacter
  if (code < 0x0020 && code !== 0x0009 && code !== 0x000A && code !== 0x000D) {
    throw (0, _error.syntaxError)(source, position, 'Cannot contain the invalid character ' + printCharCode(code) + '.');
  }

  switch (code) {
    // !
    case 33:
      return new Tok(BANG, position, position + 1, line, col, prev);
    // #
    case 35:
      return readComment(source, position, line, col, prev);
    // $
    case 36:
      return new Tok(DOLLAR, position, position + 1, line, col, prev);
    // (
    case 40:
      return new Tok(PAREN_L, position, position + 1, line, col, prev);
    // )
    case 41:
      return new Tok(PAREN_R, position, position + 1, line, col, prev);
    // .
    case 46:
      if (charCodeAt.call(body, position + 1) === 46 && charCodeAt.call(body, position + 2) === 46) {
        return new Tok(SPREAD, position, position + 3, line, col, prev);
      }
      break;
    // :
    case 58:
      return new Tok(COLON, position, position + 1, line, col, prev);
    // =
    case 61:
      return new Tok(EQUALS, position, position + 1, line, col, prev);
    // @
    case 64:
      return new Tok(AT, position, position + 1, line, col, prev);
    // [
    case 91:
      return new Tok(BRACKET_L, position, position + 1, line, col, prev);
    // ]
    case 93:
      return new Tok(BRACKET_R, position, position + 1, line, col, prev);
    // {
    case 123:
      return new Tok(BRACE_L, position, position + 1, line, col, prev);
    // |
    case 124:
      return new Tok(PIPE, position, position + 1, line, col, prev);
    // }
    case 125:
      return new Tok(BRACE_R, position, position + 1, line, col, prev);
    // A-Z _ a-z
    case 65:case 66:case 67:case 68:case 69:case 70:case 71:case 72:
    case 73:case 74:case 75:case 76:case 77:case 78:case 79:case 80:
    case 81:case 82:case 83:case 84:case 85:case 86:case 87:case 88:
    case 89:case 90:
    case 95:
    case 97:case 98:case 99:case 100:case 101:case 102:case 103:case 104:
    case 105:case 106:case 107:case 108:case 109:case 110:case 111:
    case 112:case 113:case 114:case 115:case 116:case 117:case 118:
    case 119:case 120:case 121:case 122:
      return readName(source, position, line, col, prev);
    // - 0-9
    case 45:
    case 48:case 49:case 50:case 51:case 52:
    case 53:case 54:case 55:case 56:case 57:
      return readNumber(source, position, code, line, col, prev);
    // "
    case 34:
      return readString(source, position, line, col, prev);
  }

  throw (0, _error.syntaxError)(source, position, unexpectedCharacterMessage(code));
}

/**
 * Report a message that an unexpected character was encountered.
 */
function unexpectedCharacterMessage(code) {
  if (code === 39) {
    // '
    return 'Unexpected single quote character (\'), did you mean to use ' + 'a double quote (")?';
  }

  return 'Cannot parse the unexpected character ' + printCharCode(code) + '.';
}

/**
 * Reads from body starting at startPosition until it finds a non-whitespace
 * or commented character, then returns the position of that character for
 * lexing.
 */
function positionAfterWhitespace(body, startPosition, lexer) {
  var bodyLength = body.length;
  var position = startPosition;
  while (position < bodyLength) {
    var code = charCodeAt.call(body, position);
    // tab | space | comma | BOM
    if (code === 9 || code === 32 || code === 44 || code === 0xFEFF) {
      ++position;
    } else if (code === 10) {
      // new line
      ++position;
      ++lexer.line;
      lexer.lineStart = position;
    } else if (code === 13) {
      // carriage return
      if (charCodeAt.call(body, position + 1) === 10) {
        position += 2;
      } else {
        ++position;
      }
      ++lexer.line;
      lexer.lineStart = position;
    } else {
      break;
    }
  }
  return position;
}

/**
 * Reads a comment token from the source file.
 *
 * #[\u0009\u0020-\uFFFF]*
 */
function readComment(source, start, line, col, prev) {
  var body = source.body;
  var code = void 0;
  var position = start;

  do {
    code = charCodeAt.call(body, ++position);
  } while (code !== null && (
  // SourceCharacter but not LineTerminator
  code > 0x001F || code === 0x0009));

  return new Tok(COMMENT, start, position, line, col, prev, slice.call(body, start + 1, position));
}

/**
 * Reads a number token from the source file, either a float
 * or an int depending on whether a decimal point appears.
 *
 * Int:   -?(0|[1-9][0-9]*)
 * Float: -?(0|[1-9][0-9]*)(\.[0-9]+)?((E|e)(+|-)?[0-9]+)?
 */
function readNumber(source, start, firstCode, line, col, prev) {
  var body = source.body;
  var code = firstCode;
  var position = start;
  var isFloat = false;

  if (code === 45) {
    // -
    code = charCodeAt.call(body, ++position);
  }

  if (code === 48) {
    // 0
    code = charCodeAt.call(body, ++position);
    if (code >= 48 && code <= 57) {
      throw (0, _error.syntaxError)(source, position, 'Invalid number, unexpected digit after 0: ' + printCharCode(code) + '.');
    }
  } else {
    position = readDigits(source, position, code);
    code = charCodeAt.call(body, position);
  }

  if (code === 46) {
    // .
    isFloat = true;

    code = charCodeAt.call(body, ++position);
    position = readDigits(source, position, code);
    code = charCodeAt.call(body, position);
  }

  if (code === 69 || code === 101) {
    // E e
    isFloat = true;

    code = charCodeAt.call(body, ++position);
    if (code === 43 || code === 45) {
      // + -
      code = charCodeAt.call(body, ++position);
    }
    position = readDigits(source, position, code);
  }

  return new Tok(isFloat ? FLOAT : INT, start, position, line, col, prev, slice.call(body, start, position));
}

/**
 * Returns the new position in the source after reading digits.
 */
function readDigits(source, start, firstCode) {
  var body = source.body;
  var position = start;
  var code = firstCode;
  if (code >= 48 && code <= 57) {
    // 0 - 9
    do {
      code = charCodeAt.call(body, ++position);
    } while (code >= 48 && code <= 57); // 0 - 9
    return position;
  }
  throw (0, _error.syntaxError)(source, position, 'Invalid number, expected digit but got: ' + printCharCode(code) + '.');
}

/**
 * Reads a string token from the source file.
 *
 * "([^"\\\u000A\u000D]|(\\(u[0-9a-fA-F]{4}|["\\/bfnrt])))*"
 */
function readString(source, start, line, col, prev) {
  var body = source.body;
  var position = start + 1;
  var chunkStart = position;
  var code = 0;
  var value = '';

  while (position < body.length && (code = charCodeAt.call(body, position)) !== null &&
  // not LineTerminator
  code !== 0x000A && code !== 0x000D &&
  // not Quote (")
  code !== 34) {
    // SourceCharacter
    if (code < 0x0020 && code !== 0x0009) {
      throw (0, _error.syntaxError)(source, position, 'Invalid character within String: ' + printCharCode(code) + '.');
    }

    ++position;
    if (code === 92) {
      // \
      value += slice.call(body, chunkStart, position - 1);
      code = charCodeAt.call(body, position);
      switch (code) {
        case 34:
          value += '"';break;
        case 47:
          value += '/';break;
        case 92:
          value += '\\';break;
        case 98:
          value += '\b';break;
        case 102:
          value += '\f';break;
        case 110:
          value += '\n';break;
        case 114:
          value += '\r';break;
        case 116:
          value += '\t';break;
        case 117:
          // u
          var charCode = uniCharCode(charCodeAt.call(body, position + 1), charCodeAt.call(body, position + 2), charCodeAt.call(body, position + 3), charCodeAt.call(body, position + 4));
          if (charCode < 0) {
            throw (0, _error.syntaxError)(source, position, 'Invalid character escape sequence: ' + ('\\u' + body.slice(position + 1, position + 5) + '.'));
          }
          value += String.fromCharCode(charCode);
          position += 4;
          break;
        default:
          throw (0, _error.syntaxError)(source, position, 'Invalid character escape sequence: \\' + String.fromCharCode(code) + '.');
      }
      ++position;
      chunkStart = position;
    }
  }

  if (code !== 34) {
    // quote (")
    throw (0, _error.syntaxError)(source, position, 'Unterminated string.');
  }

  value += slice.call(body, chunkStart, position);
  return new Tok(STRING, start, position + 1, line, col, prev, value);
}

/**
 * Converts four hexadecimal chars to the integer that the
 * string represents. For example, uniCharCode('0','0','0','f')
 * will return 15, and uniCharCode('0','0','f','f') returns 255.
 *
 * Returns a negative number on error, if a char was invalid.
 *
 * This is implemented by noting that char2hex() returns -1 on error,
 * which means the result of ORing the char2hex() will also be negative.
 */
function uniCharCode(a, b, c, d) {
  return char2hex(a) << 12 | char2hex(b) << 8 | char2hex(c) << 4 | char2hex(d);
}

/**
 * Converts a hex character to its integer value.
 * '0' becomes 0, '9' becomes 9
 * 'A' becomes 10, 'F' becomes 15
 * 'a' becomes 10, 'f' becomes 15
 *
 * Returns -1 on error.
 */
function char2hex(a) {
  return a >= 48 && a <= 57 ? a - 48 : // 0-9
  a >= 65 && a <= 70 ? a - 55 : // A-F
  a >= 97 && a <= 102 ? a - 87 : // a-f
  -1;
}

/**
 * Reads an alphanumeric + underscore name from the source.
 *
 * [_A-Za-z][_0-9A-Za-z]*
 */
function readName(source, position, line, col, prev) {
  var body = source.body;
  var bodyLength = body.length;
  var end = position + 1;
  var code = 0;
  while (end !== bodyLength && (code = charCodeAt.call(body, end)) !== null && (code === 95 || // _
  code >= 48 && code <= 57 || // 0-9
  code >= 65 && code <= 90 || // A-Z
  code >= 97 && code <= 122 // a-z
  )) {
    ++end;
  }
  return new Tok(NAME, position, end, line, col, prev, slice.call(body, position, end));
}
},{"../error":88}],107:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.getLocation = getLocation;


/**
 * Takes a Source and a UTF-8 character offset, and returns the corresponding
 * line and column as a SourceLocation.
 */

/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

function getLocation(source, position) {
  var lineRegexp = /\r\n|[\n\r]/g;
  var line = 1;
  var column = position + 1;
  var match = void 0;
  while ((match = lineRegexp.exec(source.body)) && match.index < position) {
    line += 1;
    column = position + 1 - (match.index + match[0].length);
  }
  return { line: line, column: column };
}

/**
 * Represents a location in a Source.
 */
},{}],108:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.parse = parse;
exports.parseValue = parseValue;
exports.parseType = parseType;
exports.parseConstValue = parseConstValue;
exports.parseTypeReference = parseTypeReference;
exports.parseNamedType = parseNamedType;

var _source = require('./source');

var _error = require('../error');

var _lexer = require('./lexer');

var _kinds = require('./kinds');

/**
 * Given a GraphQL source, parses it into a Document.
 * Throws GraphQLError if a syntax error is encountered.
 */


/**
 * Configuration options to control parser behavior
 */

/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

function parse(source, options) {
  var sourceObj = typeof source === 'string' ? new _source.Source(source) : source;
  if (!(sourceObj instanceof _source.Source)) {
    throw new TypeError('Must provide Source. Received: ' + String(sourceObj));
  }
  var lexer = (0, _lexer.createLexer)(sourceObj, options || {});
  return parseDocument(lexer);
}

/**
 * Given a string containing a GraphQL value (ex. `[42]`), parse the AST for
 * that value.
 * Throws GraphQLError if a syntax error is encountered.
 *
 * This is useful within tools that operate upon GraphQL Values directly and
 * in isolation of complete GraphQL documents.
 *
 * Consider providing the results to the utility function: valueFromAST().
 */
function parseValue(source, options) {
  var sourceObj = typeof source === 'string' ? new _source.Source(source) : source;
  var lexer = (0, _lexer.createLexer)(sourceObj, options || {});
  expect(lexer, _lexer.TokenKind.SOF);
  var value = parseValueLiteral(lexer, false);
  expect(lexer, _lexer.TokenKind.EOF);
  return value;
}

/**
 * Given a string containing a GraphQL Type (ex. `[Int!]`), parse the AST for
 * that type.
 * Throws GraphQLError if a syntax error is encountered.
 *
 * This is useful within tools that operate upon GraphQL Types directly and
 * in isolation of complete GraphQL documents.
 *
 * Consider providing the results to the utility function: typeFromAST().
 */
function parseType(source, options) {
  var sourceObj = typeof source === 'string' ? new _source.Source(source) : source;
  var lexer = (0, _lexer.createLexer)(sourceObj, options || {});
  expect(lexer, _lexer.TokenKind.SOF);
  var type = parseTypeReference(lexer);
  expect(lexer, _lexer.TokenKind.EOF);
  return type;
}

/**
 * Converts a name lex token into a name parse node.
 */
function parseName(lexer) {
  var token = expect(lexer, _lexer.TokenKind.NAME);
  return {
    kind: _kinds.NAME,
    value: token.value,
    loc: loc(lexer, token)
  };
}

// Implements the parsing rules in the Document section.

/**
 * Document : Definition+
 */
function parseDocument(lexer) {
  var start = lexer.token;
  expect(lexer, _lexer.TokenKind.SOF);
  var definitions = [];
  do {
    definitions.push(parseDefinition(lexer));
  } while (!skip(lexer, _lexer.TokenKind.EOF));

  return {
    kind: _kinds.DOCUMENT,
    definitions: definitions,
    loc: loc(lexer, start)
  };
}

/**
 * Definition :
 *   - OperationDefinition
 *   - FragmentDefinition
 *   - TypeSystemDefinition
 */
function parseDefinition(lexer) {
  if (peek(lexer, _lexer.TokenKind.BRACE_L)) {
    return parseOperationDefinition(lexer);
  }

  if (peek(lexer, _lexer.TokenKind.NAME)) {
    switch (lexer.token.value) {
      // Note: subscription is an experimental non-spec addition.
      case 'query':
      case 'mutation':
      case 'subscription':
        return parseOperationDefinition(lexer);

      case 'fragment':
        return parseFragmentDefinition(lexer);

      // Note: the Type System IDL is an experimental non-spec addition.
      case 'schema':
      case 'scalar':
      case 'type':
      case 'interface':
      case 'union':
      case 'enum':
      case 'input':
      case 'extend':
      case 'directive':
        return parseTypeSystemDefinition(lexer);
    }
  }

  throw unexpected(lexer);
}

// Implements the parsing rules in the Operations section.

/**
 * OperationDefinition :
 *  - SelectionSet
 *  - OperationType Name? VariableDefinitions? Directives? SelectionSet
 */
function parseOperationDefinition(lexer) {
  var start = lexer.token;
  if (peek(lexer, _lexer.TokenKind.BRACE_L)) {
    return {
      kind: _kinds.OPERATION_DEFINITION,
      operation: 'query',
      name: null,
      variableDefinitions: null,
      directives: [],
      selectionSet: parseSelectionSet(lexer),
      loc: loc(lexer, start)
    };
  }
  var operation = parseOperationType(lexer);
  var name = void 0;
  if (peek(lexer, _lexer.TokenKind.NAME)) {
    name = parseName(lexer);
  }
  return {
    kind: _kinds.OPERATION_DEFINITION,
    operation: operation,
    name: name,
    variableDefinitions: parseVariableDefinitions(lexer),
    directives: parseDirectives(lexer),
    selectionSet: parseSelectionSet(lexer),
    loc: loc(lexer, start)
  };
}

/**
 * OperationType : one of query mutation subscription
 */
function parseOperationType(lexer) {
  var operationToken = expect(lexer, _lexer.TokenKind.NAME);
  switch (operationToken.value) {
    case 'query':
      return 'query';
    case 'mutation':
      return 'mutation';
    // Note: subscription is an experimental non-spec addition.
    case 'subscription':
      return 'subscription';
  }

  throw unexpected(lexer, operationToken);
}

/**
 * VariableDefinitions : ( VariableDefinition+ )
 */
function parseVariableDefinitions(lexer) {
  return peek(lexer, _lexer.TokenKind.PAREN_L) ? many(lexer, _lexer.TokenKind.PAREN_L, parseVariableDefinition, _lexer.TokenKind.PAREN_R) : [];
}

/**
 * VariableDefinition : Variable : Type DefaultValue?
 */
function parseVariableDefinition(lexer) {
  var start = lexer.token;
  return {
    kind: _kinds.VARIABLE_DEFINITION,
    variable: parseVariable(lexer),
    type: (expect(lexer, _lexer.TokenKind.COLON), parseTypeReference(lexer)),
    defaultValue: skip(lexer, _lexer.TokenKind.EQUALS) ? parseValueLiteral(lexer, true) : null,
    loc: loc(lexer, start)
  };
}

/**
 * Variable : $ Name
 */
function parseVariable(lexer) {
  var start = lexer.token;
  expect(lexer, _lexer.TokenKind.DOLLAR);
  return {
    kind: _kinds.VARIABLE,
    name: parseName(lexer),
    loc: loc(lexer, start)
  };
}

/**
 * SelectionSet : { Selection+ }
 */
function parseSelectionSet(lexer) {
  var start = lexer.token;
  return {
    kind: _kinds.SELECTION_SET,
    selections: many(lexer, _lexer.TokenKind.BRACE_L, parseSelection, _lexer.TokenKind.BRACE_R),
    loc: loc(lexer, start)
  };
}

/**
 * Selection :
 *   - Field
 *   - FragmentSpread
 *   - InlineFragment
 */
function parseSelection(lexer) {
  return peek(lexer, _lexer.TokenKind.SPREAD) ? parseFragment(lexer) : parseField(lexer);
}

/**
 * Field : Alias? Name Arguments? Directives? SelectionSet?
 *
 * Alias : Name :
 */
function parseField(lexer) {
  var start = lexer.token;

  var nameOrAlias = parseName(lexer);
  var alias = void 0;
  var name = void 0;
  if (skip(lexer, _lexer.TokenKind.COLON)) {
    alias = nameOrAlias;
    name = parseName(lexer);
  } else {
    alias = null;
    name = nameOrAlias;
  }

  return {
    kind: _kinds.FIELD,
    alias: alias,
    name: name,
    arguments: parseArguments(lexer),
    directives: parseDirectives(lexer),
    selectionSet: peek(lexer, _lexer.TokenKind.BRACE_L) ? parseSelectionSet(lexer) : null,
    loc: loc(lexer, start)
  };
}

/**
 * Arguments : ( Argument+ )
 */
function parseArguments(lexer) {
  return peek(lexer, _lexer.TokenKind.PAREN_L) ? many(lexer, _lexer.TokenKind.PAREN_L, parseArgument, _lexer.TokenKind.PAREN_R) : [];
}

/**
 * Argument : Name : Value
 */
function parseArgument(lexer) {
  var start = lexer.token;
  return {
    kind: _kinds.ARGUMENT,
    name: parseName(lexer),
    value: (expect(lexer, _lexer.TokenKind.COLON), parseValueLiteral(lexer, false)),
    loc: loc(lexer, start)
  };
}

// Implements the parsing rules in the Fragments section.

/**
 * Corresponds to both FragmentSpread and InlineFragment in the spec.
 *
 * FragmentSpread : ... FragmentName Directives?
 *
 * InlineFragment : ... TypeCondition? Directives? SelectionSet
 */
function parseFragment(lexer) {
  var start = lexer.token;
  expect(lexer, _lexer.TokenKind.SPREAD);
  if (peek(lexer, _lexer.TokenKind.NAME) && lexer.token.value !== 'on') {
    return {
      kind: _kinds.FRAGMENT_SPREAD,
      name: parseFragmentName(lexer),
      directives: parseDirectives(lexer),
      loc: loc(lexer, start)
    };
  }
  var typeCondition = null;
  if (lexer.token.value === 'on') {
    lexer.advance();
    typeCondition = parseNamedType(lexer);
  }
  return {
    kind: _kinds.INLINE_FRAGMENT,
    typeCondition: typeCondition,
    directives: parseDirectives(lexer),
    selectionSet: parseSelectionSet(lexer),
    loc: loc(lexer, start)
  };
}

/**
 * FragmentDefinition :
 *   - fragment FragmentName on TypeCondition Directives? SelectionSet
 *
 * TypeCondition : NamedType
 */
function parseFragmentDefinition(lexer) {
  var start = lexer.token;
  expectKeyword(lexer, 'fragment');
  return {
    kind: _kinds.FRAGMENT_DEFINITION,
    name: parseFragmentName(lexer),
    typeCondition: (expectKeyword(lexer, 'on'), parseNamedType(lexer)),
    directives: parseDirectives(lexer),
    selectionSet: parseSelectionSet(lexer),
    loc: loc(lexer, start)
  };
}

/**
 * FragmentName : Name but not `on`
 */
function parseFragmentName(lexer) {
  if (lexer.token.value === 'on') {
    throw unexpected(lexer);
  }
  return parseName(lexer);
}

// Implements the parsing rules in the Values section.

/**
 * Value[Const] :
 *   - [~Const] Variable
 *   - IntValue
 *   - FloatValue
 *   - StringValue
 *   - BooleanValue
 *   - NullValue
 *   - EnumValue
 *   - ListValue[?Const]
 *   - ObjectValue[?Const]
 *
 * BooleanValue : one of `true` `false`
 *
 * NullValue : `null`
 *
 * EnumValue : Name but not `true`, `false` or `null`
 */
function parseValueLiteral(lexer, isConst) {
  var token = lexer.token;
  switch (token.kind) {
    case _lexer.TokenKind.BRACKET_L:
      return parseList(lexer, isConst);
    case _lexer.TokenKind.BRACE_L:
      return parseObject(lexer, isConst);
    case _lexer.TokenKind.INT:
      lexer.advance();
      return {
        kind: _kinds.INT,
        value: token.value,
        loc: loc(lexer, token)
      };
    case _lexer.TokenKind.FLOAT:
      lexer.advance();
      return {
        kind: _kinds.FLOAT,
        value: token.value,
        loc: loc(lexer, token)
      };
    case _lexer.TokenKind.STRING:
      lexer.advance();
      return {
        kind: _kinds.STRING,
        value: token.value,
        loc: loc(lexer, token)
      };
    case _lexer.TokenKind.NAME:
      if (token.value === 'true' || token.value === 'false') {
        lexer.advance();
        return {
          kind: _kinds.BOOLEAN,
          value: token.value === 'true',
          loc: loc(lexer, token)
        };
      } else if (token.value === 'null') {
        lexer.advance();
        return {
          kind: _kinds.NULL,
          loc: loc(lexer, token)
        };
      }
      lexer.advance();
      return {
        kind: _kinds.ENUM,
        value: token.value,
        loc: loc(lexer, token)
      };
    case _lexer.TokenKind.DOLLAR:
      if (!isConst) {
        return parseVariable(lexer);
      }
      break;
  }
  throw unexpected(lexer);
}

function parseConstValue(lexer) {
  return parseValueLiteral(lexer, true);
}

function parseValueValue(lexer) {
  return parseValueLiteral(lexer, false);
}

/**
 * ListValue[Const] :
 *   - [ ]
 *   - [ Value[?Const]+ ]
 */
function parseList(lexer, isConst) {
  var start = lexer.token;
  var item = isConst ? parseConstValue : parseValueValue;
  return {
    kind: _kinds.LIST,
    values: any(lexer, _lexer.TokenKind.BRACKET_L, item, _lexer.TokenKind.BRACKET_R),
    loc: loc(lexer, start)
  };
}

/**
 * ObjectValue[Const] :
 *   - { }
 *   - { ObjectField[?Const]+ }
 */
function parseObject(lexer, isConst) {
  var start = lexer.token;
  expect(lexer, _lexer.TokenKind.BRACE_L);
  var fields = [];
  while (!skip(lexer, _lexer.TokenKind.BRACE_R)) {
    fields.push(parseObjectField(lexer, isConst));
  }
  return {
    kind: _kinds.OBJECT,
    fields: fields,
    loc: loc(lexer, start)
  };
}

/**
 * ObjectField[Const] : Name : Value[?Const]
 */
function parseObjectField(lexer, isConst) {
  var start = lexer.token;
  return {
    kind: _kinds.OBJECT_FIELD,
    name: parseName(lexer),
    value: (expect(lexer, _lexer.TokenKind.COLON), parseValueLiteral(lexer, isConst)),
    loc: loc(lexer, start)
  };
}

// Implements the parsing rules in the Directives section.

/**
 * Directives : Directive+
 */
function parseDirectives(lexer) {
  var directives = [];
  while (peek(lexer, _lexer.TokenKind.AT)) {
    directives.push(parseDirective(lexer));
  }
  return directives;
}

/**
 * Directive : @ Name Arguments?
 */
function parseDirective(lexer) {
  var start = lexer.token;
  expect(lexer, _lexer.TokenKind.AT);
  return {
    kind: _kinds.DIRECTIVE,
    name: parseName(lexer),
    arguments: parseArguments(lexer),
    loc: loc(lexer, start)
  };
}

// Implements the parsing rules in the Types section.

/**
 * Type :
 *   - NamedType
 *   - ListType
 *   - NonNullType
 */
function parseTypeReference(lexer) {
  var start = lexer.token;
  var type = void 0;
  if (skip(lexer, _lexer.TokenKind.BRACKET_L)) {
    type = parseTypeReference(lexer);
    expect(lexer, _lexer.TokenKind.BRACKET_R);
    type = {
      kind: _kinds.LIST_TYPE,
      type: type,
      loc: loc(lexer, start)
    };
  } else {
    type = parseNamedType(lexer);
  }
  if (skip(lexer, _lexer.TokenKind.BANG)) {
    return {
      kind: _kinds.NON_NULL_TYPE,
      type: type,
      loc: loc(lexer, start)
    };
  }
  return type;
}

/**
 * NamedType : Name
 */
function parseNamedType(lexer) {
  var start = lexer.token;
  return {
    kind: _kinds.NAMED_TYPE,
    name: parseName(lexer),
    loc: loc(lexer, start)
  };
}

// Implements the parsing rules in the Type Definition section.

/**
 * TypeSystemDefinition :
 *   - SchemaDefinition
 *   - TypeDefinition
 *   - TypeExtensionDefinition
 *   - DirectiveDefinition
 *
 * TypeDefinition :
 *   - ScalarTypeDefinition
 *   - ObjectTypeDefinition
 *   - InterfaceTypeDefinition
 *   - UnionTypeDefinition
 *   - EnumTypeDefinition
 *   - InputObjectTypeDefinition
 */
function parseTypeSystemDefinition(lexer) {
  if (peek(lexer, _lexer.TokenKind.NAME)) {
    switch (lexer.token.value) {
      case 'schema':
        return parseSchemaDefinition(lexer);
      case 'scalar':
        return parseScalarTypeDefinition(lexer);
      case 'type':
        return parseObjectTypeDefinition(lexer);
      case 'interface':
        return parseInterfaceTypeDefinition(lexer);
      case 'union':
        return parseUnionTypeDefinition(lexer);
      case 'enum':
        return parseEnumTypeDefinition(lexer);
      case 'input':
        return parseInputObjectTypeDefinition(lexer);
      case 'extend':
        return parseTypeExtensionDefinition(lexer);
      case 'directive':
        return parseDirectiveDefinition(lexer);
    }
  }

  throw unexpected(lexer);
}

/**
 * SchemaDefinition : schema Directives? { OperationTypeDefinition+ }
 *
 * OperationTypeDefinition : OperationType : NamedType
 */
function parseSchemaDefinition(lexer) {
  var start = lexer.token;
  expectKeyword(lexer, 'schema');
  var directives = parseDirectives(lexer);
  var operationTypes = many(lexer, _lexer.TokenKind.BRACE_L, parseOperationTypeDefinition, _lexer.TokenKind.BRACE_R);
  return {
    kind: _kinds.SCHEMA_DEFINITION,
    directives: directives,
    operationTypes: operationTypes,
    loc: loc(lexer, start)
  };
}

function parseOperationTypeDefinition(lexer) {
  var start = lexer.token;
  var operation = parseOperationType(lexer);
  expect(lexer, _lexer.TokenKind.COLON);
  var type = parseNamedType(lexer);
  return {
    kind: _kinds.OPERATION_TYPE_DEFINITION,
    operation: operation,
    type: type,
    loc: loc(lexer, start)
  };
}

/**
 * ScalarTypeDefinition : scalar Name Directives?
 */
function parseScalarTypeDefinition(lexer) {
  var start = lexer.token;
  expectKeyword(lexer, 'scalar');
  var name = parseName(lexer);
  var directives = parseDirectives(lexer);
  return {
    kind: _kinds.SCALAR_TYPE_DEFINITION,
    name: name,
    directives: directives,
    loc: loc(lexer, start)
  };
}

/**
 * ObjectTypeDefinition :
 *   - type Name ImplementsInterfaces? Directives? { FieldDefinition+ }
 */
function parseObjectTypeDefinition(lexer) {
  var start = lexer.token;
  expectKeyword(lexer, 'type');
  var name = parseName(lexer);
  var interfaces = parseImplementsInterfaces(lexer);
  var directives = parseDirectives(lexer);
  var fields = any(lexer, _lexer.TokenKind.BRACE_L, parseFieldDefinition, _lexer.TokenKind.BRACE_R);
  return {
    kind: _kinds.OBJECT_TYPE_DEFINITION,
    name: name,
    interfaces: interfaces,
    directives: directives,
    fields: fields,
    loc: loc(lexer, start)
  };
}

/**
 * ImplementsInterfaces : implements NamedType+
 */
function parseImplementsInterfaces(lexer) {
  var types = [];
  if (lexer.token.value === 'implements') {
    lexer.advance();
    do {
      types.push(parseNamedType(lexer));
    } while (peek(lexer, _lexer.TokenKind.NAME));
  }
  return types;
}

/**
 * FieldDefinition : Name ArgumentsDefinition? : Type Directives?
 */
function parseFieldDefinition(lexer) {
  var start = lexer.token;
  var name = parseName(lexer);
  var args = parseArgumentDefs(lexer);
  expect(lexer, _lexer.TokenKind.COLON);
  var type = parseTypeReference(lexer);
  var directives = parseDirectives(lexer);
  return {
    kind: _kinds.FIELD_DEFINITION,
    name: name,
    arguments: args,
    type: type,
    directives: directives,
    loc: loc(lexer, start)
  };
}

/**
 * ArgumentsDefinition : ( InputValueDefinition+ )
 */
function parseArgumentDefs(lexer) {
  if (!peek(lexer, _lexer.TokenKind.PAREN_L)) {
    return [];
  }
  return many(lexer, _lexer.TokenKind.PAREN_L, parseInputValueDef, _lexer.TokenKind.PAREN_R);
}

/**
 * InputValueDefinition : Name : Type DefaultValue? Directives?
 */
function parseInputValueDef(lexer) {
  var start = lexer.token;
  var name = parseName(lexer);
  expect(lexer, _lexer.TokenKind.COLON);
  var type = parseTypeReference(lexer);
  var defaultValue = null;
  if (skip(lexer, _lexer.TokenKind.EQUALS)) {
    defaultValue = parseConstValue(lexer);
  }
  var directives = parseDirectives(lexer);
  return {
    kind: _kinds.INPUT_VALUE_DEFINITION,
    name: name,
    type: type,
    defaultValue: defaultValue,
    directives: directives,
    loc: loc(lexer, start)
  };
}

/**
 * InterfaceTypeDefinition : interface Name Directives? { FieldDefinition+ }
 */
function parseInterfaceTypeDefinition(lexer) {
  var start = lexer.token;
  expectKeyword(lexer, 'interface');
  var name = parseName(lexer);
  var directives = parseDirectives(lexer);
  var fields = any(lexer, _lexer.TokenKind.BRACE_L, parseFieldDefinition, _lexer.TokenKind.BRACE_R);
  return {
    kind: _kinds.INTERFACE_TYPE_DEFINITION,
    name: name,
    directives: directives,
    fields: fields,
    loc: loc(lexer, start)
  };
}

/**
 * UnionTypeDefinition : union Name Directives? = UnionMembers
 */
function parseUnionTypeDefinition(lexer) {
  var start = lexer.token;
  expectKeyword(lexer, 'union');
  var name = parseName(lexer);
  var directives = parseDirectives(lexer);
  expect(lexer, _lexer.TokenKind.EQUALS);
  var types = parseUnionMembers(lexer);
  return {
    kind: _kinds.UNION_TYPE_DEFINITION,
    name: name,
    directives: directives,
    types: types,
    loc: loc(lexer, start)
  };
}

/**
 * UnionMembers :
 *   - `|`? NamedType
 *   - UnionMembers | NamedType
 */
function parseUnionMembers(lexer) {
  // Optional leading pipe
  skip(lexer, _lexer.TokenKind.PIPE);
  var members = [];
  do {
    members.push(parseNamedType(lexer));
  } while (skip(lexer, _lexer.TokenKind.PIPE));
  return members;
}

/**
 * EnumTypeDefinition : enum Name Directives? { EnumValueDefinition+ }
 */
function parseEnumTypeDefinition(lexer) {
  var start = lexer.token;
  expectKeyword(lexer, 'enum');
  var name = parseName(lexer);
  var directives = parseDirectives(lexer);
  var values = many(lexer, _lexer.TokenKind.BRACE_L, parseEnumValueDefinition, _lexer.TokenKind.BRACE_R);
  return {
    kind: _kinds.ENUM_TYPE_DEFINITION,
    name: name,
    directives: directives,
    values: values,
    loc: loc(lexer, start)
  };
}

/**
 * EnumValueDefinition : EnumValue Directives?
 *
 * EnumValue : Name
 */
function parseEnumValueDefinition(lexer) {
  var start = lexer.token;
  var name = parseName(lexer);
  var directives = parseDirectives(lexer);
  return {
    kind: _kinds.ENUM_VALUE_DEFINITION,
    name: name,
    directives: directives,
    loc: loc(lexer, start)
  };
}

/**
 * InputObjectTypeDefinition : input Name Directives? { InputValueDefinition+ }
 */
function parseInputObjectTypeDefinition(lexer) {
  var start = lexer.token;
  expectKeyword(lexer, 'input');
  var name = parseName(lexer);
  var directives = parseDirectives(lexer);
  var fields = any(lexer, _lexer.TokenKind.BRACE_L, parseInputValueDef, _lexer.TokenKind.BRACE_R);
  return {
    kind: _kinds.INPUT_OBJECT_TYPE_DEFINITION,
    name: name,
    directives: directives,
    fields: fields,
    loc: loc(lexer, start)
  };
}

/**
 * TypeExtensionDefinition : extend ObjectTypeDefinition
 */
function parseTypeExtensionDefinition(lexer) {
  var start = lexer.token;
  expectKeyword(lexer, 'extend');
  var definition = parseObjectTypeDefinition(lexer);
  return {
    kind: _kinds.TYPE_EXTENSION_DEFINITION,
    definition: definition,
    loc: loc(lexer, start)
  };
}

/**
 * DirectiveDefinition :
 *   - directive @ Name ArgumentsDefinition? on DirectiveLocations
 */
function parseDirectiveDefinition(lexer) {
  var start = lexer.token;
  expectKeyword(lexer, 'directive');
  expect(lexer, _lexer.TokenKind.AT);
  var name = parseName(lexer);
  var args = parseArgumentDefs(lexer);
  expectKeyword(lexer, 'on');
  var locations = parseDirectiveLocations(lexer);
  return {
    kind: _kinds.DIRECTIVE_DEFINITION,
    name: name,
    arguments: args,
    locations: locations,
    loc: loc(lexer, start)
  };
}

/**
 * DirectiveLocations :
 *   - `|`? Name
 *   - DirectiveLocations | Name
 */
function parseDirectiveLocations(lexer) {
  // Optional leading pipe
  skip(lexer, _lexer.TokenKind.PIPE);
  var locations = [];
  do {
    locations.push(parseName(lexer));
  } while (skip(lexer, _lexer.TokenKind.PIPE));
  return locations;
}

// Core parsing utility functions

/**
 * Returns a location object, used to identify the place in
 * the source that created a given parsed object.
 */
function loc(lexer, startToken) {
  if (!lexer.options.noLocation) {
    return new Loc(startToken, lexer.lastToken, lexer.source);
  }
}

function Loc(startToken, endToken, source) {
  this.start = startToken.start;
  this.end = endToken.end;
  this.startToken = startToken;
  this.endToken = endToken;
  this.source = source;
}

// Print a simplified form when appearing in JSON/util.inspect.
Loc.prototype.toJSON = Loc.prototype.inspect = function toJSON() {
  return { start: this.start, end: this.end };
};

/**
 * Determines if the next token is of a given kind
 */
function peek(lexer, kind) {
  return lexer.token.kind === kind;
}

/**
 * If the next token is of the given kind, return true after advancing
 * the lexer. Otherwise, do not change the parser state and return false.
 */
function skip(lexer, kind) {
  var match = lexer.token.kind === kind;
  if (match) {
    lexer.advance();
  }
  return match;
}

/**
 * If the next token is of the given kind, return that token after advancing
 * the lexer. Otherwise, do not change the parser state and throw an error.
 */
function expect(lexer, kind) {
  var token = lexer.token;
  if (token.kind === kind) {
    lexer.advance();
    return token;
  }
  throw (0, _error.syntaxError)(lexer.source, token.start, 'Expected ' + kind + ', found ' + (0, _lexer.getTokenDesc)(token));
}

/**
 * If the next token is a keyword with the given value, return that token after
 * advancing the lexer. Otherwise, do not change the parser state and return
 * false.
 */
function expectKeyword(lexer, value) {
  var token = lexer.token;
  if (token.kind === _lexer.TokenKind.NAME && token.value === value) {
    lexer.advance();
    return token;
  }
  throw (0, _error.syntaxError)(lexer.source, token.start, 'Expected "' + value + '", found ' + (0, _lexer.getTokenDesc)(token));
}

/**
 * Helper function for creating an error when an unexpected lexed token
 * is encountered.
 */
function unexpected(lexer, atToken) {
  var token = atToken || lexer.token;
  return (0, _error.syntaxError)(lexer.source, token.start, 'Unexpected ' + (0, _lexer.getTokenDesc)(token));
}

/**
 * Returns a possibly empty list of parse nodes, determined by
 * the parseFn. This list begins with a lex token of openKind
 * and ends with a lex token of closeKind. Advances the parser
 * to the next lex token after the closing token.
 */
function any(lexer, openKind, parseFn, closeKind) {
  expect(lexer, openKind);
  var nodes = [];
  while (!skip(lexer, closeKind)) {
    nodes.push(parseFn(lexer));
  }
  return nodes;
}

/**
 * Returns a non-empty list of parse nodes, determined by
 * the parseFn. This list begins with a lex token of openKind
 * and ends with a lex token of closeKind. Advances the parser
 * to the next lex token after the closing token.
 */
function many(lexer, openKind, parseFn, closeKind) {
  expect(lexer, openKind);
  var nodes = [parseFn(lexer)];
  while (!skip(lexer, closeKind)) {
    nodes.push(parseFn(lexer));
  }
  return nodes;
}
},{"../error":88,"./kinds":105,"./lexer":106,"./source":110}],109:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.print = print;

var _visitor = require('./visitor');

/**
 * Converts an AST into a string, using one set of reasonable
 * formatting rules.
 */
function print(ast) {
  return (0, _visitor.visit)(ast, { leave: printDocASTReducer });
} /**
   *  Copyright (c) 2015, Facebook, Inc.
   *  All rights reserved.
   *
   *  This source code is licensed under the BSD-style license found in the
   *  LICENSE file in the root directory of this source tree. An additional grant
   *  of patent rights can be found in the PATENTS file in the same directory.
   */

var printDocASTReducer = {
  Name: function Name(node) {
    return node.value;
  },
  Variable: function Variable(node) {
    return '$' + node.name;
  },

  // Document

  Document: function Document(node) {
    return join(node.definitions, '\n\n') + '\n';
  },

  OperationDefinition: function OperationDefinition(node) {
    var op = node.operation;
    var name = node.name;
    var varDefs = wrap('(', join(node.variableDefinitions, ', '), ')');
    var directives = join(node.directives, ' ');
    var selectionSet = node.selectionSet;
    // Anonymous queries with no directives or variable definitions can use
    // the query short form.
    return !name && !directives && !varDefs && op === 'query' ? selectionSet : join([op, join([name, varDefs]), directives, selectionSet], ' ');
  },


  VariableDefinition: function VariableDefinition(_ref) {
    var variable = _ref.variable,
        type = _ref.type,
        defaultValue = _ref.defaultValue;
    return variable + ': ' + type + wrap(' = ', defaultValue);
  },

  SelectionSet: function SelectionSet(_ref2) {
    var selections = _ref2.selections;
    return block(selections);
  },

  Field: function Field(_ref3) {
    var alias = _ref3.alias,
        name = _ref3.name,
        args = _ref3.arguments,
        directives = _ref3.directives,
        selectionSet = _ref3.selectionSet;
    return join([wrap('', alias, ': ') + name + wrap('(', join(args, ', '), ')'), join(directives, ' '), selectionSet], ' ');
  },

  Argument: function Argument(_ref4) {
    var name = _ref4.name,
        value = _ref4.value;
    return name + ': ' + value;
  },

  // Fragments

  FragmentSpread: function FragmentSpread(_ref5) {
    var name = _ref5.name,
        directives = _ref5.directives;
    return '...' + name + wrap(' ', join(directives, ' '));
  },

  InlineFragment: function InlineFragment(_ref6) {
    var typeCondition = _ref6.typeCondition,
        directives = _ref6.directives,
        selectionSet = _ref6.selectionSet;
    return join(['...', wrap('on ', typeCondition), join(directives, ' '), selectionSet], ' ');
  },

  FragmentDefinition: function FragmentDefinition(_ref7) {
    var name = _ref7.name,
        typeCondition = _ref7.typeCondition,
        directives = _ref7.directives,
        selectionSet = _ref7.selectionSet;
    return 'fragment ' + name + ' on ' + typeCondition + ' ' + wrap('', join(directives, ' '), ' ') + selectionSet;
  },

  // Value

  IntValue: function IntValue(_ref8) {
    var value = _ref8.value;
    return value;
  },
  FloatValue: function FloatValue(_ref9) {
    var value = _ref9.value;
    return value;
  },
  StringValue: function StringValue(_ref10) {
    var value = _ref10.value;
    return JSON.stringify(value);
  },
  BooleanValue: function BooleanValue(_ref11) {
    var value = _ref11.value;
    return JSON.stringify(value);
  },
  NullValue: function NullValue() {
    return 'null';
  },
  EnumValue: function EnumValue(_ref12) {
    var value = _ref12.value;
    return value;
  },
  ListValue: function ListValue(_ref13) {
    var values = _ref13.values;
    return '[' + join(values, ', ') + ']';
  },
  ObjectValue: function ObjectValue(_ref14) {
    var fields = _ref14.fields;
    return '{' + join(fields, ', ') + '}';
  },
  ObjectField: function ObjectField(_ref15) {
    var name = _ref15.name,
        value = _ref15.value;
    return name + ': ' + value;
  },

  // Directive

  Directive: function Directive(_ref16) {
    var name = _ref16.name,
        args = _ref16.arguments;
    return '@' + name + wrap('(', join(args, ', '), ')');
  },

  // Type

  NamedType: function NamedType(_ref17) {
    var name = _ref17.name;
    return name;
  },
  ListType: function ListType(_ref18) {
    var type = _ref18.type;
    return '[' + type + ']';
  },
  NonNullType: function NonNullType(_ref19) {
    var type = _ref19.type;
    return type + '!';
  },

  // Type System Definitions

  SchemaDefinition: function SchemaDefinition(_ref20) {
    var directives = _ref20.directives,
        operationTypes = _ref20.operationTypes;
    return join(['schema', join(directives, ' '), block(operationTypes)], ' ');
  },

  OperationTypeDefinition: function OperationTypeDefinition(_ref21) {
    var operation = _ref21.operation,
        type = _ref21.type;
    return operation + ': ' + type;
  },

  ScalarTypeDefinition: function ScalarTypeDefinition(_ref22) {
    var name = _ref22.name,
        directives = _ref22.directives;
    return join(['scalar', name, join(directives, ' ')], ' ');
  },

  ObjectTypeDefinition: function ObjectTypeDefinition(_ref23) {
    var name = _ref23.name,
        interfaces = _ref23.interfaces,
        directives = _ref23.directives,
        fields = _ref23.fields;
    return join(['type', name, wrap('implements ', join(interfaces, ', ')), join(directives, ' '), block(fields)], ' ');
  },

  FieldDefinition: function FieldDefinition(_ref24) {
    var name = _ref24.name,
        args = _ref24.arguments,
        type = _ref24.type,
        directives = _ref24.directives;
    return name + wrap('(', join(args, ', '), ')') + ': ' + type + wrap(' ', join(directives, ' '));
  },

  InputValueDefinition: function InputValueDefinition(_ref25) {
    var name = _ref25.name,
        type = _ref25.type,
        defaultValue = _ref25.defaultValue,
        directives = _ref25.directives;
    return join([name + ': ' + type, wrap('= ', defaultValue), join(directives, ' ')], ' ');
  },

  InterfaceTypeDefinition: function InterfaceTypeDefinition(_ref26) {
    var name = _ref26.name,
        directives = _ref26.directives,
        fields = _ref26.fields;
    return join(['interface', name, join(directives, ' '), block(fields)], ' ');
  },

  UnionTypeDefinition: function UnionTypeDefinition(_ref27) {
    var name = _ref27.name,
        directives = _ref27.directives,
        types = _ref27.types;
    return join(['union', name, join(directives, ' '), '= ' + join(types, ' | ')], ' ');
  },

  EnumTypeDefinition: function EnumTypeDefinition(_ref28) {
    var name = _ref28.name,
        directives = _ref28.directives,
        values = _ref28.values;
    return join(['enum', name, join(directives, ' '), block(values)], ' ');
  },

  EnumValueDefinition: function EnumValueDefinition(_ref29) {
    var name = _ref29.name,
        directives = _ref29.directives;
    return join([name, join(directives, ' ')], ' ');
  },

  InputObjectTypeDefinition: function InputObjectTypeDefinition(_ref30) {
    var name = _ref30.name,
        directives = _ref30.directives,
        fields = _ref30.fields;
    return join(['input', name, join(directives, ' '), block(fields)], ' ');
  },

  TypeExtensionDefinition: function TypeExtensionDefinition(_ref31) {
    var definition = _ref31.definition;
    return 'extend ' + definition;
  },

  DirectiveDefinition: function DirectiveDefinition(_ref32) {
    var name = _ref32.name,
        args = _ref32.arguments,
        locations = _ref32.locations;
    return 'directive @' + name + wrap('(', join(args, ', '), ')') + ' on ' + join(locations, ' | ');
  }
};

/**
 * Given maybeArray, print an empty string if it is null or empty, otherwise
 * print all items together separated by separator if provided
 */
function join(maybeArray, separator) {
  return maybeArray ? maybeArray.filter(function (x) {
    return x;
  }).join(separator || '') : '';
}

/**
 * Given array, print each item on its own line, wrapped in an
 * indented "{ }" block.
 */
function block(array) {
  return array && array.length !== 0 ? indent('{\n' + join(array, '\n')) + '\n}' : '{}';
}

/**
 * If maybeString is not null or empty, then wrap with start and end, otherwise
 * print an empty string.
 */
function wrap(start, maybeString, end) {
  return maybeString ? start + maybeString + (end || '') : '';
}

function indent(maybeString) {
  return maybeString && maybeString.replace(/\n/g, '\n  ');
}
},{"./visitor":111}],110:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

/**
 * A representation of source input to GraphQL. The name is optional,
 * but is mostly useful for clients who store GraphQL documents in
 * source files; for example, if the GraphQL input is in a file Foo.graphql,
 * it might be useful for name to be "Foo.graphql".
 */
var Source = exports.Source = function Source(body, name) {
  _classCallCheck(this, Source);

  this.body = body;
  this.name = name || 'GraphQL request';
};
},{}],111:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.visit = visit;
exports.visitInParallel = visitInParallel;
exports.visitWithTypeInfo = visitWithTypeInfo;
exports.getVisitFn = getVisitFn;
/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

var QueryDocumentKeys = exports.QueryDocumentKeys = {
  Name: [],

  Document: ['definitions'],
  OperationDefinition: ['name', 'variableDefinitions', 'directives', 'selectionSet'],
  VariableDefinition: ['variable', 'type', 'defaultValue'],
  Variable: ['name'],
  SelectionSet: ['selections'],
  Field: ['alias', 'name', 'arguments', 'directives', 'selectionSet'],
  Argument: ['name', 'value'],

  FragmentSpread: ['name', 'directives'],
  InlineFragment: ['typeCondition', 'directives', 'selectionSet'],
  FragmentDefinition: ['name', 'typeCondition', 'directives', 'selectionSet'],

  IntValue: [],
  FloatValue: [],
  StringValue: [],
  BooleanValue: [],
  NullValue: [],
  EnumValue: [],
  ListValue: ['values'],
  ObjectValue: ['fields'],
  ObjectField: ['name', 'value'],

  Directive: ['name', 'arguments'],

  NamedType: ['name'],
  ListType: ['type'],
  NonNullType: ['type'],

  SchemaDefinition: ['directives', 'operationTypes'],
  OperationTypeDefinition: ['type'],

  ScalarTypeDefinition: ['name', 'directives'],
  ObjectTypeDefinition: ['name', 'interfaces', 'directives', 'fields'],
  FieldDefinition: ['name', 'arguments', 'type', 'directives'],
  InputValueDefinition: ['name', 'type', 'defaultValue', 'directives'],
  InterfaceTypeDefinition: ['name', 'directives', 'fields'],
  UnionTypeDefinition: ['name', 'directives', 'types'],
  EnumTypeDefinition: ['name', 'directives', 'values'],
  EnumValueDefinition: ['name', 'directives'],
  InputObjectTypeDefinition: ['name', 'directives', 'fields'],

  TypeExtensionDefinition: ['definition'],

  DirectiveDefinition: ['name', 'arguments', 'locations']
};

var BREAK = exports.BREAK = {};

/**
 * visit() will walk through an AST using a depth first traversal, calling
 * the visitor's enter function at each node in the traversal, and calling the
 * leave function after visiting that node and all of its child nodes.
 *
 * By returning different values from the enter and leave functions, the
 * behavior of the visitor can be altered, including skipping over a sub-tree of
 * the AST (by returning false), editing the AST by returning a value or null
 * to remove the value, or to stop the whole traversal by returning BREAK.
 *
 * When using visit() to edit an AST, the original AST will not be modified, and
 * a new version of the AST with the changes applied will be returned from the
 * visit function.
 *
 *     const editedAST = visit(ast, {
 *       enter(node, key, parent, path, ancestors) {
 *         // @return
 *         //   undefined: no action
 *         //   false: skip visiting this node
 *         //   visitor.BREAK: stop visiting altogether
 *         //   null: delete this node
 *         //   any value: replace this node with the returned value
 *       },
 *       leave(node, key, parent, path, ancestors) {
 *         // @return
 *         //   undefined: no action
 *         //   false: no action
 *         //   visitor.BREAK: stop visiting altogether
 *         //   null: delete this node
 *         //   any value: replace this node with the returned value
 *       }
 *     });
 *
 * Alternatively to providing enter() and leave() functions, a visitor can
 * instead provide functions named the same as the kinds of AST nodes, or
 * enter/leave visitors at a named key, leading to four permutations of
 * visitor API:
 *
 * 1) Named visitors triggered when entering a node a specific kind.
 *
 *     visit(ast, {
 *       Kind(node) {
 *         // enter the "Kind" node
 *       }
 *     })
 *
 * 2) Named visitors that trigger upon entering and leaving a node of
 *    a specific kind.
 *
 *     visit(ast, {
 *       Kind: {
 *         enter(node) {
 *           // enter the "Kind" node
 *         }
 *         leave(node) {
 *           // leave the "Kind" node
 *         }
 *       }
 *     })
 *
 * 3) Generic visitors that trigger upon entering and leaving any node.
 *
 *     visit(ast, {
 *       enter(node) {
 *         // enter any node
 *       },
 *       leave(node) {
 *         // leave any node
 *       }
 *     })
 *
 * 4) Parallel visitors for entering and leaving nodes of a specific kind.
 *
 *     visit(ast, {
 *       enter: {
 *         Kind(node) {
 *           // enter the "Kind" node
 *         }
 *       },
 *       leave: {
 *         Kind(node) {
 *           // leave the "Kind" node
 *         }
 *       }
 *     })
 */
function visit(root, visitor, keyMap) {
  var visitorKeys = keyMap || QueryDocumentKeys;

  var stack = void 0;
  var inArray = Array.isArray(root);
  var keys = [root];
  var index = -1;
  var edits = [];
  var parent = void 0;
  var path = [];
  var ancestors = [];
  var newRoot = root;

  do {
    index++;
    var isLeaving = index === keys.length;
    var key = void 0;
    var node = void 0;
    var isEdited = isLeaving && edits.length !== 0;
    if (isLeaving) {
      key = ancestors.length === 0 ? undefined : path.pop();
      node = parent;
      parent = ancestors.pop();
      if (isEdited) {
        if (inArray) {
          node = node.slice();
        } else {
          var clone = {};
          for (var k in node) {
            if (node.hasOwnProperty(k)) {
              clone[k] = node[k];
            }
          }
          node = clone;
        }
        var editOffset = 0;
        for (var ii = 0; ii < edits.length; ii++) {
          var editKey = edits[ii][0];
          var editValue = edits[ii][1];
          if (inArray) {
            editKey -= editOffset;
          }
          if (inArray && editValue === null) {
            node.splice(editKey, 1);
            editOffset++;
          } else {
            node[editKey] = editValue;
          }
        }
      }
      index = stack.index;
      keys = stack.keys;
      edits = stack.edits;
      inArray = stack.inArray;
      stack = stack.prev;
    } else {
      key = parent ? inArray ? index : keys[index] : undefined;
      node = parent ? parent[key] : newRoot;
      if (node === null || node === undefined) {
        continue;
      }
      if (parent) {
        path.push(key);
      }
    }

    var result = void 0;
    if (!Array.isArray(node)) {
      if (!isNode(node)) {
        throw new Error('Invalid AST Node: ' + JSON.stringify(node));
      }
      var visitFn = getVisitFn(visitor, node.kind, isLeaving);
      if (visitFn) {
        result = visitFn.call(visitor, node, key, parent, path, ancestors);

        if (result === BREAK) {
          break;
        }

        if (result === false) {
          if (!isLeaving) {
            path.pop();
            continue;
          }
        } else if (result !== undefined) {
          edits.push([key, result]);
          if (!isLeaving) {
            if (isNode(result)) {
              node = result;
            } else {
              path.pop();
              continue;
            }
          }
        }
      }
    }

    if (result === undefined && isEdited) {
      edits.push([key, node]);
    }

    if (!isLeaving) {
      stack = { inArray: inArray, index: index, keys: keys, edits: edits, prev: stack };
      inArray = Array.isArray(node);
      keys = inArray ? node : visitorKeys[node.kind] || [];
      index = -1;
      edits = [];
      if (parent) {
        ancestors.push(parent);
      }
      parent = node;
    }
  } while (stack !== undefined);

  if (edits.length !== 0) {
    newRoot = edits[edits.length - 1][1];
  }

  return newRoot;
}

function isNode(maybeNode) {
  return maybeNode && typeof maybeNode.kind === 'string';
}

/**
 * Creates a new visitor instance which delegates to many visitors to run in
 * parallel. Each visitor will be visited for each node before moving on.
 *
 * If a prior visitor edits a node, no following visitors will see that node.
 */
function visitInParallel(visitors) {
  var skipping = new Array(visitors.length);

  return {
    enter: function enter(node) {
      for (var i = 0; i < visitors.length; i++) {
        if (!skipping[i]) {
          var fn = getVisitFn(visitors[i], node.kind, /* isLeaving */false);
          if (fn) {
            var result = fn.apply(visitors[i], arguments);
            if (result === false) {
              skipping[i] = node;
            } else if (result === BREAK) {
              skipping[i] = BREAK;
            } else if (result !== undefined) {
              return result;
            }
          }
        }
      }
    },
    leave: function leave(node) {
      for (var i = 0; i < visitors.length; i++) {
        if (!skipping[i]) {
          var fn = getVisitFn(visitors[i], node.kind, /* isLeaving */true);
          if (fn) {
            var result = fn.apply(visitors[i], arguments);
            if (result === BREAK) {
              skipping[i] = BREAK;
            } else if (result !== undefined && result !== false) {
              return result;
            }
          }
        } else if (skipping[i] === node) {
          skipping[i] = null;
        }
      }
    }
  };
}

/**
 * Creates a new visitor instance which maintains a provided TypeInfo instance
 * along with visiting visitor.
 */
function visitWithTypeInfo(typeInfo, visitor) {
  return {
    enter: function enter(node) {
      typeInfo.enter(node);
      var fn = getVisitFn(visitor, node.kind, /* isLeaving */false);
      if (fn) {
        var result = fn.apply(visitor, arguments);
        if (result !== undefined) {
          typeInfo.leave(node);
          if (isNode(result)) {
            typeInfo.enter(result);
          }
        }
        return result;
      }
    },
    leave: function leave(node) {
      var fn = getVisitFn(visitor, node.kind, /* isLeaving */true);
      var result = void 0;
      if (fn) {
        result = fn.apply(visitor, arguments);
      }
      typeInfo.leave(node);
      return result;
    }
  };
}

/**
 * Given a visitor instance, if it is leaving or not, and a node kind, return
 * the function the visitor runtime should call.
 */
function getVisitFn(visitor, kind, isLeaving) {
  var kindVisitor = visitor[kind];
  if (kindVisitor) {
    if (!isLeaving && typeof kindVisitor === 'function') {
      // { Kind() {} }
      return kindVisitor;
    }
    var kindSpecificVisitor = isLeaving ? kindVisitor.leave : kindVisitor.enter;
    if (typeof kindSpecificVisitor === 'function') {
      // { Kind: { enter() {}, leave() {} } }
      return kindSpecificVisitor;
    }
  } else {
    var specificVisitor = isLeaving ? visitor.leave : visitor.enter;
    if (specificVisitor) {
      if (typeof specificVisitor === 'function') {
        // { enter() {}, leave() {} }
        return specificVisitor;
      }
      var specificKindVisitor = specificVisitor[kind];
      if (typeof specificKindVisitor === 'function') {
        // { enter: { Kind() {} }, leave: { Kind() {} } }
        return specificKindVisitor;
      }
    }
  }
}
},{}],112:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _subscribe = require('./subscribe');

Object.defineProperty(exports, 'subscribe', {
  enumerable: true,
  get: function get() {
    return _subscribe.subscribe;
  }
});
Object.defineProperty(exports, 'createSourceEventStream', {
  enumerable: true,
  get: function get() {
    return _subscribe.createSourceEventStream;
  }
});
},{"./subscribe":114}],113:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = mapAsyncIterator;

var _iterall = require('iterall');

function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; } /**
                                                                                                                                                                                                                   * Copyright (c) 2017, Facebook, Inc.
                                                                                                                                                                                                                   * All rights reserved.
                                                                                                                                                                                                                   *
                                                                                                                                                                                                                   * This source code is licensed under the BSD-style license found in the
                                                                                                                                                                                                                   * LICENSE file in the root directory of this source tree. An additional grant
                                                                                                                                                                                                                   * of patent rights can be found in the PATENTS file in the same directory.
                                                                                                                                                                                                                   *
                                                                                                                                                                                                                   * 
                                                                                                                                                                                                                   */

/**
 * Given an AsyncIterable and a callback function, return an AsyncIterator
 * which produces values mapped via calling the callback function.
 */
function mapAsyncIterator(iterable, callback) {
  var iterator = (0, _iterall.getAsyncIterator)(iterable);
  var $return = void 0;
  var abruptClose = void 0;
  if (typeof iterator.return === 'function') {
    $return = iterator.return;
    abruptClose = function abruptClose(error) {
      var rethrow = function rethrow() {
        return Promise.reject(error);
      };
      return $return.call(iterator).then(rethrow, rethrow);
    };
  }

  function mapResult(result) {
    return result.done ? result : asyncMapValue(result.value, callback).then(iteratorResult, abruptClose);
  }

  return _defineProperty({
    next: function next() {
      return iterator.next().then(mapResult);
    },
    'return': function _return() {
      return $return ? $return.call(iterator).then(mapResult) : Promise.resolve({ value: undefined, done: true });
    },
    'throw': function _throw(error) {
      if (typeof iterator.throw === 'function') {
        return iterator.throw(error).then(mapResult);
      }
      return Promise.reject(error).catch(abruptClose);
    }
  }, _iterall.$$asyncIterator, function () {
    return this;
  });
}

function asyncMapValue(value, callback) {
  return new Promise(function (resolve) {
    return resolve(callback(value));
  });
}

function iteratorResult(value) {
  return { value: value, done: false };
}
},{"iterall":169}],114:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.subscribe = subscribe;
exports.createSourceEventStream = createSourceEventStream;

var _iterall = require('iterall');

var _execute = require('../execution/execute');

var _schema = require('../type/schema');

var _invariant = require('../jsutils/invariant');

var _invariant2 = _interopRequireDefault(_invariant);

var _mapAsyncIterator = require('./mapAsyncIterator');

var _mapAsyncIterator2 = _interopRequireDefault(_mapAsyncIterator);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

/**
 * Implements the "Subscribe" algorithm described in the GraphQL specification.
 *
 * Returns an AsyncIterator
 *
 * If the arguments to this function do not result in a legal execution context,
 * a GraphQLError will be thrown immediately explaining the invalid input.
 *
 * Accepts either an object with named arguments, or individual arguments.
 */

/* eslint-disable no-redeclare */
function subscribe(argsOrSchema, document, rootValue, contextValue, variableValues, operationName, fieldResolver, subscribeFieldResolver) {
  // Extract arguments from object args if provided.
  var args = arguments.length === 1 ? argsOrSchema : undefined;
  var schema = args ? args.schema : argsOrSchema;
  return args ? subscribeImpl(schema, args.document, args.rootValue, args.contextValue, args.variableValues, args.operationName, args.fieldResolver, args.subscribeFieldResolver) : subscribeImpl(schema, document, rootValue, contextValue, variableValues, operationName, fieldResolver, subscribeFieldResolver);
} /**
   * Copyright (c) 2017, Facebook, Inc.
   * All rights reserved.
   *
   * This source code is licensed under the BSD-style license found in the
   * LICENSE file in the root directory of this source tree. An additional grant
   * of patent rights can be found in the PATENTS file in the same directory.
   *
   * 
   */

function subscribeImpl(schema, document, rootValue, contextValue, variableValues, operationName, fieldResolver, subscribeFieldResolver) {
  var subscription = createSourceEventStream(schema, document, rootValue, contextValue, variableValues, operationName, subscribeFieldResolver);

  // For each payload yielded from a subscription, map it over the normal
  // GraphQL `execute` function, with `payload` as the rootValue.
  // This implements the "MapSourceToResponseEvent" algorithm described in
  // the GraphQL specification. The `execute` function provides the
  // "ExecuteSubscriptionEvent" algorithm, as it is nearly identical to the
  // "ExecuteQuery" algorithm, for which `execute` is also used.
  return (0, _mapAsyncIterator2.default)(subscription, function (payload) {
    return (0, _execute.execute)(schema, document, payload, contextValue, variableValues, operationName, fieldResolver);
  });
}

/**
 * Implements the "CreateSourceEventStream" algorithm described in the
 * GraphQL specification, resolving the subscription source event stream.
 *
 * Returns an AsyncIterable, may through a GraphQLError.
 *
 * A Source Stream represents the sequence of events, each of which is
 * expected to be used to trigger a GraphQL execution for that event.
 *
 * This may be useful when hosting the stateful subscription service in a
 * different process or machine than the stateless GraphQL execution engine,
 * or otherwise separating these two steps. For more on this, see the
 * "Supporting Subscriptions at Scale" information in the GraphQL specification.
 */
function createSourceEventStream(schema, document, rootValue, contextValue, variableValues, operationName, fieldResolver) {
  // If arguments are missing or incorrect, throw an error.
  (0, _execute.assertValidExecutionArguments)(schema, document, variableValues);

  // If a valid context cannot be created due to incorrect arguments,
  // this will throw an error.
  var exeContext = (0, _execute.buildExecutionContext)(schema, document, rootValue, contextValue, variableValues, operationName, fieldResolver);

  var type = (0, _execute.getOperationRootType)(schema, exeContext.operation);
  var fields = (0, _execute.collectFields)(exeContext, type, exeContext.operation.selectionSet, Object.create(null), Object.create(null));
  var responseNames = Object.keys(fields);
  var responseName = responseNames[0];
  var fieldNodes = fields[responseName];
  var fieldNode = fieldNodes[0];
  var fieldDef = (0, _execute.getFieldDef)(schema, type, fieldNode.name.value);
  (0, _invariant2.default)(fieldDef, 'This subscription is not defined by the schema.');

  // Call the `subscribe()` resolver or the default resolver to produce an
  // AsyncIterable yielding raw payloads.
  var resolveFn = fieldDef.subscribe || exeContext.fieldResolver;

  var info = (0, _execute.buildResolveInfo)(exeContext, fieldDef, fieldNodes, type, (0, _execute.addPath)(undefined, responseName));

  // resolveFieldValueOrError implements the "ResolveFieldEventStream"
  // algorithm from GraphQL specification. It differs from
  // "ResolveFieldValue" due to providing a different `resolveFn`.
  var subscription = (0, _execute.resolveFieldValueOrError)(exeContext, fieldDef, fieldNodes, resolveFn, rootValue, info);

  if (subscription instanceof Error) {
    throw subscription;
  }

  if (!(0, _iterall.isAsyncIterable)(subscription)) {
    throw new Error('Subscription must return Async Iterable. ' + 'Received: ' + String(subscription));
  }

  return subscription;
}
},{"../execution/execute":91,"../jsutils/invariant":97,"../type/schema":120,"./mapAsyncIterator":113,"iterall":169}],115:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.GraphQLNonNull = exports.GraphQLList = exports.GraphQLInputObjectType = exports.GraphQLEnumType = exports.GraphQLUnionType = exports.GraphQLInterfaceType = exports.GraphQLObjectType = exports.GraphQLScalarType = undefined;

var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };

exports.isType = isType;
exports.assertType = assertType;
exports.isInputType = isInputType;
exports.assertInputType = assertInputType;
exports.isOutputType = isOutputType;
exports.assertOutputType = assertOutputType;
exports.isLeafType = isLeafType;
exports.assertLeafType = assertLeafType;
exports.isCompositeType = isCompositeType;
exports.assertCompositeType = assertCompositeType;
exports.isAbstractType = isAbstractType;
exports.assertAbstractType = assertAbstractType;
exports.getNullableType = getNullableType;
exports.isNamedType = isNamedType;
exports.assertNamedType = assertNamedType;
exports.getNamedType = getNamedType;

var _invariant = require('../jsutils/invariant');

var _invariant2 = _interopRequireDefault(_invariant);

var _isNullish = require('../jsutils/isNullish');

var _isNullish2 = _interopRequireDefault(_isNullish);

var _kinds = require('../language/kinds');

var Kind = _interopRequireWildcard(_kinds);

var _assertValidName = require('../utilities/assertValidName');

function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

// Predicates & Assertions

/**
 * These are all of the possible kinds of types.
 */
function isType(type) {
  return type instanceof GraphQLScalarType || type instanceof GraphQLObjectType || type instanceof GraphQLInterfaceType || type instanceof GraphQLUnionType || type instanceof GraphQLEnumType || type instanceof GraphQLInputObjectType || type instanceof GraphQLList || type instanceof GraphQLNonNull;
}

function assertType(type) {
  (0, _invariant2.default)(isType(type), 'Expected ' + String(type) + ' to be a GraphQL type.');
  return type;
}

/**
 * These types may be used as input types for arguments and directives.
 */
function isInputType(type) {
  return type instanceof GraphQLScalarType || type instanceof GraphQLEnumType || type instanceof GraphQLInputObjectType || type instanceof GraphQLNonNull && isInputType(type.ofType) || type instanceof GraphQLList && isInputType(type.ofType);
}

function assertInputType(type) {
  (0, _invariant2.default)(isInputType(type), 'Expected ' + String(type) + ' to be a GraphQL input type.');
  return type;
}

/**
 * These types may be used as output types as the result of fields.
 */
function isOutputType(type) {
  return type instanceof GraphQLScalarType || type instanceof GraphQLObjectType || type instanceof GraphQLInterfaceType || type instanceof GraphQLUnionType || type instanceof GraphQLEnumType || type instanceof GraphQLNonNull && isOutputType(type.ofType) || type instanceof GraphQLList && isOutputType(type.ofType);
}

function assertOutputType(type) {
  (0, _invariant2.default)(isOutputType(type), 'Expected ' + String(type) + ' to be a GraphQL output type.');
  return type;
}

/**
 * These types may describe types which may be leaf values.
 */
function isLeafType(type) {
  return type instanceof GraphQLScalarType || type instanceof GraphQLEnumType;
}

function assertLeafType(type) {
  (0, _invariant2.default)(isLeafType(type), 'Expected ' + String(type) + ' to be a GraphQL leaf type.');
  return type;
}

/**
 * These types may describe the parent context of a selection set.
 */
function isCompositeType(type) {
  return type instanceof GraphQLObjectType || type instanceof GraphQLInterfaceType || type instanceof GraphQLUnionType;
}

function assertCompositeType(type) {
  (0, _invariant2.default)(isCompositeType(type), 'Expected ' + String(type) + ' to be a GraphQL composite type.');
  return type;
}

/**
 * These types may describe the parent context of a selection set.
 */
function isAbstractType(type) {
  return type instanceof GraphQLInterfaceType || type instanceof GraphQLUnionType;
}

function assertAbstractType(type) {
  (0, _invariant2.default)(isAbstractType(type), 'Expected ' + String(type) + ' to be a GraphQL abstract type.');
  return type;
}

/**
 * These types can all accept null as a value.
 */
function getNullableType(type) {
  return type instanceof GraphQLNonNull ? type.ofType : type;
}

/**
 * These named types do not include modifiers like List or NonNull.
 */
function isNamedType(type) {
  return type instanceof GraphQLScalarType || type instanceof GraphQLObjectType || type instanceof GraphQLInterfaceType || type instanceof GraphQLUnionType || type instanceof GraphQLEnumType || type instanceof GraphQLInputObjectType;
}

function assertNamedType(type) {
  (0, _invariant2.default)(isNamedType(type), 'Expected ' + String(type) + ' to be a GraphQL named type.');
  return type;
}

/* eslint-disable no-redeclare */
function getNamedType(type) {
  /* eslint-enable no-redeclare */
  if (type) {
    var unmodifiedType = type;
    while (unmodifiedType instanceof GraphQLList || unmodifiedType instanceof GraphQLNonNull) {
      unmodifiedType = unmodifiedType.ofType;
    }
    return unmodifiedType;
  }
}

/**
 * Used while defining GraphQL types to allow for circular references in
 * otherwise immutable type definitions.
 */


function resolveThunk(thunk) {
  return typeof thunk === 'function' ? thunk() : thunk;
}

/**
 * Scalar Type Definition
 *
 * The leaf values of any request and input values to arguments are
 * Scalars (or Enums) and are defined with a name and a series of functions
 * used to parse input from ast or variables and to ensure validity.
 *
 * Example:
 *
 *     const OddType = new GraphQLScalarType({
 *       name: 'Odd',
 *       serialize(value) {
 *         return value % 2 === 1 ? value : null;
 *       }
 *     });
 *
 */

var GraphQLScalarType = exports.GraphQLScalarType = function () {
  function GraphQLScalarType(config) {
    _classCallCheck(this, GraphQLScalarType);

    (0, _assertValidName.assertValidName)(config.name);
    this.name = config.name;
    this.description = config.description;
    (0, _invariant2.default)(typeof config.serialize === 'function', this.name + ' must provide "serialize" function. If this custom Scalar ' + 'is also used as an input type, ensure "parseValue" and "parseLiteral" ' + 'functions are also provided.');
    if (config.parseValue || config.parseLiteral) {
      (0, _invariant2.default)(typeof config.parseValue === 'function' && typeof config.parseLiteral === 'function', this.name + ' must provide both "parseValue" and "parseLiteral" ' + 'functions.');
    }
    this._scalarConfig = config;
  }

  // Serializes an internal value to include in a response.


  GraphQLScalarType.prototype.serialize = function serialize(value) {
    var serializer = this._scalarConfig.serialize;
    return serializer(value);
  };

  // Determines if an internal value is valid for this type.
  // Equivalent to checking for if the parsedValue is nullish.


  GraphQLScalarType.prototype.isValidValue = function isValidValue(value) {
    return !(0, _isNullish2.default)(this.parseValue(value));
  };

  // Parses an externally provided value to use as an input.


  GraphQLScalarType.prototype.parseValue = function parseValue(value) {
    var parser = this._scalarConfig.parseValue;
    return parser && !(0, _isNullish2.default)(value) ? parser(value) : undefined;
  };

  // Determines if an internal value is valid for this type.
  // Equivalent to checking for if the parsedLiteral is nullish.


  GraphQLScalarType.prototype.isValidLiteral = function isValidLiteral(valueNode) {
    return !(0, _isNullish2.default)(this.parseLiteral(valueNode));
  };

  // Parses an externally provided literal value to use as an input.


  GraphQLScalarType.prototype.parseLiteral = function parseLiteral(valueNode) {
    var parser = this._scalarConfig.parseLiteral;
    return parser ? parser(valueNode) : undefined;
  };

  GraphQLScalarType.prototype.toString = function toString() {
    return this.name;
  };

  return GraphQLScalarType;
}();

// Also provide toJSON and inspect aliases for toString.


GraphQLScalarType.prototype.toJSON = GraphQLScalarType.prototype.inspect = GraphQLScalarType.prototype.toString;

/**
 * Object Type Definition
 *
 * Almost all of the GraphQL types you define will be object types. Object types
 * have a name, but most importantly describe their fields.
 *
 * Example:
 *
 *     const AddressType = new GraphQLObjectType({
 *       name: 'Address',
 *       fields: {
 *         street: { type: GraphQLString },
 *         number: { type: GraphQLInt },
 *         formatted: {
 *           type: GraphQLString,
 *           resolve(obj) {
 *             return obj.number + ' ' + obj.street
 *           }
 *         }
 *       }
 *     });
 *
 * When two types need to refer to each other, or a type needs to refer to
 * itself in a field, you can use a function expression (aka a closure or a
 * thunk) to supply the fields lazily.
 *
 * Example:
 *
 *     const PersonType = new GraphQLObjectType({
 *       name: 'Person',
 *       fields: () => ({
 *         name: { type: GraphQLString },
 *         bestFriend: { type: PersonType },
 *       })
 *     });
 *
 */
var GraphQLObjectType = exports.GraphQLObjectType = function () {
  function GraphQLObjectType(config) {
    _classCallCheck(this, GraphQLObjectType);

    (0, _assertValidName.assertValidName)(config.name, config.isIntrospection);
    this.name = config.name;
    this.description = config.description;
    if (config.isTypeOf) {
      (0, _invariant2.default)(typeof config.isTypeOf === 'function', this.name + ' must provide "isTypeOf" as a function.');
    }
    this.isTypeOf = config.isTypeOf;
    this._typeConfig = config;
  }

  GraphQLObjectType.prototype.getFields = function getFields() {
    return this._fields || (this._fields = defineFieldMap(this, this._typeConfig.fields));
  };

  GraphQLObjectType.prototype.getInterfaces = function getInterfaces() {
    return this._interfaces || (this._interfaces = defineInterfaces(this, this._typeConfig.interfaces));
  };

  GraphQLObjectType.prototype.toString = function toString() {
    return this.name;
  };

  return GraphQLObjectType;
}();

// Also provide toJSON and inspect aliases for toString.


GraphQLObjectType.prototype.toJSON = GraphQLObjectType.prototype.inspect = GraphQLObjectType.prototype.toString;

function defineInterfaces(type, interfacesThunk) {
  var interfaces = resolveThunk(interfacesThunk);
  if (!interfaces) {
    return [];
  }
  (0, _invariant2.default)(Array.isArray(interfaces), type.name + ' interfaces must be an Array or a function which returns ' + 'an Array.');

  var implementedTypeNames = Object.create(null);
  interfaces.forEach(function (iface) {
    (0, _invariant2.default)(iface instanceof GraphQLInterfaceType, type.name + ' may only implement Interface types, it cannot ' + ('implement: ' + String(iface) + '.'));
    (0, _invariant2.default)(!implementedTypeNames[iface.name], type.name + ' may declare it implements ' + iface.name + ' only once.');
    implementedTypeNames[iface.name] = true;
    if (typeof iface.resolveType !== 'function') {
      (0, _invariant2.default)(typeof type.isTypeOf === 'function', 'Interface Type ' + iface.name + ' does not provide a "resolveType" ' + ('function and implementing Type ' + type.name + ' does not provide a ') + '"isTypeOf" function. There is no way to resolve this implementing ' + 'type during execution.');
    }
  });
  return interfaces;
}

function defineFieldMap(type, fieldsThunk) {
  var fieldMap = resolveThunk(fieldsThunk);
  (0, _invariant2.default)(isPlainObj(fieldMap), type.name + ' fields must be an object with field names as keys or a ' + 'function which returns such an object.');

  var fieldNames = Object.keys(fieldMap);
  (0, _invariant2.default)(fieldNames.length > 0, type.name + ' fields must be an object with field names as keys or a ' + 'function which returns such an object.');

  var resultFieldMap = Object.create(null);
  fieldNames.forEach(function (fieldName) {
    (0, _assertValidName.assertValidName)(fieldName);
    var fieldConfig = fieldMap[fieldName];
    (0, _invariant2.default)(isPlainObj(fieldConfig), type.name + '.' + fieldName + ' field config must be an object');
    (0, _invariant2.default)(!fieldConfig.hasOwnProperty('isDeprecated'), type.name + '.' + fieldName + ' should provide "deprecationReason" instead ' + 'of "isDeprecated".');
    var field = _extends({}, fieldConfig, {
      isDeprecated: Boolean(fieldConfig.deprecationReason),
      name: fieldName
    });
    (0, _invariant2.default)(isOutputType(field.type), type.name + '.' + fieldName + ' field type must be Output Type but ' + ('got: ' + String(field.type) + '.'));
    (0, _invariant2.default)(isValidResolver(field.resolve), type.name + '.' + fieldName + ' field resolver must be a function if ' + ('provided, but got: ' + String(field.resolve) + '.'));
    var argsConfig = fieldConfig.args;
    if (!argsConfig) {
      field.args = [];
    } else {
      (0, _invariant2.default)(isPlainObj(argsConfig), type.name + '.' + fieldName + ' args must be an object with argument ' + 'names as keys.');
      field.args = Object.keys(argsConfig).map(function (argName) {
        (0, _assertValidName.assertValidName)(argName);
        var arg = argsConfig[argName];
        (0, _invariant2.default)(isInputType(arg.type), type.name + '.' + fieldName + '(' + argName + ':) argument type must be ' + ('Input Type but got: ' + String(arg.type) + '.'));
        return {
          name: argName,
          description: arg.description === undefined ? null : arg.description,
          type: arg.type,
          defaultValue: arg.defaultValue
        };
      });
    }
    resultFieldMap[fieldName] = field;
  });
  return resultFieldMap;
}

function isPlainObj(obj) {
  return obj && typeof obj === 'object' && !Array.isArray(obj);
}

// If a resolver is defined, it must be a function.
function isValidResolver(resolver) {
  return resolver == null || typeof resolver === 'function';
}

/**
 * Interface Type Definition
 *
 * When a field can return one of a heterogeneous set of types, a Interface type
 * is used to describe what types are possible, what fields are in common across
 * all types, as well as a function to determine which type is actually used
 * when the field is resolved.
 *
 * Example:
 *
 *     const EntityType = new GraphQLInterfaceType({
 *       name: 'Entity',
 *       fields: {
 *         name: { type: GraphQLString }
 *       }
 *     });
 *
 */
var GraphQLInterfaceType = exports.GraphQLInterfaceType = function () {
  function GraphQLInterfaceType(config) {
    _classCallCheck(this, GraphQLInterfaceType);

    (0, _assertValidName.assertValidName)(config.name);
    this.name = config.name;
    this.description = config.description;
    if (config.resolveType) {
      (0, _invariant2.default)(typeof config.resolveType === 'function', this.name + ' must provide "resolveType" as a function.');
    }
    this.resolveType = config.resolveType;
    this._typeConfig = config;
  }

  GraphQLInterfaceType.prototype.getFields = function getFields() {
    return this._fields || (this._fields = defineFieldMap(this, this._typeConfig.fields));
  };

  GraphQLInterfaceType.prototype.toString = function toString() {
    return this.name;
  };

  return GraphQLInterfaceType;
}();

// Also provide toJSON and inspect aliases for toString.


GraphQLInterfaceType.prototype.toJSON = GraphQLInterfaceType.prototype.inspect = GraphQLInterfaceType.prototype.toString;

/**
 * Union Type Definition
 *
 * When a field can return one of a heterogeneous set of types, a Union type
 * is used to describe what types are possible as well as providing a function
 * to determine which type is actually used when the field is resolved.
 *
 * Example:
 *
 *     const PetType = new GraphQLUnionType({
 *       name: 'Pet',
 *       types: [ DogType, CatType ],
 *       resolveType(value) {
 *         if (value instanceof Dog) {
 *           return DogType;
 *         }
 *         if (value instanceof Cat) {
 *           return CatType;
 *         }
 *       }
 *     });
 *
 */
var GraphQLUnionType = exports.GraphQLUnionType = function () {
  function GraphQLUnionType(config) {
    _classCallCheck(this, GraphQLUnionType);

    (0, _assertValidName.assertValidName)(config.name);
    this.name = config.name;
    this.description = config.description;
    if (config.resolveType) {
      (0, _invariant2.default)(typeof config.resolveType === 'function', this.name + ' must provide "resolveType" as a function.');
    }
    this.resolveType = config.resolveType;
    this._typeConfig = config;
  }

  GraphQLUnionType.prototype.getTypes = function getTypes() {
    return this._types || (this._types = defineTypes(this, this._typeConfig.types));
  };

  GraphQLUnionType.prototype.toString = function toString() {
    return this.name;
  };

  return GraphQLUnionType;
}();

// Also provide toJSON and inspect aliases for toString.


GraphQLUnionType.prototype.toJSON = GraphQLUnionType.prototype.inspect = GraphQLUnionType.prototype.toString;

function defineTypes(unionType, typesThunk) {
  var types = resolveThunk(typesThunk);

  (0, _invariant2.default)(Array.isArray(types) && types.length > 0, 'Must provide Array of types or a function which returns ' + ('such an array for Union ' + unionType.name + '.'));
  var includedTypeNames = Object.create(null);
  types.forEach(function (objType) {
    (0, _invariant2.default)(objType instanceof GraphQLObjectType, unionType.name + ' may only contain Object types, it cannot contain: ' + (String(objType) + '.'));
    (0, _invariant2.default)(!includedTypeNames[objType.name], unionType.name + ' can include ' + objType.name + ' type only once.');
    includedTypeNames[objType.name] = true;
    if (typeof unionType.resolveType !== 'function') {
      (0, _invariant2.default)(typeof objType.isTypeOf === 'function', 'Union type "' + unionType.name + '" does not provide a "resolveType" ' + ('function and possible type "' + objType.name + '" does not provide an ') + '"isTypeOf" function. There is no way to resolve this possible type ' + 'during execution.');
    }
  });

  return types;
}

/**
 * Enum Type Definition
 *
 * Some leaf values of requests and input values are Enums. GraphQL serializes
 * Enum values as strings, however internally Enums can be represented by any
 * kind of type, often integers.
 *
 * Example:
 *
 *     const RGBType = new GraphQLEnumType({
 *       name: 'RGB',
 *       values: {
 *         RED: { value: 0 },
 *         GREEN: { value: 1 },
 *         BLUE: { value: 2 }
 *       }
 *     });
 *
 * Note: If a value is not provided in a definition, the name of the enum value
 * will be used as its internal value.
 */
var GraphQLEnumType /* <T> */ = exports.GraphQLEnumType = function () {
  function GraphQLEnumType(config /* <T> */) {
    _classCallCheck(this, GraphQLEnumType);

    this.name = config.name;
    (0, _assertValidName.assertValidName)(config.name, config.isIntrospection);
    this.description = config.description;
    this._values = defineEnumValues(this, config.values);
    this._enumConfig = config;
  }

  GraphQLEnumType.prototype.getValues = function getValues() {
    return this._values;
  };

  GraphQLEnumType.prototype.getValue = function getValue(name) {
    return this._getNameLookup()[name];
  };

  GraphQLEnumType.prototype.serialize = function serialize(value /* T */) {
    var enumValue = this._getValueLookup().get(value);
    return enumValue ? enumValue.name : null;
  };

  GraphQLEnumType.prototype.isValidValue = function isValidValue(value) {
    return typeof value === 'string' && this._getNameLookup()[value] !== undefined;
  };

  GraphQLEnumType.prototype.parseValue = function parseValue(value) /* T */{
    if (typeof value === 'string') {
      var enumValue = this._getNameLookup()[value];
      if (enumValue) {
        return enumValue.value;
      }
    }
  };

  GraphQLEnumType.prototype.isValidLiteral = function isValidLiteral(valueNode) {
    return valueNode.kind === Kind.ENUM && this._getNameLookup()[valueNode.value] !== undefined;
  };

  GraphQLEnumType.prototype.parseLiteral = function parseLiteral(valueNode) /* T */{
    if (valueNode.kind === Kind.ENUM) {
      var enumValue = this._getNameLookup()[valueNode.value];
      if (enumValue) {
        return enumValue.value;
      }
    }
  };

  GraphQLEnumType.prototype._getValueLookup = function _getValueLookup() {
    if (!this._valueLookup) {
      var lookup = new Map();
      this.getValues().forEach(function (value) {
        lookup.set(value.value, value);
      });
      this._valueLookup = lookup;
    }
    return this._valueLookup;
  };

  GraphQLEnumType.prototype._getNameLookup = function _getNameLookup() {
    if (!this._nameLookup) {
      var lookup = Object.create(null);
      this.getValues().forEach(function (value) {
        lookup[value.name] = value;
      });
      this._nameLookup = lookup;
    }
    return this._nameLookup;
  };

  GraphQLEnumType.prototype.toString = function toString() {
    return this.name;
  };

  return GraphQLEnumType;
}();

// Also provide toJSON and inspect aliases for toString.


GraphQLEnumType.prototype.toJSON = GraphQLEnumType.prototype.inspect = GraphQLEnumType.prototype.toString;

function defineEnumValues(type, valueMap /* <T> */
) {
  (0, _invariant2.default)(isPlainObj(valueMap), type.name + ' values must be an object with value names as keys.');
  var valueNames = Object.keys(valueMap);
  (0, _invariant2.default)(valueNames.length > 0, type.name + ' values must be an object with value names as keys.');
  return valueNames.map(function (valueName) {
    (0, _assertValidName.assertValidName)(valueName);
    (0, _invariant2.default)(['true', 'false', 'null'].indexOf(valueName) === -1, 'Name "' + valueName + '" can not be used as an Enum value.');

    var value = valueMap[valueName];
    (0, _invariant2.default)(isPlainObj(value), type.name + '.' + valueName + ' must refer to an object with a "value" key ' + ('representing an internal value but got: ' + String(value) + '.'));
    (0, _invariant2.default)(!value.hasOwnProperty('isDeprecated'), type.name + '.' + valueName + ' should provide "deprecationReason" instead ' + 'of "isDeprecated".');
    return {
      name: valueName,
      description: value.description,
      isDeprecated: Boolean(value.deprecationReason),
      deprecationReason: value.deprecationReason,
      value: value.hasOwnProperty('value') ? value.value : valueName
    };
  });
} /* <T> */


/**
 * Input Object Type Definition
 *
 * An input object defines a structured collection of fields which may be
 * supplied to a field argument.
 *
 * Using `NonNull` will ensure that a value must be provided by the query
 *
 * Example:
 *
 *     const GeoPoint = new GraphQLInputObjectType({
 *       name: 'GeoPoint',
 *       fields: {
 *         lat: { type: new GraphQLNonNull(GraphQLFloat) },
 *         lon: { type: new GraphQLNonNull(GraphQLFloat) },
 *         alt: { type: GraphQLFloat, defaultValue: 0 },
 *       }
 *     });
 *
 */
var GraphQLInputObjectType = exports.GraphQLInputObjectType = function () {
  function GraphQLInputObjectType(config) {
    _classCallCheck(this, GraphQLInputObjectType);

    (0, _assertValidName.assertValidName)(config.name);
    this.name = config.name;
    this.description = config.description;
    this._typeConfig = config;
  }

  GraphQLInputObjectType.prototype.getFields = function getFields() {
    return this._fields || (this._fields = this._defineFieldMap());
  };

  GraphQLInputObjectType.prototype._defineFieldMap = function _defineFieldMap() {
    var _this = this;

    var fieldMap = resolveThunk(this._typeConfig.fields);
    (0, _invariant2.default)(isPlainObj(fieldMap), this.name + ' fields must be an object with field names as keys or a ' + 'function which returns such an object.');
    var fieldNames = Object.keys(fieldMap);
    (0, _invariant2.default)(fieldNames.length > 0, this.name + ' fields must be an object with field names as keys or a ' + 'function which returns such an object.');
    var resultFieldMap = Object.create(null);
    fieldNames.forEach(function (fieldName) {
      (0, _assertValidName.assertValidName)(fieldName);
      var field = _extends({}, fieldMap[fieldName], {
        name: fieldName
      });
      (0, _invariant2.default)(isInputType(field.type), _this.name + '.' + fieldName + ' field type must be Input Type but ' + ('got: ' + String(field.type) + '.'));
      (0, _invariant2.default)(field.resolve == null, _this.name + '.' + fieldName + ' field type has a resolve property, but ' + 'Input Types cannot define resolvers.');
      resultFieldMap[fieldName] = field;
    });
    return resultFieldMap;
  };

  GraphQLInputObjectType.prototype.toString = function toString() {
    return this.name;
  };

  return GraphQLInputObjectType;
}();

// Also provide toJSON and inspect aliases for toString.


GraphQLInputObjectType.prototype.toJSON = GraphQLInputObjectType.prototype.inspect = GraphQLInputObjectType.prototype.toString;

/**
 * List Modifier
 *
 * A list is a kind of type marker, a wrapping type which points to another
 * type. Lists are often created within the context of defining the fields of
 * an object type.
 *
 * Example:
 *
 *     const PersonType = new GraphQLObjectType({
 *       name: 'Person',
 *       fields: () => ({
 *         parents: { type: new GraphQLList(Person) },
 *         children: { type: new GraphQLList(Person) },
 *       })
 *     })
 *
 */
var GraphQLList = exports.GraphQLList = function () {
  function GraphQLList(type) {
    _classCallCheck(this, GraphQLList);

    (0, _invariant2.default)(isType(type), 'Can only create List of a GraphQLType but got: ' + String(type) + '.');
    this.ofType = type;
  }

  GraphQLList.prototype.toString = function toString() {
    return '[' + String(this.ofType) + ']';
  };

  return GraphQLList;
}();

// Also provide toJSON and inspect aliases for toString.


GraphQLList.prototype.toJSON = GraphQLList.prototype.inspect = GraphQLList.prototype.toString;

/**
 * Non-Null Modifier
 *
 * A non-null is a kind of type marker, a wrapping type which points to another
 * type. Non-null types enforce that their values are never null and can ensure
 * an error is raised if this ever occurs during a request. It is useful for
 * fields which you can make a strong guarantee on non-nullability, for example
 * usually the id field of a database row will never be null.
 *
 * Example:
 *
 *     const RowType = new GraphQLObjectType({
 *       name: 'Row',
 *       fields: () => ({
 *         id: { type: new GraphQLNonNull(GraphQLString) },
 *       })
 *     })
 *
 * Note: the enforcement of non-nullability occurs within the executor.
 */

var GraphQLNonNull = exports.GraphQLNonNull = function () {
  function GraphQLNonNull(type) {
    _classCallCheck(this, GraphQLNonNull);

    (0, _invariant2.default)(isType(type) && !(type instanceof GraphQLNonNull), 'Can only create NonNull of a Nullable GraphQLType but got: ' + (String(type) + '.'));
    this.ofType = type;
  }

  GraphQLNonNull.prototype.toString = function toString() {
    return this.ofType.toString() + '!';
  };

  return GraphQLNonNull;
}();

// Also provide toJSON and inspect aliases for toString.


GraphQLNonNull.prototype.toJSON = GraphQLNonNull.prototype.inspect = GraphQLNonNull.prototype.toString;
},{"../jsutils/invariant":97,"../jsutils/isNullish":99,"../language/kinds":105,"../utilities/assertValidName":122}],116:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.specifiedDirectives = exports.GraphQLDeprecatedDirective = exports.DEFAULT_DEPRECATION_REASON = exports.GraphQLSkipDirective = exports.GraphQLIncludeDirective = exports.GraphQLDirective = exports.DirectiveLocation = undefined;

var _definition = require('./definition');

var _scalars = require('./scalars');

var _invariant = require('../jsutils/invariant');

var _invariant2 = _interopRequireDefault(_invariant);

var _assertValidName = require('../utilities/assertValidName');

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

var DirectiveLocation = exports.DirectiveLocation = {
  // Operations
  QUERY: 'QUERY',
  MUTATION: 'MUTATION',
  SUBSCRIPTION: 'SUBSCRIPTION',
  FIELD: 'FIELD',
  FRAGMENT_DEFINITION: 'FRAGMENT_DEFINITION',
  FRAGMENT_SPREAD: 'FRAGMENT_SPREAD',
  INLINE_FRAGMENT: 'INLINE_FRAGMENT',
  // Schema Definitions
  SCHEMA: 'SCHEMA',
  SCALAR: 'SCALAR',
  OBJECT: 'OBJECT',
  FIELD_DEFINITION: 'FIELD_DEFINITION',
  ARGUMENT_DEFINITION: 'ARGUMENT_DEFINITION',
  INTERFACE: 'INTERFACE',
  UNION: 'UNION',
  ENUM: 'ENUM',
  ENUM_VALUE: 'ENUM_VALUE',
  INPUT_OBJECT: 'INPUT_OBJECT',
  INPUT_FIELD_DEFINITION: 'INPUT_FIELD_DEFINITION'
};

// eslint-disable-line

/**
 * Directives are used by the GraphQL runtime as a way of modifying execution
 * behavior. Type system creators will usually not create these directly.
 */
var GraphQLDirective = exports.GraphQLDirective = function GraphQLDirective(config) {
  _classCallCheck(this, GraphQLDirective);

  (0, _invariant2.default)(config.name, 'Directive must be named.');
  (0, _assertValidName.assertValidName)(config.name);
  (0, _invariant2.default)(Array.isArray(config.locations), 'Must provide locations for directive.');
  this.name = config.name;
  this.description = config.description;
  this.locations = config.locations;

  var args = config.args;
  if (!args) {
    this.args = [];
  } else {
    (0, _invariant2.default)(!Array.isArray(args), '@' + config.name + ' args must be an object with argument names as keys.');
    this.args = Object.keys(args).map(function (argName) {
      (0, _assertValidName.assertValidName)(argName);
      var arg = args[argName];
      (0, _invariant2.default)((0, _definition.isInputType)(arg.type), '@' + config.name + '(' + argName + ':) argument type must be ' + ('Input Type but got: ' + String(arg.type) + '.'));
      return {
        name: argName,
        description: arg.description === undefined ? null : arg.description,
        type: arg.type,
        defaultValue: arg.defaultValue
      };
    });
  }
};

/**
 * Used to conditionally include fields or fragments.
 */
var GraphQLIncludeDirective = exports.GraphQLIncludeDirective = new GraphQLDirective({
  name: 'include',
  description: 'Directs the executor to include this field or fragment only when ' + 'the `if` argument is true.',
  locations: [DirectiveLocation.FIELD, DirectiveLocation.FRAGMENT_SPREAD, DirectiveLocation.INLINE_FRAGMENT],
  args: {
    'if': {
      type: new _definition.GraphQLNonNull(_scalars.GraphQLBoolean),
      description: 'Included when true.'
    }
  }
});

/**
 * Used to conditionally skip (exclude) fields or fragments.
 */
var GraphQLSkipDirective = exports.GraphQLSkipDirective = new GraphQLDirective({
  name: 'skip',
  description: 'Directs the executor to skip this field or fragment when the `if` ' + 'argument is true.',
  locations: [DirectiveLocation.FIELD, DirectiveLocation.FRAGMENT_SPREAD, DirectiveLocation.INLINE_FRAGMENT],
  args: {
    'if': {
      type: new _definition.GraphQLNonNull(_scalars.GraphQLBoolean),
      description: 'Skipped when true.'
    }
  }
});

/**
 * Constant string used for default reason for a deprecation.
 */
var DEFAULT_DEPRECATION_REASON = exports.DEFAULT_DEPRECATION_REASON = 'No longer supported';

/**
 * Used to declare element of a GraphQL schema as deprecated.
 */
var GraphQLDeprecatedDirective = exports.GraphQLDeprecatedDirective = new GraphQLDirective({
  name: 'deprecated',
  description: 'Marks an element of a GraphQL schema as no longer supported.',
  locations: [DirectiveLocation.FIELD_DEFINITION, DirectiveLocation.ENUM_VALUE],
  args: {
    reason: {
      type: _scalars.GraphQLString,
      description: 'Explains why this element was deprecated, usually also including a ' + 'suggestion for how to access supported similar data. Formatted ' + 'in [Markdown](https://daringfireball.net/projects/markdown/).',
      defaultValue: DEFAULT_DEPRECATION_REASON
    }
  }
});

/**
 * The full list of specified directives.
 */
var specifiedDirectives = exports.specifiedDirectives = [GraphQLIncludeDirective, GraphQLSkipDirective, GraphQLDeprecatedDirective];
},{"../jsutils/invariant":97,"../utilities/assertValidName":122,"./definition":115,"./scalars":119}],117:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _schema = require('./schema');

Object.defineProperty(exports, 'GraphQLSchema', {
  enumerable: true,
  get: function get() {
    return _schema.GraphQLSchema;
  }
});

var _definition = require('./definition');

Object.defineProperty(exports, 'isType', {
  enumerable: true,
  get: function get() {
    return _definition.isType;
  }
});
Object.defineProperty(exports, 'isInputType', {
  enumerable: true,
  get: function get() {
    return _definition.isInputType;
  }
});
Object.defineProperty(exports, 'isOutputType', {
  enumerable: true,
  get: function get() {
    return _definition.isOutputType;
  }
});
Object.defineProperty(exports, 'isLeafType', {
  enumerable: true,
  get: function get() {
    return _definition.isLeafType;
  }
});
Object.defineProperty(exports, 'isCompositeType', {
  enumerable: true,
  get: function get() {
    return _definition.isCompositeType;
  }
});
Object.defineProperty(exports, 'isAbstractType', {
  enumerable: true,
  get: function get() {
    return _definition.isAbstractType;
  }
});
Object.defineProperty(exports, 'isNamedType', {
  enumerable: true,
  get: function get() {
    return _definition.isNamedType;
  }
});
Object.defineProperty(exports, 'assertType', {
  enumerable: true,
  get: function get() {
    return _definition.assertType;
  }
});
Object.defineProperty(exports, 'assertInputType', {
  enumerable: true,
  get: function get() {
    return _definition.assertInputType;
  }
});
Object.defineProperty(exports, 'assertOutputType', {
  enumerable: true,
  get: function get() {
    return _definition.assertOutputType;
  }
});
Object.defineProperty(exports, 'assertLeafType', {
  enumerable: true,
  get: function get() {
    return _definition.assertLeafType;
  }
});
Object.defineProperty(exports, 'assertCompositeType', {
  enumerable: true,
  get: function get() {
    return _definition.assertCompositeType;
  }
});
Object.defineProperty(exports, 'assertAbstractType', {
  enumerable: true,
  get: function get() {
    return _definition.assertAbstractType;
  }
});
Object.defineProperty(exports, 'assertNamedType', {
  enumerable: true,
  get: function get() {
    return _definition.assertNamedType;
  }
});
Object.defineProperty(exports, 'getNullableType', {
  enumerable: true,
  get: function get() {
    return _definition.getNullableType;
  }
});
Object.defineProperty(exports, 'getNamedType', {
  enumerable: true,
  get: function get() {
    return _definition.getNamedType;
  }
});
Object.defineProperty(exports, 'GraphQLScalarType', {
  enumerable: true,
  get: function get() {
    return _definition.GraphQLScalarType;
  }
});
Object.defineProperty(exports, 'GraphQLObjectType', {
  enumerable: true,
  get: function get() {
    return _definition.GraphQLObjectType;
  }
});
Object.defineProperty(exports, 'GraphQLInterfaceType', {
  enumerable: true,
  get: function get() {
    return _definition.GraphQLInterfaceType;
  }
});
Object.defineProperty(exports, 'GraphQLUnionType', {
  enumerable: true,
  get: function get() {
    return _definition.GraphQLUnionType;
  }
});
Object.defineProperty(exports, 'GraphQLEnumType', {
  enumerable: true,
  get: function get() {
    return _definition.GraphQLEnumType;
  }
});
Object.defineProperty(exports, 'GraphQLInputObjectType', {
  enumerable: true,
  get: function get() {
    return _definition.GraphQLInputObjectType;
  }
});
Object.defineProperty(exports, 'GraphQLList', {
  enumerable: true,
  get: function get() {
    return _definition.GraphQLList;
  }
});
Object.defineProperty(exports, 'GraphQLNonNull', {
  enumerable: true,
  get: function get() {
    return _definition.GraphQLNonNull;
  }
});

var _directives = require('./directives');

Object.defineProperty(exports, 'DirectiveLocation', {
  enumerable: true,
  get: function get() {
    return _directives.DirectiveLocation;
  }
});
Object.defineProperty(exports, 'GraphQLDirective', {
  enumerable: true,
  get: function get() {
    return _directives.GraphQLDirective;
  }
});
Object.defineProperty(exports, 'specifiedDirectives', {
  enumerable: true,
  get: function get() {
    return _directives.specifiedDirectives;
  }
});
Object.defineProperty(exports, 'GraphQLIncludeDirective', {
  enumerable: true,
  get: function get() {
    return _directives.GraphQLIncludeDirective;
  }
});
Object.defineProperty(exports, 'GraphQLSkipDirective', {
  enumerable: true,
  get: function get() {
    return _directives.GraphQLSkipDirective;
  }
});
Object.defineProperty(exports, 'GraphQLDeprecatedDirective', {
  enumerable: true,
  get: function get() {
    return _directives.GraphQLDeprecatedDirective;
  }
});
Object.defineProperty(exports, 'DEFAULT_DEPRECATION_REASON', {
  enumerable: true,
  get: function get() {
    return _directives.DEFAULT_DEPRECATION_REASON;
  }
});

var _scalars = require('./scalars');

Object.defineProperty(exports, 'GraphQLInt', {
  enumerable: true,
  get: function get() {
    return _scalars.GraphQLInt;
  }
});
Object.defineProperty(exports, 'GraphQLFloat', {
  enumerable: true,
  get: function get() {
    return _scalars.GraphQLFloat;
  }
});
Object.defineProperty(exports, 'GraphQLString', {
  enumerable: true,
  get: function get() {
    return _scalars.GraphQLString;
  }
});
Object.defineProperty(exports, 'GraphQLBoolean', {
  enumerable: true,
  get: function get() {
    return _scalars.GraphQLBoolean;
  }
});
Object.defineProperty(exports, 'GraphQLID', {
  enumerable: true,
  get: function get() {
    return _scalars.GraphQLID;
  }
});

var _introspection = require('./introspection');

Object.defineProperty(exports, 'TypeKind', {
  enumerable: true,
  get: function get() {
    return _introspection.TypeKind;
  }
});
Object.defineProperty(exports, '__Schema', {
  enumerable: true,
  get: function get() {
    return _introspection.__Schema;
  }
});
Object.defineProperty(exports, '__Directive', {
  enumerable: true,
  get: function get() {
    return _introspection.__Directive;
  }
});
Object.defineProperty(exports, '__DirectiveLocation', {
  enumerable: true,
  get: function get() {
    return _introspection.__DirectiveLocation;
  }
});
Object.defineProperty(exports, '__Type', {
  enumerable: true,
  get: function get() {
    return _introspection.__Type;
  }
});
Object.defineProperty(exports, '__Field', {
  enumerable: true,
  get: function get() {
    return _introspection.__Field;
  }
});
Object.defineProperty(exports, '__InputValue', {
  enumerable: true,
  get: function get() {
    return _introspection.__InputValue;
  }
});
Object.defineProperty(exports, '__EnumValue', {
  enumerable: true,
  get: function get() {
    return _introspection.__EnumValue;
  }
});
Object.defineProperty(exports, '__TypeKind', {
  enumerable: true,
  get: function get() {
    return _introspection.__TypeKind;
  }
});
Object.defineProperty(exports, 'SchemaMetaFieldDef', {
  enumerable: true,
  get: function get() {
    return _introspection.SchemaMetaFieldDef;
  }
});
Object.defineProperty(exports, 'TypeMetaFieldDef', {
  enumerable: true,
  get: function get() {
    return _introspection.TypeMetaFieldDef;
  }
});
Object.defineProperty(exports, 'TypeNameMetaFieldDef', {
  enumerable: true,
  get: function get() {
    return _introspection.TypeNameMetaFieldDef;
  }
});
},{"./definition":115,"./directives":116,"./introspection":118,"./scalars":119,"./schema":120}],118:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.TypeNameMetaFieldDef = exports.TypeMetaFieldDef = exports.SchemaMetaFieldDef = exports.__TypeKind = exports.TypeKind = exports.__EnumValue = exports.__InputValue = exports.__Field = exports.__Type = exports.__DirectiveLocation = exports.__Directive = exports.__Schema = undefined;

var _isInvalid = require('../jsutils/isInvalid');

var _isInvalid2 = _interopRequireDefault(_isInvalid);

var _astFromValue = require('../utilities/astFromValue');

var _printer = require('../language/printer');

var _definition = require('./definition');

var _scalars = require('./scalars');

var _directives = require('./directives');

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

var __Schema = exports.__Schema = new _definition.GraphQLObjectType({
  name: '__Schema',
  isIntrospection: true,
  description: 'A GraphQL Schema defines the capabilities of a GraphQL server. It ' + 'exposes all available types and directives on the server, as well as ' + 'the entry points for query, mutation, and subscription operations.',
  fields: function fields() {
    return {
      types: {
        description: 'A list of all types supported by this server.',
        type: new _definition.GraphQLNonNull(new _definition.GraphQLList(new _definition.GraphQLNonNull(__Type))),
        resolve: function resolve(schema) {
          var typeMap = schema.getTypeMap();
          return Object.keys(typeMap).map(function (key) {
            return typeMap[key];
          });
        }
      },
      queryType: {
        description: 'The type that query operations will be rooted at.',
        type: new _definition.GraphQLNonNull(__Type),
        resolve: function resolve(schema) {
          return schema.getQueryType();
        }
      },
      mutationType: {
        description: 'If this server supports mutation, the type that ' + 'mutation operations will be rooted at.',
        type: __Type,
        resolve: function resolve(schema) {
          return schema.getMutationType();
        }
      },
      subscriptionType: {
        description: 'If this server support subscription, the type that ' + 'subscription operations will be rooted at.',
        type: __Type,
        resolve: function resolve(schema) {
          return schema.getSubscriptionType();
        }
      },
      directives: {
        description: 'A list of all directives supported by this server.',
        type: new _definition.GraphQLNonNull(new _definition.GraphQLList(new _definition.GraphQLNonNull(__Directive))),
        resolve: function resolve(schema) {
          return schema.getDirectives();
        }
      }
    };
  }
});

var __Directive = exports.__Directive = new _definition.GraphQLObjectType({
  name: '__Directive',
  isIntrospection: true,
  description: 'A Directive provides a way to describe alternate runtime execution and ' + 'type validation behavior in a GraphQL document.' + '\n\nIn some cases, you need to provide options to alter GraphQL\'s ' + 'execution behavior in ways field arguments will not suffice, such as ' + 'conditionally including or skipping a field. Directives provide this by ' + 'describing additional information to the executor.',
  fields: function fields() {
    return {
      name: { type: new _definition.GraphQLNonNull(_scalars.GraphQLString) },
      description: { type: _scalars.GraphQLString },
      locations: {
        type: new _definition.GraphQLNonNull(new _definition.GraphQLList(new _definition.GraphQLNonNull(__DirectiveLocation)))
      },
      args: {
        type: new _definition.GraphQLNonNull(new _definition.GraphQLList(new _definition.GraphQLNonNull(__InputValue))),
        resolve: function resolve(directive) {
          return directive.args || [];
        }
      },
      // NOTE: the following three fields are deprecated and are no longer part
      // of the GraphQL specification.
      onOperation: {
        deprecationReason: 'Use `locations`.',
        type: new _definition.GraphQLNonNull(_scalars.GraphQLBoolean),
        resolve: function resolve(d) {
          return d.locations.indexOf(_directives.DirectiveLocation.QUERY) !== -1 || d.locations.indexOf(_directives.DirectiveLocation.MUTATION) !== -1 || d.locations.indexOf(_directives.DirectiveLocation.SUBSCRIPTION) !== -1;
        }
      },
      onFragment: {
        deprecationReason: 'Use `locations`.',
        type: new _definition.GraphQLNonNull(_scalars.GraphQLBoolean),
        resolve: function resolve(d) {
          return d.locations.indexOf(_directives.DirectiveLocation.FRAGMENT_SPREAD) !== -1 || d.locations.indexOf(_directives.DirectiveLocation.INLINE_FRAGMENT) !== -1 || d.locations.indexOf(_directives.DirectiveLocation.FRAGMENT_DEFINITION) !== -1;
        }
      },
      onField: {
        deprecationReason: 'Use `locations`.',
        type: new _definition.GraphQLNonNull(_scalars.GraphQLBoolean),
        resolve: function resolve(d) {
          return d.locations.indexOf(_directives.DirectiveLocation.FIELD) !== -1;
        }
      }
    };
  }
});

var __DirectiveLocation = exports.__DirectiveLocation = new _definition.GraphQLEnumType({
  name: '__DirectiveLocation',
  isIntrospection: true,
  description: 'A Directive can be adjacent to many parts of the GraphQL language, a ' + '__DirectiveLocation describes one such possible adjacencies.',
  values: {
    QUERY: {
      value: _directives.DirectiveLocation.QUERY,
      description: 'Location adjacent to a query operation.'
    },
    MUTATION: {
      value: _directives.DirectiveLocation.MUTATION,
      description: 'Location adjacent to a mutation operation.'
    },
    SUBSCRIPTION: {
      value: _directives.DirectiveLocation.SUBSCRIPTION,
      description: 'Location adjacent to a subscription operation.'
    },
    FIELD: {
      value: _directives.DirectiveLocation.FIELD,
      description: 'Location adjacent to a field.'
    },
    FRAGMENT_DEFINITION: {
      value: _directives.DirectiveLocation.FRAGMENT_DEFINITION,
      description: 'Location adjacent to a fragment definition.'
    },
    FRAGMENT_SPREAD: {
      value: _directives.DirectiveLocation.FRAGMENT_SPREAD,
      description: 'Location adjacent to a fragment spread.'
    },
    INLINE_FRAGMENT: {
      value: _directives.DirectiveLocation.INLINE_FRAGMENT,
      description: 'Location adjacent to an inline fragment.'
    },
    SCHEMA: {
      value: _directives.DirectiveLocation.SCHEMA,
      description: 'Location adjacent to a schema definition.'
    },
    SCALAR: {
      value: _directives.DirectiveLocation.SCALAR,
      description: 'Location adjacent to a scalar definition.'
    },
    OBJECT: {
      value: _directives.DirectiveLocation.OBJECT,
      description: 'Location adjacent to an object type definition.'
    },
    FIELD_DEFINITION: {
      value: _directives.DirectiveLocation.FIELD_DEFINITION,
      description: 'Location adjacent to a field definition.'
    },
    ARGUMENT_DEFINITION: {
      value: _directives.DirectiveLocation.ARGUMENT_DEFINITION,
      description: 'Location adjacent to an argument definition.'
    },
    INTERFACE: {
      value: _directives.DirectiveLocation.INTERFACE,
      description: 'Location adjacent to an interface definition.'
    },
    UNION: {
      value: _directives.DirectiveLocation.UNION,
      description: 'Location adjacent to a union definition.'
    },
    ENUM: {
      value: _directives.DirectiveLocation.ENUM,
      description: 'Location adjacent to an enum definition.'
    },
    ENUM_VALUE: {
      value: _directives.DirectiveLocation.ENUM_VALUE,
      description: 'Location adjacent to an enum value definition.'
    },
    INPUT_OBJECT: {
      value: _directives.DirectiveLocation.INPUT_OBJECT,
      description: 'Location adjacent to an input object type definition.'
    },
    INPUT_FIELD_DEFINITION: {
      value: _directives.DirectiveLocation.INPUT_FIELD_DEFINITION,
      description: 'Location adjacent to an input object field definition.'
    }
  }
});

var __Type = exports.__Type = new _definition.GraphQLObjectType({
  name: '__Type',
  isIntrospection: true,
  description: 'The fundamental unit of any GraphQL Schema is the type. There are ' + 'many kinds of types in GraphQL as represented by the `__TypeKind` enum.' + '\n\nDepending on the kind of a type, certain fields describe ' + 'information about that type. Scalar types provide no information ' + 'beyond a name and description, while Enum types provide their values. ' + 'Object and Interface types provide the fields they describe. Abstract ' + 'types, Union and Interface, provide the Object types possible ' + 'at runtime. List and NonNull types compose other types.',
  fields: function fields() {
    return {
      kind: {
        type: new _definition.GraphQLNonNull(__TypeKind),
        resolve: function resolve(type) {
          if (type instanceof _definition.GraphQLScalarType) {
            return TypeKind.SCALAR;
          } else if (type instanceof _definition.GraphQLObjectType) {
            return TypeKind.OBJECT;
          } else if (type instanceof _definition.GraphQLInterfaceType) {
            return TypeKind.INTERFACE;
          } else if (type instanceof _definition.GraphQLUnionType) {
            return TypeKind.UNION;
          } else if (type instanceof _definition.GraphQLEnumType) {
            return TypeKind.ENUM;
          } else if (type instanceof _definition.GraphQLInputObjectType) {
            return TypeKind.INPUT_OBJECT;
          } else if (type instanceof _definition.GraphQLList) {
            return TypeKind.LIST;
          } else if (type instanceof _definition.GraphQLNonNull) {
            return TypeKind.NON_NULL;
          }
          throw new Error('Unknown kind of type: ' + type);
        }
      },
      name: { type: _scalars.GraphQLString },
      description: { type: _scalars.GraphQLString },
      fields: {
        type: new _definition.GraphQLList(new _definition.GraphQLNonNull(__Field)),
        args: {
          includeDeprecated: { type: _scalars.GraphQLBoolean, defaultValue: false }
        },
        resolve: function resolve(type, _ref) {
          var includeDeprecated = _ref.includeDeprecated;

          if (type instanceof _definition.GraphQLObjectType || type instanceof _definition.GraphQLInterfaceType) {
            var fieldMap = type.getFields();
            var fields = Object.keys(fieldMap).map(function (fieldName) {
              return fieldMap[fieldName];
            });
            if (!includeDeprecated) {
              fields = fields.filter(function (field) {
                return !field.deprecationReason;
              });
            }
            return fields;
          }
          return null;
        }
      },
      interfaces: {
        type: new _definition.GraphQLList(new _definition.GraphQLNonNull(__Type)),
        resolve: function resolve(type) {
          if (type instanceof _definition.GraphQLObjectType) {
            return type.getInterfaces();
          }
        }
      },
      possibleTypes: {
        type: new _definition.GraphQLList(new _definition.GraphQLNonNull(__Type)),
        resolve: function resolve(type, args, context, _ref2) {
          var schema = _ref2.schema;

          if ((0, _definition.isAbstractType)(type)) {
            return schema.getPossibleTypes(type);
          }
        }
      },
      enumValues: {
        type: new _definition.GraphQLList(new _definition.GraphQLNonNull(__EnumValue)),
        args: {
          includeDeprecated: { type: _scalars.GraphQLBoolean, defaultValue: false }
        },
        resolve: function resolve(type, _ref3) {
          var includeDeprecated = _ref3.includeDeprecated;

          if (type instanceof _definition.GraphQLEnumType) {
            var values = type.getValues();
            if (!includeDeprecated) {
              values = values.filter(function (value) {
                return !value.deprecationReason;
              });
            }
            return values;
          }
        }
      },
      inputFields: {
        type: new _definition.GraphQLList(new _definition.GraphQLNonNull(__InputValue)),
        resolve: function resolve(type) {
          if (type instanceof _definition.GraphQLInputObjectType) {
            var fieldMap = type.getFields();
            return Object.keys(fieldMap).map(function (fieldName) {
              return fieldMap[fieldName];
            });
          }
        }
      },
      ofType: { type: __Type }
    };
  }
});

var __Field = exports.__Field = new _definition.GraphQLObjectType({
  name: '__Field',
  isIntrospection: true,
  description: 'Object and Interface types are described by a list of Fields, each of ' + 'which has a name, potentially a list of arguments, and a return type.',
  fields: function fields() {
    return {
      name: { type: new _definition.GraphQLNonNull(_scalars.GraphQLString) },
      description: { type: _scalars.GraphQLString },
      args: {
        type: new _definition.GraphQLNonNull(new _definition.GraphQLList(new _definition.GraphQLNonNull(__InputValue))),
        resolve: function resolve(field) {
          return field.args || [];
        }
      },
      type: { type: new _definition.GraphQLNonNull(__Type) },
      isDeprecated: { type: new _definition.GraphQLNonNull(_scalars.GraphQLBoolean) },
      deprecationReason: {
        type: _scalars.GraphQLString
      }
    };
  }
});

var __InputValue = exports.__InputValue = new _definition.GraphQLObjectType({
  name: '__InputValue',
  isIntrospection: true,
  description: 'Arguments provided to Fields or Directives and the input fields of an ' + 'InputObject are represented as Input Values which describe their type ' + 'and optionally a default value.',
  fields: function fields() {
    return {
      name: { type: new _definition.GraphQLNonNull(_scalars.GraphQLString) },
      description: { type: _scalars.GraphQLString },
      type: { type: new _definition.GraphQLNonNull(__Type) },
      defaultValue: {
        type: _scalars.GraphQLString,
        description: 'A GraphQL-formatted string representing the default value for this ' + 'input value.',
        resolve: function resolve(inputVal) {
          return (0, _isInvalid2.default)(inputVal.defaultValue) ? null : (0, _printer.print)((0, _astFromValue.astFromValue)(inputVal.defaultValue, inputVal.type));
        }
      }
    };
  }
});

var __EnumValue = exports.__EnumValue = new _definition.GraphQLObjectType({
  name: '__EnumValue',
  isIntrospection: true,
  description: 'One possible value for a given Enum. Enum values are unique values, not ' + 'a placeholder for a string or numeric value. However an Enum value is ' + 'returned in a JSON response as a string.',
  fields: function fields() {
    return {
      name: { type: new _definition.GraphQLNonNull(_scalars.GraphQLString) },
      description: { type: _scalars.GraphQLString },
      isDeprecated: { type: new _definition.GraphQLNonNull(_scalars.GraphQLBoolean) },
      deprecationReason: {
        type: _scalars.GraphQLString
      }
    };
  }
});

var TypeKind = exports.TypeKind = {
  SCALAR: 'SCALAR',
  OBJECT: 'OBJECT',
  INTERFACE: 'INTERFACE',
  UNION: 'UNION',
  ENUM: 'ENUM',
  INPUT_OBJECT: 'INPUT_OBJECT',
  LIST: 'LIST',
  NON_NULL: 'NON_NULL'
};

var __TypeKind = exports.__TypeKind = new _definition.GraphQLEnumType({
  name: '__TypeKind',
  isIntrospection: true,
  description: 'An enum describing what kind of type a given `__Type` is.',
  values: {
    SCALAR: {
      value: TypeKind.SCALAR,
      description: 'Indicates this type is a scalar.'
    },
    OBJECT: {
      value: TypeKind.OBJECT,
      description: 'Indicates this type is an object. ' + '`fields` and `interfaces` are valid fields.'
    },
    INTERFACE: {
      value: TypeKind.INTERFACE,
      description: 'Indicates this type is an interface. ' + '`fields` and `possibleTypes` are valid fields.'
    },
    UNION: {
      value: TypeKind.UNION,
      description: 'Indicates this type is a union. ' + '`possibleTypes` is a valid field.'
    },
    ENUM: {
      value: TypeKind.ENUM,
      description: 'Indicates this type is an enum. ' + '`enumValues` is a valid field.'
    },
    INPUT_OBJECT: {
      value: TypeKind.INPUT_OBJECT,
      description: 'Indicates this type is an input object. ' + '`inputFields` is a valid field.'
    },
    LIST: {
      value: TypeKind.LIST,
      description: 'Indicates this type is a list. ' + '`ofType` is a valid field.'
    },
    NON_NULL: {
      value: TypeKind.NON_NULL,
      description: 'Indicates this type is a non-null. ' + '`ofType` is a valid field.'
    }
  }
});

/**
 * Note that these are GraphQLField and not GraphQLFieldConfig,
 * so the format for args is different.
 */

var SchemaMetaFieldDef = exports.SchemaMetaFieldDef = {
  name: '__schema',
  type: new _definition.GraphQLNonNull(__Schema),
  description: 'Access the current type schema of this server.',
  args: [],
  resolve: function resolve(source, args, context, _ref4) {
    var schema = _ref4.schema;
    return schema;
  }
};

var TypeMetaFieldDef = exports.TypeMetaFieldDef = {
  name: '__type',
  type: __Type,
  description: 'Request the type information of a single type.',
  args: [{ name: 'name', type: new _definition.GraphQLNonNull(_scalars.GraphQLString) }],
  resolve: function resolve(source, _ref5, context, _ref6) {
    var name = _ref5.name;
    var schema = _ref6.schema;
    return schema.getType(name);
  }
};

var TypeNameMetaFieldDef = exports.TypeNameMetaFieldDef = {
  name: '__typename',
  type: new _definition.GraphQLNonNull(_scalars.GraphQLString),
  description: 'The name of the current Object type at runtime.',
  args: [],
  resolve: function resolve(source, args, context, _ref7) {
    var parentType = _ref7.parentType;
    return parentType.name;
  }
};
},{"../jsutils/isInvalid":98,"../language/printer":109,"../utilities/astFromValue":123,"./definition":115,"./directives":116,"./scalars":119}],119:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.GraphQLID = exports.GraphQLBoolean = exports.GraphQLString = exports.GraphQLFloat = exports.GraphQLInt = undefined;

var _definition = require('./definition');

var _kinds = require('../language/kinds');

var Kind = _interopRequireWildcard(_kinds);

function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }

// As per the GraphQL Spec, Integers are only treated as valid when a valid
// 32-bit signed integer, providing the broadest support across platforms.
//
// n.b. JavaScript's integers are safe between -(2^53 - 1) and 2^53 - 1 because
// they are internally represented as IEEE 754 doubles.

/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

var MAX_INT = 2147483647;
var MIN_INT = -2147483648;

function coerceInt(value) {
  if (value === '') {
    throw new TypeError('Int cannot represent non 32-bit signed integer value: (empty string)');
  }
  var num = Number(value);
  if (num !== num || num > MAX_INT || num < MIN_INT) {
    throw new TypeError('Int cannot represent non 32-bit signed integer value: ' + String(value));
  }
  var int = Math.floor(num);
  if (int !== num) {
    throw new TypeError('Int cannot represent non-integer value: ' + String(value));
  }
  return int;
}

var GraphQLInt = exports.GraphQLInt = new _definition.GraphQLScalarType({
  name: 'Int',
  description: 'The `Int` scalar type represents non-fractional signed whole numeric ' + 'values. Int can represent values between -(2^31) and 2^31 - 1. ',
  serialize: coerceInt,
  parseValue: coerceInt,
  parseLiteral: function parseLiteral(ast) {
    if (ast.kind === Kind.INT) {
      var num = parseInt(ast.value, 10);
      if (num <= MAX_INT && num >= MIN_INT) {
        return num;
      }
    }
    return null;
  }
});

function coerceFloat(value) {
  if (value === '') {
    throw new TypeError('Float cannot represent non numeric value: (empty string)');
  }
  var num = Number(value);
  if (num === num) {
    return num;
  }
  throw new TypeError('Float cannot represent non numeric value: ' + String(value));
}

var GraphQLFloat = exports.GraphQLFloat = new _definition.GraphQLScalarType({
  name: 'Float',
  description: 'The `Float` scalar type represents signed double-precision fractional ' + 'values as specified by ' + '[IEEE 754](http://en.wikipedia.org/wiki/IEEE_floating_point). ',
  serialize: coerceFloat,
  parseValue: coerceFloat,
  parseLiteral: function parseLiteral(ast) {
    return ast.kind === Kind.FLOAT || ast.kind === Kind.INT ? parseFloat(ast.value) : null;
  }
});

var GraphQLString = exports.GraphQLString = new _definition.GraphQLScalarType({
  name: 'String',
  description: 'The `String` scalar type represents textual data, represented as UTF-8 ' + 'character sequences. The String type is most often used by GraphQL to ' + 'represent free-form human-readable text.',
  serialize: String,
  parseValue: String,
  parseLiteral: function parseLiteral(ast) {
    return ast.kind === Kind.STRING ? ast.value : null;
  }
});

var GraphQLBoolean = exports.GraphQLBoolean = new _definition.GraphQLScalarType({
  name: 'Boolean',
  description: 'The `Boolean` scalar type represents `true` or `false`.',
  serialize: Boolean,
  parseValue: Boolean,
  parseLiteral: function parseLiteral(ast) {
    return ast.kind === Kind.BOOLEAN ? ast.value : null;
  }
});

var GraphQLID = exports.GraphQLID = new _definition.GraphQLScalarType({
  name: 'ID',
  description: 'The `ID` scalar type represents a unique identifier, often used to ' + 'refetch an object or as key for a cache. The ID type appears in a JSON ' + 'response as a String; however, it is not intended to be human-readable. ' + 'When expected as an input type, any string (such as `"4"`) or integer ' + '(such as `4`) input value will be accepted as an ID.',
  serialize: String,
  parseValue: String,
  parseLiteral: function parseLiteral(ast) {
    return ast.kind === Kind.STRING || ast.kind === Kind.INT ? ast.value : null;
  }
});
},{"../language/kinds":105,"./definition":115}],120:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.GraphQLSchema = undefined;

var _definition = require('./definition');

var _directives = require('./directives');

var _introspection = require('./introspection');

var _find = require('../jsutils/find');

var _find2 = _interopRequireDefault(_find);

var _invariant = require('../jsutils/invariant');

var _invariant2 = _interopRequireDefault(_invariant);

var _typeComparators = require('../utilities/typeComparators');

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

/**
 * Schema Definition
 *
 * A Schema is created by supplying the root types of each type of operation,
 * query and mutation (optional). A schema definition is then supplied to the
 * validator and executor.
 *
 * Example:
 *
 *     const MyAppSchema = new GraphQLSchema({
 *       query: MyAppQueryRootType,
 *       mutation: MyAppMutationRootType,
 *     })
 *
 * Note: If an array of `directives` are provided to GraphQLSchema, that will be
 * the exact list of directives represented and allowed. If `directives` is not
 * provided then a default set of the specified directives (e.g. @include and
 * @skip) will be used. If you wish to provide *additional* directives to these
 * specified directives, you must explicitly declare them. Example:
 *
 *     const MyAppSchema = new GraphQLSchema({
 *       ...
 *       directives: specifiedDirectives.concat([ myCustomDirective ]),
 *     })
 *
 */
var GraphQLSchema = exports.GraphQLSchema = function () {
  function GraphQLSchema(config) {
    var _this = this;

    _classCallCheck(this, GraphQLSchema);

    (0, _invariant2.default)(typeof config === 'object', 'Must provide configuration object.');

    (0, _invariant2.default)(config.query instanceof _definition.GraphQLObjectType, 'Schema query must be Object Type but got: ' + String(config.query) + '.');
    this._queryType = config.query;

    (0, _invariant2.default)(!config.mutation || config.mutation instanceof _definition.GraphQLObjectType, 'Schema mutation must be Object Type if provided but got: ' + String(config.mutation) + '.');
    this._mutationType = config.mutation;

    (0, _invariant2.default)(!config.subscription || config.subscription instanceof _definition.GraphQLObjectType, 'Schema subscription must be Object Type if provided but got: ' + String(config.subscription) + '.');
    this._subscriptionType = config.subscription;

    (0, _invariant2.default)(!config.types || Array.isArray(config.types), 'Schema types must be Array if provided but got: ' + String(config.types) + '.');

    (0, _invariant2.default)(!config.directives || Array.isArray(config.directives) && config.directives.every(function (directive) {
      return directive instanceof _directives.GraphQLDirective;
    }), 'Schema directives must be Array<GraphQLDirective> if provided but got: ' + String(config.directives) + '.');
    // Provide specified directives (e.g. @include and @skip) by default.
    this._directives = config.directives || _directives.specifiedDirectives;

    // Build type map now to detect any errors within this schema.
    var initialTypes = [this.getQueryType(), this.getMutationType(), this.getSubscriptionType(), _introspection.__Schema];

    var types = config.types;
    if (types) {
      initialTypes = initialTypes.concat(types);
    }

    this._typeMap = initialTypes.reduce(typeMapReducer, Object.create(null));

    // Keep track of all implementations by interface name.
    this._implementations = Object.create(null);
    Object.keys(this._typeMap).forEach(function (typeName) {
      var type = _this._typeMap[typeName];
      if (type instanceof _definition.GraphQLObjectType) {
        type.getInterfaces().forEach(function (iface) {
          var impls = _this._implementations[iface.name];
          if (impls) {
            impls.push(type);
          } else {
            _this._implementations[iface.name] = [type];
          }
        });
      }
    });

    // Enforce correct interface implementations.
    Object.keys(this._typeMap).forEach(function (typeName) {
      var type = _this._typeMap[typeName];
      if (type instanceof _definition.GraphQLObjectType) {
        type.getInterfaces().forEach(function (iface) {
          return assertObjectImplementsInterface(_this, type, iface);
        });
      }
    });
  }

  GraphQLSchema.prototype.getQueryType = function getQueryType() {
    return this._queryType;
  };

  GraphQLSchema.prototype.getMutationType = function getMutationType() {
    return this._mutationType;
  };

  GraphQLSchema.prototype.getSubscriptionType = function getSubscriptionType() {
    return this._subscriptionType;
  };

  GraphQLSchema.prototype.getTypeMap = function getTypeMap() {
    return this._typeMap;
  };

  GraphQLSchema.prototype.getType = function getType(name) {
    return this.getTypeMap()[name];
  };

  GraphQLSchema.prototype.getPossibleTypes = function getPossibleTypes(abstractType) {
    if (abstractType instanceof _definition.GraphQLUnionType) {
      return abstractType.getTypes();
    }
    (0, _invariant2.default)(abstractType instanceof _definition.GraphQLInterfaceType);
    return this._implementations[abstractType.name];
  };

  GraphQLSchema.prototype.isPossibleType = function isPossibleType(abstractType, possibleType) {
    var possibleTypeMap = this._possibleTypeMap;
    if (!possibleTypeMap) {
      this._possibleTypeMap = possibleTypeMap = Object.create(null);
    }

    if (!possibleTypeMap[abstractType.name]) {
      var possibleTypes = this.getPossibleTypes(abstractType);
      (0, _invariant2.default)(Array.isArray(possibleTypes), 'Could not find possible implementing types for ' + abstractType.name + ' ' + 'in schema. Check that schema.types is defined and is an array of ' + 'all possible types in the schema.');
      possibleTypeMap[abstractType.name] = possibleTypes.reduce(function (map, type) {
        return map[type.name] = true, map;
      }, Object.create(null));
    }

    return Boolean(possibleTypeMap[abstractType.name][possibleType.name]);
  };

  GraphQLSchema.prototype.getDirectives = function getDirectives() {
    return this._directives;
  };

  GraphQLSchema.prototype.getDirective = function getDirective(name) {
    return (0, _find2.default)(this.getDirectives(), function (directive) {
      return directive.name === name;
    });
  };

  return GraphQLSchema;
}();

function typeMapReducer(map, type) {
  if (!type) {
    return map;
  }
  if (type instanceof _definition.GraphQLList || type instanceof _definition.GraphQLNonNull) {
    return typeMapReducer(map, type.ofType);
  }
  if (map[type.name]) {
    (0, _invariant2.default)(map[type.name] === type, 'Schema must contain unique named types but contains multiple ' + ('types named "' + type.name + '".'));
    return map;
  }
  map[type.name] = type;

  var reducedMap = map;

  if (type instanceof _definition.GraphQLUnionType) {
    reducedMap = type.getTypes().reduce(typeMapReducer, reducedMap);
  }

  if (type instanceof _definition.GraphQLObjectType) {
    reducedMap = type.getInterfaces().reduce(typeMapReducer, reducedMap);
  }

  if (type instanceof _definition.GraphQLObjectType || type instanceof _definition.GraphQLInterfaceType) {
    var fieldMap = type.getFields();
    Object.keys(fieldMap).forEach(function (fieldName) {
      var field = fieldMap[fieldName];

      if (field.args) {
        var fieldArgTypes = field.args.map(function (arg) {
          return arg.type;
        });
        reducedMap = fieldArgTypes.reduce(typeMapReducer, reducedMap);
      }
      reducedMap = typeMapReducer(reducedMap, field.type);
    });
  }

  if (type instanceof _definition.GraphQLInputObjectType) {
    var _fieldMap = type.getFields();
    Object.keys(_fieldMap).forEach(function (fieldName) {
      var field = _fieldMap[fieldName];
      reducedMap = typeMapReducer(reducedMap, field.type);
    });
  }

  return reducedMap;
}

function assertObjectImplementsInterface(schema, object, iface) {
  var objectFieldMap = object.getFields();
  var ifaceFieldMap = iface.getFields();

  // Assert each interface field is implemented.
  Object.keys(ifaceFieldMap).forEach(function (fieldName) {
    var objectField = objectFieldMap[fieldName];
    var ifaceField = ifaceFieldMap[fieldName];

    // Assert interface field exists on object.
    (0, _invariant2.default)(objectField, '"' + iface.name + '" expects field "' + fieldName + '" but "' + object.name + '" ' + 'does not provide it.');

    // Assert interface field type is satisfied by object field type, by being
    // a valid subtype. (covariant)
    (0, _invariant2.default)((0, _typeComparators.isTypeSubTypeOf)(schema, objectField.type, ifaceField.type), iface.name + '.' + fieldName + ' expects type "' + String(ifaceField.type) + '" ' + 'but ' + (object.name + '.' + fieldName + ' provides type "' + String(objectField.type) + '".'));

    // Assert each interface field arg is implemented.
    ifaceField.args.forEach(function (ifaceArg) {
      var argName = ifaceArg.name;
      var objectArg = (0, _find2.default)(objectField.args, function (arg) {
        return arg.name === argName;
      });

      // Assert interface field arg exists on object field.
      (0, _invariant2.default)(objectArg, iface.name + '.' + fieldName + ' expects argument "' + argName + '" but ' + (object.name + '.' + fieldName + ' does not provide it.'));

      // Assert interface field arg type matches object field arg type.
      // (invariant)
      (0, _invariant2.default)((0, _typeComparators.isEqualType)(ifaceArg.type, objectArg.type), iface.name + '.' + fieldName + '(' + argName + ':) expects type ' + ('"' + String(ifaceArg.type) + '" but ') + (object.name + '.' + fieldName + '(' + argName + ':) provides type ') + ('"' + String(objectArg.type) + '".'));
    });

    // Assert additional arguments must not be required.
    objectField.args.forEach(function (objectArg) {
      var argName = objectArg.name;
      var ifaceArg = (0, _find2.default)(ifaceField.args, function (arg) {
        return arg.name === argName;
      });
      if (!ifaceArg) {
        (0, _invariant2.default)(!(objectArg.type instanceof _definition.GraphQLNonNull), object.name + '.' + fieldName + '(' + argName + ':) is of required type ' + ('"' + String(objectArg.type) + '" but is not also provided by the ') + ('interface ' + iface.name + '.' + fieldName + '.'));
      }
    });
  });
}
},{"../jsutils/find":96,"../jsutils/invariant":97,"../utilities/typeComparators":137,"./definition":115,"./directives":116,"./introspection":118}],121:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.TypeInfo = undefined;

var _kinds = require('../language/kinds');

var Kind = _interopRequireWildcard(_kinds);

var _definition = require('../type/definition');

var _introspection = require('../type/introspection');

var _typeFromAST = require('./typeFromAST');

var _find = require('../jsutils/find');

var _find2 = _interopRequireDefault(_find);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

/**
 * TypeInfo is a utility class which, given a GraphQL schema, can keep track
 * of the current field and type definitions at any point in a GraphQL document
 * AST during a recursive descent by calling `enter(node)` and `leave(node)`.
 */
var TypeInfo = exports.TypeInfo = function () {
  function TypeInfo(schema,
  // NOTE: this experimental optional second parameter is only needed in order
  // to support non-spec-compliant codebases. You should never need to use it.
  getFieldDefFn) {
    _classCallCheck(this, TypeInfo);

    this._schema = schema;
    this._typeStack = [];
    this._parentTypeStack = [];
    this._inputTypeStack = [];
    this._fieldDefStack = [];
    this._directive = null;
    this._argument = null;
    this._enumValue = null;
    this._getFieldDef = getFieldDefFn || getFieldDef;
  }

  TypeInfo.prototype.getType = function getType() {
    if (this._typeStack.length > 0) {
      return this._typeStack[this._typeStack.length - 1];
    }
  };

  TypeInfo.prototype.getParentType = function getParentType() {
    if (this._parentTypeStack.length > 0) {
      return this._parentTypeStack[this._parentTypeStack.length - 1];
    }
  };

  TypeInfo.prototype.getInputType = function getInputType() {
    if (this._inputTypeStack.length > 0) {
      return this._inputTypeStack[this._inputTypeStack.length - 1];
    }
  };

  TypeInfo.prototype.getFieldDef = function getFieldDef() {
    if (this._fieldDefStack.length > 0) {
      return this._fieldDefStack[this._fieldDefStack.length - 1];
    }
  };

  TypeInfo.prototype.getDirective = function getDirective() {
    return this._directive;
  };

  TypeInfo.prototype.getArgument = function getArgument() {
    return this._argument;
  };

  TypeInfo.prototype.getEnumValue = function getEnumValue() {
    return this._enumValue;
  };

  // Flow does not yet handle this case.


  TypeInfo.prototype.enter = function enter(node /* ASTNode */) {
    var schema = this._schema;
    switch (node.kind) {
      case Kind.SELECTION_SET:
        var namedType = (0, _definition.getNamedType)(this.getType());
        this._parentTypeStack.push((0, _definition.isCompositeType)(namedType) ? namedType : undefined);
        break;
      case Kind.FIELD:
        var parentType = this.getParentType();
        var fieldDef = void 0;
        if (parentType) {
          fieldDef = this._getFieldDef(schema, parentType, node);
        }
        this._fieldDefStack.push(fieldDef);
        this._typeStack.push(fieldDef && fieldDef.type);
        break;
      case Kind.DIRECTIVE:
        this._directive = schema.getDirective(node.name.value);
        break;
      case Kind.OPERATION_DEFINITION:
        var type = void 0;
        if (node.operation === 'query') {
          type = schema.getQueryType();
        } else if (node.operation === 'mutation') {
          type = schema.getMutationType();
        } else if (node.operation === 'subscription') {
          type = schema.getSubscriptionType();
        }
        this._typeStack.push(type);
        break;
      case Kind.INLINE_FRAGMENT:
      case Kind.FRAGMENT_DEFINITION:
        var typeConditionAST = node.typeCondition;
        var outputType = typeConditionAST ? (0, _typeFromAST.typeFromAST)(schema, typeConditionAST) : this.getType();
        this._typeStack.push((0, _definition.isOutputType)(outputType) ? outputType : undefined);
        break;
      case Kind.VARIABLE_DEFINITION:
        var inputType = (0, _typeFromAST.typeFromAST)(schema, node.type);
        this._inputTypeStack.push((0, _definition.isInputType)(inputType) ? inputType : undefined);
        break;
      case Kind.ARGUMENT:
        var argDef = void 0;
        var argType = void 0;
        var fieldOrDirective = this.getDirective() || this.getFieldDef();
        if (fieldOrDirective) {
          argDef = (0, _find2.default)(fieldOrDirective.args, function (arg) {
            return arg.name === node.name.value;
          });
          if (argDef) {
            argType = argDef.type;
          }
        }
        this._argument = argDef;
        this._inputTypeStack.push(argType);
        break;
      case Kind.LIST:
        var listType = (0, _definition.getNullableType)(this.getInputType());
        this._inputTypeStack.push(listType instanceof _definition.GraphQLList ? listType.ofType : undefined);
        break;
      case Kind.OBJECT_FIELD:
        var objectType = (0, _definition.getNamedType)(this.getInputType());
        var fieldType = void 0;
        if (objectType instanceof _definition.GraphQLInputObjectType) {
          var inputField = objectType.getFields()[node.name.value];
          fieldType = inputField ? inputField.type : undefined;
        }
        this._inputTypeStack.push(fieldType);
        break;
      case Kind.ENUM:
        var enumType = (0, _definition.getNamedType)(this.getInputType());
        var enumValue = void 0;
        if (enumType instanceof _definition.GraphQLEnumType) {
          enumValue = enumType.getValue(node.value);
        }
        this._enumValue = enumValue;
        break;
    }
  };

  TypeInfo.prototype.leave = function leave(node) {
    switch (node.kind) {
      case Kind.SELECTION_SET:
        this._parentTypeStack.pop();
        break;
      case Kind.FIELD:
        this._fieldDefStack.pop();
        this._typeStack.pop();
        break;
      case Kind.DIRECTIVE:
        this._directive = null;
        break;
      case Kind.OPERATION_DEFINITION:
      case Kind.INLINE_FRAGMENT:
      case Kind.FRAGMENT_DEFINITION:
        this._typeStack.pop();
        break;
      case Kind.VARIABLE_DEFINITION:
        this._inputTypeStack.pop();
        break;
      case Kind.ARGUMENT:
        this._argument = null;
        this._inputTypeStack.pop();
        break;
      case Kind.LIST:
      case Kind.OBJECT_FIELD:
        this._inputTypeStack.pop();
        break;
      case Kind.ENUM:
        this._enumValue = null;
        break;
    }
  };

  return TypeInfo;
}();

/**
 * Not exactly the same as the executor's definition of getFieldDef, in this
 * statically evaluated environment we do not always have an Object type,
 * and need to handle Interface and Union types.
 */


function getFieldDef(schema, parentType, fieldNode) {
  var name = fieldNode.name.value;
  if (name === _introspection.SchemaMetaFieldDef.name && schema.getQueryType() === parentType) {
    return _introspection.SchemaMetaFieldDef;
  }
  if (name === _introspection.TypeMetaFieldDef.name && schema.getQueryType() === parentType) {
    return _introspection.TypeMetaFieldDef;
  }
  if (name === _introspection.TypeNameMetaFieldDef.name && (0, _definition.isCompositeType)(parentType)) {
    return _introspection.TypeNameMetaFieldDef;
  }
  if (parentType instanceof _definition.GraphQLObjectType || parentType instanceof _definition.GraphQLInterfaceType) {
    return parentType.getFields()[name];
  }
}
},{"../jsutils/find":96,"../language/kinds":105,"../type/definition":115,"../type/introspection":118,"./typeFromAST":138}],122:[function(require,module,exports){
(function (process){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.assertValidName = assertValidName;
exports.formatWarning = formatWarning;

/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

var NAME_RX = /^[_a-zA-Z][_a-zA-Z0-9]*$/;
var ERROR_PREFIX_RX = /^Error: /;

// Silences warnings if an environment flag is enabled
var noNameWarning = Boolean(process && process.env && process.env.GRAPHQL_NO_NAME_WARNING);

// Ensures console warnings are only issued once.
var hasWarnedAboutDunder = false;

/**
 * Upholds the spec rules about naming.
 */
function assertValidName(name, isIntrospection) {
  if (!name || typeof name !== 'string') {
    throw new Error('Must be named. Unexpected name: ' + name + '.');
  }
  if (!isIntrospection && !hasWarnedAboutDunder && !noNameWarning && name.slice(0, 2) === '__') {
    hasWarnedAboutDunder = true;
    /* eslint-disable no-console */
    if (console && console.warn) {
      var error = new Error('Name "' + name + '" must not begin with "__", which is reserved by ' + 'GraphQL introspection. In a future release of graphql this will ' + 'become a hard error.');
      console.warn(formatWarning(error));
    }
    /* eslint-enable no-console */
  }
  if (!NAME_RX.test(name)) {
    throw new Error('Names must match /^[_a-zA-Z][_a-zA-Z0-9]*$/ but "' + name + '" does not.');
  }
}

/**
 * Returns a human-readable warning based an the supplied Error object,
 * including stack trace information if available.
 */
function formatWarning(error) {
  var formatted = '';
  var errorString = String(error).replace(ERROR_PREFIX_RX, '');
  var stack = error.stack;
  if (stack) {
    formatted = stack.replace(ERROR_PREFIX_RX, '');
  }
  if (formatted.indexOf(errorString) === -1) {
    formatted = errorString + '\n' + formatted;
  }
  return formatted.trim();
}
}).call(this,require('_process'))
},{"_process":229}],123:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.astFromValue = astFromValue;

var _iterall = require('iterall');

var _invariant = require('../jsutils/invariant');

var _invariant2 = _interopRequireDefault(_invariant);

var _isNullish = require('../jsutils/isNullish');

var _isNullish2 = _interopRequireDefault(_isNullish);

var _isInvalid = require('../jsutils/isInvalid');

var _isInvalid2 = _interopRequireDefault(_isInvalid);

var _kinds = require('../language/kinds');

var Kind = _interopRequireWildcard(_kinds);

var _definition = require('../type/definition');

var _scalars = require('../type/scalars');

function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

/**
 * Produces a GraphQL Value AST given a JavaScript value.
 *
 * A GraphQL type must be provided, which will be used to interpret different
 * JavaScript values.
 *
 * | JSON Value    | GraphQL Value        |
 * | ------------- | -------------------- |
 * | Object        | Input Object         |
 * | Array         | List                 |
 * | Boolean       | Boolean              |
 * | String        | String / Enum Value  |
 * | Number        | Int / Float          |
 * | Mixed         | Enum Value           |
 * | null          | NullValue            |
 *
 */
function astFromValue(value, type) {
  // Ensure flow knows that we treat function params as const.
  var _value = value;

  if (type instanceof _definition.GraphQLNonNull) {
    var astValue = astFromValue(_value, type.ofType);
    if (astValue && astValue.kind === Kind.NULL) {
      return null;
    }
    return astValue;
  }

  // only explicit null, not undefined, NaN
  if (_value === null) {
    return { kind: Kind.NULL };
  }

  // undefined, NaN
  if ((0, _isInvalid2.default)(_value)) {
    return null;
  }

  // Convert JavaScript array to GraphQL list. If the GraphQLType is a list, but
  // the value is not an array, convert the value using the list's item type.
  if (type instanceof _definition.GraphQLList) {
    var itemType = type.ofType;
    if ((0, _iterall.isCollection)(_value)) {
      var valuesNodes = [];
      (0, _iterall.forEach)(_value, function (item) {
        var itemNode = astFromValue(item, itemType);
        if (itemNode) {
          valuesNodes.push(itemNode);
        }
      });
      return { kind: Kind.LIST, values: valuesNodes };
    }
    return astFromValue(_value, itemType);
  }

  // Populate the fields of the input object by creating ASTs from each value
  // in the JavaScript object according to the fields in the input type.
  if (type instanceof _definition.GraphQLInputObjectType) {
    if (_value === null || typeof _value !== 'object') {
      return null;
    }
    var fields = type.getFields();
    var fieldNodes = [];
    Object.keys(fields).forEach(function (fieldName) {
      var fieldType = fields[fieldName].type;
      var fieldValue = astFromValue(_value[fieldName], fieldType);
      if (fieldValue) {
        fieldNodes.push({
          kind: Kind.OBJECT_FIELD,
          name: { kind: Kind.NAME, value: fieldName },
          value: fieldValue
        });
      }
    });
    return { kind: Kind.OBJECT, fields: fieldNodes };
  }

  (0, _invariant2.default)(type instanceof _definition.GraphQLScalarType || type instanceof _definition.GraphQLEnumType, 'Must provide Input Type, cannot use: ' + String(type));

  // Since value is an internally represented value, it must be serialized
  // to an externally represented value before converting into an AST.
  var serialized = type.serialize(_value);
  if ((0, _isNullish2.default)(serialized)) {
    return null;
  }

  // Others serialize based on their corresponding JavaScript scalar types.
  if (typeof serialized === 'boolean') {
    return { kind: Kind.BOOLEAN, value: serialized };
  }

  // JavaScript numbers can be Int or Float values.
  if (typeof serialized === 'number') {
    var stringNum = String(serialized);
    return (/^[0-9]+$/.test(stringNum) ? { kind: Kind.INT, value: stringNum } : { kind: Kind.FLOAT, value: stringNum }
    );
  }

  if (typeof serialized === 'string') {
    // Enum types use Enum literals.
    if (type instanceof _definition.GraphQLEnumType) {
      return { kind: Kind.ENUM, value: serialized };
    }

    // ID types can use Int literals.
    if (type === _scalars.GraphQLID && /^[0-9]+$/.test(serialized)) {
      return { kind: Kind.INT, value: serialized };
    }

    // Use JSON stringify, which uses the same string encoding as GraphQL,
    // then remove the quotes.
    return {
      kind: Kind.STRING,
      value: JSON.stringify(serialized).slice(1, -1)
    };
  }

  throw new TypeError('Cannot convert value to AST: ' + String(serialized));
}
/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */
},{"../jsutils/invariant":97,"../jsutils/isInvalid":98,"../jsutils/isNullish":99,"../language/kinds":105,"../type/definition":115,"../type/scalars":119,"iterall":169}],124:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.buildASTSchema = buildASTSchema;
exports.getDeprecationReason = getDeprecationReason;
exports.getDescription = getDescription;
exports.buildSchema = buildSchema;

var _invariant = require('../jsutils/invariant');

var _invariant2 = _interopRequireDefault(_invariant);

var _keyValMap = require('../jsutils/keyValMap');

var _keyValMap2 = _interopRequireDefault(_keyValMap);

var _valueFromAST = require('./valueFromAST');

var _lexer = require('../language/lexer');

var _parser = require('../language/parser');

var _values = require('../execution/values');

var _kinds = require('../language/kinds');

var Kind = _interopRequireWildcard(_kinds);

var _schema = require('../type/schema');

var _scalars = require('../type/scalars');

var _definition = require('../type/definition');

var _directives = require('../type/directives');

var _introspection = require('../type/introspection');

function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

function buildWrappedType(innerType, inputTypeNode) {
  if (inputTypeNode.kind === Kind.LIST_TYPE) {
    return new _definition.GraphQLList(buildWrappedType(innerType, inputTypeNode.type));
  }
  if (inputTypeNode.kind === Kind.NON_NULL_TYPE) {
    var wrappedType = buildWrappedType(innerType, inputTypeNode.type);
    (0, _invariant2.default)(!(wrappedType instanceof _definition.GraphQLNonNull), 'No nesting nonnull.');
    return new _definition.GraphQLNonNull(wrappedType);
  }
  return innerType;
}

function getNamedTypeNode(typeNode) {
  var namedType = typeNode;
  while (namedType.kind === Kind.LIST_TYPE || namedType.kind === Kind.NON_NULL_TYPE) {
    namedType = namedType.type;
  }
  return namedType;
}

/**
 * This takes the ast of a schema document produced by the parse function in
 * src/language/parser.js.
 *
 * If no schema definition is provided, then it will look for types named Query
 * and Mutation.
 *
 * Given that AST it constructs a GraphQLSchema. The resulting schema
 * has no resolve methods, so execution will use default resolvers.
 */
function buildASTSchema(ast) {
  if (!ast || ast.kind !== Kind.DOCUMENT) {
    throw new Error('Must provide a document ast.');
  }

  var schemaDef = void 0;

  var typeDefs = [];
  var nodeMap = Object.create(null);
  var directiveDefs = [];
  for (var i = 0; i < ast.definitions.length; i++) {
    var d = ast.definitions[i];
    switch (d.kind) {
      case Kind.SCHEMA_DEFINITION:
        if (schemaDef) {
          throw new Error('Must provide only one schema definition.');
        }
        schemaDef = d;
        break;
      case Kind.SCALAR_TYPE_DEFINITION:
      case Kind.OBJECT_TYPE_DEFINITION:
      case Kind.INTERFACE_TYPE_DEFINITION:
      case Kind.ENUM_TYPE_DEFINITION:
      case Kind.UNION_TYPE_DEFINITION:
      case Kind.INPUT_OBJECT_TYPE_DEFINITION:
        var typeName = d.name.value;
        if (nodeMap[typeName]) {
          throw new Error('Type "' + typeName + '" was defined more than once.');
        }
        typeDefs.push(d);
        nodeMap[typeName] = d;
        break;
      case Kind.DIRECTIVE_DEFINITION:
        directiveDefs.push(d);
        break;
    }
  }

  var queryTypeName = void 0;
  var mutationTypeName = void 0;
  var subscriptionTypeName = void 0;
  if (schemaDef) {
    schemaDef.operationTypes.forEach(function (operationType) {
      var typeName = operationType.type.name.value;
      if (operationType.operation === 'query') {
        if (queryTypeName) {
          throw new Error('Must provide only one query type in schema.');
        }
        if (!nodeMap[typeName]) {
          throw new Error('Specified query type "' + typeName + '" not found in document.');
        }
        queryTypeName = typeName;
      } else if (operationType.operation === 'mutation') {
        if (mutationTypeName) {
          throw new Error('Must provide only one mutation type in schema.');
        }
        if (!nodeMap[typeName]) {
          throw new Error('Specified mutation type "' + typeName + '" not found in document.');
        }
        mutationTypeName = typeName;
      } else if (operationType.operation === 'subscription') {
        if (subscriptionTypeName) {
          throw new Error('Must provide only one subscription type in schema.');
        }
        if (!nodeMap[typeName]) {
          throw new Error('Specified subscription type "' + typeName + '" not found in document.');
        }
        subscriptionTypeName = typeName;
      }
    });
  } else {
    if (nodeMap.Query) {
      queryTypeName = 'Query';
    }
    if (nodeMap.Mutation) {
      mutationTypeName = 'Mutation';
    }
    if (nodeMap.Subscription) {
      subscriptionTypeName = 'Subscription';
    }
  }

  if (!queryTypeName) {
    throw new Error('Must provide schema definition with query type or a type named Query.');
  }

  var innerTypeMap = {
    String: _scalars.GraphQLString,
    Int: _scalars.GraphQLInt,
    Float: _scalars.GraphQLFloat,
    Boolean: _scalars.GraphQLBoolean,
    ID: _scalars.GraphQLID,
    __Schema: _introspection.__Schema,
    __Directive: _introspection.__Directive,
    __DirectiveLocation: _introspection.__DirectiveLocation,
    __Type: _introspection.__Type,
    __Field: _introspection.__Field,
    __InputValue: _introspection.__InputValue,
    __EnumValue: _introspection.__EnumValue,
    __TypeKind: _introspection.__TypeKind
  };

  var types = typeDefs.map(function (def) {
    return typeDefNamed(def.name.value);
  });

  var directives = directiveDefs.map(getDirective);

  // If specified directives were not explicitly declared, add them.
  if (!directives.some(function (directive) {
    return directive.name === 'skip';
  })) {
    directives.push(_directives.GraphQLSkipDirective);
  }

  if (!directives.some(function (directive) {
    return directive.name === 'include';
  })) {
    directives.push(_directives.GraphQLIncludeDirective);
  }

  if (!directives.some(function (directive) {
    return directive.name === 'deprecated';
  })) {
    directives.push(_directives.GraphQLDeprecatedDirective);
  }

  return new _schema.GraphQLSchema({
    query: getObjectType(nodeMap[queryTypeName]),
    mutation: mutationTypeName ? getObjectType(nodeMap[mutationTypeName]) : null,
    subscription: subscriptionTypeName ? getObjectType(nodeMap[subscriptionTypeName]) : null,
    types: types,
    directives: directives
  });

  function getDirective(directiveNode) {
    return new _directives.GraphQLDirective({
      name: directiveNode.name.value,
      description: getDescription(directiveNode),
      locations: directiveNode.locations.map(function (node) {
        return node.value;
      }),
      args: directiveNode.arguments && makeInputValues(directiveNode.arguments)
    });
  }

  function getObjectType(typeNode) {
    var type = typeDefNamed(typeNode.name.value);
    (0, _invariant2.default)(type instanceof _definition.GraphQLObjectType, 'AST must provide object type.');
    return type;
  }

  function produceType(typeNode) {
    var typeName = getNamedTypeNode(typeNode).name.value;
    var typeDef = typeDefNamed(typeName);
    return buildWrappedType(typeDef, typeNode);
  }

  function produceInputType(typeNode) {
    return (0, _definition.assertInputType)(produceType(typeNode));
  }

  function produceOutputType(typeNode) {
    return (0, _definition.assertOutputType)(produceType(typeNode));
  }

  function produceObjectType(typeNode) {
    var type = produceType(typeNode);
    (0, _invariant2.default)(type instanceof _definition.GraphQLObjectType, 'Expected Object type.');
    return type;
  }

  function produceInterfaceType(typeNode) {
    var type = produceType(typeNode);
    (0, _invariant2.default)(type instanceof _definition.GraphQLInterfaceType, 'Expected Interface type.');
    return type;
  }

  function typeDefNamed(typeName) {
    if (innerTypeMap[typeName]) {
      return innerTypeMap[typeName];
    }

    if (!nodeMap[typeName]) {
      throw new Error('Type "' + typeName + '" not found in document.');
    }

    var innerTypeDef = makeSchemaDef(nodeMap[typeName]);
    if (!innerTypeDef) {
      throw new Error('Nothing constructed for "' + typeName + '".');
    }
    innerTypeMap[typeName] = innerTypeDef;
    return innerTypeDef;
  }

  function makeSchemaDef(def) {
    if (!def) {
      throw new Error('def must be defined');
    }
    switch (def.kind) {
      case Kind.OBJECT_TYPE_DEFINITION:
        return makeTypeDef(def);
      case Kind.INTERFACE_TYPE_DEFINITION:
        return makeInterfaceDef(def);
      case Kind.ENUM_TYPE_DEFINITION:
        return makeEnumDef(def);
      case Kind.UNION_TYPE_DEFINITION:
        return makeUnionDef(def);
      case Kind.SCALAR_TYPE_DEFINITION:
        return makeScalarDef(def);
      case Kind.INPUT_OBJECT_TYPE_DEFINITION:
        return makeInputObjectDef(def);
      default:
        throw new Error('Type kind "' + def.kind + '" not supported.');
    }
  }

  function makeTypeDef(def) {
    var typeName = def.name.value;
    return new _definition.GraphQLObjectType({
      name: typeName,
      description: getDescription(def),
      fields: function fields() {
        return makeFieldDefMap(def);
      },
      interfaces: function interfaces() {
        return makeImplementedInterfaces(def);
      }
    });
  }

  function makeFieldDefMap(def) {
    return (0, _keyValMap2.default)(def.fields, function (field) {
      return field.name.value;
    }, function (field) {
      return {
        type: produceOutputType(field.type),
        description: getDescription(field),
        args: makeInputValues(field.arguments),
        deprecationReason: getDeprecationReason(field)
      };
    });
  }

  function makeImplementedInterfaces(def) {
    return def.interfaces && def.interfaces.map(function (iface) {
      return produceInterfaceType(iface);
    });
  }

  function makeInputValues(values) {
    return (0, _keyValMap2.default)(values, function (value) {
      return value.name.value;
    }, function (value) {
      var type = produceInputType(value.type);
      return {
        type: type,
        description: getDescription(value),
        defaultValue: (0, _valueFromAST.valueFromAST)(value.defaultValue, type)
      };
    });
  }

  function makeInterfaceDef(def) {
    var typeName = def.name.value;
    return new _definition.GraphQLInterfaceType({
      name: typeName,
      description: getDescription(def),
      fields: function fields() {
        return makeFieldDefMap(def);
      },
      resolveType: cannotExecuteSchema
    });
  }

  function makeEnumDef(def) {
    var enumType = new _definition.GraphQLEnumType({
      name: def.name.value,
      description: getDescription(def),
      values: (0, _keyValMap2.default)(def.values, function (enumValue) {
        return enumValue.name.value;
      }, function (enumValue) {
        return {
          description: getDescription(enumValue),
          deprecationReason: getDeprecationReason(enumValue)
        };
      })
    });

    return enumType;
  }

  function makeUnionDef(def) {
    return new _definition.GraphQLUnionType({
      name: def.name.value,
      description: getDescription(def),
      types: def.types.map(function (t) {
        return produceObjectType(t);
      }),
      resolveType: cannotExecuteSchema
    });
  }

  function makeScalarDef(def) {
    return new _definition.GraphQLScalarType({
      name: def.name.value,
      description: getDescription(def),
      serialize: function serialize() {
        return null;
      },
      // Note: validation calls the parse functions to determine if a
      // literal value is correct. Returning null would cause use of custom
      // scalars to always fail validation. Returning false causes them to
      // always pass validation.
      parseValue: function parseValue() {
        return false;
      },
      parseLiteral: function parseLiteral() {
        return false;
      }
    });
  }

  function makeInputObjectDef(def) {
    return new _definition.GraphQLInputObjectType({
      name: def.name.value,
      description: getDescription(def),
      fields: function fields() {
        return makeInputValues(def.fields);
      }
    });
  }
}

/**
 * Given a field or enum value node, returns the string value for the
 * deprecation reason.
 */
function getDeprecationReason(node) {
  var deprecated = (0, _values.getDirectiveValues)(_directives.GraphQLDeprecatedDirective, node);
  return deprecated && deprecated.reason;
}

/**
 * Given an ast node, returns its string description based on a contiguous
 * block full-line of comments preceding it.
 */
function getDescription(node) {
  var loc = node.loc;
  if (!loc) {
    return;
  }
  var comments = [];
  var minSpaces = void 0;
  var token = loc.startToken.prev;
  while (token && token.kind === _lexer.TokenKind.COMMENT && token.next && token.prev && token.line + 1 === token.next.line && token.line !== token.prev.line) {
    var value = String(token.value);
    var spaces = leadingSpaces(value);
    if (minSpaces === undefined || spaces < minSpaces) {
      minSpaces = spaces;
    }
    comments.push(value);
    token = token.prev;
  }
  return comments.reverse().map(function (comment) {
    return comment.slice(minSpaces);
  }).join('\n');
}

/**
 * A helper function to build a GraphQLSchema directly from a source
 * document.
 */
function buildSchema(source) {
  return buildASTSchema((0, _parser.parse)(source));
}

// Count the number of spaces on the starting side of a string.
function leadingSpaces(str) {
  var i = 0;
  for (; i < str.length; i++) {
    if (str[i] !== ' ') {
      break;
    }
  }
  return i;
}

function cannotExecuteSchema() {
  throw new Error('Generated Schema cannot use Interface or Union types for execution.');
}
},{"../execution/values":93,"../jsutils/invariant":97,"../jsutils/keyValMap":101,"../language/kinds":105,"../language/lexer":106,"../language/parser":108,"../type/definition":115,"../type/directives":116,"../type/introspection":118,"../type/scalars":119,"../type/schema":120,"./valueFromAST":139}],125:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.buildClientSchema = buildClientSchema;

var _invariant = require('../jsutils/invariant');

var _invariant2 = _interopRequireDefault(_invariant);

var _keyMap = require('../jsutils/keyMap');

var _keyMap2 = _interopRequireDefault(_keyMap);

var _keyValMap = require('../jsutils/keyValMap');

var _keyValMap2 = _interopRequireDefault(_keyValMap);

var _valueFromAST = require('./valueFromAST');

var _parser = require('../language/parser');

var _schema = require('../type/schema');

var _definition = require('../type/definition');

var _introspection = require('../type/introspection');

var _scalars = require('../type/scalars');

var _directives = require('../type/directives');

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

/**
 * Build a GraphQLSchema for use by client tools.
 *
 * Given the result of a client running the introspection query, creates and
 * returns a GraphQLSchema instance which can be then used with all graphql-js
 * tools, but cannot be used to execute a query, as introspection does not
 * represent the "resolver", "parse" or "serialize" functions or any other
 * server-internal mechanisms.
 */
function buildClientSchema(introspection) {

  // Get the schema from the introspection result.
  var schemaIntrospection = introspection.__schema;

  // Converts the list of types into a keyMap based on the type names.
  var typeIntrospectionMap = (0, _keyMap2.default)(schemaIntrospection.types, function (type) {
    return type.name;
  });

  // A cache to use to store the actual GraphQLType definition objects by name.
  // Initialize to the GraphQL built in scalars. All functions below are inline
  // so that this type def cache is within the scope of the closure.
  var typeDefCache = {
    String: _scalars.GraphQLString,
    Int: _scalars.GraphQLInt,
    Float: _scalars.GraphQLFloat,
    Boolean: _scalars.GraphQLBoolean,
    ID: _scalars.GraphQLID,
    __Schema: _introspection.__Schema,
    __Directive: _introspection.__Directive,
    __DirectiveLocation: _introspection.__DirectiveLocation,
    __Type: _introspection.__Type,
    __Field: _introspection.__Field,
    __InputValue: _introspection.__InputValue,
    __EnumValue: _introspection.__EnumValue,
    __TypeKind: _introspection.__TypeKind
  };

  // Given a type reference in introspection, return the GraphQLType instance.
  // preferring cached instances before building new instances.
  function getType(typeRef) {
    if (typeRef.kind === _introspection.TypeKind.LIST) {
      var itemRef = typeRef.ofType;
      if (!itemRef) {
        throw new Error('Decorated type deeper than introspection query.');
      }
      return new _definition.GraphQLList(getType(itemRef));
    }
    if (typeRef.kind === _introspection.TypeKind.NON_NULL) {
      var nullableRef = typeRef.ofType;
      if (!nullableRef) {
        throw new Error('Decorated type deeper than introspection query.');
      }
      var nullableType = getType(nullableRef);
      (0, _invariant2.default)(!(nullableType instanceof _definition.GraphQLNonNull), 'No nesting nonnull.');
      return new _definition.GraphQLNonNull(nullableType);
    }
    return getNamedType(typeRef.name);
  }

  function getNamedType(typeName) {
    if (typeDefCache[typeName]) {
      return typeDefCache[typeName];
    }
    var typeIntrospection = typeIntrospectionMap[typeName];
    if (!typeIntrospection) {
      throw new Error('Invalid or incomplete schema, unknown type: ' + typeName + '. Ensure ' + 'that a full introspection query is used in order to build a ' + 'client schema.');
    }
    var typeDef = buildType(typeIntrospection);
    typeDefCache[typeName] = typeDef;
    return typeDef;
  }

  function getInputType(typeRef) {
    var type = getType(typeRef);
    (0, _invariant2.default)((0, _definition.isInputType)(type), 'Introspection must provide input type for arguments.');
    return type;
  }

  function getOutputType(typeRef) {
    var type = getType(typeRef);
    (0, _invariant2.default)((0, _definition.isOutputType)(type), 'Introspection must provide output type for fields.');
    return type;
  }

  function getObjectType(typeRef) {
    var type = getType(typeRef);
    (0, _invariant2.default)(type instanceof _definition.GraphQLObjectType, 'Introspection must provide object type for possibleTypes.');
    return type;
  }

  function getInterfaceType(typeRef) {
    var type = getType(typeRef);
    (0, _invariant2.default)(type instanceof _definition.GraphQLInterfaceType, 'Introspection must provide interface type for interfaces.');
    return type;
  }

  // Given a type's introspection result, construct the correct
  // GraphQLType instance.
  function buildType(type) {
    switch (type.kind) {
      case _introspection.TypeKind.SCALAR:
        return buildScalarDef(type);
      case _introspection.TypeKind.OBJECT:
        return buildObjectDef(type);
      case _introspection.TypeKind.INTERFACE:
        return buildInterfaceDef(type);
      case _introspection.TypeKind.UNION:
        return buildUnionDef(type);
      case _introspection.TypeKind.ENUM:
        return buildEnumDef(type);
      case _introspection.TypeKind.INPUT_OBJECT:
        return buildInputObjectDef(type);
      default:
        throw new Error('Invalid or incomplete schema, unknown kind: ' + type.kind + '. Ensure ' + 'that a full introspection query is used in order to build a ' + 'client schema.');
    }
  }

  function buildScalarDef(scalarIntrospection) {
    return new _definition.GraphQLScalarType({
      name: scalarIntrospection.name,
      description: scalarIntrospection.description,
      serialize: function serialize(id) {
        return id;
      },
      // Note: validation calls the parse functions to determine if a
      // literal value is correct. Returning null would cause use of custom
      // scalars to always fail validation. Returning false causes them to
      // always pass validation.
      parseValue: function parseValue() {
        return false;
      },
      parseLiteral: function parseLiteral() {
        return false;
      }
    });
  }

  function buildObjectDef(objectIntrospection) {
    return new _definition.GraphQLObjectType({
      name: objectIntrospection.name,
      description: objectIntrospection.description,
      interfaces: objectIntrospection.interfaces.map(getInterfaceType),
      fields: function fields() {
        return buildFieldDefMap(objectIntrospection);
      }
    });
  }

  function buildInterfaceDef(interfaceIntrospection) {
    return new _definition.GraphQLInterfaceType({
      name: interfaceIntrospection.name,
      description: interfaceIntrospection.description,
      fields: function fields() {
        return buildFieldDefMap(interfaceIntrospection);
      },
      resolveType: cannotExecuteClientSchema
    });
  }

  function buildUnionDef(unionIntrospection) {
    return new _definition.GraphQLUnionType({
      name: unionIntrospection.name,
      description: unionIntrospection.description,
      types: unionIntrospection.possibleTypes.map(getObjectType),
      resolveType: cannotExecuteClientSchema
    });
  }

  function buildEnumDef(enumIntrospection) {
    return new _definition.GraphQLEnumType({
      name: enumIntrospection.name,
      description: enumIntrospection.description,
      values: (0, _keyValMap2.default)(enumIntrospection.enumValues, function (valueIntrospection) {
        return valueIntrospection.name;
      }, function (valueIntrospection) {
        return {
          description: valueIntrospection.description,
          deprecationReason: valueIntrospection.deprecationReason
        };
      })
    });
  }

  function buildInputObjectDef(inputObjectIntrospection) {
    return new _definition.GraphQLInputObjectType({
      name: inputObjectIntrospection.name,
      description: inputObjectIntrospection.description,
      fields: function fields() {
        return buildInputValueDefMap(inputObjectIntrospection.inputFields);
      }
    });
  }

  function buildFieldDefMap(typeIntrospection) {
    return (0, _keyValMap2.default)(typeIntrospection.fields, function (fieldIntrospection) {
      return fieldIntrospection.name;
    }, function (fieldIntrospection) {
      return {
        description: fieldIntrospection.description,
        deprecationReason: fieldIntrospection.deprecationReason,
        type: getOutputType(fieldIntrospection.type),
        args: buildInputValueDefMap(fieldIntrospection.args)
      };
    });
  }

  function buildInputValueDefMap(inputValueIntrospections) {
    return (0, _keyValMap2.default)(inputValueIntrospections, function (inputValue) {
      return inputValue.name;
    }, buildInputValue);
  }

  function buildInputValue(inputValueIntrospection) {
    var type = getInputType(inputValueIntrospection.type);
    var defaultValue = inputValueIntrospection.defaultValue ? (0, _valueFromAST.valueFromAST)((0, _parser.parseValue)(inputValueIntrospection.defaultValue), type) : undefined;
    return {
      name: inputValueIntrospection.name,
      description: inputValueIntrospection.description,
      type: type,
      defaultValue: defaultValue
    };
  }

  function buildDirective(directiveIntrospection) {
    // Support deprecated `on****` fields for building `locations`, as this
    // is used by GraphiQL which may need to support outdated servers.
    var locations = directiveIntrospection.locations ? directiveIntrospection.locations.slice() : [].concat(!directiveIntrospection.onField ? [] : [_directives.DirectiveLocation.FIELD], !directiveIntrospection.onOperation ? [] : [_directives.DirectiveLocation.QUERY, _directives.DirectiveLocation.MUTATION, _directives.DirectiveLocation.SUBSCRIPTION], !directiveIntrospection.onFragment ? [] : [_directives.DirectiveLocation.FRAGMENT_DEFINITION, _directives.DirectiveLocation.FRAGMENT_SPREAD, _directives.DirectiveLocation.INLINE_FRAGMENT]);
    return new _directives.GraphQLDirective({
      name: directiveIntrospection.name,
      description: directiveIntrospection.description,
      locations: locations,
      args: buildInputValueDefMap(directiveIntrospection.args)
    });
  }

  // Iterate through all types, getting the type definition for each, ensuring
  // that any type not directly referenced by a field will get created.
  var types = schemaIntrospection.types.map(function (typeIntrospection) {
    return getNamedType(typeIntrospection.name);
  });

  // Get the root Query, Mutation, and Subscription types.
  var queryType = getObjectType(schemaIntrospection.queryType);

  var mutationType = schemaIntrospection.mutationType ? getObjectType(schemaIntrospection.mutationType) : null;

  var subscriptionType = schemaIntrospection.subscriptionType ? getObjectType(schemaIntrospection.subscriptionType) : null;

  // Get the directives supported by Introspection, assuming empty-set if
  // directives were not queried for.
  var directives = schemaIntrospection.directives ? schemaIntrospection.directives.map(buildDirective) : [];

  // Then produce and return a Schema with these types.
  return new _schema.GraphQLSchema({
    query: queryType,
    mutation: mutationType,
    subscription: subscriptionType,
    types: types,
    directives: directives
  });
}
/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

function cannotExecuteClientSchema() {
  throw new Error('Client Schema cannot use Interface or Union types for execution.');
}
},{"../jsutils/invariant":97,"../jsutils/keyMap":100,"../jsutils/keyValMap":101,"../language/parser":108,"../type/definition":115,"../type/directives":116,"../type/introspection":118,"../type/scalars":119,"../type/schema":120,"./valueFromAST":139}],126:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.concatAST = concatAST;


/**
 * Provided a collection of ASTs, presumably each from different files,
 * concatenate the ASTs together into batched AST, useful for validating many
 * GraphQL source files which together represent one conceptual application.
 */
function concatAST(asts) {
  var batchDefinitions = [];
  for (var i = 0; i < asts.length; i++) {
    var definitions = asts[i].definitions;
    for (var j = 0; j < definitions.length; j++) {
      batchDefinitions.push(definitions[j]);
    }
  }
  return {
    kind: 'Document',
    definitions: batchDefinitions
  };
}
/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */
},{}],127:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.extendSchema = extendSchema;

var _invariant = require('../jsutils/invariant');

var _invariant2 = _interopRequireDefault(_invariant);

var _keyMap = require('../jsutils/keyMap');

var _keyMap2 = _interopRequireDefault(_keyMap);

var _keyValMap = require('../jsutils/keyValMap');

var _keyValMap2 = _interopRequireDefault(_keyValMap);

var _buildASTSchema = require('./buildASTSchema');

var _valueFromAST = require('./valueFromAST');

var _GraphQLError = require('../error/GraphQLError');

var _schema = require('../type/schema');

var _definition = require('../type/definition');

var _directives = require('../type/directives');

var _introspection = require('../type/introspection');

var _scalars = require('../type/scalars');

var _kinds = require('../language/kinds');

var Kind = _interopRequireWildcard(_kinds);

function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

/**
 * Produces a new schema given an existing schema and a document which may
 * contain GraphQL type extensions and definitions. The original schema will
 * remain unaltered.
 *
 * Because a schema represents a graph of references, a schema cannot be
 * extended without effectively making an entire copy. We do not know until it's
 * too late if subgraphs remain unchanged.
 *
 * This algorithm copies the provided schema, applying extensions while
 * producing the copy. The original schema remains unaltered.
 */

/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

function extendSchema(schema, documentAST) {
  (0, _invariant2.default)(schema instanceof _schema.GraphQLSchema, 'Must provide valid GraphQLSchema');

  (0, _invariant2.default)(documentAST && documentAST.kind === Kind.DOCUMENT, 'Must provide valid Document AST');

  // Collect the type definitions and extensions found in the document.
  var typeDefinitionMap = Object.create(null);
  var typeExtensionsMap = Object.create(null);

  // New directives and types are separate because a directives and types can
  // have the same name. For example, a type named "skip".
  var directiveDefinitions = [];

  for (var i = 0; i < documentAST.definitions.length; i++) {
    var def = documentAST.definitions[i];
    switch (def.kind) {
      case Kind.OBJECT_TYPE_DEFINITION:
      case Kind.INTERFACE_TYPE_DEFINITION:
      case Kind.ENUM_TYPE_DEFINITION:
      case Kind.UNION_TYPE_DEFINITION:
      case Kind.SCALAR_TYPE_DEFINITION:
      case Kind.INPUT_OBJECT_TYPE_DEFINITION:
        // Sanity check that none of the defined types conflict with the
        // schema's existing types.
        var typeName = def.name.value;
        if (schema.getType(typeName)) {
          throw new _GraphQLError.GraphQLError('Type "' + typeName + '" already exists in the schema. It cannot also ' + 'be defined in this type definition.', [def]);
        }
        typeDefinitionMap[typeName] = def;
        break;
      case Kind.TYPE_EXTENSION_DEFINITION:
        // Sanity check that this type extension exists within the
        // schema's existing types.
        var extendedTypeName = def.definition.name.value;
        var existingType = schema.getType(extendedTypeName);
        if (!existingType) {
          throw new _GraphQLError.GraphQLError('Cannot extend type "' + extendedTypeName + '" because it does not ' + 'exist in the existing schema.', [def.definition]);
        }
        if (!(existingType instanceof _definition.GraphQLObjectType)) {
          throw new _GraphQLError.GraphQLError('Cannot extend non-object type "' + extendedTypeName + '".', [def.definition]);
        }
        var extensions = typeExtensionsMap[extendedTypeName];
        if (extensions) {
          extensions.push(def);
        } else {
          extensions = [def];
        }
        typeExtensionsMap[extendedTypeName] = extensions;
        break;
      case Kind.DIRECTIVE_DEFINITION:
        var directiveName = def.name.value;
        var existingDirective = schema.getDirective(directiveName);
        if (existingDirective) {
          throw new _GraphQLError.GraphQLError('Directive "' + directiveName + '" already exists in the schema. It ' + 'cannot be redefined.', [def]);
        }
        directiveDefinitions.push(def);
        break;
    }
  }

  // If this document contains no new types, extensions, or directives then
  // return the same unmodified GraphQLSchema instance.
  if (Object.keys(typeExtensionsMap).length === 0 && Object.keys(typeDefinitionMap).length === 0 && directiveDefinitions.length === 0) {
    return schema;
  }

  // A cache to use to store the actual GraphQLType definition objects by name.
  // Initialize to the GraphQL built in scalars and introspection types. All
  // functions below are inline so that this type def cache is within the scope
  // of the closure.
  var typeDefCache = {
    String: _scalars.GraphQLString,
    Int: _scalars.GraphQLInt,
    Float: _scalars.GraphQLFloat,
    Boolean: _scalars.GraphQLBoolean,
    ID: _scalars.GraphQLID,
    __Schema: _introspection.__Schema,
    __Directive: _introspection.__Directive,
    __DirectiveLocation: _introspection.__DirectiveLocation,
    __Type: _introspection.__Type,
    __Field: _introspection.__Field,
    __InputValue: _introspection.__InputValue,
    __EnumValue: _introspection.__EnumValue,
    __TypeKind: _introspection.__TypeKind
  };

  // Get the root Query, Mutation, and Subscription object types.
  var queryType = getTypeFromDef(schema.getQueryType());

  var existingMutationType = schema.getMutationType();
  var mutationType = existingMutationType ? getTypeFromDef(existingMutationType) : null;

  var existingSubscriptionType = schema.getSubscriptionType();
  var subscriptionType = existingSubscriptionType ? getTypeFromDef(existingSubscriptionType) : null;

  // Iterate through all types, getting the type definition for each, ensuring
  // that any type not directly referenced by a field will get created.
  var typeMap = schema.getTypeMap();
  var types = Object.keys(typeMap).map(function (typeName) {
    return getTypeFromDef(typeMap[typeName]);
  });

  // Do the same with new types, appending to the list of defined types.
  Object.keys(typeDefinitionMap).forEach(function (typeName) {
    types.push(getTypeFromAST(typeDefinitionMap[typeName]));
  });

  // Then produce and return a Schema with these types.
  return new _schema.GraphQLSchema({
    query: queryType,
    mutation: mutationType,
    subscription: subscriptionType,
    types: types,
    directives: getMergedDirectives()
  });

  // Below are functions used for producing this schema that have closed over
  // this scope and have access to the schema, cache, and newly defined types.

  function getMergedDirectives() {
    var existingDirectives = schema.getDirectives();
    (0, _invariant2.default)(existingDirectives, 'schema must have default directives');

    var newDirectives = directiveDefinitions.map(function (directiveNode) {
      return getDirective(directiveNode);
    });
    return existingDirectives.concat(newDirectives);
  }

  function getTypeFromDef(typeDef) {
    var type = _getNamedType(typeDef.name);
    (0, _invariant2.default)(type, 'Missing type from schema');
    return type;
  }

  function getTypeFromAST(node) {
    var type = _getNamedType(node.name.value);
    if (!type) {
      throw new _GraphQLError.GraphQLError('Unknown type: "' + node.name.value + '". Ensure that this type exists ' + 'either in the original schema, or is added in a type definition.', [node]);
    }
    return type;
  }

  function getObjectTypeFromAST(node) {
    var type = getTypeFromAST(node);
    (0, _invariant2.default)(type instanceof _definition.GraphQLObjectType, 'Must be Object type.');
    return type;
  }

  function getInterfaceTypeFromAST(node) {
    var type = getTypeFromAST(node);
    (0, _invariant2.default)(type instanceof _definition.GraphQLInterfaceType, 'Must be Interface type.');
    return type;
  }

  function getInputTypeFromAST(node) {
    return (0, _definition.assertInputType)(getTypeFromAST(node));
  }

  function getOutputTypeFromAST(node) {
    return (0, _definition.assertOutputType)(getTypeFromAST(node));
  }

  // Given a name, returns a type from either the existing schema or an
  // added type.
  function _getNamedType(typeName) {
    var cachedTypeDef = typeDefCache[typeName];
    if (cachedTypeDef) {
      return cachedTypeDef;
    }

    var existingType = schema.getType(typeName);
    if (existingType) {
      var typeDef = extendType(existingType);
      typeDefCache[typeName] = typeDef;
      return typeDef;
    }

    var typeNode = typeDefinitionMap[typeName];
    if (typeNode) {
      var _typeDef = buildType(typeNode);
      typeDefCache[typeName] = _typeDef;
      return _typeDef;
    }
  }

  // Given a type's introspection result, construct the correct
  // GraphQLType instance.
  function extendType(type) {
    if (type instanceof _definition.GraphQLObjectType) {
      return extendObjectType(type);
    }
    if (type instanceof _definition.GraphQLInterfaceType) {
      return extendInterfaceType(type);
    }
    if (type instanceof _definition.GraphQLUnionType) {
      return extendUnionType(type);
    }
    return type;
  }

  function extendObjectType(type) {
    return new _definition.GraphQLObjectType({
      name: type.name,
      description: type.description,
      interfaces: function interfaces() {
        return extendImplementedInterfaces(type);
      },
      fields: function fields() {
        return extendFieldMap(type);
      },
      isTypeOf: type.isTypeOf
    });
  }

  function extendInterfaceType(type) {
    return new _definition.GraphQLInterfaceType({
      name: type.name,
      description: type.description,
      fields: function fields() {
        return extendFieldMap(type);
      },
      resolveType: type.resolveType
    });
  }

  function extendUnionType(type) {
    return new _definition.GraphQLUnionType({
      name: type.name,
      description: type.description,
      types: type.getTypes().map(getTypeFromDef),
      resolveType: type.resolveType
    });
  }

  function extendImplementedInterfaces(type) {
    var interfaces = type.getInterfaces().map(getTypeFromDef);

    // If there are any extensions to the interfaces, apply those here.
    var extensions = typeExtensionsMap[type.name];
    if (extensions) {
      extensions.forEach(function (extension) {
        extension.definition.interfaces.forEach(function (namedType) {
          var interfaceName = namedType.name.value;
          if (interfaces.some(function (def) {
            return def.name === interfaceName;
          })) {
            throw new _GraphQLError.GraphQLError('Type "' + type.name + '" already implements "' + interfaceName + '". ' + 'It cannot also be implemented in this type extension.', [namedType]);
          }
          interfaces.push(getInterfaceTypeFromAST(namedType));
        });
      });
    }

    return interfaces;
  }

  function extendFieldMap(type) {
    var newFieldMap = Object.create(null);
    var oldFieldMap = type.getFields();
    Object.keys(oldFieldMap).forEach(function (fieldName) {
      var field = oldFieldMap[fieldName];
      newFieldMap[fieldName] = {
        description: field.description,
        deprecationReason: field.deprecationReason,
        type: extendFieldType(field.type),
        args: (0, _keyMap2.default)(field.args, function (arg) {
          return arg.name;
        }),
        resolve: field.resolve
      };
    });

    // If there are any extensions to the fields, apply those here.
    var extensions = typeExtensionsMap[type.name];
    if (extensions) {
      extensions.forEach(function (extension) {
        extension.definition.fields.forEach(function (field) {
          var fieldName = field.name.value;
          if (oldFieldMap[fieldName]) {
            throw new _GraphQLError.GraphQLError('Field "' + type.name + '.' + fieldName + '" already exists in the ' + 'schema. It cannot also be defined in this type extension.', [field]);
          }
          newFieldMap[fieldName] = {
            description: (0, _buildASTSchema.getDescription)(field),
            type: buildOutputFieldType(field.type),
            args: buildInputValues(field.arguments),
            deprecationReason: (0, _buildASTSchema.getDeprecationReason)(field)
          };
        });
      });
    }

    return newFieldMap;
  }

  function extendFieldType(typeDef) {
    if (typeDef instanceof _definition.GraphQLList) {
      return new _definition.GraphQLList(extendFieldType(typeDef.ofType));
    }
    if (typeDef instanceof _definition.GraphQLNonNull) {
      return new _definition.GraphQLNonNull(extendFieldType(typeDef.ofType));
    }
    return getTypeFromDef(typeDef);
  }

  function buildType(typeNode) {
    switch (typeNode.kind) {
      case Kind.OBJECT_TYPE_DEFINITION:
        return buildObjectType(typeNode);
      case Kind.INTERFACE_TYPE_DEFINITION:
        return buildInterfaceType(typeNode);
      case Kind.UNION_TYPE_DEFINITION:
        return buildUnionType(typeNode);
      case Kind.SCALAR_TYPE_DEFINITION:
        return buildScalarType(typeNode);
      case Kind.ENUM_TYPE_DEFINITION:
        return buildEnumType(typeNode);
      case Kind.INPUT_OBJECT_TYPE_DEFINITION:
        return buildInputObjectType(typeNode);
    }
    throw new TypeError('Unknown type kind ' + typeNode.kind);
  }

  function buildObjectType(typeNode) {
    return new _definition.GraphQLObjectType({
      name: typeNode.name.value,
      description: (0, _buildASTSchema.getDescription)(typeNode),
      interfaces: function interfaces() {
        return buildImplementedInterfaces(typeNode);
      },
      fields: function fields() {
        return buildFieldMap(typeNode);
      }
    });
  }

  function buildInterfaceType(typeNode) {
    return new _definition.GraphQLInterfaceType({
      name: typeNode.name.value,
      description: (0, _buildASTSchema.getDescription)(typeNode),
      fields: function fields() {
        return buildFieldMap(typeNode);
      },
      resolveType: cannotExecuteExtendedSchema
    });
  }

  function buildUnionType(typeNode) {
    return new _definition.GraphQLUnionType({
      name: typeNode.name.value,
      description: (0, _buildASTSchema.getDescription)(typeNode),
      types: typeNode.types.map(getObjectTypeFromAST),
      resolveType: cannotExecuteExtendedSchema
    });
  }

  function buildScalarType(typeNode) {
    return new _definition.GraphQLScalarType({
      name: typeNode.name.value,
      description: (0, _buildASTSchema.getDescription)(typeNode),
      serialize: function serialize(id) {
        return id;
      },
      // Note: validation calls the parse functions to determine if a
      // literal value is correct. Returning null would cause use of custom
      // scalars to always fail validation. Returning false causes them to
      // always pass validation.
      parseValue: function parseValue() {
        return false;
      },
      parseLiteral: function parseLiteral() {
        return false;
      }
    });
  }

  function buildEnumType(typeNode) {
    return new _definition.GraphQLEnumType({
      name: typeNode.name.value,
      description: (0, _buildASTSchema.getDescription)(typeNode),
      values: (0, _keyValMap2.default)(typeNode.values, function (enumValue) {
        return enumValue.name.value;
      }, function (enumValue) {
        return {
          description: (0, _buildASTSchema.getDescription)(enumValue),
          deprecationReason: (0, _buildASTSchema.getDeprecationReason)(enumValue)
        };
      })
    });
  }

  function buildInputObjectType(typeNode) {
    return new _definition.GraphQLInputObjectType({
      name: typeNode.name.value,
      description: (0, _buildASTSchema.getDescription)(typeNode),
      fields: function fields() {
        return buildInputValues(typeNode.fields);
      }
    });
  }

  function getDirective(directiveNode) {
    return new _directives.GraphQLDirective({
      name: directiveNode.name.value,
      locations: directiveNode.locations.map(function (node) {
        return node.value;
      }),
      args: directiveNode.arguments && buildInputValues(directiveNode.arguments)
    });
  }

  function buildImplementedInterfaces(typeNode) {
    return typeNode.interfaces && typeNode.interfaces.map(getInterfaceTypeFromAST);
  }

  function buildFieldMap(typeNode) {
    return (0, _keyValMap2.default)(typeNode.fields, function (field) {
      return field.name.value;
    }, function (field) {
      return {
        type: buildOutputFieldType(field.type),
        description: (0, _buildASTSchema.getDescription)(field),
        args: buildInputValues(field.arguments),
        deprecationReason: (0, _buildASTSchema.getDeprecationReason)(field)
      };
    });
  }

  function buildInputValues(values) {
    return (0, _keyValMap2.default)(values, function (value) {
      return value.name.value;
    }, function (value) {
      var type = buildInputFieldType(value.type);
      return {
        type: type,
        description: (0, _buildASTSchema.getDescription)(value),
        defaultValue: (0, _valueFromAST.valueFromAST)(value.defaultValue, type)
      };
    });
  }

  function buildInputFieldType(typeNode) {
    if (typeNode.kind === Kind.LIST_TYPE) {
      return new _definition.GraphQLList(buildInputFieldType(typeNode.type));
    }
    if (typeNode.kind === Kind.NON_NULL_TYPE) {
      var nullableType = buildInputFieldType(typeNode.type);
      (0, _invariant2.default)(!(nullableType instanceof _definition.GraphQLNonNull), 'Must be nullable');
      return new _definition.GraphQLNonNull(nullableType);
    }
    return getInputTypeFromAST(typeNode);
  }

  function buildOutputFieldType(typeNode) {
    if (typeNode.kind === Kind.LIST_TYPE) {
      return new _definition.GraphQLList(buildOutputFieldType(typeNode.type));
    }
    if (typeNode.kind === Kind.NON_NULL_TYPE) {
      var nullableType = buildOutputFieldType(typeNode.type);
      (0, _invariant2.default)(!(nullableType instanceof _definition.GraphQLNonNull), 'Must be nullable');
      return new _definition.GraphQLNonNull(nullableType);
    }
    return getOutputTypeFromAST(typeNode);
  }
}

function cannotExecuteExtendedSchema() {
  throw new Error('Extended Schema cannot use Interface or Union types for execution.');
}
},{"../error/GraphQLError":86,"../jsutils/invariant":97,"../jsutils/keyMap":100,"../jsutils/keyValMap":101,"../language/kinds":105,"../type/definition":115,"../type/directives":116,"../type/introspection":118,"../type/scalars":119,"../type/schema":120,"./buildASTSchema":124,"./valueFromAST":139}],128:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.DangerousChangeType = exports.BreakingChangeType = undefined;
exports.findBreakingChanges = findBreakingChanges;
exports.findDangerousChanges = findDangerousChanges;
exports.findRemovedTypes = findRemovedTypes;
exports.findTypesThatChangedKind = findTypesThatChangedKind;
exports.findArgChanges = findArgChanges;
exports.findFieldsThatChangedType = findFieldsThatChangedType;
exports.findFieldsThatChangedTypeOnInputObjectTypes = findFieldsThatChangedTypeOnInputObjectTypes;
exports.findTypesRemovedFromUnions = findTypesRemovedFromUnions;
exports.findValuesRemovedFromEnums = findValuesRemovedFromEnums;
exports.findInterfacesRemovedFromObjectTypes = findInterfacesRemovedFromObjectTypes;

var _definition = require('../type/definition');

var _schema = require('../type/schema');

/**
 *  Copyright (c) 2016, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

var BreakingChangeType = exports.BreakingChangeType = {
  FIELD_CHANGED_KIND: 'FIELD_CHANGED_KIND',
  FIELD_REMOVED: 'FIELD_REMOVED',
  TYPE_CHANGED_KIND: 'TYPE_CHANGED_KIND',
  TYPE_REMOVED: 'TYPE_REMOVED',
  TYPE_REMOVED_FROM_UNION: 'TYPE_REMOVED_FROM_UNION',
  VALUE_REMOVED_FROM_ENUM: 'VALUE_REMOVED_FROM_ENUM',
  ARG_REMOVED: 'ARG_REMOVED',
  ARG_CHANGED_KIND: 'ARG_CHANGED_KIND',
  NON_NULL_ARG_ADDED: 'NON_NULL_ARG_ADDED',
  NON_NULL_INPUT_FIELD_ADDED: 'NON_NULL_INPUT_FIELD_ADDED',
  INTERFACE_REMOVED_FROM_OBJECT: 'INTERFACE_REMOVED_FROM_OBJECT'
};

var DangerousChangeType = exports.DangerousChangeType = {
  ARG_DEFAULT_VALUE_CHANGE: 'ARG_DEFAULT_VALUE_CHANGE'
};

/**
 * Given two schemas, returns an Array containing descriptions of all the types
 * of breaking changes covered by the other functions down below.
 */
function findBreakingChanges(oldSchema, newSchema) {
  return [].concat(findRemovedTypes(oldSchema, newSchema), findTypesThatChangedKind(oldSchema, newSchema), findFieldsThatChangedType(oldSchema, newSchema), findTypesRemovedFromUnions(oldSchema, newSchema), findValuesRemovedFromEnums(oldSchema, newSchema), findArgChanges(oldSchema, newSchema).breakingChanges, findInterfacesRemovedFromObjectTypes(oldSchema, newSchema));
}

/**
 * Given two schemas, returns an Array containing descriptions of all the types
 * of potentially dangerous changes covered by the other functions down below.
 */
function findDangerousChanges(oldSchema, newSchema) {
  return [].concat(findArgChanges(oldSchema, newSchema).dangerousChanges);
}

/**
 * Given two schemas, returns an Array containing descriptions of any breaking
 * changes in the newSchema related to removing an entire type.
 */
function findRemovedTypes(oldSchema, newSchema) {
  var oldTypeMap = oldSchema.getTypeMap();
  var newTypeMap = newSchema.getTypeMap();

  var breakingChanges = [];
  Object.keys(oldTypeMap).forEach(function (typeName) {
    if (!newTypeMap[typeName]) {
      breakingChanges.push({
        type: BreakingChangeType.TYPE_REMOVED,
        description: typeName + ' was removed.'
      });
    }
  });
  return breakingChanges;
}

/**
 * Given two schemas, returns an Array containing descriptions of any breaking
 * changes in the newSchema related to changing the type of a type.
 */
function findTypesThatChangedKind(oldSchema, newSchema) {
  var oldTypeMap = oldSchema.getTypeMap();
  var newTypeMap = newSchema.getTypeMap();

  var breakingChanges = [];
  Object.keys(oldTypeMap).forEach(function (typeName) {
    if (!newTypeMap[typeName]) {
      return;
    }
    var oldType = oldTypeMap[typeName];
    var newType = newTypeMap[typeName];
    if (!(oldType instanceof newType.constructor)) {
      breakingChanges.push({
        type: BreakingChangeType.TYPE_CHANGED_KIND,
        description: typeName + ' changed from ' + (typeKindName(oldType) + ' to ' + typeKindName(newType) + '.')
      });
    }
  });
  return breakingChanges;
}

/**
 * Given two schemas, returns an Array containing descriptions of any
 * breaking or dangerous changes in the newSchema related to arguments
 * (such as removal or change of type of an argument, or a change in an
 * argument's default value).
 */
function findArgChanges(oldSchema, newSchema) {
  var oldTypeMap = oldSchema.getTypeMap();
  var newTypeMap = newSchema.getTypeMap();

  var breakingChanges = [];
  var dangerousChanges = [];

  Object.keys(oldTypeMap).forEach(function (typeName) {
    var oldType = oldTypeMap[typeName];
    var newType = newTypeMap[typeName];
    if (!(oldType instanceof _definition.GraphQLObjectType || oldType instanceof _definition.GraphQLInterfaceType) || !(newType instanceof oldType.constructor)) {
      return;
    }

    var oldTypeFields = oldType.getFields();
    var newTypeFields = newType.getFields();

    Object.keys(oldTypeFields).forEach(function (fieldName) {
      if (!newTypeFields[fieldName]) {
        return;
      }

      oldTypeFields[fieldName].args.forEach(function (oldArgDef) {
        var newArgs = newTypeFields[fieldName].args;
        var newArgDef = newArgs.find(function (arg) {
          return arg.name === oldArgDef.name;
        });

        // Arg not present
        if (!newArgDef) {
          breakingChanges.push({
            type: BreakingChangeType.ARG_REMOVED,
            description: oldType.name + '.' + fieldName + ' arg ' + (oldArgDef.name + ' was removed')
          });
        } else {
          var isSafe = isChangeSafeForInputObjectFieldOrFieldArg(oldArgDef.type, newArgDef.type);
          if (!isSafe) {
            breakingChanges.push({
              type: BreakingChangeType.ARG_CHANGED_KIND,
              description: oldType.name + '.' + fieldName + ' arg ' + (oldArgDef.name + ' has changed type from ') + (oldArgDef.type.toString() + ' to ' + newArgDef.type.toString())
            });
          } else if (oldArgDef.defaultValue !== undefined && oldArgDef.defaultValue !== newArgDef.defaultValue) {
            dangerousChanges.push({
              type: DangerousChangeType.ARG_DEFAULT_VALUE_CHANGE,
              description: oldType.name + '.' + fieldName + ' arg ' + (oldArgDef.name + ' has changed defaultValue')
            });
          }
        }
      });
      // Check if a non-null arg was added to the field
      newTypeFields[fieldName].args.forEach(function (newArgDef) {
        var oldArgs = oldTypeFields[fieldName].args;
        var oldArgDef = oldArgs.find(function (arg) {
          return arg.name === newArgDef.name;
        });
        if (!oldArgDef && newArgDef.type instanceof _definition.GraphQLNonNull) {
          breakingChanges.push({
            type: BreakingChangeType.NON_NULL_ARG_ADDED,
            description: 'A non-null arg ' + newArgDef.name + ' on ' + (newType.name + '.' + fieldName + ' was added')
          });
        }
      });
    });
  });

  return {
    breakingChanges: breakingChanges,
    dangerousChanges: dangerousChanges
  };
}

function typeKindName(type) {
  if (type instanceof _definition.GraphQLScalarType) {
    return 'a Scalar type';
  }
  if (type instanceof _definition.GraphQLObjectType) {
    return 'an Object type';
  }
  if (type instanceof _definition.GraphQLInterfaceType) {
    return 'an Interface type';
  }
  if (type instanceof _definition.GraphQLUnionType) {
    return 'a Union type';
  }
  if (type instanceof _definition.GraphQLEnumType) {
    return 'an Enum type';
  }
  if (type instanceof _definition.GraphQLInputObjectType) {
    return 'an Input type';
  }
  throw new TypeError('Unknown type ' + type.constructor.name);
}

/**
 * Given two schemas, returns an Array containing descriptions of any breaking
 * changes in the newSchema related to the fields on a type. This includes if
 * a field has been removed from a type, if a field has changed type, or if
 * a non-null field is added to an input type.
 */
function findFieldsThatChangedType(oldSchema, newSchema) {
  return [].concat(findFieldsThatChangedTypeOnObjectOrInterfaceTypes(oldSchema, newSchema), findFieldsThatChangedTypeOnInputObjectTypes(oldSchema, newSchema));
}

function findFieldsThatChangedTypeOnObjectOrInterfaceTypes(oldSchema, newSchema) {
  var oldTypeMap = oldSchema.getTypeMap();
  var newTypeMap = newSchema.getTypeMap();

  var breakingFieldChanges = [];
  Object.keys(oldTypeMap).forEach(function (typeName) {
    var oldType = oldTypeMap[typeName];
    var newType = newTypeMap[typeName];
    if (!(oldType instanceof _definition.GraphQLObjectType || oldType instanceof _definition.GraphQLInterfaceType) || !(newType instanceof oldType.constructor)) {
      return;
    }

    var oldTypeFieldsDef = oldType.getFields();
    var newTypeFieldsDef = newType.getFields();
    Object.keys(oldTypeFieldsDef).forEach(function (fieldName) {
      // Check if the field is missing on the type in the new schema.
      if (!(fieldName in newTypeFieldsDef)) {
        breakingFieldChanges.push({
          type: BreakingChangeType.FIELD_REMOVED,
          description: typeName + '.' + fieldName + ' was removed.'
        });
      } else {
        var oldFieldType = oldTypeFieldsDef[fieldName].type;
        var newFieldType = newTypeFieldsDef[fieldName].type;
        var isSafe = isChangeSafeForObjectOrInterfaceField(oldFieldType, newFieldType);
        if (!isSafe) {
          var oldFieldTypeString = (0, _definition.isNamedType)(oldFieldType) ? oldFieldType.name : oldFieldType.toString();
          var newFieldTypeString = (0, _definition.isNamedType)(newFieldType) ? newFieldType.name : newFieldType.toString();
          breakingFieldChanges.push({
            type: BreakingChangeType.FIELD_CHANGED_KIND,
            description: typeName + '.' + fieldName + ' changed type from ' + (oldFieldTypeString + ' to ' + newFieldTypeString + '.')
          });
        }
      }
    });
  });
  return breakingFieldChanges;
}

function findFieldsThatChangedTypeOnInputObjectTypes(oldSchema, newSchema) {
  var oldTypeMap = oldSchema.getTypeMap();
  var newTypeMap = newSchema.getTypeMap();

  var breakingFieldChanges = [];
  Object.keys(oldTypeMap).forEach(function (typeName) {
    var oldType = oldTypeMap[typeName];
    var newType = newTypeMap[typeName];
    if (!(oldType instanceof _definition.GraphQLInputObjectType) || !(newType instanceof _definition.GraphQLInputObjectType)) {
      return;
    }

    var oldTypeFieldsDef = oldType.getFields();
    var newTypeFieldsDef = newType.getFields();
    Object.keys(oldTypeFieldsDef).forEach(function (fieldName) {
      // Check if the field is missing on the type in the new schema.
      if (!(fieldName in newTypeFieldsDef)) {
        breakingFieldChanges.push({
          type: BreakingChangeType.FIELD_REMOVED,
          description: typeName + '.' + fieldName + ' was removed.'
        });
      } else {
        var oldFieldType = oldTypeFieldsDef[fieldName].type;
        var newFieldType = newTypeFieldsDef[fieldName].type;

        var isSafe = isChangeSafeForInputObjectFieldOrFieldArg(oldFieldType, newFieldType);
        if (!isSafe) {
          var oldFieldTypeString = (0, _definition.isNamedType)(oldFieldType) ? oldFieldType.name : oldFieldType.toString();
          var newFieldTypeString = (0, _definition.isNamedType)(newFieldType) ? newFieldType.name : newFieldType.toString();
          breakingFieldChanges.push({
            type: BreakingChangeType.FIELD_CHANGED_KIND,
            description: typeName + '.' + fieldName + ' changed type from ' + (oldFieldTypeString + ' to ' + newFieldTypeString + '.')
          });
        }
      }
    });
    // Check if a non-null field was added to the input object type
    Object.keys(newTypeFieldsDef).forEach(function (fieldName) {
      if (!(fieldName in oldTypeFieldsDef) && newTypeFieldsDef[fieldName].type instanceof _definition.GraphQLNonNull) {
        breakingFieldChanges.push({
          type: BreakingChangeType.NON_NULL_INPUT_FIELD_ADDED,
          description: 'A non-null field ' + fieldName + ' on ' + ('input type ' + newType.name + ' was added.')
        });
      }
    });
  });
  return breakingFieldChanges;
}

function isChangeSafeForObjectOrInterfaceField(oldType, newType) {
  if ((0, _definition.isNamedType)(oldType)) {
    return (
      // if they're both named types, see if their names are equivalent
      (0, _definition.isNamedType)(newType) && oldType.name === newType.name ||
      // moving from nullable to non-null of the same underlying type is safe
      newType instanceof _definition.GraphQLNonNull && isChangeSafeForObjectOrInterfaceField(oldType, newType.ofType)
    );
  } else if (oldType instanceof _definition.GraphQLList) {
    return (
      // if they're both lists, make sure the underlying types are compatible
      newType instanceof _definition.GraphQLList && isChangeSafeForObjectOrInterfaceField(oldType.ofType, newType.ofType) ||
      // moving from nullable to non-null of the same underlying type is safe
      newType instanceof _definition.GraphQLNonNull && isChangeSafeForObjectOrInterfaceField(oldType, newType.ofType)
    );
  } else if (oldType instanceof _definition.GraphQLNonNull) {
    // if they're both non-null, make sure the underlying types are compatible
    return newType instanceof _definition.GraphQLNonNull && isChangeSafeForObjectOrInterfaceField(oldType.ofType, newType.ofType);
  }
  return false;
}

function isChangeSafeForInputObjectFieldOrFieldArg(oldType, newType) {
  if ((0, _definition.isNamedType)(oldType)) {
    // if they're both named types, see if their names are equivalent
    return (0, _definition.isNamedType)(newType) && oldType.name === newType.name;
  } else if (oldType instanceof _definition.GraphQLList) {
    // if they're both lists, make sure the underlying types are compatible
    return newType instanceof _definition.GraphQLList && isChangeSafeForInputObjectFieldOrFieldArg(oldType.ofType, newType.ofType);
  } else if (oldType instanceof _definition.GraphQLNonNull) {
    return (
      // if they're both non-null, make sure the underlying types are
      // compatible
      newType instanceof _definition.GraphQLNonNull && isChangeSafeForInputObjectFieldOrFieldArg(oldType.ofType, newType.ofType) ||
      // moving from non-null to nullable of the same underlying type is safe
      !(newType instanceof _definition.GraphQLNonNull) && isChangeSafeForInputObjectFieldOrFieldArg(oldType.ofType, newType)
    );
  }
  return false;
}

/**
 * Given two schemas, returns an Array containing descriptions of any breaking
 * changes in the newSchema related to removing types from a union type.
 */
function findTypesRemovedFromUnions(oldSchema, newSchema) {
  var oldTypeMap = oldSchema.getTypeMap();
  var newTypeMap = newSchema.getTypeMap();

  var typesRemovedFromUnion = [];
  Object.keys(oldTypeMap).forEach(function (typeName) {
    var oldType = oldTypeMap[typeName];
    var newType = newTypeMap[typeName];
    if (!(oldType instanceof _definition.GraphQLUnionType) || !(newType instanceof _definition.GraphQLUnionType)) {
      return;
    }
    var typeNamesInNewUnion = Object.create(null);
    newType.getTypes().forEach(function (type) {
      typeNamesInNewUnion[type.name] = true;
    });
    oldType.getTypes().forEach(function (type) {
      if (!typeNamesInNewUnion[type.name]) {
        typesRemovedFromUnion.push({
          type: BreakingChangeType.TYPE_REMOVED_FROM_UNION,
          description: type.name + ' was removed from union type ' + typeName + '.'
        });
      }
    });
  });
  return typesRemovedFromUnion;
}

/**
 * Given two schemas, returns an Array containing descriptions of any breaking
 * changes in the newSchema related to removing values from an enum type.
 */
function findValuesRemovedFromEnums(oldSchema, newSchema) {
  var oldTypeMap = oldSchema.getTypeMap();
  var newTypeMap = newSchema.getTypeMap();

  var valuesRemovedFromEnums = [];
  Object.keys(oldTypeMap).forEach(function (typeName) {
    var oldType = oldTypeMap[typeName];
    var newType = newTypeMap[typeName];
    if (!(oldType instanceof _definition.GraphQLEnumType) || !(newType instanceof _definition.GraphQLEnumType)) {
      return;
    }
    var valuesInNewEnum = Object.create(null);
    newType.getValues().forEach(function (value) {
      valuesInNewEnum[value.name] = true;
    });
    oldType.getValues().forEach(function (value) {
      if (!valuesInNewEnum[value.name]) {
        valuesRemovedFromEnums.push({
          type: BreakingChangeType.VALUE_REMOVED_FROM_ENUM,
          description: value.name + ' was removed from enum type ' + typeName + '.'
        });
      }
    });
  });
  return valuesRemovedFromEnums;
}

function findInterfacesRemovedFromObjectTypes(oldSchema, newSchema) {
  var oldTypeMap = oldSchema.getTypeMap();
  var newTypeMap = newSchema.getTypeMap();
  var breakingChanges = [];

  Object.keys(oldTypeMap).forEach(function (typeName) {
    var oldType = oldTypeMap[typeName];
    var newType = newTypeMap[typeName];
    if (!(oldType instanceof _definition.GraphQLObjectType) || !(newType instanceof _definition.GraphQLObjectType)) {
      return;
    }

    var oldInterfaces = oldType.getInterfaces();
    var newInterfaces = newType.getInterfaces();
    oldInterfaces.forEach(function (oldInterface) {
      if (!newInterfaces.some(function (int) {
        return int.name === oldInterface.name;
      })) {
        breakingChanges.push({
          type: BreakingChangeType.INTERFACE_REMOVED_FROM_OBJECT,
          description: typeName + ' no longer implements interface ' + (oldInterface.name + '.')
        });
      }
    });
  });
  return breakingChanges;
}
},{"../type/definition":115,"../type/schema":120}],129:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.findDeprecatedUsages = findDeprecatedUsages;

var _GraphQLError = require('../error/GraphQLError');

var _visitor = require('../language/visitor');

var _definition = require('../type/definition');

var _schema = require('../type/schema');

var _TypeInfo = require('./TypeInfo');

/**
 * A validation rule which reports deprecated usages.
 *
 * Returns a list of GraphQLError instances describing each deprecated use.
 */
function findDeprecatedUsages(schema, ast) {
  var errors = [];
  var typeInfo = new _TypeInfo.TypeInfo(schema);

  (0, _visitor.visit)(ast, (0, _visitor.visitWithTypeInfo)(typeInfo, {
    Field: function Field(node) {
      var fieldDef = typeInfo.getFieldDef();
      if (fieldDef && fieldDef.isDeprecated) {
        var parentType = typeInfo.getParentType();
        if (parentType) {
          var reason = fieldDef.deprecationReason;
          errors.push(new _GraphQLError.GraphQLError('The field ' + parentType.name + '.' + fieldDef.name + ' is deprecated.' + (reason ? ' ' + reason : ''), [node]));
        }
      }
    },
    EnumValue: function EnumValue(node) {
      var enumVal = typeInfo.getEnumValue();
      if (enumVal && enumVal.isDeprecated) {
        var type = (0, _definition.getNamedType)(typeInfo.getInputType());
        if (type) {
          var reason = enumVal.deprecationReason;
          errors.push(new _GraphQLError.GraphQLError('The enum value ' + type.name + '.' + enumVal.name + ' is deprecated.' + (reason ? ' ' + reason : ''), [node]));
        }
      }
    }
  }));

  return errors;
}
/**
 *  Copyright (c) Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */
},{"../error/GraphQLError":86,"../language/visitor":111,"../type/definition":115,"../type/schema":120,"./TypeInfo":121}],130:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.getOperationAST = getOperationAST;

var _kinds = require('../language/kinds');

/**
 * Returns an operation AST given a document AST and optionally an operation
 * name. If a name is not provided, an operation is only returned if only one is
 * provided in the document.
 */
function getOperationAST(documentAST, operationName) {
  var operation = null;
  for (var i = 0; i < documentAST.definitions.length; i++) {
    var definition = documentAST.definitions[i];
    if (definition.kind === _kinds.OPERATION_DEFINITION) {
      if (!operationName) {
        // If no operation name was provided, only return an Operation if there
        // is one defined in the document. Upon encountering the second, return
        // null.
        if (operation) {
          return null;
        }
        operation = definition;
      } else if (definition.name && definition.name.value === operationName) {
        return definition;
      }
    }
  }
  return operation;
}
/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */
},{"../language/kinds":105}],131:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _introspectionQuery = require('./introspectionQuery');

Object.defineProperty(exports, 'introspectionQuery', {
  enumerable: true,
  get: function get() {
    return _introspectionQuery.introspectionQuery;
  }
});

var _getOperationAST = require('./getOperationAST');

Object.defineProperty(exports, 'getOperationAST', {
  enumerable: true,
  get: function get() {
    return _getOperationAST.getOperationAST;
  }
});

var _buildClientSchema = require('./buildClientSchema');

Object.defineProperty(exports, 'buildClientSchema', {
  enumerable: true,
  get: function get() {
    return _buildClientSchema.buildClientSchema;
  }
});

var _buildASTSchema = require('./buildASTSchema');

Object.defineProperty(exports, 'buildASTSchema', {
  enumerable: true,
  get: function get() {
    return _buildASTSchema.buildASTSchema;
  }
});
Object.defineProperty(exports, 'buildSchema', {
  enumerable: true,
  get: function get() {
    return _buildASTSchema.buildSchema;
  }
});

var _extendSchema = require('./extendSchema');

Object.defineProperty(exports, 'extendSchema', {
  enumerable: true,
  get: function get() {
    return _extendSchema.extendSchema;
  }
});

var _schemaPrinter = require('./schemaPrinter');

Object.defineProperty(exports, 'printSchema', {
  enumerable: true,
  get: function get() {
    return _schemaPrinter.printSchema;
  }
});
Object.defineProperty(exports, 'printType', {
  enumerable: true,
  get: function get() {
    return _schemaPrinter.printType;
  }
});
Object.defineProperty(exports, 'printIntrospectionSchema', {
  enumerable: true,
  get: function get() {
    return _schemaPrinter.printIntrospectionSchema;
  }
});

var _typeFromAST = require('./typeFromAST');

Object.defineProperty(exports, 'typeFromAST', {
  enumerable: true,
  get: function get() {
    return _typeFromAST.typeFromAST;
  }
});

var _valueFromAST = require('./valueFromAST');

Object.defineProperty(exports, 'valueFromAST', {
  enumerable: true,
  get: function get() {
    return _valueFromAST.valueFromAST;
  }
});

var _astFromValue = require('./astFromValue');

Object.defineProperty(exports, 'astFromValue', {
  enumerable: true,
  get: function get() {
    return _astFromValue.astFromValue;
  }
});

var _TypeInfo = require('./TypeInfo');

Object.defineProperty(exports, 'TypeInfo', {
  enumerable: true,
  get: function get() {
    return _TypeInfo.TypeInfo;
  }
});

var _isValidJSValue = require('./isValidJSValue');

Object.defineProperty(exports, 'isValidJSValue', {
  enumerable: true,
  get: function get() {
    return _isValidJSValue.isValidJSValue;
  }
});

var _isValidLiteralValue = require('./isValidLiteralValue');

Object.defineProperty(exports, 'isValidLiteralValue', {
  enumerable: true,
  get: function get() {
    return _isValidLiteralValue.isValidLiteralValue;
  }
});

var _concatAST = require('./concatAST');

Object.defineProperty(exports, 'concatAST', {
  enumerable: true,
  get: function get() {
    return _concatAST.concatAST;
  }
});

var _separateOperations = require('./separateOperations');

Object.defineProperty(exports, 'separateOperations', {
  enumerable: true,
  get: function get() {
    return _separateOperations.separateOperations;
  }
});

var _typeComparators = require('./typeComparators');

Object.defineProperty(exports, 'isEqualType', {
  enumerable: true,
  get: function get() {
    return _typeComparators.isEqualType;
  }
});
Object.defineProperty(exports, 'isTypeSubTypeOf', {
  enumerable: true,
  get: function get() {
    return _typeComparators.isTypeSubTypeOf;
  }
});
Object.defineProperty(exports, 'doTypesOverlap', {
  enumerable: true,
  get: function get() {
    return _typeComparators.doTypesOverlap;
  }
});

var _assertValidName = require('./assertValidName');

Object.defineProperty(exports, 'assertValidName', {
  enumerable: true,
  get: function get() {
    return _assertValidName.assertValidName;
  }
});

var _findBreakingChanges = require('./findBreakingChanges');

Object.defineProperty(exports, 'BreakingChangeType', {
  enumerable: true,
  get: function get() {
    return _findBreakingChanges.BreakingChangeType;
  }
});
Object.defineProperty(exports, 'DangerousChangeType', {
  enumerable: true,
  get: function get() {
    return _findBreakingChanges.DangerousChangeType;
  }
});
Object.defineProperty(exports, 'findBreakingChanges', {
  enumerable: true,
  get: function get() {
    return _findBreakingChanges.findBreakingChanges;
  }
});

var _findDeprecatedUsages = require('./findDeprecatedUsages');

Object.defineProperty(exports, 'findDeprecatedUsages', {
  enumerable: true,
  get: function get() {
    return _findDeprecatedUsages.findDeprecatedUsages;
  }
});
},{"./TypeInfo":121,"./assertValidName":122,"./astFromValue":123,"./buildASTSchema":124,"./buildClientSchema":125,"./concatAST":126,"./extendSchema":127,"./findBreakingChanges":128,"./findDeprecatedUsages":129,"./getOperationAST":130,"./introspectionQuery":132,"./isValidJSValue":133,"./isValidLiteralValue":134,"./schemaPrinter":135,"./separateOperations":136,"./typeComparators":137,"./typeFromAST":138,"./valueFromAST":139}],132:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
var introspectionQuery = exports.introspectionQuery = '\n  query IntrospectionQuery {\n    __schema {\n      queryType { name }\n      mutationType { name }\n      subscriptionType { name }\n      types {\n        ...FullType\n      }\n      directives {\n        name\n        description\n        locations\n        args {\n          ...InputValue\n        }\n      }\n    }\n  }\n\n  fragment FullType on __Type {\n    kind\n    name\n    description\n    fields(includeDeprecated: true) {\n      name\n      description\n      args {\n        ...InputValue\n      }\n      type {\n        ...TypeRef\n      }\n      isDeprecated\n      deprecationReason\n    }\n    inputFields {\n      ...InputValue\n    }\n    interfaces {\n      ...TypeRef\n    }\n    enumValues(includeDeprecated: true) {\n      name\n      description\n      isDeprecated\n      deprecationReason\n    }\n    possibleTypes {\n      ...TypeRef\n    }\n  }\n\n  fragment InputValue on __InputValue {\n    name\n    description\n    type { ...TypeRef }\n    defaultValue\n  }\n\n  fragment TypeRef on __Type {\n    kind\n    name\n    ofType {\n      kind\n      name\n      ofType {\n        kind\n        name\n        ofType {\n          kind\n          name\n          ofType {\n            kind\n            name\n            ofType {\n              kind\n              name\n              ofType {\n                kind\n                name\n                ofType {\n                  kind\n                  name\n                }\n              }\n            }\n          }\n        }\n      }\n    }\n  }\n';
/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */
},{}],133:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.isValidJSValue = isValidJSValue;

var _iterall = require('iterall');

var _invariant = require('../jsutils/invariant');

var _invariant2 = _interopRequireDefault(_invariant);

var _isNullish = require('../jsutils/isNullish');

var _isNullish2 = _interopRequireDefault(_isNullish);

var _definition = require('../type/definition');

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

/**
 * Given a JavaScript value and a GraphQL type, determine if the value will be
 * accepted for that type. This is primarily useful for validating the
 * runtime values of query variables.
 */

/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

function isValidJSValue(value, type) {
  // A value must be provided if the type is non-null.
  if (type instanceof _definition.GraphQLNonNull) {
    if ((0, _isNullish2.default)(value)) {
      return ['Expected "' + String(type) + '", found null.'];
    }
    return isValidJSValue(value, type.ofType);
  }

  if ((0, _isNullish2.default)(value)) {
    return [];
  }

  // Lists accept a non-list value as a list of one.
  if (type instanceof _definition.GraphQLList) {
    var itemType = type.ofType;
    if ((0, _iterall.isCollection)(value)) {
      var errors = [];
      (0, _iterall.forEach)(value, function (item, index) {
        errors.push.apply(errors, isValidJSValue(item, itemType).map(function (error) {
          return 'In element #' + index + ': ' + error;
        }));
      });
      return errors;
    }
    return isValidJSValue(value, itemType);
  }

  // Input objects check each defined field.
  if (type instanceof _definition.GraphQLInputObjectType) {
    if (typeof value !== 'object' || value === null) {
      return ['Expected "' + type.name + '", found not an object.'];
    }
    var fields = type.getFields();

    var _errors = [];

    // Ensure every provided field is defined.
    Object.keys(value).forEach(function (providedField) {
      if (!fields[providedField]) {
        _errors.push('In field "' + providedField + '": Unknown field.');
      }
    });

    // Ensure every defined field is valid.
    Object.keys(fields).forEach(function (fieldName) {
      var newErrors = isValidJSValue(value[fieldName], fields[fieldName].type);
      _errors.push.apply(_errors, newErrors.map(function (error) {
        return 'In field "' + fieldName + '": ' + error;
      }));
    });

    return _errors;
  }

  (0, _invariant2.default)(type instanceof _definition.GraphQLScalarType || type instanceof _definition.GraphQLEnumType, 'Must be input type');

  // Scalar/Enum input checks to ensure the type can parse the value to
  // a non-null value.
  try {
    var parseResult = type.parseValue(value);
    if ((0, _isNullish2.default)(parseResult) && !type.isValidValue(value)) {
      return ['Expected type "' + type.name + '", found ' + JSON.stringify(value) + '.'];
    }
  } catch (error) {
    return ['Expected type "' + type.name + '", found ' + JSON.stringify(value) + ': ' + error.message];
  }

  return [];
}
},{"../jsutils/invariant":97,"../jsutils/isNullish":99,"../type/definition":115,"iterall":169}],134:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.isValidLiteralValue = isValidLiteralValue;

var _printer = require('../language/printer');

var _kinds = require('../language/kinds');

var Kind = _interopRequireWildcard(_kinds);

var _definition = require('../type/definition');

var _invariant = require('../jsutils/invariant');

var _invariant2 = _interopRequireDefault(_invariant);

var _keyMap = require('../jsutils/keyMap');

var _keyMap2 = _interopRequireDefault(_keyMap);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }

/**
 * Utility for validators which determines if a value literal node is valid
 * given an input type.
 *
 * Note that this only validates literal values, variables are assumed to
 * provide values of the correct type.
 */
function isValidLiteralValue(type, valueNode) {
  // A value must be provided if the type is non-null.
  if (type instanceof _definition.GraphQLNonNull) {
    if (!valueNode || valueNode.kind === Kind.NULL) {
      return ['Expected "' + String(type) + '", found null.'];
    }
    return isValidLiteralValue(type.ofType, valueNode);
  }

  if (!valueNode || valueNode.kind === Kind.NULL) {
    return [];
  }

  // This function only tests literals, and assumes variables will provide
  // values of the correct type.
  if (valueNode.kind === Kind.VARIABLE) {
    return [];
  }

  // Lists accept a non-list value as a list of one.
  if (type instanceof _definition.GraphQLList) {
    var itemType = type.ofType;
    if (valueNode.kind === Kind.LIST) {
      return valueNode.values.reduce(function (acc, item, index) {
        var errors = isValidLiteralValue(itemType, item);
        return acc.concat(errors.map(function (error) {
          return 'In element #' + index + ': ' + error;
        }));
      }, []);
    }
    return isValidLiteralValue(itemType, valueNode);
  }

  // Input objects check each defined field and look for undefined fields.
  if (type instanceof _definition.GraphQLInputObjectType) {
    if (valueNode.kind !== Kind.OBJECT) {
      return ['Expected "' + type.name + '", found not an object.'];
    }
    var fields = type.getFields();

    var errors = [];

    // Ensure every provided field is defined.
    var fieldNodes = valueNode.fields;
    fieldNodes.forEach(function (providedFieldNode) {
      if (!fields[providedFieldNode.name.value]) {
        errors.push('In field "' + providedFieldNode.name.value + '": Unknown field.');
      }
    });

    // Ensure every defined field is valid.
    var fieldNodeMap = (0, _keyMap2.default)(fieldNodes, function (fieldNode) {
      return fieldNode.name.value;
    });
    Object.keys(fields).forEach(function (fieldName) {
      var result = isValidLiteralValue(fields[fieldName].type, fieldNodeMap[fieldName] && fieldNodeMap[fieldName].value);
      errors.push.apply(errors, result.map(function (error) {
        return 'In field "' + fieldName + '": ' + error;
      }));
    });

    return errors;
  }

  (0, _invariant2.default)(type instanceof _definition.GraphQLScalarType || type instanceof _definition.GraphQLEnumType, 'Must be input type');

  // Scalars determine if a literal values is valid.
  if (!type.isValidLiteral(valueNode)) {
    return ['Expected type "' + type.name + '", found ' + (0, _printer.print)(valueNode) + '.'];
  }

  return [];
}
/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */
},{"../jsutils/invariant":97,"../jsutils/keyMap":100,"../language/kinds":105,"../language/printer":109,"../type/definition":115}],135:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.printSchema = printSchema;
exports.printIntrospectionSchema = printIntrospectionSchema;
exports.printType = printType;

var _invariant = require('../jsutils/invariant');

var _invariant2 = _interopRequireDefault(_invariant);

var _isNullish = require('../jsutils/isNullish');

var _isNullish2 = _interopRequireDefault(_isNullish);

var _isInvalid = require('../jsutils/isInvalid');

var _isInvalid2 = _interopRequireDefault(_isInvalid);

var _astFromValue = require('../utilities/astFromValue');

var _printer = require('../language/printer');

var _definition = require('../type/definition');

var _scalars = require('../type/scalars');

var _directives = require('../type/directives');

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

function printSchema(schema) {
  return printFilteredSchema(schema, function (n) {
    return !isSpecDirective(n);
  }, isDefinedType);
}

function printIntrospectionSchema(schema) {
  return printFilteredSchema(schema, isSpecDirective, isIntrospectionType);
}

function isSpecDirective(directiveName) {
  return directiveName === 'skip' || directiveName === 'include' || directiveName === 'deprecated';
}

function isDefinedType(typename) {
  return !isIntrospectionType(typename) && !isBuiltInScalar(typename);
}

function isIntrospectionType(typename) {
  return typename.indexOf('__') === 0;
}

function isBuiltInScalar(typename) {
  return typename === 'String' || typename === 'Boolean' || typename === 'Int' || typename === 'Float' || typename === 'ID';
}

function printFilteredSchema(schema, directiveFilter, typeFilter) {
  var directives = schema.getDirectives().filter(function (directive) {
    return directiveFilter(directive.name);
  });
  var typeMap = schema.getTypeMap();
  var types = Object.keys(typeMap).filter(typeFilter).sort(function (name1, name2) {
    return name1.localeCompare(name2);
  }).map(function (typeName) {
    return typeMap[typeName];
  });

  return [printSchemaDefinition(schema)].concat(directives.map(printDirective), types.map(printType)).filter(Boolean).join('\n\n') + '\n';
}

function printSchemaDefinition(schema) {
  if (isSchemaOfCommonNames(schema)) {
    return;
  }

  var operationTypes = [];

  var queryType = schema.getQueryType();
  if (queryType) {
    operationTypes.push('  query: ' + queryType.name);
  }

  var mutationType = schema.getMutationType();
  if (mutationType) {
    operationTypes.push('  mutation: ' + mutationType.name);
  }

  var subscriptionType = schema.getSubscriptionType();
  if (subscriptionType) {
    operationTypes.push('  subscription: ' + subscriptionType.name);
  }

  return 'schema {\n' + operationTypes.join('\n') + '\n}';
}

/**
 * GraphQL schema define root types for each type of operation. These types are
 * the same as any other type and can be named in any manner, however there is
 * a common naming convention:
 *
 *   schema {
 *     query: Query
 *     mutation: Mutation
 *   }
 *
 * When using this naming convention, the schema description can be omitted.
 */
function isSchemaOfCommonNames(schema) {
  var queryType = schema.getQueryType();
  if (queryType && queryType.name !== 'Query') {
    return false;
  }

  var mutationType = schema.getMutationType();
  if (mutationType && mutationType.name !== 'Mutation') {
    return false;
  }

  var subscriptionType = schema.getSubscriptionType();
  if (subscriptionType && subscriptionType.name !== 'Subscription') {
    return false;
  }

  return true;
}

function printType(type) {
  if (type instanceof _definition.GraphQLScalarType) {
    return printScalar(type);
  } else if (type instanceof _definition.GraphQLObjectType) {
    return printObject(type);
  } else if (type instanceof _definition.GraphQLInterfaceType) {
    return printInterface(type);
  } else if (type instanceof _definition.GraphQLUnionType) {
    return printUnion(type);
  } else if (type instanceof _definition.GraphQLEnumType) {
    return printEnum(type);
  }
  (0, _invariant2.default)(type instanceof _definition.GraphQLInputObjectType);
  return printInputObject(type);
}

function printScalar(type) {
  return printDescription(type) + ('scalar ' + type.name);
}

function printObject(type) {
  var interfaces = type.getInterfaces();
  var implementedInterfaces = interfaces.length ? ' implements ' + interfaces.map(function (i) {
    return i.name;
  }).join(', ') : '';
  return printDescription(type) + ('type ' + type.name + implementedInterfaces + ' {\n') + printFields(type) + '\n' + '}';
}

function printInterface(type) {
  return printDescription(type) + ('interface ' + type.name + ' {\n') + printFields(type) + '\n' + '}';
}

function printUnion(type) {
  return printDescription(type) + ('union ' + type.name + ' = ' + type.getTypes().join(' | '));
}

function printEnum(type) {
  return printDescription(type) + ('enum ' + type.name + ' {\n') + printEnumValues(type.getValues()) + '\n' + '}';
}

function printEnumValues(values) {
  return values.map(function (value, i) {
    return printDescription(value, '  ', !i) + '  ' + value.name + printDeprecated(value);
  }).join('\n');
}

function printInputObject(type) {
  var fieldMap = type.getFields();
  var fields = Object.keys(fieldMap).map(function (fieldName) {
    return fieldMap[fieldName];
  });
  return printDescription(type) + ('input ' + type.name + ' {\n') + fields.map(function (f, i) {
    return printDescription(f, '  ', !i) + '  ' + printInputValue(f);
  }).join('\n') + '\n' + '}';
}

function printFields(type) {
  var fieldMap = type.getFields();
  var fields = Object.keys(fieldMap).map(function (fieldName) {
    return fieldMap[fieldName];
  });
  return fields.map(function (f, i) {
    return printDescription(f, '  ', !i) + '  ' + f.name + printArgs(f.args, '  ') + ': ' + String(f.type) + printDeprecated(f);
  }).join('\n');
}

function printArgs(args) {
  var indentation = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : '';

  if (args.length === 0) {
    return '';
  }

  // If every arg does not have a description, print them on one line.
  if (args.every(function (arg) {
    return !arg.description;
  })) {
    return '(' + args.map(printInputValue).join(', ') + ')';
  }

  return '(\n' + args.map(function (arg, i) {
    return printDescription(arg, '  ' + indentation, !i) + '  ' + indentation + printInputValue(arg);
  }).join('\n') + '\n' + indentation + ')';
}

function printInputValue(arg) {
  var argDecl = arg.name + ': ' + String(arg.type);
  if (!(0, _isInvalid2.default)(arg.defaultValue)) {
    argDecl += ' = ' + (0, _printer.print)((0, _astFromValue.astFromValue)(arg.defaultValue, arg.type));
  }
  return argDecl;
}

function printDirective(directive) {
  return printDescription(directive) + 'directive @' + directive.name + printArgs(directive.args) + ' on ' + directive.locations.join(' | ');
}

function printDeprecated(fieldOrEnumVal) {
  var reason = fieldOrEnumVal.deprecationReason;
  if ((0, _isNullish2.default)(reason)) {
    return '';
  }
  if (reason === '' || reason === _directives.DEFAULT_DEPRECATION_REASON) {
    return ' @deprecated';
  }
  return ' @deprecated(reason: ' + (0, _printer.print)((0, _astFromValue.astFromValue)(reason, _scalars.GraphQLString)) + ')';
}

function printDescription(def) {
  var indentation = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : '';
  var firstInBlock = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : true;

  if (!def.description) {
    return '';
  }
  var lines = def.description.split('\n');
  var description = indentation && !firstInBlock ? '\n' : '';
  for (var i = 0; i < lines.length; i++) {
    if (lines[i] === '') {
      description += indentation + '#\n';
    } else {
      // For > 120 character long lines, cut at space boundaries into sublines
      // of ~80 chars.
      var sublines = breakLine(lines[i], 120 - indentation.length);
      for (var j = 0; j < sublines.length; j++) {
        description += indentation + '# ' + sublines[j] + '\n';
      }
    }
  }
  return description;
}

function breakLine(line, len) {
  if (line.length < len + 5) {
    return [line];
  }
  var parts = line.split(new RegExp('((?: |^).{15,' + (len - 40) + '}(?= |$))'));
  if (parts.length < 4) {
    return [line];
  }
  var sublines = [parts[0] + parts[1] + parts[2]];
  for (var i = 3; i < parts.length; i += 2) {
    sublines.push(parts[i].slice(1) + parts[i + 1]);
  }
  return sublines;
}
},{"../jsutils/invariant":97,"../jsutils/isInvalid":98,"../jsutils/isNullish":99,"../language/printer":109,"../type/definition":115,"../type/directives":116,"../type/scalars":119,"../utilities/astFromValue":123}],136:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.separateOperations = separateOperations;

var _visitor = require('../language/visitor');

/**
 * separateOperations accepts a single AST document which may contain many
 * operations and fragments and returns a collection of AST documents each of
 * which contains a single operation as well the fragment definitions it
 * refers to.
 */
function separateOperations(documentAST) {

  var operations = [];
  var fragments = Object.create(null);
  var positions = new Map();
  var depGraph = Object.create(null);
  var fromName = void 0;
  var idx = 0;

  // Populate metadata and build a dependency graph.
  (0, _visitor.visit)(documentAST, {
    OperationDefinition: function OperationDefinition(node) {
      fromName = opName(node);
      operations.push(node);
      positions.set(node, idx++);
    },
    FragmentDefinition: function FragmentDefinition(node) {
      fromName = node.name.value;
      fragments[fromName] = node;
      positions.set(node, idx++);
    },
    FragmentSpread: function FragmentSpread(node) {
      var toName = node.name.value;
      (depGraph[fromName] || (depGraph[fromName] = Object.create(null)))[toName] = true;
    }
  });

  // For each operation, produce a new synthesized AST which includes only what
  // is necessary for completing that operation.
  var separatedDocumentASTs = Object.create(null);
  operations.forEach(function (operation) {
    var operationName = opName(operation);
    var dependencies = Object.create(null);
    collectTransitiveDependencies(dependencies, depGraph, operationName);

    // The list of definition nodes to be included for this operation, sorted
    // to retain the same order as the original document.
    var definitions = [operation];
    Object.keys(dependencies).forEach(function (name) {
      definitions.push(fragments[name]);
    });
    definitions.sort(function (n1, n2) {
      return (positions.get(n1) || 0) - (positions.get(n2) || 0);
    });

    separatedDocumentASTs[operationName] = {
      kind: 'Document',
      definitions: definitions
    };
  });

  return separatedDocumentASTs;
}
/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

// Provides the empty string for anonymous operations.
function opName(operation) {
  return operation.name ? operation.name.value : '';
}

// From a dependency graph, collects a list of transitive dependencies by
// recursing through a dependency graph.
function collectTransitiveDependencies(collected, depGraph, fromName) {
  var immediateDeps = depGraph[fromName];
  if (immediateDeps) {
    Object.keys(immediateDeps).forEach(function (toName) {
      if (!collected[toName]) {
        collected[toName] = true;
        collectTransitiveDependencies(collected, depGraph, toName);
      }
    });
  }
}
},{"../language/visitor":111}],137:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.isEqualType = isEqualType;
exports.isTypeSubTypeOf = isTypeSubTypeOf;
exports.doTypesOverlap = doTypesOverlap;

var _definition = require('../type/definition');

/**
 * Provided two types, return true if the types are equal (invariant).
 */
function isEqualType(typeA, typeB) {
  // Equivalent types are equal.
  if (typeA === typeB) {
    return true;
  }

  // If either type is non-null, the other must also be non-null.
  if (typeA instanceof _definition.GraphQLNonNull && typeB instanceof _definition.GraphQLNonNull) {
    return isEqualType(typeA.ofType, typeB.ofType);
  }

  // If either type is a list, the other must also be a list.
  if (typeA instanceof _definition.GraphQLList && typeB instanceof _definition.GraphQLList) {
    return isEqualType(typeA.ofType, typeB.ofType);
  }

  // Otherwise the types are not equal.
  return false;
}

/**
 * Provided a type and a super type, return true if the first type is either
 * equal or a subset of the second super type (covariant).
 */

/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

function isTypeSubTypeOf(schema, maybeSubType, superType) {
  // Equivalent type is a valid subtype
  if (maybeSubType === superType) {
    return true;
  }

  // If superType is non-null, maybeSubType must also be non-null.
  if (superType instanceof _definition.GraphQLNonNull) {
    if (maybeSubType instanceof _definition.GraphQLNonNull) {
      return isTypeSubTypeOf(schema, maybeSubType.ofType, superType.ofType);
    }
    return false;
  } else if (maybeSubType instanceof _definition.GraphQLNonNull) {
    // If superType is nullable, maybeSubType may be non-null or nullable.
    return isTypeSubTypeOf(schema, maybeSubType.ofType, superType);
  }

  // If superType type is a list, maybeSubType type must also be a list.
  if (superType instanceof _definition.GraphQLList) {
    if (maybeSubType instanceof _definition.GraphQLList) {
      return isTypeSubTypeOf(schema, maybeSubType.ofType, superType.ofType);
    }
    return false;
  } else if (maybeSubType instanceof _definition.GraphQLList) {
    // If superType is not a list, maybeSubType must also be not a list.
    return false;
  }

  // If superType type is an abstract type, maybeSubType type may be a currently
  // possible object type.
  if ((0, _definition.isAbstractType)(superType) && maybeSubType instanceof _definition.GraphQLObjectType && schema.isPossibleType(superType, maybeSubType)) {
    return true;
  }

  // Otherwise, the child type is not a valid subtype of the parent type.
  return false;
}

/**
 * Provided two composite types, determine if they "overlap". Two composite
 * types overlap when the Sets of possible concrete types for each intersect.
 *
 * This is often used to determine if a fragment of a given type could possibly
 * be visited in a context of another type.
 *
 * This function is commutative.
 */
function doTypesOverlap(schema, typeA, typeB) {
  // So flow is aware this is constant
  var _typeB = typeB;

  // Equivalent types overlap
  if (typeA === _typeB) {
    return true;
  }

  if ((0, _definition.isAbstractType)(typeA)) {
    if ((0, _definition.isAbstractType)(_typeB)) {
      // If both types are abstract, then determine if there is any intersection
      // between possible concrete types of each.
      return schema.getPossibleTypes(typeA).some(function (type) {
        return schema.isPossibleType(_typeB, type);
      });
    }
    // Determine if the latter type is a possible concrete type of the former.
    return schema.isPossibleType(typeA, _typeB);
  }

  if ((0, _definition.isAbstractType)(_typeB)) {
    // Determine if the former type is a possible concrete type of the latter.
    return schema.isPossibleType(_typeB, typeA);
  }

  // Otherwise the types do not overlap.
  return false;
}
},{"../type/definition":115}],138:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.typeFromAST = undefined;

var _invariant = require('../jsutils/invariant');

var _invariant2 = _interopRequireDefault(_invariant);

var _kinds = require('../language/kinds');

var Kind = _interopRequireWildcard(_kinds);

var _definition = require('../type/definition');

function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

/**
 * Given a Schema and an AST node describing a type, return a GraphQLType
 * definition which applies to that type. For example, if provided the parsed
 * AST node for `[User]`, a GraphQLList instance will be returned, containing
 * the type called "User" found in the schema. If a type called "User" is not
 * found in the schema, then undefined will be returned.
 */
/* eslint-disable no-redeclare */
function typeFromASTImpl(schema, typeNode) {
  /* eslint-enable no-redeclare */
  var innerType = void 0;
  if (typeNode.kind === Kind.LIST_TYPE) {
    innerType = typeFromAST(schema, typeNode.type);
    return innerType && new _definition.GraphQLList(innerType);
  }
  if (typeNode.kind === Kind.NON_NULL_TYPE) {
    innerType = typeFromAST(schema, typeNode.type);
    return innerType && new _definition.GraphQLNonNull(innerType);
  }
  (0, _invariant2.default)(typeNode.kind === Kind.NAMED_TYPE, 'Must be a named type.');
  return schema.getType(typeNode.name.value);
}
// This will export typeFromAST with the correct type, but currently exposes
// ~26 errors: https://gist.github.com/4a29403a99a8186fcb15064d69c5f3ae
// export var typeFromAST: typeof typeFromASTType = typeFromASTImpl;

/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

var typeFromAST = exports.typeFromAST = typeFromASTImpl;
},{"../jsutils/invariant":97,"../language/kinds":105,"../type/definition":115}],139:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.valueFromAST = valueFromAST;

var _keyMap = require('../jsutils/keyMap');

var _keyMap2 = _interopRequireDefault(_keyMap);

var _invariant = require('../jsutils/invariant');

var _invariant2 = _interopRequireDefault(_invariant);

var _isNullish = require('../jsutils/isNullish');

var _isNullish2 = _interopRequireDefault(_isNullish);

var _isInvalid = require('../jsutils/isInvalid');

var _isInvalid2 = _interopRequireDefault(_isInvalid);

var _kinds = require('../language/kinds');

var Kind = _interopRequireWildcard(_kinds);

var _definition = require('../type/definition');

function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

/**
 * Produces a JavaScript value given a GraphQL Value AST.
 *
 * A GraphQL type must be provided, which will be used to interpret different
 * GraphQL Value literals.
 *
 * Returns `undefined` when the value could not be validly coerced according to
 * the provided type.
 *
 * | GraphQL Value        | JSON Value    |
 * | -------------------- | ------------- |
 * | Input Object         | Object        |
 * | List                 | Array         |
 * | Boolean              | Boolean       |
 * | String               | String        |
 * | Int / Float          | Number        |
 * | Enum Value           | Mixed         |
 * | NullValue            | null          |
 *
 */

/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

function valueFromAST(valueNode, type, variables) {
  if (!valueNode) {
    // When there is no node, then there is also no value.
    // Importantly, this is different from returning the value null.
    return;
  }

  if (type instanceof _definition.GraphQLNonNull) {
    if (valueNode.kind === Kind.NULL) {
      return; // Invalid: intentionally return no value.
    }
    return valueFromAST(valueNode, type.ofType, variables);
  }

  if (valueNode.kind === Kind.NULL) {
    // This is explicitly returning the value null.
    return null;
  }

  if (valueNode.kind === Kind.VARIABLE) {
    var variableName = valueNode.name.value;
    if (!variables || (0, _isInvalid2.default)(variables[variableName])) {
      // No valid return value.
      return;
    }
    // Note: we're not doing any checking that this variable is correct. We're
    // assuming that this query has been validated and the variable usage here
    // is of the correct type.
    return variables[variableName];
  }

  if (type instanceof _definition.GraphQLList) {
    var itemType = type.ofType;
    if (valueNode.kind === Kind.LIST) {
      var coercedValues = [];
      var itemNodes = valueNode.values;
      for (var i = 0; i < itemNodes.length; i++) {
        if (isMissingVariable(itemNodes[i], variables)) {
          // If an array contains a missing variable, it is either coerced to
          // null or if the item type is non-null, it considered invalid.
          if (itemType instanceof _definition.GraphQLNonNull) {
            return; // Invalid: intentionally return no value.
          }
          coercedValues.push(null);
        } else {
          var itemValue = valueFromAST(itemNodes[i], itemType, variables);
          if ((0, _isInvalid2.default)(itemValue)) {
            return; // Invalid: intentionally return no value.
          }
          coercedValues.push(itemValue);
        }
      }
      return coercedValues;
    }
    var coercedValue = valueFromAST(valueNode, itemType, variables);
    if ((0, _isInvalid2.default)(coercedValue)) {
      return; // Invalid: intentionally return no value.
    }
    return [coercedValue];
  }

  if (type instanceof _definition.GraphQLInputObjectType) {
    if (valueNode.kind !== Kind.OBJECT) {
      return; // Invalid: intentionally return no value.
    }
    var coercedObj = Object.create(null);
    var fields = type.getFields();
    var fieldNodes = (0, _keyMap2.default)(valueNode.fields, function (field) {
      return field.name.value;
    });
    var fieldNames = Object.keys(fields);
    for (var _i = 0; _i < fieldNames.length; _i++) {
      var fieldName = fieldNames[_i];
      var field = fields[fieldName];
      var fieldNode = fieldNodes[fieldName];
      if (!fieldNode || isMissingVariable(fieldNode.value, variables)) {
        if (!(0, _isInvalid2.default)(field.defaultValue)) {
          coercedObj[fieldName] = field.defaultValue;
        } else if (field.type instanceof _definition.GraphQLNonNull) {
          return; // Invalid: intentionally return no value.
        }
        continue;
      }
      var fieldValue = valueFromAST(fieldNode.value, field.type, variables);
      if ((0, _isInvalid2.default)(fieldValue)) {
        return; // Invalid: intentionally return no value.
      }
      coercedObj[fieldName] = fieldValue;
    }
    return coercedObj;
  }

  (0, _invariant2.default)(type instanceof _definition.GraphQLScalarType || type instanceof _definition.GraphQLEnumType, 'Must be input type');

  var parsed = type.parseLiteral(valueNode);
  if ((0, _isNullish2.default)(parsed) && !type.isValidLiteral(valueNode)) {
    // Invalid values represent a failure to parse correctly, in which case
    // no value is returned.
    return;
  }

  return parsed;
}

// Returns true if the provided valueNode is a variable which is not defined
// in the set of variables.
function isMissingVariable(valueNode, variables) {
  return valueNode.kind === Kind.VARIABLE && (!variables || (0, _isInvalid2.default)(variables[valueNode.name.value]));
}
},{"../jsutils/invariant":97,"../jsutils/isInvalid":98,"../jsutils/isNullish":99,"../jsutils/keyMap":100,"../language/kinds":105,"../type/definition":115}],140:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _validate = require('./validate');

Object.defineProperty(exports, 'validate', {
  enumerable: true,
  get: function get() {
    return _validate.validate;
  }
});
Object.defineProperty(exports, 'ValidationContext', {
  enumerable: true,
  get: function get() {
    return _validate.ValidationContext;
  }
});

var _specifiedRules = require('./specifiedRules');

Object.defineProperty(exports, 'specifiedRules', {
  enumerable: true,
  get: function get() {
    return _specifiedRules.specifiedRules;
  }
});

var _ArgumentsOfCorrectType = require('./rules/ArgumentsOfCorrectType');

Object.defineProperty(exports, 'ArgumentsOfCorrectTypeRule', {
  enumerable: true,
  get: function get() {
    return _ArgumentsOfCorrectType.ArgumentsOfCorrectType;
  }
});

var _DefaultValuesOfCorrectType = require('./rules/DefaultValuesOfCorrectType');

Object.defineProperty(exports, 'DefaultValuesOfCorrectTypeRule', {
  enumerable: true,
  get: function get() {
    return _DefaultValuesOfCorrectType.DefaultValuesOfCorrectType;
  }
});

var _FieldsOnCorrectType = require('./rules/FieldsOnCorrectType');

Object.defineProperty(exports, 'FieldsOnCorrectTypeRule', {
  enumerable: true,
  get: function get() {
    return _FieldsOnCorrectType.FieldsOnCorrectType;
  }
});

var _FragmentsOnCompositeTypes = require('./rules/FragmentsOnCompositeTypes');

Object.defineProperty(exports, 'FragmentsOnCompositeTypesRule', {
  enumerable: true,
  get: function get() {
    return _FragmentsOnCompositeTypes.FragmentsOnCompositeTypes;
  }
});

var _KnownArgumentNames = require('./rules/KnownArgumentNames');

Object.defineProperty(exports, 'KnownArgumentNamesRule', {
  enumerable: true,
  get: function get() {
    return _KnownArgumentNames.KnownArgumentNames;
  }
});

var _KnownDirectives = require('./rules/KnownDirectives');

Object.defineProperty(exports, 'KnownDirectivesRule', {
  enumerable: true,
  get: function get() {
    return _KnownDirectives.KnownDirectives;
  }
});

var _KnownFragmentNames = require('./rules/KnownFragmentNames');

Object.defineProperty(exports, 'KnownFragmentNamesRule', {
  enumerable: true,
  get: function get() {
    return _KnownFragmentNames.KnownFragmentNames;
  }
});

var _KnownTypeNames = require('./rules/KnownTypeNames');

Object.defineProperty(exports, 'KnownTypeNamesRule', {
  enumerable: true,
  get: function get() {
    return _KnownTypeNames.KnownTypeNames;
  }
});

var _LoneAnonymousOperation = require('./rules/LoneAnonymousOperation');

Object.defineProperty(exports, 'LoneAnonymousOperationRule', {
  enumerable: true,
  get: function get() {
    return _LoneAnonymousOperation.LoneAnonymousOperation;
  }
});

var _NoFragmentCycles = require('./rules/NoFragmentCycles');

Object.defineProperty(exports, 'NoFragmentCyclesRule', {
  enumerable: true,
  get: function get() {
    return _NoFragmentCycles.NoFragmentCycles;
  }
});

var _NoUndefinedVariables = require('./rules/NoUndefinedVariables');

Object.defineProperty(exports, 'NoUndefinedVariablesRule', {
  enumerable: true,
  get: function get() {
    return _NoUndefinedVariables.NoUndefinedVariables;
  }
});

var _NoUnusedFragments = require('./rules/NoUnusedFragments');

Object.defineProperty(exports, 'NoUnusedFragmentsRule', {
  enumerable: true,
  get: function get() {
    return _NoUnusedFragments.NoUnusedFragments;
  }
});

var _NoUnusedVariables = require('./rules/NoUnusedVariables');

Object.defineProperty(exports, 'NoUnusedVariablesRule', {
  enumerable: true,
  get: function get() {
    return _NoUnusedVariables.NoUnusedVariables;
  }
});

var _OverlappingFieldsCanBeMerged = require('./rules/OverlappingFieldsCanBeMerged');

Object.defineProperty(exports, 'OverlappingFieldsCanBeMergedRule', {
  enumerable: true,
  get: function get() {
    return _OverlappingFieldsCanBeMerged.OverlappingFieldsCanBeMerged;
  }
});

var _PossibleFragmentSpreads = require('./rules/PossibleFragmentSpreads');

Object.defineProperty(exports, 'PossibleFragmentSpreadsRule', {
  enumerable: true,
  get: function get() {
    return _PossibleFragmentSpreads.PossibleFragmentSpreads;
  }
});

var _ProvidedNonNullArguments = require('./rules/ProvidedNonNullArguments');

Object.defineProperty(exports, 'ProvidedNonNullArgumentsRule', {
  enumerable: true,
  get: function get() {
    return _ProvidedNonNullArguments.ProvidedNonNullArguments;
  }
});

var _ScalarLeafs = require('./rules/ScalarLeafs');

Object.defineProperty(exports, 'ScalarLeafsRule', {
  enumerable: true,
  get: function get() {
    return _ScalarLeafs.ScalarLeafs;
  }
});

var _SingleFieldSubscriptions = require('./rules/SingleFieldSubscriptions');

Object.defineProperty(exports, 'SingleFieldSubscriptionsRule', {
  enumerable: true,
  get: function get() {
    return _SingleFieldSubscriptions.SingleFieldSubscriptions;
  }
});

var _UniqueArgumentNames = require('./rules/UniqueArgumentNames');

Object.defineProperty(exports, 'UniqueArgumentNamesRule', {
  enumerable: true,
  get: function get() {
    return _UniqueArgumentNames.UniqueArgumentNames;
  }
});

var _UniqueDirectivesPerLocation = require('./rules/UniqueDirectivesPerLocation');

Object.defineProperty(exports, 'UniqueDirectivesPerLocationRule', {
  enumerable: true,
  get: function get() {
    return _UniqueDirectivesPerLocation.UniqueDirectivesPerLocation;
  }
});

var _UniqueFragmentNames = require('./rules/UniqueFragmentNames');

Object.defineProperty(exports, 'UniqueFragmentNamesRule', {
  enumerable: true,
  get: function get() {
    return _UniqueFragmentNames.UniqueFragmentNames;
  }
});

var _UniqueInputFieldNames = require('./rules/UniqueInputFieldNames');

Object.defineProperty(exports, 'UniqueInputFieldNamesRule', {
  enumerable: true,
  get: function get() {
    return _UniqueInputFieldNames.UniqueInputFieldNames;
  }
});

var _UniqueOperationNames = require('./rules/UniqueOperationNames');

Object.defineProperty(exports, 'UniqueOperationNamesRule', {
  enumerable: true,
  get: function get() {
    return _UniqueOperationNames.UniqueOperationNames;
  }
});

var _UniqueVariableNames = require('./rules/UniqueVariableNames');

Object.defineProperty(exports, 'UniqueVariableNamesRule', {
  enumerable: true,
  get: function get() {
    return _UniqueVariableNames.UniqueVariableNames;
  }
});

var _VariablesAreInputTypes = require('./rules/VariablesAreInputTypes');

Object.defineProperty(exports, 'VariablesAreInputTypesRule', {
  enumerable: true,
  get: function get() {
    return _VariablesAreInputTypes.VariablesAreInputTypes;
  }
});

var _VariablesInAllowedPosition = require('./rules/VariablesInAllowedPosition');

Object.defineProperty(exports, 'VariablesInAllowedPositionRule', {
  enumerable: true,
  get: function get() {
    return _VariablesInAllowedPosition.VariablesInAllowedPosition;
  }
});
},{"./rules/ArgumentsOfCorrectType":141,"./rules/DefaultValuesOfCorrectType":142,"./rules/FieldsOnCorrectType":143,"./rules/FragmentsOnCompositeTypes":144,"./rules/KnownArgumentNames":145,"./rules/KnownDirectives":146,"./rules/KnownFragmentNames":147,"./rules/KnownTypeNames":148,"./rules/LoneAnonymousOperation":149,"./rules/NoFragmentCycles":150,"./rules/NoUndefinedVariables":151,"./rules/NoUnusedFragments":152,"./rules/NoUnusedVariables":153,"./rules/OverlappingFieldsCanBeMerged":154,"./rules/PossibleFragmentSpreads":155,"./rules/ProvidedNonNullArguments":156,"./rules/ScalarLeafs":157,"./rules/SingleFieldSubscriptions":158,"./rules/UniqueArgumentNames":159,"./rules/UniqueDirectivesPerLocation":160,"./rules/UniqueFragmentNames":161,"./rules/UniqueInputFieldNames":162,"./rules/UniqueOperationNames":163,"./rules/UniqueVariableNames":164,"./rules/VariablesAreInputTypes":165,"./rules/VariablesInAllowedPosition":166,"./specifiedRules":167,"./validate":168}],141:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.badValueMessage = badValueMessage;
exports.ArgumentsOfCorrectType = ArgumentsOfCorrectType;

var _error = require('../../error');

var _printer = require('../../language/printer');

var _isValidLiteralValue = require('../../utilities/isValidLiteralValue');

/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

function badValueMessage(argName, type, value, verboseErrors) {
  var message = verboseErrors ? '\n' + verboseErrors.join('\n') : '';
  return 'Argument "' + argName + '" has invalid value ' + value + '.' + message;
}

/**
 * Argument values of correct type
 *
 * A GraphQL document is only valid if all field argument literal values are
 * of the type expected by their position.
 */
function ArgumentsOfCorrectType(context) {
  return {
    Argument: function Argument(node) {
      var argDef = context.getArgument();
      if (argDef) {
        var errors = (0, _isValidLiteralValue.isValidLiteralValue)(argDef.type, node.value);
        if (errors && errors.length > 0) {
          context.reportError(new _error.GraphQLError(badValueMessage(node.name.value, argDef.type, (0, _printer.print)(node.value), errors), [node.value]));
        }
      }
      return false;
    }
  };
}
},{"../../error":88,"../../language/printer":109,"../../utilities/isValidLiteralValue":134}],142:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.defaultForNonNullArgMessage = defaultForNonNullArgMessage;
exports.badValueForDefaultArgMessage = badValueForDefaultArgMessage;
exports.DefaultValuesOfCorrectType = DefaultValuesOfCorrectType;

var _error = require('../../error');

var _printer = require('../../language/printer');

var _definition = require('../../type/definition');

var _isValidLiteralValue = require('../../utilities/isValidLiteralValue');

function defaultForNonNullArgMessage(varName, type, guessType) {
  return 'Variable "$' + varName + '" of type "' + String(type) + '" is required and ' + 'will not use the default value. ' + ('Perhaps you meant to use type "' + String(guessType) + '".');
}
/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

function badValueForDefaultArgMessage(varName, type, value, verboseErrors) {
  var message = verboseErrors ? '\n' + verboseErrors.join('\n') : '';
  return 'Variable "$' + varName + '" of type "' + String(type) + '" has invalid ' + ('default value ' + value + '.' + message);
}

/**
 * Variable default values of correct type
 *
 * A GraphQL document is only valid if all variable default values are of the
 * type expected by their definition.
 */
function DefaultValuesOfCorrectType(context) {
  return {
    VariableDefinition: function VariableDefinition(node) {
      var name = node.variable.name.value;
      var defaultValue = node.defaultValue;
      var type = context.getInputType();
      if (type instanceof _definition.GraphQLNonNull && defaultValue) {
        context.reportError(new _error.GraphQLError(defaultForNonNullArgMessage(name, type, type.ofType), [defaultValue]));
      }
      if (type && defaultValue) {
        var errors = (0, _isValidLiteralValue.isValidLiteralValue)(type, defaultValue);
        if (errors && errors.length > 0) {
          context.reportError(new _error.GraphQLError(badValueForDefaultArgMessage(name, type, (0, _printer.print)(defaultValue), errors), [defaultValue]));
        }
      }
      return false;
    },

    SelectionSet: function SelectionSet() {
      return false;
    },
    FragmentDefinition: function FragmentDefinition() {
      return false;
    }
  };
}
},{"../../error":88,"../../language/printer":109,"../../type/definition":115,"../../utilities/isValidLiteralValue":134}],143:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.undefinedFieldMessage = undefinedFieldMessage;
exports.FieldsOnCorrectType = FieldsOnCorrectType;

var _error = require('../../error');

var _suggestionList = require('../../jsutils/suggestionList');

var _suggestionList2 = _interopRequireDefault(_suggestionList);

var _quotedOrList = require('../../jsutils/quotedOrList');

var _quotedOrList2 = _interopRequireDefault(_quotedOrList);

var _definition = require('../../type/definition');

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

function undefinedFieldMessage(fieldName, type, suggestedTypeNames, suggestedFieldNames) {
  var message = 'Cannot query field "' + fieldName + '" on type "' + type + '".';
  if (suggestedTypeNames.length !== 0) {
    var suggestions = (0, _quotedOrList2.default)(suggestedTypeNames);
    message += ' Did you mean to use an inline fragment on ' + suggestions + '?';
  } else if (suggestedFieldNames.length !== 0) {
    message += ' Did you mean ' + (0, _quotedOrList2.default)(suggestedFieldNames) + '?';
  }
  return message;
}

/**
 * Fields on correct type
 *
 * A GraphQL document is only valid if all fields selected are defined by the
 * parent type, or are an allowed meta field such as __typename.
 */

/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

function FieldsOnCorrectType(context) {
  return {
    Field: function Field(node) {
      var type = context.getParentType();
      if (type) {
        var fieldDef = context.getFieldDef();
        if (!fieldDef) {
          // This field doesn't exist, lets look for suggestions.
          var schema = context.getSchema();
          var fieldName = node.name.value;
          // First determine if there are any suggested types to condition on.
          var suggestedTypeNames = getSuggestedTypeNames(schema, type, fieldName);
          // If there are no suggested types, then perhaps this was a typo?
          var suggestedFieldNames = suggestedTypeNames.length !== 0 ? [] : getSuggestedFieldNames(schema, type, fieldName);

          // Report an error, including helpful suggestions.
          context.reportError(new _error.GraphQLError(undefinedFieldMessage(fieldName, type.name, suggestedTypeNames, suggestedFieldNames), [node]));
        }
      }
    }
  };
}

/**
 * Go through all of the implementations of type, as well as the interfaces
 * that they implement. If any of those types include the provided field,
 * suggest them, sorted by how often the type is referenced,  starting
 * with Interfaces.
 */
function getSuggestedTypeNames(schema, type, fieldName) {
  if ((0, _definition.isAbstractType)(type)) {
    var suggestedObjectTypes = [];
    var interfaceUsageCount = Object.create(null);
    schema.getPossibleTypes(type).forEach(function (possibleType) {
      if (!possibleType.getFields()[fieldName]) {
        return;
      }
      // This object type defines this field.
      suggestedObjectTypes.push(possibleType.name);
      possibleType.getInterfaces().forEach(function (possibleInterface) {
        if (!possibleInterface.getFields()[fieldName]) {
          return;
        }
        // This interface type defines this field.
        interfaceUsageCount[possibleInterface.name] = (interfaceUsageCount[possibleInterface.name] || 0) + 1;
      });
    });

    // Suggest interface types based on how common they are.
    var suggestedInterfaceTypes = Object.keys(interfaceUsageCount).sort(function (a, b) {
      return interfaceUsageCount[b] - interfaceUsageCount[a];
    });

    // Suggest both interface and object types.
    return suggestedInterfaceTypes.concat(suggestedObjectTypes);
  }

  // Otherwise, must be an Object type, which does not have possible fields.
  return [];
}

/**
 * For the field name provided, determine if there are any similar field names
 * that may be the result of a typo.
 */
function getSuggestedFieldNames(schema, type, fieldName) {
  if (type instanceof _definition.GraphQLObjectType || type instanceof _definition.GraphQLInterfaceType) {
    var possibleFieldNames = Object.keys(type.getFields());
    return (0, _suggestionList2.default)(fieldName, possibleFieldNames);
  }
  // Otherwise, must be a Union type, which does not define fields.
  return [];
}
},{"../../error":88,"../../jsutils/quotedOrList":102,"../../jsutils/suggestionList":103,"../../type/definition":115}],144:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.inlineFragmentOnNonCompositeErrorMessage = inlineFragmentOnNonCompositeErrorMessage;
exports.fragmentOnNonCompositeErrorMessage = fragmentOnNonCompositeErrorMessage;
exports.FragmentsOnCompositeTypes = FragmentsOnCompositeTypes;

var _error = require('../../error');

var _printer = require('../../language/printer');

var _definition = require('../../type/definition');

var _typeFromAST = require('../../utilities/typeFromAST');

function inlineFragmentOnNonCompositeErrorMessage(type) {
  return 'Fragment cannot condition on non composite type "' + String(type) + '".';
}
/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

function fragmentOnNonCompositeErrorMessage(fragName, type) {
  return 'Fragment "' + fragName + '" cannot condition on non composite ' + ('type "' + String(type) + '".');
}

/**
 * Fragments on composite type
 *
 * Fragments use a type condition to determine if they apply, since fragments
 * can only be spread into a composite type (object, interface, or union), the
 * type condition must also be a composite type.
 */
function FragmentsOnCompositeTypes(context) {
  return {
    InlineFragment: function InlineFragment(node) {
      if (node.typeCondition) {
        var type = (0, _typeFromAST.typeFromAST)(context.getSchema(), node.typeCondition);
        if (type && !(0, _definition.isCompositeType)(type)) {
          context.reportError(new _error.GraphQLError(inlineFragmentOnNonCompositeErrorMessage((0, _printer.print)(node.typeCondition)), [node.typeCondition]));
        }
      }
    },
    FragmentDefinition: function FragmentDefinition(node) {
      var type = (0, _typeFromAST.typeFromAST)(context.getSchema(), node.typeCondition);
      if (type && !(0, _definition.isCompositeType)(type)) {
        context.reportError(new _error.GraphQLError(fragmentOnNonCompositeErrorMessage(node.name.value, (0, _printer.print)(node.typeCondition)), [node.typeCondition]));
      }
    }
  };
}
},{"../../error":88,"../../language/printer":109,"../../type/definition":115,"../../utilities/typeFromAST":138}],145:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.unknownArgMessage = unknownArgMessage;
exports.unknownDirectiveArgMessage = unknownDirectiveArgMessage;
exports.KnownArgumentNames = KnownArgumentNames;

var _error = require('../../error');

var _find = require('../../jsutils/find');

var _find2 = _interopRequireDefault(_find);

var _invariant = require('../../jsutils/invariant');

var _invariant2 = _interopRequireDefault(_invariant);

var _suggestionList = require('../../jsutils/suggestionList');

var _suggestionList2 = _interopRequireDefault(_suggestionList);

var _quotedOrList = require('../../jsutils/quotedOrList');

var _quotedOrList2 = _interopRequireDefault(_quotedOrList);

var _kinds = require('../../language/kinds');

var Kind = _interopRequireWildcard(_kinds);

function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

function unknownArgMessage(argName, fieldName, type, suggestedArgs) {
  var message = 'Unknown argument "' + argName + '" on field "' + fieldName + '" of ' + ('type "' + String(type) + '".');
  if (suggestedArgs.length) {
    message += ' Did you mean ' + (0, _quotedOrList2.default)(suggestedArgs) + '?';
  }
  return message;
}
/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

function unknownDirectiveArgMessage(argName, directiveName, suggestedArgs) {
  var message = 'Unknown argument "' + argName + '" on directive "@' + directiveName + '".';
  if (suggestedArgs.length) {
    message += ' Did you mean ' + (0, _quotedOrList2.default)(suggestedArgs) + '?';
  }
  return message;
}

/**
 * Known argument names
 *
 * A GraphQL field is only valid if all supplied arguments are defined by
 * that field.
 */
function KnownArgumentNames(context) {
  return {
    Argument: function Argument(node, key, parent, path, ancestors) {
      var argumentOf = ancestors[ancestors.length - 1];
      if (argumentOf.kind === Kind.FIELD) {
        var fieldDef = context.getFieldDef();
        if (fieldDef) {
          var fieldArgDef = (0, _find2.default)(fieldDef.args, function (arg) {
            return arg.name === node.name.value;
          });
          if (!fieldArgDef) {
            var parentType = context.getParentType();
            (0, _invariant2.default)(parentType);
            context.reportError(new _error.GraphQLError(unknownArgMessage(node.name.value, fieldDef.name, parentType.name, (0, _suggestionList2.default)(node.name.value, fieldDef.args.map(function (arg) {
              return arg.name;
            }))), [node]));
          }
        }
      } else if (argumentOf.kind === Kind.DIRECTIVE) {
        var directive = context.getDirective();
        if (directive) {
          var directiveArgDef = (0, _find2.default)(directive.args, function (arg) {
            return arg.name === node.name.value;
          });
          if (!directiveArgDef) {
            context.reportError(new _error.GraphQLError(unknownDirectiveArgMessage(node.name.value, directive.name, (0, _suggestionList2.default)(node.name.value, directive.args.map(function (arg) {
              return arg.name;
            }))), [node]));
          }
        }
      }
    }
  };
}
},{"../../error":88,"../../jsutils/find":96,"../../jsutils/invariant":97,"../../jsutils/quotedOrList":102,"../../jsutils/suggestionList":103,"../../language/kinds":105}],146:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.unknownDirectiveMessage = unknownDirectiveMessage;
exports.misplacedDirectiveMessage = misplacedDirectiveMessage;
exports.KnownDirectives = KnownDirectives;

var _error = require('../../error');

var _find = require('../../jsutils/find');

var _find2 = _interopRequireDefault(_find);

var _kinds = require('../../language/kinds');

var Kind = _interopRequireWildcard(_kinds);

var _directives = require('../../type/directives');

function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

function unknownDirectiveMessage(directiveName) {
  return 'Unknown directive "' + directiveName + '".';
}
/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

function misplacedDirectiveMessage(directiveName, location) {
  return 'Directive "' + directiveName + '" may not be used on ' + location + '.';
}

/**
 * Known directives
 *
 * A GraphQL document is only valid if all `@directives` are known by the
 * schema and legally positioned.
 */
function KnownDirectives(context) {
  return {
    Directive: function Directive(node, key, parent, path, ancestors) {
      var directiveDef = (0, _find2.default)(context.getSchema().getDirectives(), function (def) {
        return def.name === node.name.value;
      });
      if (!directiveDef) {
        context.reportError(new _error.GraphQLError(unknownDirectiveMessage(node.name.value), [node]));
        return;
      }
      var candidateLocation = getDirectiveLocationForASTPath(ancestors);
      if (!candidateLocation) {
        context.reportError(new _error.GraphQLError(misplacedDirectiveMessage(node.name.value, node.type), [node]));
      } else if (directiveDef.locations.indexOf(candidateLocation) === -1) {
        context.reportError(new _error.GraphQLError(misplacedDirectiveMessage(node.name.value, candidateLocation), [node]));
      }
    }
  };
}

function getDirectiveLocationForASTPath(ancestors) {
  var appliedTo = ancestors[ancestors.length - 1];
  switch (appliedTo.kind) {
    case Kind.OPERATION_DEFINITION:
      switch (appliedTo.operation) {
        case 'query':
          return _directives.DirectiveLocation.QUERY;
        case 'mutation':
          return _directives.DirectiveLocation.MUTATION;
        case 'subscription':
          return _directives.DirectiveLocation.SUBSCRIPTION;
      }
      break;
    case Kind.FIELD:
      return _directives.DirectiveLocation.FIELD;
    case Kind.FRAGMENT_SPREAD:
      return _directives.DirectiveLocation.FRAGMENT_SPREAD;
    case Kind.INLINE_FRAGMENT:
      return _directives.DirectiveLocation.INLINE_FRAGMENT;
    case Kind.FRAGMENT_DEFINITION:
      return _directives.DirectiveLocation.FRAGMENT_DEFINITION;
    case Kind.SCHEMA_DEFINITION:
      return _directives.DirectiveLocation.SCHEMA;
    case Kind.SCALAR_TYPE_DEFINITION:
      return _directives.DirectiveLocation.SCALAR;
    case Kind.OBJECT_TYPE_DEFINITION:
      return _directives.DirectiveLocation.OBJECT;
    case Kind.FIELD_DEFINITION:
      return _directives.DirectiveLocation.FIELD_DEFINITION;
    case Kind.INTERFACE_TYPE_DEFINITION:
      return _directives.DirectiveLocation.INTERFACE;
    case Kind.UNION_TYPE_DEFINITION:
      return _directives.DirectiveLocation.UNION;
    case Kind.ENUM_TYPE_DEFINITION:
      return _directives.DirectiveLocation.ENUM;
    case Kind.ENUM_VALUE_DEFINITION:
      return _directives.DirectiveLocation.ENUM_VALUE;
    case Kind.INPUT_OBJECT_TYPE_DEFINITION:
      return _directives.DirectiveLocation.INPUT_OBJECT;
    case Kind.INPUT_VALUE_DEFINITION:
      var parentNode = ancestors[ancestors.length - 3];
      return parentNode.kind === Kind.INPUT_OBJECT_TYPE_DEFINITION ? _directives.DirectiveLocation.INPUT_FIELD_DEFINITION : _directives.DirectiveLocation.ARGUMENT_DEFINITION;
  }
}
},{"../../error":88,"../../jsutils/find":96,"../../language/kinds":105,"../../type/directives":116}],147:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.unknownFragmentMessage = unknownFragmentMessage;
exports.KnownFragmentNames = KnownFragmentNames;

var _error = require('../../error');

/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

function unknownFragmentMessage(fragName) {
  return 'Unknown fragment "' + fragName + '".';
}

/**
 * Known fragment names
 *
 * A GraphQL document is only valid if all `...Fragment` fragment spreads refer
 * to fragments defined in the same document.
 */
function KnownFragmentNames(context) {
  return {
    FragmentSpread: function FragmentSpread(node) {
      var fragmentName = node.name.value;
      var fragment = context.getFragment(fragmentName);
      if (!fragment) {
        context.reportError(new _error.GraphQLError(unknownFragmentMessage(fragmentName), [node.name]));
      }
    }
  };
}
},{"../../error":88}],148:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.unknownTypeMessage = unknownTypeMessage;
exports.KnownTypeNames = KnownTypeNames;

var _error = require('../../error');

var _suggestionList = require('../../jsutils/suggestionList');

var _suggestionList2 = _interopRequireDefault(_suggestionList);

var _quotedOrList = require('../../jsutils/quotedOrList');

var _quotedOrList2 = _interopRequireDefault(_quotedOrList);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

function unknownTypeMessage(type, suggestedTypes) {
  var message = 'Unknown type "' + String(type) + '".';
  if (suggestedTypes.length) {
    message += ' Did you mean ' + (0, _quotedOrList2.default)(suggestedTypes) + '?';
  }
  return message;
}

/**
 * Known type names
 *
 * A GraphQL document is only valid if referenced types (specifically
 * variable definitions and fragment conditions) are defined by the type schema.
 */
function KnownTypeNames(context) {
  return {
    // TODO: when validating IDL, re-enable these. Experimental version does not
    // add unreferenced types, resulting in false-positive errors. Squelched
    // errors for now.
    ObjectTypeDefinition: function ObjectTypeDefinition() {
      return false;
    },
    InterfaceTypeDefinition: function InterfaceTypeDefinition() {
      return false;
    },
    UnionTypeDefinition: function UnionTypeDefinition() {
      return false;
    },
    InputObjectTypeDefinition: function InputObjectTypeDefinition() {
      return false;
    },
    NamedType: function NamedType(node) {
      var schema = context.getSchema();
      var typeName = node.name.value;
      var type = schema.getType(typeName);
      if (!type) {
        context.reportError(new _error.GraphQLError(unknownTypeMessage(typeName, (0, _suggestionList2.default)(typeName, Object.keys(schema.getTypeMap()))), [node]));
      }
    }
  };
}
},{"../../error":88,"../../jsutils/quotedOrList":102,"../../jsutils/suggestionList":103}],149:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.anonOperationNotAloneMessage = anonOperationNotAloneMessage;
exports.LoneAnonymousOperation = LoneAnonymousOperation;

var _error = require('../../error');

var _kinds = require('../../language/kinds');

function anonOperationNotAloneMessage() {
  return 'This anonymous operation must be the only defined operation.';
}

/**
 * Lone anonymous operation
 *
 * A GraphQL document is only valid if when it contains an anonymous operation
 * (the query short-hand) that it contains only that one operation definition.
 */

/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

function LoneAnonymousOperation(context) {
  var operationCount = 0;
  return {
    Document: function Document(node) {
      operationCount = node.definitions.filter(function (definition) {
        return definition.kind === _kinds.OPERATION_DEFINITION;
      }).length;
    },
    OperationDefinition: function OperationDefinition(node) {
      if (!node.name && operationCount > 1) {
        context.reportError(new _error.GraphQLError(anonOperationNotAloneMessage(), [node]));
      }
    }
  };
}
},{"../../error":88,"../../language/kinds":105}],150:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.cycleErrorMessage = cycleErrorMessage;
exports.NoFragmentCycles = NoFragmentCycles;

var _error = require('../../error');

/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

function cycleErrorMessage(fragName, spreadNames) {
  var via = spreadNames.length ? ' via ' + spreadNames.join(', ') : '';
  return 'Cannot spread fragment "' + fragName + '" within itself' + via + '.';
}

function NoFragmentCycles(context) {
  // Tracks already visited fragments to maintain O(N) and to ensure that cycles
  // are not redundantly reported.
  var visitedFrags = Object.create(null);

  // Array of AST nodes used to produce meaningful errors
  var spreadPath = [];

  // Position in the spread path
  var spreadPathIndexByName = Object.create(null);

  return {
    OperationDefinition: function OperationDefinition() {
      return false;
    },
    FragmentDefinition: function FragmentDefinition(node) {
      if (!visitedFrags[node.name.value]) {
        detectCycleRecursive(node);
      }
      return false;
    }
  };

  // This does a straight-forward DFS to find cycles.
  // It does not terminate when a cycle was found but continues to explore
  // the graph to find all possible cycles.
  function detectCycleRecursive(fragment) {
    var fragmentName = fragment.name.value;
    visitedFrags[fragmentName] = true;

    var spreadNodes = context.getFragmentSpreads(fragment.selectionSet);
    if (spreadNodes.length === 0) {
      return;
    }

    spreadPathIndexByName[fragmentName] = spreadPath.length;

    for (var i = 0; i < spreadNodes.length; i++) {
      var spreadNode = spreadNodes[i];
      var spreadName = spreadNode.name.value;
      var cycleIndex = spreadPathIndexByName[spreadName];

      if (cycleIndex === undefined) {
        spreadPath.push(spreadNode);
        if (!visitedFrags[spreadName]) {
          var spreadFragment = context.getFragment(spreadName);
          if (spreadFragment) {
            detectCycleRecursive(spreadFragment);
          }
        }
        spreadPath.pop();
      } else {
        var cyclePath = spreadPath.slice(cycleIndex);
        context.reportError(new _error.GraphQLError(cycleErrorMessage(spreadName, cyclePath.map(function (s) {
          return s.name.value;
        })), cyclePath.concat(spreadNode)));
      }
    }

    spreadPathIndexByName[fragmentName] = undefined;
  }
}
},{"../../error":88}],151:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.undefinedVarMessage = undefinedVarMessage;
exports.NoUndefinedVariables = NoUndefinedVariables;

var _error = require('../../error');

/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

function undefinedVarMessage(varName, opName) {
  return opName ? 'Variable "$' + varName + '" is not defined by operation "' + opName + '".' : 'Variable "$' + varName + '" is not defined.';
}

/**
 * No undefined variables
 *
 * A GraphQL operation is only valid if all variables encountered, both directly
 * and via fragment spreads, are defined by that operation.
 */
function NoUndefinedVariables(context) {
  var variableNameDefined = Object.create(null);

  return {
    OperationDefinition: {
      enter: function enter() {
        variableNameDefined = Object.create(null);
      },
      leave: function leave(operation) {
        var usages = context.getRecursiveVariableUsages(operation);

        usages.forEach(function (_ref) {
          var node = _ref.node;

          var varName = node.name.value;
          if (variableNameDefined[varName] !== true) {
            context.reportError(new _error.GraphQLError(undefinedVarMessage(varName, operation.name && operation.name.value), [node, operation]));
          }
        });
      }
    },
    VariableDefinition: function VariableDefinition(node) {
      variableNameDefined[node.variable.name.value] = true;
    }
  };
}
},{"../../error":88}],152:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.unusedFragMessage = unusedFragMessage;
exports.NoUnusedFragments = NoUnusedFragments;

var _error = require('../../error');

/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

function unusedFragMessage(fragName) {
  return 'Fragment "' + fragName + '" is never used.';
}

/**
 * No unused fragments
 *
 * A GraphQL document is only valid if all fragment definitions are spread
 * within operations, or spread within other fragments spread within operations.
 */
function NoUnusedFragments(context) {
  var operationDefs = [];
  var fragmentDefs = [];

  return {
    OperationDefinition: function OperationDefinition(node) {
      operationDefs.push(node);
      return false;
    },
    FragmentDefinition: function FragmentDefinition(node) {
      fragmentDefs.push(node);
      return false;
    },

    Document: {
      leave: function leave() {
        var fragmentNameUsed = Object.create(null);
        operationDefs.forEach(function (operation) {
          context.getRecursivelyReferencedFragments(operation).forEach(function (fragment) {
            fragmentNameUsed[fragment.name.value] = true;
          });
        });

        fragmentDefs.forEach(function (fragmentDef) {
          var fragName = fragmentDef.name.value;
          if (fragmentNameUsed[fragName] !== true) {
            context.reportError(new _error.GraphQLError(unusedFragMessage(fragName), [fragmentDef]));
          }
        });
      }
    }
  };
}
},{"../../error":88}],153:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.unusedVariableMessage = unusedVariableMessage;
exports.NoUnusedVariables = NoUnusedVariables;

var _error = require('../../error');

/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

function unusedVariableMessage(varName, opName) {
  return opName ? 'Variable "$' + varName + '" is never used in operation "' + opName + '".' : 'Variable "$' + varName + '" is never used.';
}

/**
 * No unused variables
 *
 * A GraphQL operation is only valid if all variables defined by an operation
 * are used, either directly or within a spread fragment.
 */
function NoUnusedVariables(context) {
  var variableDefs = [];

  return {
    OperationDefinition: {
      enter: function enter() {
        variableDefs = [];
      },
      leave: function leave(operation) {
        var variableNameUsed = Object.create(null);
        var usages = context.getRecursiveVariableUsages(operation);
        var opName = operation.name ? operation.name.value : null;

        usages.forEach(function (_ref) {
          var node = _ref.node;

          variableNameUsed[node.name.value] = true;
        });

        variableDefs.forEach(function (variableDef) {
          var variableName = variableDef.variable.name.value;
          if (variableNameUsed[variableName] !== true) {
            context.reportError(new _error.GraphQLError(unusedVariableMessage(variableName, opName), [variableDef]));
          }
        });
      }
    },
    VariableDefinition: function VariableDefinition(def) {
      variableDefs.push(def);
    }
  };
}
},{"../../error":88}],154:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.fieldsConflictMessage = fieldsConflictMessage;
exports.OverlappingFieldsCanBeMerged = OverlappingFieldsCanBeMerged;

var _error = require('../../error');

var _find = require('../../jsutils/find');

var _find2 = _interopRequireDefault(_find);

var _kinds = require('../../language/kinds');

var Kind = _interopRequireWildcard(_kinds);

var _printer = require('../../language/printer');

var _definition = require('../../type/definition');

var _typeFromAST = require('../../utilities/typeFromAST');

function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

function fieldsConflictMessage(responseName, reason) {
  return 'Fields "' + responseName + '" conflict because ' + reasonMessage(reason) + '. Use different aliases on the fields to fetch both if this was ' + 'intentional.';
}

function reasonMessage(reason) {
  if (Array.isArray(reason)) {
    return reason.map(function (_ref) {
      var responseName = _ref[0],
          subreason = _ref[1];
      return 'subfields "' + responseName + '" conflict because ' + reasonMessage(subreason);
    }).join(' and ');
  }
  return reason;
}

/**
 * Overlapping fields can be merged
 *
 * A selection set is only valid if all fields (including spreading any
 * fragments) either correspond to distinct response names or can be merged
 * without ambiguity.
 */
function OverlappingFieldsCanBeMerged(context) {
  // A memoization for when two fragments are compared "between" each other for
  // conflicts. Two fragments may be compared many times, so memoizing this can
  // dramatically improve the performance of this validator.
  var comparedFragments = new PairSet();

  // A cache for the "field map" and list of fragment names found in any given
  // selection set. Selection sets may be asked for this information multiple
  // times, so this improves the performance of this validator.
  var cachedFieldsAndFragmentNames = new Map();

  return {
    SelectionSet: function SelectionSet(selectionSet) {
      var conflicts = findConflictsWithinSelectionSet(context, cachedFieldsAndFragmentNames, comparedFragments, context.getParentType(), selectionSet);
      conflicts.forEach(function (_ref2) {
        var _ref2$ = _ref2[0],
            responseName = _ref2$[0],
            reason = _ref2$[1],
            fields1 = _ref2[1],
            fields2 = _ref2[2];
        return context.reportError(new _error.GraphQLError(fieldsConflictMessage(responseName, reason), fields1.concat(fields2)));
      });
    }
  };
}
// Field name and reason.

// Reason is a string, or a nested list of conflicts.

// Tuple defining a field node in a context.

// Map of array of those.


/**
 * Algorithm:
 *
 * Conflicts occur when two fields exist in a query which will produce the same
 * response name, but represent differing values, thus creating a conflict.
 * The algorithm below finds all conflicts via making a series of comparisons
 * between fields. In order to compare as few fields as possible, this makes
 * a series of comparisons "within" sets of fields and "between" sets of fields.
 *
 * Given any selection set, a collection produces both a set of fields by
 * also including all inline fragments, as well as a list of fragments
 * referenced by fragment spreads.
 *
 * A) Each selection set represented in the document first compares "within" its
 * collected set of fields, finding any conflicts between every pair of
 * overlapping fields.
 * Note: This is the *only time* that a the fields "within" a set are compared
 * to each other. After this only fields "between" sets are compared.
 *
 * B) Also, if any fragment is referenced in a selection set, then a
 * comparison is made "between" the original set of fields and the
 * referenced fragment.
 *
 * C) Also, if multiple fragments are referenced, then comparisons
 * are made "between" each referenced fragment.
 *
 * D) When comparing "between" a set of fields and a referenced fragment, first
 * a comparison is made between each field in the original set of fields and
 * each field in the referenced set of fields.
 *
 * E) Also, if any fragment is referenced in the referenced selection set,
 * then a comparison is made "between" the original set of fields and the
 * referenced fragment (recursively referring to step D).
 *
 * F) When comparing "between" two fragments, first a comparison is made between
 * each field in the first referenced set of fields and each field in the the
 * second referenced set of fields.
 *
 * G) Also, any fragments referenced by the first must be compared to the
 * second, and any fragments referenced by the second must be compared to the
 * first (recursively referring to step F).
 *
 * H) When comparing two fields, if both have selection sets, then a comparison
 * is made "between" both selection sets, first comparing the set of fields in
 * the first selection set with the set of fields in the second.
 *
 * I) Also, if any fragment is referenced in either selection set, then a
 * comparison is made "between" the other set of fields and the
 * referenced fragment.
 *
 * J) Also, if two fragments are referenced in both selection sets, then a
 * comparison is made "between" the two fragments.
 *
 */

// Find all conflicts found "within" a selection set, including those found
// via spreading in fragments. Called when visiting each SelectionSet in the
// GraphQL Document.
function findConflictsWithinSelectionSet(context, cachedFieldsAndFragmentNames, comparedFragments, parentType, selectionSet) {
  var conflicts = [];

  var _getFieldsAndFragment = getFieldsAndFragmentNames(context, cachedFieldsAndFragmentNames, parentType, selectionSet),
      fieldMap = _getFieldsAndFragment[0],
      fragmentNames = _getFieldsAndFragment[1];

  // (A) Find find all conflicts "within" the fields of this selection set.
  // Note: this is the *only place* `collectConflictsWithin` is called.


  collectConflictsWithin(context, conflicts, cachedFieldsAndFragmentNames, comparedFragments, fieldMap);

  // (B) Then collect conflicts between these fields and those represented by
  // each spread fragment name found.
  for (var i = 0; i < fragmentNames.length; i++) {
    collectConflictsBetweenFieldsAndFragment(context, conflicts, cachedFieldsAndFragmentNames, comparedFragments, false, fieldMap, fragmentNames[i]);
    // (C) Then compare this fragment with all other fragments found in this
    // selection set to collect conflicts between fragments spread together.
    // This compares each item in the list of fragment names to every other item
    // in that same list (except for itself).
    for (var j = i + 1; j < fragmentNames.length; j++) {
      collectConflictsBetweenFragments(context, conflicts, cachedFieldsAndFragmentNames, comparedFragments, false, fragmentNames[i], fragmentNames[j]);
    }
  }
  return conflicts;
}

// Collect all conflicts found between a set of fields and a fragment reference
// including via spreading in any nested fragments.
function collectConflictsBetweenFieldsAndFragment(context, conflicts, cachedFieldsAndFragmentNames, comparedFragments, areMutuallyExclusive, fieldMap, fragmentName) {
  var fragment = context.getFragment(fragmentName);
  if (!fragment) {
    return;
  }

  var _getReferencedFieldsA = getReferencedFieldsAndFragmentNames(context, cachedFieldsAndFragmentNames, fragment),
      fieldMap2 = _getReferencedFieldsA[0],
      fragmentNames2 = _getReferencedFieldsA[1];

  // (D) First collect any conflicts between the provided collection of fields
  // and the collection of fields represented by the given fragment.


  collectConflictsBetween(context, conflicts, cachedFieldsAndFragmentNames, comparedFragments, areMutuallyExclusive, fieldMap, fieldMap2);

  // (E) Then collect any conflicts between the provided collection of fields
  // and any fragment names found in the given fragment.
  for (var i = 0; i < fragmentNames2.length; i++) {
    collectConflictsBetweenFieldsAndFragment(context, conflicts, cachedFieldsAndFragmentNames, comparedFragments, areMutuallyExclusive, fieldMap, fragmentNames2[i]);
  }
}

// Collect all conflicts found between two fragments, including via spreading in
// any nested fragments.
function collectConflictsBetweenFragments(context, conflicts, cachedFieldsAndFragmentNames, comparedFragments, areMutuallyExclusive, fragmentName1, fragmentName2) {
  var fragment1 = context.getFragment(fragmentName1);
  var fragment2 = context.getFragment(fragmentName2);
  if (!fragment1 || !fragment2) {
    return;
  }

  // No need to compare a fragment to itself.
  if (fragment1 === fragment2) {
    return;
  }

  // Memoize so two fragments are not compared for conflicts more than once.
  if (comparedFragments.has(fragmentName1, fragmentName2, areMutuallyExclusive)) {
    return;
  }
  comparedFragments.add(fragmentName1, fragmentName2, areMutuallyExclusive);

  var _getReferencedFieldsA2 = getReferencedFieldsAndFragmentNames(context, cachedFieldsAndFragmentNames, fragment1),
      fieldMap1 = _getReferencedFieldsA2[0],
      fragmentNames1 = _getReferencedFieldsA2[1];

  var _getReferencedFieldsA3 = getReferencedFieldsAndFragmentNames(context, cachedFieldsAndFragmentNames, fragment2),
      fieldMap2 = _getReferencedFieldsA3[0],
      fragmentNames2 = _getReferencedFieldsA3[1];

  // (F) First, collect all conflicts between these two collections of fields
  // (not including any nested fragments).


  collectConflictsBetween(context, conflicts, cachedFieldsAndFragmentNames, comparedFragments, areMutuallyExclusive, fieldMap1, fieldMap2);

  // (G) Then collect conflicts between the first fragment and any nested
  // fragments spread in the second fragment.
  for (var j = 0; j < fragmentNames2.length; j++) {
    collectConflictsBetweenFragments(context, conflicts, cachedFieldsAndFragmentNames, comparedFragments, areMutuallyExclusive, fragmentName1, fragmentNames2[j]);
  }

  // (G) Then collect conflicts between the second fragment and any nested
  // fragments spread in the first fragment.
  for (var i = 0; i < fragmentNames1.length; i++) {
    collectConflictsBetweenFragments(context, conflicts, cachedFieldsAndFragmentNames, comparedFragments, areMutuallyExclusive, fragmentNames1[i], fragmentName2);
  }
}

// Find all conflicts found between two selection sets, including those found
// via spreading in fragments. Called when determining if conflicts exist
// between the sub-fields of two overlapping fields.
function findConflictsBetweenSubSelectionSets(context, cachedFieldsAndFragmentNames, comparedFragments, areMutuallyExclusive, parentType1, selectionSet1, parentType2, selectionSet2) {
  var conflicts = [];

  var _getFieldsAndFragment2 = getFieldsAndFragmentNames(context, cachedFieldsAndFragmentNames, parentType1, selectionSet1),
      fieldMap1 = _getFieldsAndFragment2[0],
      fragmentNames1 = _getFieldsAndFragment2[1];

  var _getFieldsAndFragment3 = getFieldsAndFragmentNames(context, cachedFieldsAndFragmentNames, parentType2, selectionSet2),
      fieldMap2 = _getFieldsAndFragment3[0],
      fragmentNames2 = _getFieldsAndFragment3[1];

  // (H) First, collect all conflicts between these two collections of field.


  collectConflictsBetween(context, conflicts, cachedFieldsAndFragmentNames, comparedFragments, areMutuallyExclusive, fieldMap1, fieldMap2);

  // (I) Then collect conflicts between the first collection of fields and
  // those referenced by each fragment name associated with the second.
  for (var j = 0; j < fragmentNames2.length; j++) {
    collectConflictsBetweenFieldsAndFragment(context, conflicts, cachedFieldsAndFragmentNames, comparedFragments, areMutuallyExclusive, fieldMap1, fragmentNames2[j]);
  }

  // (I) Then collect conflicts between the second collection of fields and
  // those referenced by each fragment name associated with the first.
  for (var i = 0; i < fragmentNames1.length; i++) {
    collectConflictsBetweenFieldsAndFragment(context, conflicts, cachedFieldsAndFragmentNames, comparedFragments, areMutuallyExclusive, fieldMap2, fragmentNames1[i]);
  }

  // (J) Also collect conflicts between any fragment names by the first and
  // fragment names by the second. This compares each item in the first set of
  // names to each item in the second set of names.
  for (var _i = 0; _i < fragmentNames1.length; _i++) {
    for (var _j = 0; _j < fragmentNames2.length; _j++) {
      collectConflictsBetweenFragments(context, conflicts, cachedFieldsAndFragmentNames, comparedFragments, areMutuallyExclusive, fragmentNames1[_i], fragmentNames2[_j]);
    }
  }
  return conflicts;
}

// Collect all Conflicts "within" one collection of fields.
function collectConflictsWithin(context, conflicts, cachedFieldsAndFragmentNames, comparedFragments, fieldMap) {
  // A field map is a keyed collection, where each key represents a response
  // name and the value at that key is a list of all fields which provide that
  // response name. For every response name, if there are multiple fields, they
  // must be compared to find a potential conflict.
  Object.keys(fieldMap).forEach(function (responseName) {
    var fields = fieldMap[responseName];
    // This compares every field in the list to every other field in this list
    // (except to itself). If the list only has one item, nothing needs to
    // be compared.
    if (fields.length > 1) {
      for (var i = 0; i < fields.length; i++) {
        for (var j = i + 1; j < fields.length; j++) {
          var conflict = findConflict(context, cachedFieldsAndFragmentNames, comparedFragments, false, // within one collection is never mutually exclusive
          responseName, fields[i], fields[j]);
          if (conflict) {
            conflicts.push(conflict);
          }
        }
      }
    }
  });
}

// Collect all Conflicts between two collections of fields. This is similar to,
// but different from the `collectConflictsWithin` function above. This check
// assumes that `collectConflictsWithin` has already been called on each
// provided collection of fields. This is true because this validator traverses
// each individual selection set.
function collectConflictsBetween(context, conflicts, cachedFieldsAndFragmentNames, comparedFragments, parentFieldsAreMutuallyExclusive, fieldMap1, fieldMap2) {
  // A field map is a keyed collection, where each key represents a response
  // name and the value at that key is a list of all fields which provide that
  // response name. For any response name which appears in both provided field
  // maps, each field from the first field map must be compared to every field
  // in the second field map to find potential conflicts.
  Object.keys(fieldMap1).forEach(function (responseName) {
    var fields2 = fieldMap2[responseName];
    if (fields2) {
      var fields1 = fieldMap1[responseName];
      for (var i = 0; i < fields1.length; i++) {
        for (var j = 0; j < fields2.length; j++) {
          var conflict = findConflict(context, cachedFieldsAndFragmentNames, comparedFragments, parentFieldsAreMutuallyExclusive, responseName, fields1[i], fields2[j]);
          if (conflict) {
            conflicts.push(conflict);
          }
        }
      }
    }
  });
}

// Determines if there is a conflict between two particular fields, including
// comparing their sub-fields.
function findConflict(context, cachedFieldsAndFragmentNames, comparedFragments, parentFieldsAreMutuallyExclusive, responseName, field1, field2) {
  var parentType1 = field1[0],
      node1 = field1[1],
      def1 = field1[2];
  var parentType2 = field2[0],
      node2 = field2[1],
      def2 = field2[2];

  // If it is known that two fields could not possibly apply at the same
  // time, due to the parent types, then it is safe to permit them to diverge
  // in aliased field or arguments used as they will not present any ambiguity
  // by differing.
  // It is known that two parent types could never overlap if they are
  // different Object types. Interface or Union types might overlap - if not
  // in the current state of the schema, then perhaps in some future version,
  // thus may not safely diverge.

  var areMutuallyExclusive = parentFieldsAreMutuallyExclusive || parentType1 !== parentType2 && parentType1 instanceof _definition.GraphQLObjectType && parentType2 instanceof _definition.GraphQLObjectType;

  // The return type for each field.
  var type1 = def1 && def1.type;
  var type2 = def2 && def2.type;

  if (!areMutuallyExclusive) {
    // Two aliases must refer to the same field.
    var name1 = node1.name.value;
    var name2 = node2.name.value;
    if (name1 !== name2) {
      return [[responseName, name1 + ' and ' + name2 + ' are different fields'], [node1], [node2]];
    }

    // Two field calls must have the same arguments.
    if (!sameArguments(node1.arguments || [], node2.arguments || [])) {
      return [[responseName, 'they have differing arguments'], [node1], [node2]];
    }
  }

  if (type1 && type2 && doTypesConflict(type1, type2)) {
    return [[responseName, 'they return conflicting types ' + String(type1) + ' and ' + String(type2)], [node1], [node2]];
  }

  // Collect and compare sub-fields. Use the same "visited fragment names" list
  // for both collections so fields in a fragment reference are never
  // compared to themselves.
  var selectionSet1 = node1.selectionSet;
  var selectionSet2 = node2.selectionSet;
  if (selectionSet1 && selectionSet2) {
    var conflicts = findConflictsBetweenSubSelectionSets(context, cachedFieldsAndFragmentNames, comparedFragments, areMutuallyExclusive, (0, _definition.getNamedType)(type1), selectionSet1, (0, _definition.getNamedType)(type2), selectionSet2);
    return subfieldConflicts(conflicts, responseName, node1, node2);
  }
}

function sameArguments(arguments1, arguments2) {
  if (arguments1.length !== arguments2.length) {
    return false;
  }
  return arguments1.every(function (argument1) {
    var argument2 = (0, _find2.default)(arguments2, function (argument) {
      return argument.name.value === argument1.name.value;
    });
    if (!argument2) {
      return false;
    }
    return sameValue(argument1.value, argument2.value);
  });
}

function sameValue(value1, value2) {
  return !value1 && !value2 || (0, _printer.print)(value1) === (0, _printer.print)(value2);
}

// Two types conflict if both types could not apply to a value simultaneously.
// Composite types are ignored as their individual field types will be compared
// later recursively. However List and Non-Null types must match.
function doTypesConflict(type1, type2) {
  if (type1 instanceof _definition.GraphQLList) {
    return type2 instanceof _definition.GraphQLList ? doTypesConflict(type1.ofType, type2.ofType) : true;
  }
  if (type2 instanceof _definition.GraphQLList) {
    return type1 instanceof _definition.GraphQLList ? doTypesConflict(type1.ofType, type2.ofType) : true;
  }
  if (type1 instanceof _definition.GraphQLNonNull) {
    return type2 instanceof _definition.GraphQLNonNull ? doTypesConflict(type1.ofType, type2.ofType) : true;
  }
  if (type2 instanceof _definition.GraphQLNonNull) {
    return type1 instanceof _definition.GraphQLNonNull ? doTypesConflict(type1.ofType, type2.ofType) : true;
  }
  if ((0, _definition.isLeafType)(type1) || (0, _definition.isLeafType)(type2)) {
    return type1 !== type2;
  }
  return false;
}

// Given a selection set, return the collection of fields (a mapping of response
// name to field nodes and definitions) as well as a list of fragment names
// referenced via fragment spreads.
function getFieldsAndFragmentNames(context, cachedFieldsAndFragmentNames, parentType, selectionSet) {
  var cached = cachedFieldsAndFragmentNames.get(selectionSet);
  if (!cached) {
    var nodeAndDefs = Object.create(null);
    var fragmentNames = Object.create(null);
    _collectFieldsAndFragmentNames(context, parentType, selectionSet, nodeAndDefs, fragmentNames);
    cached = [nodeAndDefs, Object.keys(fragmentNames)];
    cachedFieldsAndFragmentNames.set(selectionSet, cached);
  }
  return cached;
}

// Given a reference to a fragment, return the represented collection of fields
// as well as a list of nested fragment names referenced via fragment spreads.
function getReferencedFieldsAndFragmentNames(context, cachedFieldsAndFragmentNames, fragment) {
  // Short-circuit building a type from the node if possible.
  var cached = cachedFieldsAndFragmentNames.get(fragment.selectionSet);
  if (cached) {
    return cached;
  }

  var fragmentType = (0, _typeFromAST.typeFromAST)(context.getSchema(), fragment.typeCondition);
  return getFieldsAndFragmentNames(context, cachedFieldsAndFragmentNames, fragmentType, fragment.selectionSet);
}

function _collectFieldsAndFragmentNames(context, parentType, selectionSet, nodeAndDefs, fragmentNames) {
  for (var i = 0; i < selectionSet.selections.length; i++) {
    var selection = selectionSet.selections[i];
    switch (selection.kind) {
      case Kind.FIELD:
        var fieldName = selection.name.value;
        var fieldDef = void 0;
        if (parentType instanceof _definition.GraphQLObjectType || parentType instanceof _definition.GraphQLInterfaceType) {
          fieldDef = parentType.getFields()[fieldName];
        }
        var responseName = selection.alias ? selection.alias.value : fieldName;
        if (!nodeAndDefs[responseName]) {
          nodeAndDefs[responseName] = [];
        }
        nodeAndDefs[responseName].push([parentType, selection, fieldDef]);
        break;
      case Kind.FRAGMENT_SPREAD:
        fragmentNames[selection.name.value] = true;
        break;
      case Kind.INLINE_FRAGMENT:
        var typeCondition = selection.typeCondition;
        var inlineFragmentType = typeCondition ? (0, _typeFromAST.typeFromAST)(context.getSchema(), typeCondition) : parentType;
        _collectFieldsAndFragmentNames(context, inlineFragmentType, selection.selectionSet, nodeAndDefs, fragmentNames);
        break;
    }
  }
}

// Given a series of Conflicts which occurred between two sub-fields, generate
// a single Conflict.
function subfieldConflicts(conflicts, responseName, node1, node2) {
  if (conflicts.length > 0) {
    return [[responseName, conflicts.map(function (_ref3) {
      var reason = _ref3[0];
      return reason;
    })], conflicts.reduce(function (allFields, _ref4) {
      var fields1 = _ref4[1];
      return allFields.concat(fields1);
    }, [node1]), conflicts.reduce(function (allFields, _ref5) {
      var fields2 = _ref5[2];
      return allFields.concat(fields2);
    }, [node2])];
  }
}

/**
 * A way to keep track of pairs of things when the ordering of the pair does
 * not matter. We do this by maintaining a sort of double adjacency sets.
 */

var PairSet = function () {
  function PairSet() {
    _classCallCheck(this, PairSet);

    this._data = Object.create(null);
  }

  PairSet.prototype.has = function has(a, b, areMutuallyExclusive) {
    var first = this._data[a];
    var result = first && first[b];
    if (result === undefined) {
      return false;
    }
    // areMutuallyExclusive being false is a superset of being true,
    // hence if we want to know if this PairSet "has" these two with no
    // exclusivity, we have to ensure it was added as such.
    if (areMutuallyExclusive === false) {
      return result === false;
    }
    return true;
  };

  PairSet.prototype.add = function add(a, b, areMutuallyExclusive) {
    _pairSetAdd(this._data, a, b, areMutuallyExclusive);
    _pairSetAdd(this._data, b, a, areMutuallyExclusive);
  };

  return PairSet;
}();

function _pairSetAdd(data, a, b, areMutuallyExclusive) {
  var map = data[a];
  if (!map) {
    map = Object.create(null);
    data[a] = map;
  }
  map[b] = areMutuallyExclusive;
}
},{"../../error":88,"../../jsutils/find":96,"../../language/kinds":105,"../../language/printer":109,"../../type/definition":115,"../../utilities/typeFromAST":138}],155:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.typeIncompatibleSpreadMessage = typeIncompatibleSpreadMessage;
exports.typeIncompatibleAnonSpreadMessage = typeIncompatibleAnonSpreadMessage;
exports.PossibleFragmentSpreads = PossibleFragmentSpreads;

var _error = require('../../error');

var _typeComparators = require('../../utilities/typeComparators');

var _typeFromAST = require('../../utilities/typeFromAST');

/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

function typeIncompatibleSpreadMessage(fragName, parentType, fragType) {
  return 'Fragment "' + fragName + '" cannot be spread here as objects of ' + ('type "' + String(parentType) + '" can never be of type "' + String(fragType) + '".');
}

function typeIncompatibleAnonSpreadMessage(parentType, fragType) {
  return 'Fragment cannot be spread here as objects of ' + ('type "' + String(parentType) + '" can never be of type "' + String(fragType) + '".');
}

/**
 * Possible fragment spread
 *
 * A fragment spread is only valid if the type condition could ever possibly
 * be true: if there is a non-empty intersection of the possible parent types,
 * and possible types which pass the type condition.
 */
function PossibleFragmentSpreads(context) {
  return {
    InlineFragment: function InlineFragment(node) {
      var fragType = context.getType();
      var parentType = context.getParentType();
      if (fragType && parentType && !(0, _typeComparators.doTypesOverlap)(context.getSchema(), fragType, parentType)) {
        context.reportError(new _error.GraphQLError(typeIncompatibleAnonSpreadMessage(parentType, fragType), [node]));
      }
    },
    FragmentSpread: function FragmentSpread(node) {
      var fragName = node.name.value;
      var fragType = getFragmentType(context, fragName);
      var parentType = context.getParentType();
      if (fragType && parentType && !(0, _typeComparators.doTypesOverlap)(context.getSchema(), fragType, parentType)) {
        context.reportError(new _error.GraphQLError(typeIncompatibleSpreadMessage(fragName, parentType, fragType), [node]));
      }
    }
  };
}

function getFragmentType(context, name) {
  var frag = context.getFragment(name);
  return frag && (0, _typeFromAST.typeFromAST)(context.getSchema(), frag.typeCondition);
}
},{"../../error":88,"../../utilities/typeComparators":137,"../../utilities/typeFromAST":138}],156:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.missingFieldArgMessage = missingFieldArgMessage;
exports.missingDirectiveArgMessage = missingDirectiveArgMessage;
exports.ProvidedNonNullArguments = ProvidedNonNullArguments;

var _error = require('../../error');

var _keyMap = require('../../jsutils/keyMap');

var _keyMap2 = _interopRequireDefault(_keyMap);

var _definition = require('../../type/definition');

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

function missingFieldArgMessage(fieldName, argName, type) {
  return 'Field "' + fieldName + '" argument "' + argName + '" of type ' + ('"' + String(type) + '" is required but not provided.');
}

function missingDirectiveArgMessage(directiveName, argName, type) {
  return 'Directive "@' + directiveName + '" argument "' + argName + '" of type ' + ('"' + String(type) + '" is required but not provided.');
}

/**
 * Provided required arguments
 *
 * A field or directive is only valid if all required (non-null) field arguments
 * have been provided.
 */
function ProvidedNonNullArguments(context) {
  return {
    Field: {
      // Validate on leave to allow for deeper errors to appear first.
      leave: function leave(node) {
        var fieldDef = context.getFieldDef();
        if (!fieldDef) {
          return false;
        }
        var argNodes = node.arguments || [];

        var argNodeMap = (0, _keyMap2.default)(argNodes, function (arg) {
          return arg.name.value;
        });
        fieldDef.args.forEach(function (argDef) {
          var argNode = argNodeMap[argDef.name];
          if (!argNode && argDef.type instanceof _definition.GraphQLNonNull) {
            context.reportError(new _error.GraphQLError(missingFieldArgMessage(node.name.value, argDef.name, argDef.type), [node]));
          }
        });
      }
    },

    Directive: {
      // Validate on leave to allow for deeper errors to appear first.
      leave: function leave(node) {
        var directiveDef = context.getDirective();
        if (!directiveDef) {
          return false;
        }
        var argNodes = node.arguments || [];

        var argNodeMap = (0, _keyMap2.default)(argNodes, function (arg) {
          return arg.name.value;
        });
        directiveDef.args.forEach(function (argDef) {
          var argNode = argNodeMap[argDef.name];
          if (!argNode && argDef.type instanceof _definition.GraphQLNonNull) {
            context.reportError(new _error.GraphQLError(missingDirectiveArgMessage(node.name.value, argDef.name, argDef.type), [node]));
          }
        });
      }
    }
  };
}
},{"../../error":88,"../../jsutils/keyMap":100,"../../type/definition":115}],157:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.noSubselectionAllowedMessage = noSubselectionAllowedMessage;
exports.requiredSubselectionMessage = requiredSubselectionMessage;
exports.ScalarLeafs = ScalarLeafs;

var _error = require('../../error');

var _definition = require('../../type/definition');

function noSubselectionAllowedMessage(fieldName, type) {
  return 'Field "' + fieldName + '" must not have a selection since ' + ('type "' + String(type) + '" has no subfields.');
}
/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

function requiredSubselectionMessage(fieldName, type) {
  return 'Field "' + fieldName + '" of type "' + String(type) + '" must have a ' + ('selection of subfields. Did you mean "' + fieldName + ' { ... }"?');
}

/**
 * Scalar leafs
 *
 * A GraphQL document is valid only if all leaf fields (fields without
 * sub selections) are of scalar or enum types.
 */
function ScalarLeafs(context) {
  return {
    Field: function Field(node) {
      var type = context.getType();
      if (type) {
        if ((0, _definition.isLeafType)((0, _definition.getNamedType)(type))) {
          if (node.selectionSet) {
            context.reportError(new _error.GraphQLError(noSubselectionAllowedMessage(node.name.value, type), [node.selectionSet]));
          }
        } else if (!node.selectionSet) {
          context.reportError(new _error.GraphQLError(requiredSubselectionMessage(node.name.value, type), [node]));
        }
      }
    }
  };
}
},{"../../error":88,"../../type/definition":115}],158:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.singleFieldOnlyMessage = singleFieldOnlyMessage;
exports.SingleFieldSubscriptions = SingleFieldSubscriptions;

var _error = require('../../error');

/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

function singleFieldOnlyMessage(name) {
  return (name ? 'Subscription "' + name + '" ' : 'Anonymous Subscription ') + 'must select only one top level field.';
}

/**
 * Subscriptions must only include one field.
 *
 * A GraphQL subscription is valid only if it contains a single root field.
 */
function SingleFieldSubscriptions(context) {
  return {
    OperationDefinition: function OperationDefinition(node) {
      if (node.operation === 'subscription') {
        if (node.selectionSet.selections.length !== 1) {
          context.reportError(new _error.GraphQLError(singleFieldOnlyMessage(node.name && node.name.value), node.selectionSet.selections.slice(1)));
        }
      }
    }
  };
}
},{"../../error":88}],159:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.duplicateArgMessage = duplicateArgMessage;
exports.UniqueArgumentNames = UniqueArgumentNames;

var _error = require('../../error');

/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

function duplicateArgMessage(argName) {
  return 'There can be only one argument named "' + argName + '".';
}

/**
 * Unique argument names
 *
 * A GraphQL field or directive is only valid if all supplied arguments are
 * uniquely named.
 */
function UniqueArgumentNames(context) {
  var knownArgNames = Object.create(null);
  return {
    Field: function Field() {
      knownArgNames = Object.create(null);
    },
    Directive: function Directive() {
      knownArgNames = Object.create(null);
    },
    Argument: function Argument(node) {
      var argName = node.name.value;
      if (knownArgNames[argName]) {
        context.reportError(new _error.GraphQLError(duplicateArgMessage(argName), [knownArgNames[argName], node.name]));
      } else {
        knownArgNames[argName] = node.name;
      }
      return false;
    }
  };
}
},{"../../error":88}],160:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.duplicateDirectiveMessage = duplicateDirectiveMessage;
exports.UniqueDirectivesPerLocation = UniqueDirectivesPerLocation;

var _error = require('../../error');

/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

function duplicateDirectiveMessage(directiveName) {
  return 'The directive "' + directiveName + '" can only be used once at ' + 'this location.';
}

/**
 * Unique directive names per location
 *
 * A GraphQL document is only valid if all directives at a given location
 * are uniquely named.
 */
function UniqueDirectivesPerLocation(context) {
  return {
    // Many different AST nodes may contain directives. Rather than listing
    // them all, just listen for entering any node, and check to see if it
    // defines any directives.
    enter: function enter(node) {
      if (node.directives) {
        var knownDirectives = Object.create(null);
        node.directives.forEach(function (directive) {
          var directiveName = directive.name.value;
          if (knownDirectives[directiveName]) {
            context.reportError(new _error.GraphQLError(duplicateDirectiveMessage(directiveName), [knownDirectives[directiveName], directive]));
          } else {
            knownDirectives[directiveName] = directive;
          }
        });
      }
    }
  };
}
},{"../../error":88}],161:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.duplicateFragmentNameMessage = duplicateFragmentNameMessage;
exports.UniqueFragmentNames = UniqueFragmentNames;

var _error = require('../../error');

/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

function duplicateFragmentNameMessage(fragName) {
  return 'There can be only one fragment named "' + fragName + '".';
}

/**
 * Unique fragment names
 *
 * A GraphQL document is only valid if all defined fragments have unique names.
 */
function UniqueFragmentNames(context) {
  var knownFragmentNames = Object.create(null);
  return {
    OperationDefinition: function OperationDefinition() {
      return false;
    },
    FragmentDefinition: function FragmentDefinition(node) {
      var fragmentName = node.name.value;
      if (knownFragmentNames[fragmentName]) {
        context.reportError(new _error.GraphQLError(duplicateFragmentNameMessage(fragmentName), [knownFragmentNames[fragmentName], node.name]));
      } else {
        knownFragmentNames[fragmentName] = node.name;
      }
      return false;
    }
  };
}
},{"../../error":88}],162:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.duplicateInputFieldMessage = duplicateInputFieldMessage;
exports.UniqueInputFieldNames = UniqueInputFieldNames;

var _error = require('../../error');

/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

function duplicateInputFieldMessage(fieldName) {
  return 'There can be only one input field named "' + fieldName + '".';
}

/**
 * Unique input field names
 *
 * A GraphQL input object value is only valid if all supplied fields are
 * uniquely named.
 */
function UniqueInputFieldNames(context) {
  var knownNameStack = [];
  var knownNames = Object.create(null);

  return {
    ObjectValue: {
      enter: function enter() {
        knownNameStack.push(knownNames);
        knownNames = Object.create(null);
      },
      leave: function leave() {
        knownNames = knownNameStack.pop();
      }
    },
    ObjectField: function ObjectField(node) {
      var fieldName = node.name.value;
      if (knownNames[fieldName]) {
        context.reportError(new _error.GraphQLError(duplicateInputFieldMessage(fieldName), [knownNames[fieldName], node.name]));
      } else {
        knownNames[fieldName] = node.name;
      }
      return false;
    }
  };
}
},{"../../error":88}],163:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.duplicateOperationNameMessage = duplicateOperationNameMessage;
exports.UniqueOperationNames = UniqueOperationNames;

var _error = require('../../error');

/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

function duplicateOperationNameMessage(operationName) {
  return 'There can be only one operation named "' + operationName + '".';
}

/**
 * Unique operation names
 *
 * A GraphQL document is only valid if all defined operations have unique names.
 */
function UniqueOperationNames(context) {
  var knownOperationNames = Object.create(null);
  return {
    OperationDefinition: function OperationDefinition(node) {
      var operationName = node.name;
      if (operationName) {
        if (knownOperationNames[operationName.value]) {
          context.reportError(new _error.GraphQLError(duplicateOperationNameMessage(operationName.value), [knownOperationNames[operationName.value], operationName]));
        } else {
          knownOperationNames[operationName.value] = operationName;
        }
      }
      return false;
    },

    FragmentDefinition: function FragmentDefinition() {
      return false;
    }
  };
}
},{"../../error":88}],164:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.duplicateVariableMessage = duplicateVariableMessage;
exports.UniqueVariableNames = UniqueVariableNames;

var _error = require('../../error');

function duplicateVariableMessage(variableName) {
  return 'There can be only one variable named "' + variableName + '".';
}

/**
 * Unique variable names
 *
 * A GraphQL operation is only valid if all its variables are uniquely named.
 */

/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

function UniqueVariableNames(context) {
  var knownVariableNames = Object.create(null);
  return {
    OperationDefinition: function OperationDefinition() {
      knownVariableNames = Object.create(null);
    },
    VariableDefinition: function VariableDefinition(node) {
      var variableName = node.variable.name.value;
      if (knownVariableNames[variableName]) {
        context.reportError(new _error.GraphQLError(duplicateVariableMessage(variableName), [knownVariableNames[variableName], node.variable.name]));
      } else {
        knownVariableNames[variableName] = node.variable.name;
      }
    }
  };
}
},{"../../error":88}],165:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.nonInputTypeOnVarMessage = nonInputTypeOnVarMessage;
exports.VariablesAreInputTypes = VariablesAreInputTypes;

var _error = require('../../error');

var _printer = require('../../language/printer');

var _definition = require('../../type/definition');

var _typeFromAST = require('../../utilities/typeFromAST');

function nonInputTypeOnVarMessage(variableName, typeName) {
  return 'Variable "$' + variableName + '" cannot be non-input type "' + typeName + '".';
}

/**
 * Variables are input types
 *
 * A GraphQL operation is only valid if all the variables it defines are of
 * input types (scalar, enum, or input object).
 */

/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

function VariablesAreInputTypes(context) {
  return {
    VariableDefinition: function VariableDefinition(node) {
      var type = (0, _typeFromAST.typeFromAST)(context.getSchema(), node.type);

      // If the variable type is not an input type, return an error.
      if (type && !(0, _definition.isInputType)(type)) {
        var variableName = node.variable.name.value;
        context.reportError(new _error.GraphQLError(nonInputTypeOnVarMessage(variableName, (0, _printer.print)(node.type)), [node.type]));
      }
    }
  };
}
},{"../../error":88,"../../language/printer":109,"../../type/definition":115,"../../utilities/typeFromAST":138}],166:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.badVarPosMessage = badVarPosMessage;
exports.VariablesInAllowedPosition = VariablesInAllowedPosition;

var _error = require('../../error');

var _definition = require('../../type/definition');

var _typeComparators = require('../../utilities/typeComparators');

var _typeFromAST = require('../../utilities/typeFromAST');

function badVarPosMessage(varName, varType, expectedType) {
  return 'Variable "$' + varName + '" of type "' + String(varType) + '" used in ' + ('position expecting type "' + String(expectedType) + '".');
}

/**
 * Variables passed to field arguments conform to type
 */

/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

function VariablesInAllowedPosition(context) {
  var varDefMap = Object.create(null);

  return {
    OperationDefinition: {
      enter: function enter() {
        varDefMap = Object.create(null);
      },
      leave: function leave(operation) {
        var usages = context.getRecursiveVariableUsages(operation);

        usages.forEach(function (_ref) {
          var node = _ref.node,
              type = _ref.type;

          var varName = node.name.value;
          var varDef = varDefMap[varName];
          if (varDef && type) {
            // A var type is allowed if it is the same or more strict (e.g. is
            // a subtype of) than the expected type. It can be more strict if
            // the variable type is non-null when the expected type is nullable.
            // If both are list types, the variable item type can be more strict
            // than the expected item type (contravariant).
            var schema = context.getSchema();
            var varType = (0, _typeFromAST.typeFromAST)(schema, varDef.type);
            if (varType && !(0, _typeComparators.isTypeSubTypeOf)(schema, effectiveType(varType, varDef), type)) {
              context.reportError(new _error.GraphQLError(badVarPosMessage(varName, varType, type), [varDef, node]));
            }
          }
        });
      }
    },
    VariableDefinition: function VariableDefinition(node) {
      varDefMap[node.variable.name.value] = node;
    }
  };
}

// If a variable definition has a default value, it's effectively non-null.
function effectiveType(varType, varDef) {
  return !varDef.defaultValue || varType instanceof _definition.GraphQLNonNull ? varType : new _definition.GraphQLNonNull(varType);
}
},{"../../error":88,"../../type/definition":115,"../../utilities/typeComparators":137,"../../utilities/typeFromAST":138}],167:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.specifiedRules = undefined;

var _UniqueOperationNames = require('./rules/UniqueOperationNames');

var _LoneAnonymousOperation = require('./rules/LoneAnonymousOperation');

var _SingleFieldSubscriptions = require('./rules/SingleFieldSubscriptions');

var _KnownTypeNames = require('./rules/KnownTypeNames');

var _FragmentsOnCompositeTypes = require('./rules/FragmentsOnCompositeTypes');

var _VariablesAreInputTypes = require('./rules/VariablesAreInputTypes');

var _ScalarLeafs = require('./rules/ScalarLeafs');

var _FieldsOnCorrectType = require('./rules/FieldsOnCorrectType');

var _UniqueFragmentNames = require('./rules/UniqueFragmentNames');

var _KnownFragmentNames = require('./rules/KnownFragmentNames');

var _NoUnusedFragments = require('./rules/NoUnusedFragments');

var _PossibleFragmentSpreads = require('./rules/PossibleFragmentSpreads');

var _NoFragmentCycles = require('./rules/NoFragmentCycles');

var _UniqueVariableNames = require('./rules/UniqueVariableNames');

var _NoUndefinedVariables = require('./rules/NoUndefinedVariables');

var _NoUnusedVariables = require('./rules/NoUnusedVariables');

var _KnownDirectives = require('./rules/KnownDirectives');

var _UniqueDirectivesPerLocation = require('./rules/UniqueDirectivesPerLocation');

var _KnownArgumentNames = require('./rules/KnownArgumentNames');

var _UniqueArgumentNames = require('./rules/UniqueArgumentNames');

var _ArgumentsOfCorrectType = require('./rules/ArgumentsOfCorrectType');

var _ProvidedNonNullArguments = require('./rules/ProvidedNonNullArguments');

var _DefaultValuesOfCorrectType = require('./rules/DefaultValuesOfCorrectType');

var _VariablesInAllowedPosition = require('./rules/VariablesInAllowedPosition');

var _OverlappingFieldsCanBeMerged = require('./rules/OverlappingFieldsCanBeMerged');

var _UniqueInputFieldNames = require('./rules/UniqueInputFieldNames');

/**
 * This set includes all validation rules defined by the GraphQL spec.
 *
 * The order of the rules in this list has been adjusted to lead to the
 * most clear output when encountering multiple validation errors.
 */


// Spec Section: "Field Selection Merging"


// Spec Section: "Variable Default Values Are Correctly Typed"


// Spec Section: "Argument Values Type Correctness"


// Spec Section: "Argument Names"


// Spec Section: "Directives Are Defined"


// Spec Section: "All Variable Used Defined"


// Spec Section: "Fragments must not form cycles"


// Spec Section: "Fragments must be used"


// Spec Section: "Fragment Name Uniqueness"


// Spec Section: "Leaf Field Selections"


// Spec Section: "Fragments on Composite Types"


// Spec Section: "Subscriptions with Single Root Field"

/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

// Spec Section: "Operation Name Uniqueness"
var specifiedRules = exports.specifiedRules = [_UniqueOperationNames.UniqueOperationNames, _LoneAnonymousOperation.LoneAnonymousOperation, _SingleFieldSubscriptions.SingleFieldSubscriptions, _KnownTypeNames.KnownTypeNames, _FragmentsOnCompositeTypes.FragmentsOnCompositeTypes, _VariablesAreInputTypes.VariablesAreInputTypes, _ScalarLeafs.ScalarLeafs, _FieldsOnCorrectType.FieldsOnCorrectType, _UniqueFragmentNames.UniqueFragmentNames, _KnownFragmentNames.KnownFragmentNames, _NoUnusedFragments.NoUnusedFragments, _PossibleFragmentSpreads.PossibleFragmentSpreads, _NoFragmentCycles.NoFragmentCycles, _UniqueVariableNames.UniqueVariableNames, _NoUndefinedVariables.NoUndefinedVariables, _NoUnusedVariables.NoUnusedVariables, _KnownDirectives.KnownDirectives, _UniqueDirectivesPerLocation.UniqueDirectivesPerLocation, _KnownArgumentNames.KnownArgumentNames, _UniqueArgumentNames.UniqueArgumentNames, _ArgumentsOfCorrectType.ArgumentsOfCorrectType, _ProvidedNonNullArguments.ProvidedNonNullArguments, _DefaultValuesOfCorrectType.DefaultValuesOfCorrectType, _VariablesInAllowedPosition.VariablesInAllowedPosition, _OverlappingFieldsCanBeMerged.OverlappingFieldsCanBeMerged, _UniqueInputFieldNames.UniqueInputFieldNames];

// Spec Section: "Input Object Field Uniqueness"


// Spec Section: "All Variable Usages Are Allowed"


// Spec Section: "Argument Optionality"


// Spec Section: "Argument Uniqueness"


// Spec Section: "Directives Are Unique Per Location"


// Spec Section: "All Variables Used"


// Spec Section: "Variable Uniqueness"


// Spec Section: "Fragment spread is possible"


// Spec Section: "Fragment spread target defined"


// Spec Section: "Field Selections on Objects, Interfaces, and Unions Types"


// Spec Section: "Variables are Input Types"


// Spec Section: "Fragment Spread Type Existence"


// Spec Section: "Lone Anonymous Operation"
},{"./rules/ArgumentsOfCorrectType":141,"./rules/DefaultValuesOfCorrectType":142,"./rules/FieldsOnCorrectType":143,"./rules/FragmentsOnCompositeTypes":144,"./rules/KnownArgumentNames":145,"./rules/KnownDirectives":146,"./rules/KnownFragmentNames":147,"./rules/KnownTypeNames":148,"./rules/LoneAnonymousOperation":149,"./rules/NoFragmentCycles":150,"./rules/NoUndefinedVariables":151,"./rules/NoUnusedFragments":152,"./rules/NoUnusedVariables":153,"./rules/OverlappingFieldsCanBeMerged":154,"./rules/PossibleFragmentSpreads":155,"./rules/ProvidedNonNullArguments":156,"./rules/ScalarLeafs":157,"./rules/SingleFieldSubscriptions":158,"./rules/UniqueArgumentNames":159,"./rules/UniqueDirectivesPerLocation":160,"./rules/UniqueFragmentNames":161,"./rules/UniqueInputFieldNames":162,"./rules/UniqueOperationNames":163,"./rules/UniqueVariableNames":164,"./rules/VariablesAreInputTypes":165,"./rules/VariablesInAllowedPosition":166}],168:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.ValidationContext = undefined;
exports.validate = validate;

var _invariant = require('../jsutils/invariant');

var _invariant2 = _interopRequireDefault(_invariant);

var _error = require('../error');

var _visitor = require('../language/visitor');

var _kinds = require('../language/kinds');

var Kind = _interopRequireWildcard(_kinds);

var _schema = require('../type/schema');

var _TypeInfo = require('../utilities/TypeInfo');

var _specifiedRules = require('./specifiedRules');

function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

/**
 * Implements the "Validation" section of the spec.
 *
 * Validation runs synchronously, returning an array of encountered errors, or
 * an empty array if no errors were encountered and the document is valid.
 *
 * A list of specific validation rules may be provided. If not provided, the
 * default list of rules defined by the GraphQL specification will be used.
 *
 * Each validation rules is a function which returns a visitor
 * (see the language/visitor API). Visitor methods are expected to return
 * GraphQLErrors, or Arrays of GraphQLErrors when invalid.
 *
 * Optionally a custom TypeInfo instance may be provided. If not provided, one
 * will be created from the provided schema.
 */
function validate(schema, ast, rules, typeInfo) {
  (0, _invariant2.default)(schema, 'Must provide schema');
  (0, _invariant2.default)(ast, 'Must provide document');
  (0, _invariant2.default)(schema instanceof _schema.GraphQLSchema, 'Schema must be an instance of GraphQLSchema. Also ensure that there are ' + 'not multiple versions of GraphQL installed in your node_modules directory.');
  return visitUsingRules(schema, typeInfo || new _TypeInfo.TypeInfo(schema), ast, rules || _specifiedRules.specifiedRules);
}

/**
 * This uses a specialized visitor which runs multiple visitors in parallel,
 * while maintaining the visitor skip and break API.
 *
 * @internal
 */
function visitUsingRules(schema, typeInfo, documentAST, rules) {
  var context = new ValidationContext(schema, documentAST, typeInfo);
  var visitors = rules.map(function (rule) {
    return rule(context);
  });
  // Visit the whole document with each instance of all provided rules.
  (0, _visitor.visit)(documentAST, (0, _visitor.visitWithTypeInfo)(typeInfo, (0, _visitor.visitInParallel)(visitors)));
  return context.getErrors();
}

/**
 * An instance of this class is passed as the "this" context to all validators,
 * allowing access to commonly useful contextual information from within a
 * validation rule.
 */
var ValidationContext = exports.ValidationContext = function () {
  function ValidationContext(schema, ast, typeInfo) {
    _classCallCheck(this, ValidationContext);

    this._schema = schema;
    this._ast = ast;
    this._typeInfo = typeInfo;
    this._errors = [];
    this._fragmentSpreads = new Map();
    this._recursivelyReferencedFragments = new Map();
    this._variableUsages = new Map();
    this._recursiveVariableUsages = new Map();
  }

  ValidationContext.prototype.reportError = function reportError(error) {
    this._errors.push(error);
  };

  ValidationContext.prototype.getErrors = function getErrors() {
    return this._errors;
  };

  ValidationContext.prototype.getSchema = function getSchema() {
    return this._schema;
  };

  ValidationContext.prototype.getDocument = function getDocument() {
    return this._ast;
  };

  ValidationContext.prototype.getFragment = function getFragment(name) {
    var fragments = this._fragments;
    if (!fragments) {
      this._fragments = fragments = this.getDocument().definitions.reduce(function (frags, statement) {
        if (statement.kind === Kind.FRAGMENT_DEFINITION) {
          frags[statement.name.value] = statement;
        }
        return frags;
      }, Object.create(null));
    }
    return fragments[name];
  };

  ValidationContext.prototype.getFragmentSpreads = function getFragmentSpreads(node) {
    var spreads = this._fragmentSpreads.get(node);
    if (!spreads) {
      spreads = [];
      var setsToVisit = [node];
      while (setsToVisit.length !== 0) {
        var set = setsToVisit.pop();
        for (var i = 0; i < set.selections.length; i++) {
          var selection = set.selections[i];
          if (selection.kind === Kind.FRAGMENT_SPREAD) {
            spreads.push(selection);
          } else if (selection.selectionSet) {
            setsToVisit.push(selection.selectionSet);
          }
        }
      }
      this._fragmentSpreads.set(node, spreads);
    }
    return spreads;
  };

  ValidationContext.prototype.getRecursivelyReferencedFragments = function getRecursivelyReferencedFragments(operation) {
    var fragments = this._recursivelyReferencedFragments.get(operation);
    if (!fragments) {
      fragments = [];
      var collectedNames = Object.create(null);
      var nodesToVisit = [operation.selectionSet];
      while (nodesToVisit.length !== 0) {
        var _node = nodesToVisit.pop();
        var spreads = this.getFragmentSpreads(_node);
        for (var i = 0; i < spreads.length; i++) {
          var fragName = spreads[i].name.value;
          if (collectedNames[fragName] !== true) {
            collectedNames[fragName] = true;
            var fragment = this.getFragment(fragName);
            if (fragment) {
              fragments.push(fragment);
              nodesToVisit.push(fragment.selectionSet);
            }
          }
        }
      }
      this._recursivelyReferencedFragments.set(operation, fragments);
    }
    return fragments;
  };

  ValidationContext.prototype.getVariableUsages = function getVariableUsages(node) {
    var usages = this._variableUsages.get(node);
    if (!usages) {
      var newUsages = [];
      var typeInfo = new _TypeInfo.TypeInfo(this._schema);
      (0, _visitor.visit)(node, (0, _visitor.visitWithTypeInfo)(typeInfo, {
        VariableDefinition: function VariableDefinition() {
          return false;
        },
        Variable: function Variable(variable) {
          newUsages.push({ node: variable, type: typeInfo.getInputType() });
        }
      }));
      usages = newUsages;
      this._variableUsages.set(node, usages);
    }
    return usages;
  };

  ValidationContext.prototype.getRecursiveVariableUsages = function getRecursiveVariableUsages(operation) {
    var usages = this._recursiveVariableUsages.get(operation);
    if (!usages) {
      usages = this.getVariableUsages(operation);
      var fragments = this.getRecursivelyReferencedFragments(operation);
      for (var i = 0; i < fragments.length; i++) {
        Array.prototype.push.apply(usages, this.getVariableUsages(fragments[i]));
      }
      this._recursiveVariableUsages.set(operation, usages);
    }
    return usages;
  };

  ValidationContext.prototype.getType = function getType() {
    return this._typeInfo.getType();
  };

  ValidationContext.prototype.getParentType = function getParentType() {
    return this._typeInfo.getParentType();
  };

  ValidationContext.prototype.getInputType = function getInputType() {
    return this._typeInfo.getInputType();
  };

  ValidationContext.prototype.getFieldDef = function getFieldDef() {
    return this._typeInfo.getFieldDef();
  };

  ValidationContext.prototype.getDirective = function getDirective() {
    return this._typeInfo.getDirective();
  };

  ValidationContext.prototype.getArgument = function getArgument() {
    return this._typeInfo.getArgument();
  };

  return ValidationContext;
}();
},{"../error":88,"../jsutils/invariant":97,"../language/kinds":105,"../language/visitor":111,"../type/schema":120,"../utilities/TypeInfo":121,"./specifiedRules":167}],169:[function(require,module,exports){
/**
 * Copyright (c) 2016, Lee Byron
 * All rights reserved.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 * @ignore
 */

/**
 * [Iterator](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Iteration_protocols#iterator)
 * is a *protocol* which describes a standard way to produce a sequence of
 * values, typically the values of the Iterable represented by this Iterator.
 *
 * While described by the [ES2015 version of JavaScript](http://www.ecma-international.org/ecma-262/6.0/#sec-iterator-interface)
 * it can be utilized by any version of JavaScript.
 *
 * @typedef {Object} Iterator
 * @template T The type of each iterated value
 * @property {function (): { value: T, done: boolean }} next
 *   A method which produces either the next value in a sequence or a result
 *   where the `done` property is `true` indicating the end of the Iterator.
 */

/**
 * [Iterable](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Iteration_protocols#iterable)
 * is a *protocol* which when implemented allows a JavaScript object to define
 * their iteration behavior, such as what values are looped over in a `for..of`
 * loop or `iterall`'s `forEach` function. Many [built-in types](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Iteration_protocols#Builtin_iterables)
 * implement the Iterable protocol, including `Array` and `Map`.
 *
 * While described by the [ES2015 version of JavaScript](http://www.ecma-international.org/ecma-262/6.0/#sec-iterable-interface)
 * it can be utilized by any version of JavaScript.
 *
 * @typedef {Object} Iterable
 * @template T The type of each iterated value
 * @property {function (): Iterator<T>} Symbol.iterator
 *   A method which produces an Iterator for this Iterable.
 */

// In ES2015 (or a polyfilled) environment, this will be Symbol.iterator
var SYMBOL_ITERATOR = typeof Symbol === 'function' && Symbol.iterator

/**
 * A property name to be used as the name of an Iterable's method responsible
 * for producing an Iterator, referred to as `@@iterator`. Typically represents
 * the value `Symbol.iterator` but falls back to the string `"@@iterator"` when
 * `Symbol.iterator` is not defined.
 *
 * Use `$$iterator` for defining new Iterables instead of `Symbol.iterator`,
 * but do not use it for accessing existing Iterables, instead use
 * `getIterator()` or `isIterable()`.
 *
 * @example
 *
 * var $$iterator = require('iterall').$$iterator
 *
 * function Counter (to) {
 *   this.to = to
 * }
 *
 * Counter.prototype[$$iterator] = function () {
 *   return {
 *     to: this.to,
 *     num: 0,
 *     next () {
 *       if (this.num >= this.to) {
 *         return { value: undefined, done: true }
 *       }
 *       return { value: this.num++, done: false }
 *     }
 *   }
 * }
 *
 * var counter = new Counter(3)
 * for (var number of counter) {
 *   console.log(number) // 0 ... 1 ... 2
 * }
 *
 * @type {Symbol|string}
 */
var $$iterator = SYMBOL_ITERATOR || '@@iterator'
exports.$$iterator = $$iterator

/**
 * Returns true if the provided object implements the Iterator protocol via
 * either implementing a `Symbol.iterator` or `"@@iterator"` method.
 *
 * @example
 *
 * var isIterable = require('iterall').isIterable
 * isIterable([ 1, 2, 3 ]) // true
 * isIterable('ABC') // true
 * isIterable({ length: 1, 0: 'Alpha' }) // false
 * isIterable({ key: 'value' }) // false
 * isIterable(new Map()) // true
 *
 * @param obj
 *   A value which might implement the Iterable protocol.
 * @return {boolean} true if Iterable.
 */
function isIterable(obj) {
  return !!getIteratorMethod(obj)
}
exports.isIterable = isIterable

/**
 * Returns true if the provided object implements the Array-like protocol via
 * defining a positive-integer `length` property.
 *
 * @example
 *
 * var isArrayLike = require('iterall').isArrayLike
 * isArrayLike([ 1, 2, 3 ]) // true
 * isArrayLike('ABC') // true
 * isArrayLike({ length: 1, 0: 'Alpha' }) // true
 * isArrayLike({ key: 'value' }) // false
 * isArrayLike(new Map()) // false
 *
 * @param obj
 *   A value which might implement the Array-like protocol.
 * @return {boolean} true if Array-like.
 */
function isArrayLike(obj) {
  var length = obj != null && obj.length
  return typeof length === 'number' && length >= 0 && length % 1 === 0
}
exports.isArrayLike = isArrayLike

/**
 * Returns true if the provided object is an Object (i.e. not a string literal)
 * and is either Iterable or Array-like.
 *
 * This may be used in place of [Array.isArray()][isArray] to determine if an
 * object should be iterated-over. It always excludes string literals and
 * includes Arrays (regardless of if it is Iterable). It also includes other
 * Array-like objects such as NodeList, TypedArray, and Buffer.
 *
 * @example
 *
 * var isCollection = require('iterall').isCollection
 * isCollection([ 1, 2, 3 ]) // true
 * isCollection('ABC') // false
 * isCollection({ length: 1, 0: 'Alpha' }) // true
 * isCollection({ key: 'value' }) // false
 * isCollection(new Map()) // true
 *
 * @example
 *
 * var forEach = require('iterall').forEach
 * if (isCollection(obj)) {
 *   forEach(obj, function (value) {
 *     console.log(value)
 *   })
 * }
 *
 * @param obj
 *   An Object value which might implement the Iterable or Array-like protocols.
 * @return {boolean} true if Iterable or Array-like Object.
 */
function isCollection(obj) {
  return Object(obj) === obj && (isArrayLike(obj) || isIterable(obj))
}
exports.isCollection = isCollection

/**
 * If the provided object implements the Iterator protocol, its Iterator object
 * is returned. Otherwise returns undefined.
 *
 * @example
 *
 * var getIterator = require('iterall').getIterator
 * var iterator = getIterator([ 1, 2, 3 ])
 * iterator.next() // { value: 1, done: false }
 * iterator.next() // { value: 2, done: false }
 * iterator.next() // { value: 3, done: false }
 * iterator.next() // { value: undefined, done: true }
 *
 * @template T the type of each iterated value
 * @param {Iterable<T>} iterable
 *   An Iterable object which is the source of an Iterator.
 * @return {Iterator<T>} new Iterator instance.
 */
function getIterator(iterable) {
  var method = getIteratorMethod(iterable)
  if (method) {
    return method.call(iterable)
  }
}
exports.getIterator = getIterator

/**
 * If the provided object implements the Iterator protocol, the method
 * responsible for producing its Iterator object is returned.
 *
 * This is used in rare cases for performance tuning. This method must be called
 * with obj as the contextual this-argument.
 *
 * @example
 *
 * var getIteratorMethod = require('iterall').getIteratorMethod
 * var myArray = [ 1, 2, 3 ]
 * var method = getIteratorMethod(myArray)
 * if (method) {
 *   var iterator = method.call(myArray)
 * }
 *
 * @template T the type of each iterated value
 * @param {Iterable<T>} iterable
 *   An Iterable object which defines an `@@iterator` method.
 * @return {function(): Iterator<T>} `@@iterator` method.
 */
function getIteratorMethod(iterable) {
  if (iterable != null) {
    var method =
      (SYMBOL_ITERATOR && iterable[SYMBOL_ITERATOR]) || iterable['@@iterator']
    if (typeof method === 'function') {
      return method
    }
  }
}
exports.getIteratorMethod = getIteratorMethod

/**
 * Similar to `getIterator()`, this method returns a new Iterator given an
 * Iterable. However it will also create an Iterator for a non-Iterable
 * Array-like collection, such as Array in a non-ES2015 environment.
 *
 * `createIterator` is complimentary to `forEach`, but allows a "pull"-based
 * iteration as opposed to `forEach`'s "push"-based iteration.
 *
 * `createIterator` produces an Iterator for Array-likes with the same behavior
 * as ArrayIteratorPrototype described in the ECMAScript specification, and
 * does *not* skip over "holes".
 *
 * @example
 *
 * var createIterator = require('iterall').createIterator
 *
 * var myArraylike = { length: 3, 0: 'Alpha', 1: 'Bravo', 2: 'Charlie' }
 * var iterator = createIterator(myArraylike)
 * iterator.next() // { value: 'Alpha', done: false }
 * iterator.next() // { value: 'Bravo', done: false }
 * iterator.next() // { value: 'Charlie', done: false }
 * iterator.next() // { value: undefined, done: true }
 *
 * @template T the type of each iterated value
 * @param {Iterable<T>|{ length: number }} collection
 *   An Iterable or Array-like object to produce an Iterator.
 * @return {Iterator<T>} new Iterator instance.
 */
function createIterator(collection) {
  if (collection != null) {
    var iterator = getIterator(collection)
    if (iterator) {
      return iterator
    }
    if (isArrayLike(collection)) {
      return new ArrayLikeIterator(collection)
    }
  }
}
exports.createIterator = createIterator

// When the object provided to `createIterator` is not Iterable but is
// Array-like, this simple Iterator is created.
function ArrayLikeIterator(obj) {
  this._o = obj
  this._i = 0
}

// Note: all Iterators are themselves Iterable.
ArrayLikeIterator.prototype[$$iterator] = function() {
  return this
}

// A simple state-machine determines the IteratorResult returned, yielding
// each value in the Array-like object in order of their indices.
ArrayLikeIterator.prototype.next = function() {
  if (this._o === void 0 || this._i >= this._o.length) {
    this._o = void 0
    return { value: void 0, done: true }
  }
  return { value: this._o[this._i++], done: false }
}

/**
 * Given an object which either implements the Iterable protocol or is
 * Array-like, iterate over it, calling the `callback` at each iteration.
 *
 * Use `forEach` where you would expect to use a `for ... of` loop in ES6.
 * However `forEach` adheres to the behavior of [Array#forEach][] described in
 * the ECMAScript specification, skipping over "holes" in Array-likes. It will
 * also delegate to a `forEach` method on `collection` if one is defined,
 * ensuring native performance for `Arrays`.
 *
 * Similar to [Array#forEach][], the `callback` function accepts three
 * arguments, and is provided with `thisArg` as the calling context.
 *
 * Note: providing an infinite Iterator to forEach will produce an error.
 *
 * [Array#forEach]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/forEach
 *
 * @example
 *
 * var forEach = require('iterall').forEach
 *
 * forEach(myIterable, function (value, index, iterable) {
 *   console.log(value, index, iterable === myIterable)
 * })
 *
 * @example
 *
 * // ES6:
 * for (let value of myIterable) {
 *   console.log(value)
 * }
 *
 * // Any JavaScript environment:
 * forEach(myIterable, function (value) {
 *   console.log(value)
 * })
 *
 * @template T the type of each iterated value
 * @param {Iterable<T>|{ length: number }} collection
 *   The Iterable or array to iterate over.
 * @param {function(T, number, object)} callback
 *   Function to execute for each iteration, taking up to three arguments
 * @param [thisArg]
 *   Optional. Value to use as `this` when executing `callback`.
 */
function forEach(collection, callback, thisArg) {
  if (collection != null) {
    if (typeof collection.forEach === 'function') {
      return collection.forEach(callback, thisArg)
    }
    var i = 0
    var iterator = getIterator(collection)
    if (iterator) {
      var step
      while (!(step = iterator.next()).done) {
        callback.call(thisArg, step.value, i++, collection)
        // Infinite Iterators could cause forEach to run forever.
        // After a very large number of iterations, produce an error.
        /* istanbul ignore if */
        if (i > 9999999) {
          throw new TypeError('Near-infinite iteration.')
        }
      }
    } else if (isArrayLike(collection)) {
      for (; i < collection.length; i++) {
        if (collection.hasOwnProperty(i)) {
          callback.call(thisArg, collection[i], i, collection)
        }
      }
    }
  }
}
exports.forEach = forEach

/////////////////////////////////////////////////////
//                                                 //
//                 ASYNC ITERATORS                 //
//                                                 //
/////////////////////////////////////////////////////

/**
 * [AsyncIterator](https://tc39.github.io/proposal-async-iteration/)
 * is a *protocol* which describes a standard way to produce and consume an
 * asynchronous sequence of values, typically the values of the AsyncIterable
 * represented by this AsyncIterator.
 *
 * AsyncIterator is similar to Observable or Stream.
 *
 * While described as a proposed addition to the [ES2017 version of JavaScript](https://tc39.github.io/proposal-async-iteration/)
 * it can be utilized by any version of JavaScript.
 *
 * @typedef {Object} AsyncIterator
 * @template T The type of each iterated value
 * @property {function (): Promise<{ value: T, done: boolean }>} next
 *   A method which produces a Promise which resolves to either the next value
 *   in a sequence or a result where the `done` property is `true` indicating
 *   the end of the sequence of values. It may also produce a Promise which
 *   becomes rejected, indicating a failure.
 */

/**
 * AsyncIterable is a *protocol* which when implemented allows a JavaScript
 * object to define their asynchronous iteration behavior, such as what values
 * are looped over in a `for-await-of` loop or `iterall`'s `forAwaitEach`
 * function.
 *
 * While described as a proposed addition to the [ES2017 version of JavaScript](https://tc39.github.io/proposal-async-iteration/)
 * it can be utilized by any version of JavaScript.
 *
 * @typedef {Object} AsyncIterable
 * @template T The type of each iterated value
 * @property {function (): AsyncIterator<T>} Symbol.asyncIterator
 *   A method which produces an AsyncIterator for this AsyncIterable.
 */

// In ES2017 (or a polyfilled) environment, this will be Symbol.asyncIterator
var SYMBOL_ASYNC_ITERATOR = typeof Symbol === 'function' && Symbol.asyncIterator

/**
 * A property name to be used as the name of an AsyncIterable's method
 * responsible for producing an Iterator, referred to as `@@asyncIterator`.
 * Typically represents the value `Symbol.asyncIterator` but falls back to the
 * string `"@@asyncIterator"` when `Symbol.asyncIterator` is not defined.
 *
 * Use `$$asyncIterator` for defining new AsyncIterables instead of
 * `Symbol.asyncIterator`, but do not use it for accessing existing Iterables,
 * instead use `getAsyncIterator()` or `isAsyncIterable()`.
 *
 * @example
 *
 * var $$asyncIterator = require('iterall').$$asyncIterator
 *
 * function Chirper (to) {
 *   this.to = to
 * }
 *
 * Chirper.prototype[$$asyncIterator] = function () {
 *   return {
 *     to: this.to,
 *     num: 0,
 *     next () {
 *       return new Promise(function (resolve) {
 *         if (this.num >= this.to) {
 *           resolve({ value: undefined, done: true })
 *         } else {
 *           setTimeout(function () {
 *             resolve({ value: this.num++, done: false })
 *           }, 1000)
 *         }
 *       }
 *     }
 *   }
 * }
 *
 * var chirper = new Chirper(3)
 * for await (var number of chirper) {
 *   console.log(number) // 0 ...wait... 1 ...wait... 2
 * }
 *
 * @type {Symbol|string}
 */
var $$asyncIterator = SYMBOL_ASYNC_ITERATOR || '@@asyncIterator'
exports.$$asyncIterator = $$asyncIterator

/**
 * Returns true if the provided object implements the AsyncIterator protocol via
 * either implementing a `Symbol.asyncIterator` or `"@@asyncIterator"` method.
 *
 * @example
 *
 * var isAsyncIterable = require('iterall').isAsyncIterable
 * isAsyncIterable(myStream) // true
 * isAsyncIterable('ABC') // false
 *
 * @param obj
 *   A value which might implement the AsyncIterable protocol.
 * @return {boolean} true if AsyncIterable.
 */
function isAsyncIterable(obj) {
  return !!getAsyncIteratorMethod(obj)
}
exports.isAsyncIterable = isAsyncIterable

/**
 * If the provided object implements the AsyncIterator protocol, its
 * AsyncIterator object is returned. Otherwise returns undefined.
 *
 * @example
 *
 * var getAsyncIterator = require('iterall').getAsyncIterator
 * var asyncIterator = getAsyncIterator(myStream)
 * asyncIterator.next().then(console.log) // { value: 1, done: false }
 * asyncIterator.next().then(console.log) // { value: 2, done: false }
 * asyncIterator.next().then(console.log) // { value: 3, done: false }
 * asyncIterator.next().then(console.log) // { value: undefined, done: true }
 *
 * @template T the type of each iterated value
 * @param {AsyncIterable<T>} asyncIterable
 *   An AsyncIterable object which is the source of an AsyncIterator.
 * @return {AsyncIterator<T>} new AsyncIterator instance.
 */
function getAsyncIterator(asyncIterable) {
  var method = getAsyncIteratorMethod(asyncIterable)
  if (method) {
    return method.call(asyncIterable)
  }
}
exports.getAsyncIterator = getAsyncIterator

/**
 * If the provided object implements the AsyncIterator protocol, the method
 * responsible for producing its AsyncIterator object is returned.
 *
 * This is used in rare cases for performance tuning. This method must be called
 * with obj as the contextual this-argument.
 *
 * @example
 *
 * var getAsyncIteratorMethod = require('iterall').getAsyncIteratorMethod
 * var method = getAsyncIteratorMethod(myStream)
 * if (method) {
 *   var asyncIterator = method.call(myStream)
 * }
 *
 * @template T the type of each iterated value
 * @param {AsyncIterable<T>} asyncIterable
 *   An AsyncIterable object which defines an `@@asyncIterator` method.
 * @return {function(): AsyncIterator<T>} `@@asyncIterator` method.
 */
function getAsyncIteratorMethod(asyncIterable) {
  if (asyncIterable != null) {
    var method =
      (SYMBOL_ASYNC_ITERATOR && asyncIterable[SYMBOL_ASYNC_ITERATOR]) ||
      asyncIterable['@@asyncIterator']
    if (typeof method === 'function') {
      return method
    }
  }
}
exports.getAsyncIteratorMethod = getAsyncIteratorMethod

/**
 * Similar to `getAsyncIterator()`, this method returns a new AsyncIterator
 * given an AsyncIterable. However it will also create an AsyncIterator for a
 * non-async Iterable as well as non-Iterable Array-like collection, such as
 * Array in a pre-ES2015 environment.
 *
 * `createAsyncIterator` is complimentary to `forAwaitEach`, but allows a
 * buffering "pull"-based iteration as opposed to `forAwaitEach`'s
 * "push"-based iteration.
 *
 * `createAsyncIterator` produces an AsyncIterator for non-async Iterables as
 * described in the ECMAScript proposal [Async-from-Sync Iterator Objects](https://tc39.github.io/proposal-async-iteration/#sec-async-from-sync-iterator-objects).
 *
 * > Note: Creating `AsyncIterator`s requires the existence of `Promise`.
 * > While `Promise` has been available in modern browsers for a number of
 * > years, legacy browsers (like IE 11) may require a polyfill.
 *
 * @example
 *
 * var createAsyncIterator = require('iterall').createAsyncIterator
 *
 * var myArraylike = { length: 3, 0: 'Alpha', 1: 'Bravo', 2: 'Charlie' }
 * var iterator = createAsyncIterator(myArraylike)
 * iterator.next().then(console.log) // { value: 'Alpha', done: false }
 * iterator.next().then(console.log) // { value: 'Bravo', done: false }
 * iterator.next().then(console.log) // { value: 'Charlie', done: false }
 * iterator.next().then(console.log) // { value: undefined, done: true }
 *
 * @template T the type of each iterated value
 * @param {AsyncIterable<T>|Iterable<T>|{ length: number }} source
 *   An AsyncIterable, Iterable, or Array-like object to produce an Iterator.
 * @return {AsyncIterator<T>} new AsyncIterator instance.
 */
function createAsyncIterator(source) {
  if (source != null) {
    var asyncIterator = getAsyncIterator(source)
    if (asyncIterator) {
      return asyncIterator
    }
    var iterator = createIterator(source)
    if (iterator) {
      return new AsyncFromSyncIterator(iterator)
    }
  }
}
exports.createAsyncIterator = createAsyncIterator

// When the object provided to `createAsyncIterator` is not AsyncIterable but is
// sync Iterable, this simple wrapper is created.
function AsyncFromSyncIterator(iterator) {
  this._i = iterator
}

// Note: all AsyncIterators are themselves AsyncIterable.
AsyncFromSyncIterator.prototype[$$asyncIterator] = function() {
  return this
}

// A simple state-machine determines the IteratorResult returned, yielding
// each value in the Array-like object in order of their indices.
AsyncFromSyncIterator.prototype.next = function() {
  var step = this._i.next()
  return Promise.resolve(step.value).then(function(value) {
    return { value: value, done: step.done }
  })
}

/**
 * Given an object which either implements the AsyncIterable protocol or is
 * Array-like, iterate over it, calling the `callback` at each iteration.
 *
 * Use `forAwaitEach` where you would expect to use a `for-await-of` loop.
 *
 * Similar to [Array#forEach][], the `callback` function accepts three
 * arguments, and is provided with `thisArg` as the calling context.
 *
 * > Note: Using `forAwaitEach` requires the existence of `Promise`.
 * > While `Promise` has been available in modern browsers for a number of
 * > years, legacy browsers (like IE 11) may require a polyfill.
 *
 * @example
 *
 * var forAwaitEach = require('iterall').forAwaitEach
 *
 * forAwaitEach(myIterable, function (value, index, iterable) {
 *   console.log(value, index, iterable === myIterable)
 * })
 *
 * @example
 *
 * // ES2017:
 * for await (let value of myAsyncIterable) {
 *   console.log(await doSomethingAsync(value))
 * }
 * console.log('done')
 *
 * // Any JavaScript environment:
 * forAwaitEach(myAsyncIterable, function (value) {
 *   return doSomethingAsync(value).then(console.log)
 * }).then(function () {
 *   console.log('done')
 * })
 *
 * @template T the type of each iterated value
 * @param {AsyncIterable<T>|Iterable<Promise<T> | T>|{ length: number }} source
 *   The AsyncIterable or array to iterate over.
 * @param {function(T, number, object)} callback
 *   Function to execute for each iteration, taking up to three arguments
 * @param [thisArg]
 *   Optional. Value to use as `this` when executing `callback`.
 */
function forAwaitEach(source, callback, thisArg) {
  var asyncIterator = createAsyncIterator(source)
  if (asyncIterator) {
    var i = 0
    function next() {
      return asyncIterator.next().then(function(step) {
        if (!step.done) {
          return Promise.resolve(
            callback.call(thisArg, step.value, i++, source)
          ).then(next)
        }
      })
    }
    return next()
  }
}
exports.forAwaitEach = forAwaitEach

},{}],170:[function(require,module,exports){
'use strict';


////////////////////////////////////////////////////////////////////////////////
// Helpers

// Merge objects
//
function assign(obj /*from1, from2, from3, ...*/) {
  var sources = Array.prototype.slice.call(arguments, 1);

  sources.forEach(function (source) {
    if (!source) { return; }

    Object.keys(source).forEach(function (key) {
      obj[key] = source[key];
    });
  });

  return obj;
}

function _class(obj) { return Object.prototype.toString.call(obj); }
function isString(obj) { return _class(obj) === '[object String]'; }
function isObject(obj) { return _class(obj) === '[object Object]'; }
function isRegExp(obj) { return _class(obj) === '[object RegExp]'; }
function isFunction(obj) { return _class(obj) === '[object Function]'; }


function escapeRE(str) { return str.replace(/[.?*+^$[\]\\(){}|-]/g, '\\$&'); }

////////////////////////////////////////////////////////////////////////////////


var defaultOptions = {
  fuzzyLink: true,
  fuzzyEmail: true,
  fuzzyIP: false
};


function isOptionsObj(obj) {
  return Object.keys(obj || {}).reduce(function (acc, k) {
    return acc || defaultOptions.hasOwnProperty(k);
  }, false);
}


var defaultSchemas = {
  'http:': {
    validate: function (text, pos, self) {
      var tail = text.slice(pos);

      if (!self.re.http) {
        // compile lazily, because "host"-containing variables can change on tlds update.
        self.re.http =  new RegExp(
          '^\\/\\/' + self.re.src_auth + self.re.src_host_port_strict + self.re.src_path, 'i'
        );
      }
      if (self.re.http.test(tail)) {
        return tail.match(self.re.http)[0].length;
      }
      return 0;
    }
  },
  'https:':  'http:',
  'ftp:':    'http:',
  '//':      {
    validate: function (text, pos, self) {
      var tail = text.slice(pos);

      if (!self.re.no_http) {
      // compile lazily, because "host"-containing variables can change on tlds update.
        self.re.no_http =  new RegExp(
          '^' +
          self.re.src_auth +
          // Don't allow single-level domains, because of false positives like '//test'
          // with code comments
          '(?:localhost|(?:(?:' + self.re.src_domain + ')\\.)+' + self.re.src_domain_root + ')' +
          self.re.src_port +
          self.re.src_host_terminator +
          self.re.src_path,

          'i'
        );
      }

      if (self.re.no_http.test(tail)) {
        // should not be `://` & `///`, that protects from errors in protocol name
        if (pos >= 3 && text[pos - 3] === ':') { return 0; }
        if (pos >= 3 && text[pos - 3] === '/') { return 0; }
        return tail.match(self.re.no_http)[0].length;
      }
      return 0;
    }
  },
  'mailto:': {
    validate: function (text, pos, self) {
      var tail = text.slice(pos);

      if (!self.re.mailto) {
        self.re.mailto =  new RegExp(
          '^' + self.re.src_email_name + '@' + self.re.src_host_strict, 'i'
        );
      }
      if (self.re.mailto.test(tail)) {
        return tail.match(self.re.mailto)[0].length;
      }
      return 0;
    }
  }
};

/*eslint-disable max-len*/

// RE pattern for 2-character tlds (autogenerated by ./support/tlds_2char_gen.js)
var tlds_2ch_src_re = 'a[cdefgilmnoqrstuwxz]|b[abdefghijmnorstvwyz]|c[acdfghiklmnoruvwxyz]|d[ejkmoz]|e[cegrstu]|f[ijkmor]|g[abdefghilmnpqrstuwy]|h[kmnrtu]|i[delmnoqrst]|j[emop]|k[eghimnprwyz]|l[abcikrstuvy]|m[acdeghklmnopqrstuvwxyz]|n[acefgilopruz]|om|p[aefghklmnrstwy]|qa|r[eosuw]|s[abcdeghijklmnortuvxyz]|t[cdfghjklmnortvwz]|u[agksyz]|v[aceginu]|w[fs]|y[et]|z[amw]';

// DON'T try to make PRs with changes. Extend TLDs with LinkifyIt.tlds() instead
var tlds_default = 'biz|com|edu|gov|net|org|pro|web|xxx|aero|asia|coop|info|museum|name|shop|рф'.split('|');

/*eslint-enable max-len*/

////////////////////////////////////////////////////////////////////////////////

function resetScanCache(self) {
  self.__index__ = -1;
  self.__text_cache__   = '';
}

function createValidator(re) {
  return function (text, pos) {
    var tail = text.slice(pos);

    if (re.test(tail)) {
      return tail.match(re)[0].length;
    }
    return 0;
  };
}

function createNormalizer() {
  return function (match, self) {
    self.normalize(match);
  };
}

// Schemas compiler. Build regexps.
//
function compile(self) {

  // Load & clone RE patterns.
  var re = self.re = require('./lib/re')(self.__opts__);

  // Define dynamic patterns
  var tlds = self.__tlds__.slice();

  self.onCompile();

  if (!self.__tlds_replaced__) {
    tlds.push(tlds_2ch_src_re);
  }
  tlds.push(re.src_xn);

  re.src_tlds = tlds.join('|');

  function untpl(tpl) { return tpl.replace('%TLDS%', re.src_tlds); }

  re.email_fuzzy      = RegExp(untpl(re.tpl_email_fuzzy), 'i');
  re.link_fuzzy       = RegExp(untpl(re.tpl_link_fuzzy), 'i');
  re.link_no_ip_fuzzy = RegExp(untpl(re.tpl_link_no_ip_fuzzy), 'i');
  re.host_fuzzy_test  = RegExp(untpl(re.tpl_host_fuzzy_test), 'i');

  //
  // Compile each schema
  //

  var aliases = [];

  self.__compiled__ = {}; // Reset compiled data

  function schemaError(name, val) {
    throw new Error('(LinkifyIt) Invalid schema "' + name + '": ' + val);
  }

  Object.keys(self.__schemas__).forEach(function (name) {
    var val = self.__schemas__[name];

    // skip disabled methods
    if (val === null) { return; }

    var compiled = { validate: null, link: null };

    self.__compiled__[name] = compiled;

    if (isObject(val)) {
      if (isRegExp(val.validate)) {
        compiled.validate = createValidator(val.validate);
      } else if (isFunction(val.validate)) {
        compiled.validate = val.validate;
      } else {
        schemaError(name, val);
      }

      if (isFunction(val.normalize)) {
        compiled.normalize = val.normalize;
      } else if (!val.normalize) {
        compiled.normalize = createNormalizer();
      } else {
        schemaError(name, val);
      }

      return;
    }

    if (isString(val)) {
      aliases.push(name);
      return;
    }

    schemaError(name, val);
  });

  //
  // Compile postponed aliases
  //

  aliases.forEach(function (alias) {
    if (!self.__compiled__[self.__schemas__[alias]]) {
      // Silently fail on missed schemas to avoid errons on disable.
      // schemaError(alias, self.__schemas__[alias]);
      return;
    }

    self.__compiled__[alias].validate =
      self.__compiled__[self.__schemas__[alias]].validate;
    self.__compiled__[alias].normalize =
      self.__compiled__[self.__schemas__[alias]].normalize;
  });

  //
  // Fake record for guessed links
  //
  self.__compiled__[''] = { validate: null, normalize: createNormalizer() };

  //
  // Build schema condition
  //
  var slist = Object.keys(self.__compiled__)
                      .filter(function (name) {
                        // Filter disabled & fake schemas
                        return name.length > 0 && self.__compiled__[name];
                      })
                      .map(escapeRE)
                      .join('|');
  // (?!_) cause 1.5x slowdown
  self.re.schema_test   = RegExp('(^|(?!_)(?:[><\uff5c]|' + re.src_ZPCc + '))(' + slist + ')', 'i');
  self.re.schema_search = RegExp('(^|(?!_)(?:[><\uff5c]|' + re.src_ZPCc + '))(' + slist + ')', 'ig');

  self.re.pretest       = RegExp(
                            '(' + self.re.schema_test.source + ')|' +
                            '(' + self.re.host_fuzzy_test.source + ')|' +
                            '@',
                            'i');

  //
  // Cleanup
  //

  resetScanCache(self);
}

/**
 * class Match
 *
 * Match result. Single element of array, returned by [[LinkifyIt#match]]
 **/
function Match(self, shift) {
  var start = self.__index__,
      end   = self.__last_index__,
      text  = self.__text_cache__.slice(start, end);

  /**
   * Match#schema -> String
   *
   * Prefix (protocol) for matched string.
   **/
  this.schema    = self.__schema__.toLowerCase();
  /**
   * Match#index -> Number
   *
   * First position of matched string.
   **/
  this.index     = start + shift;
  /**
   * Match#lastIndex -> Number
   *
   * Next position after matched string.
   **/
  this.lastIndex = end + shift;
  /**
   * Match#raw -> String
   *
   * Matched string.
   **/
  this.raw       = text;
  /**
   * Match#text -> String
   *
   * Normalized text of matched string.
   **/
  this.text      = text;
  /**
   * Match#url -> String
   *
   * Normalized url of matched string.
   **/
  this.url       = text;
}

function createMatch(self, shift) {
  var match = new Match(self, shift);

  self.__compiled__[match.schema].normalize(match, self);

  return match;
}


/**
 * class LinkifyIt
 **/

/**
 * new LinkifyIt(schemas, options)
 * - schemas (Object): Optional. Additional schemas to validate (prefix/validator)
 * - options (Object): { fuzzyLink|fuzzyEmail|fuzzyIP: true|false }
 *
 * Creates new linkifier instance with optional additional schemas.
 * Can be called without `new` keyword for convenience.
 *
 * By default understands:
 *
 * - `http(s)://...` , `ftp://...`, `mailto:...` & `//...` links
 * - "fuzzy" links and emails (example.com, foo@bar.com).
 *
 * `schemas` is an object, where each key/value describes protocol/rule:
 *
 * - __key__ - link prefix (usually, protocol name with `:` at the end, `skype:`
 *   for example). `linkify-it` makes shure that prefix is not preceded with
 *   alphanumeric char and symbols. Only whitespaces and punctuation allowed.
 * - __value__ - rule to check tail after link prefix
 *   - _String_ - just alias to existing rule
 *   - _Object_
 *     - _validate_ - validator function (should return matched length on success),
 *       or `RegExp`.
 *     - _normalize_ - optional function to normalize text & url of matched result
 *       (for example, for @twitter mentions).
 *
 * `options`:
 *
 * - __fuzzyLink__ - recognige URL-s without `http(s):` prefix. Default `true`.
 * - __fuzzyIP__ - allow IPs in fuzzy links above. Can conflict with some texts
 *   like version numbers. Default `false`.
 * - __fuzzyEmail__ - recognize emails without `mailto:` prefix.
 *
 **/
function LinkifyIt(schemas, options) {
  if (!(this instanceof LinkifyIt)) {
    return new LinkifyIt(schemas, options);
  }

  if (!options) {
    if (isOptionsObj(schemas)) {
      options = schemas;
      schemas = {};
    }
  }

  this.__opts__           = assign({}, defaultOptions, options);

  // Cache last tested result. Used to skip repeating steps on next `match` call.
  this.__index__          = -1;
  this.__last_index__     = -1; // Next scan position
  this.__schema__         = '';
  this.__text_cache__     = '';

  this.__schemas__        = assign({}, defaultSchemas, schemas);
  this.__compiled__       = {};

  this.__tlds__           = tlds_default;
  this.__tlds_replaced__  = false;

  this.re = {};

  compile(this);
}


/** chainable
 * LinkifyIt#add(schema, definition)
 * - schema (String): rule name (fixed pattern prefix)
 * - definition (String|RegExp|Object): schema definition
 *
 * Add new rule definition. See constructor description for details.
 **/
LinkifyIt.prototype.add = function add(schema, definition) {
  this.__schemas__[schema] = definition;
  compile(this);
  return this;
};


/** chainable
 * LinkifyIt#set(options)
 * - options (Object): { fuzzyLink|fuzzyEmail|fuzzyIP: true|false }
 *
 * Set recognition options for links without schema.
 **/
LinkifyIt.prototype.set = function set(options) {
  this.__opts__ = assign(this.__opts__, options);
  return this;
};


/**
 * LinkifyIt#test(text) -> Boolean
 *
 * Searches linkifiable pattern and returns `true` on success or `false` on fail.
 **/
LinkifyIt.prototype.test = function test(text) {
  // Reset scan cache
  this.__text_cache__ = text;
  this.__index__      = -1;

  if (!text.length) { return false; }

  var m, ml, me, len, shift, next, re, tld_pos, at_pos;

  // try to scan for link with schema - that's the most simple rule
  if (this.re.schema_test.test(text)) {
    re = this.re.schema_search;
    re.lastIndex = 0;
    while ((m = re.exec(text)) !== null) {
      len = this.testSchemaAt(text, m[2], re.lastIndex);
      if (len) {
        this.__schema__     = m[2];
        this.__index__      = m.index + m[1].length;
        this.__last_index__ = m.index + m[0].length + len;
        break;
      }
    }
  }

  if (this.__opts__.fuzzyLink && this.__compiled__['http:']) {
    // guess schemaless links
    tld_pos = text.search(this.re.host_fuzzy_test);
    if (tld_pos >= 0) {
      // if tld is located after found link - no need to check fuzzy pattern
      if (this.__index__ < 0 || tld_pos < this.__index__) {
        if ((ml = text.match(this.__opts__.fuzzyIP ? this.re.link_fuzzy : this.re.link_no_ip_fuzzy)) !== null) {

          shift = ml.index + ml[1].length;

          if (this.__index__ < 0 || shift < this.__index__) {
            this.__schema__     = '';
            this.__index__      = shift;
            this.__last_index__ = ml.index + ml[0].length;
          }
        }
      }
    }
  }

  if (this.__opts__.fuzzyEmail && this.__compiled__['mailto:']) {
    // guess schemaless emails
    at_pos = text.indexOf('@');
    if (at_pos >= 0) {
      // We can't skip this check, because this cases are possible:
      // 192.168.1.1@gmail.com, my.in@example.com
      if ((me = text.match(this.re.email_fuzzy)) !== null) {

        shift = me.index + me[1].length;
        next  = me.index + me[0].length;

        if (this.__index__ < 0 || shift < this.__index__ ||
            (shift === this.__index__ && next > this.__last_index__)) {
          this.__schema__     = 'mailto:';
          this.__index__      = shift;
          this.__last_index__ = next;
        }
      }
    }
  }

  return this.__index__ >= 0;
};


/**
 * LinkifyIt#pretest(text) -> Boolean
 *
 * Very quick check, that can give false positives. Returns true if link MAY BE
 * can exists. Can be used for speed optimization, when you need to check that
 * link NOT exists.
 **/
LinkifyIt.prototype.pretest = function pretest(text) {
  return this.re.pretest.test(text);
};


/**
 * LinkifyIt#testSchemaAt(text, name, position) -> Number
 * - text (String): text to scan
 * - name (String): rule (schema) name
 * - position (Number): text offset to check from
 *
 * Similar to [[LinkifyIt#test]] but checks only specific protocol tail exactly
 * at given position. Returns length of found pattern (0 on fail).
 **/
LinkifyIt.prototype.testSchemaAt = function testSchemaAt(text, schema, pos) {
  // If not supported schema check requested - terminate
  if (!this.__compiled__[schema.toLowerCase()]) {
    return 0;
  }
  return this.__compiled__[schema.toLowerCase()].validate(text, pos, this);
};


/**
 * LinkifyIt#match(text) -> Array|null
 *
 * Returns array of found link descriptions or `null` on fail. We strongly
 * recommend to use [[LinkifyIt#test]] first, for best speed.
 *
 * ##### Result match description
 *
 * - __schema__ - link schema, can be empty for fuzzy links, or `//` for
 *   protocol-neutral  links.
 * - __index__ - offset of matched text
 * - __lastIndex__ - index of next char after mathch end
 * - __raw__ - matched text
 * - __text__ - normalized text
 * - __url__ - link, generated from matched text
 **/
LinkifyIt.prototype.match = function match(text) {
  var shift = 0, result = [];

  // Try to take previous element from cache, if .test() called before
  if (this.__index__ >= 0 && this.__text_cache__ === text) {
    result.push(createMatch(this, shift));
    shift = this.__last_index__;
  }

  // Cut head if cache was used
  var tail = shift ? text.slice(shift) : text;

  // Scan string until end reached
  while (this.test(tail)) {
    result.push(createMatch(this, shift));

    tail = tail.slice(this.__last_index__);
    shift += this.__last_index__;
  }

  if (result.length) {
    return result;
  }

  return null;
};


/** chainable
 * LinkifyIt#tlds(list [, keepOld]) -> this
 * - list (Array): list of tlds
 * - keepOld (Boolean): merge with current list if `true` (`false` by default)
 *
 * Load (or merge) new tlds list. Those are user for fuzzy links (without prefix)
 * to avoid false positives. By default this algorithm used:
 *
 * - hostname with any 2-letter root zones are ok.
 * - biz|com|edu|gov|net|org|pro|web|xxx|aero|asia|coop|info|museum|name|shop|рф
 *   are ok.
 * - encoded (`xn--...`) root zones are ok.
 *
 * If list is replaced, then exact match for 2-chars root zones will be checked.
 **/
LinkifyIt.prototype.tlds = function tlds(list, keepOld) {
  list = Array.isArray(list) ? list : [ list ];

  if (!keepOld) {
    this.__tlds__ = list.slice();
    this.__tlds_replaced__ = true;
    compile(this);
    return this;
  }

  this.__tlds__ = this.__tlds__.concat(list)
                                  .sort()
                                  .filter(function (el, idx, arr) {
                                    return el !== arr[idx - 1];
                                  })
                                  .reverse();

  compile(this);
  return this;
};

/**
 * LinkifyIt#normalize(match)
 *
 * Default normalizer (if schema does not define it's own).
 **/
LinkifyIt.prototype.normalize = function normalize(match) {

  // Do minimal possible changes by default. Need to collect feedback prior
  // to move forward https://github.com/markdown-it/linkify-it/issues/1

  if (!match.schema) { match.url = 'http://' + match.url; }

  if (match.schema === 'mailto:' && !/^mailto:/i.test(match.url)) {
    match.url = 'mailto:' + match.url;
  }
};


/**
 * LinkifyIt#onCompile()
 *
 * Override to modify basic RegExp-s.
 **/
LinkifyIt.prototype.onCompile = function onCompile() {
};


module.exports = LinkifyIt;

},{"./lib/re":171}],171:[function(require,module,exports){
'use strict';


module.exports = function (opts) {
  var re = {};

  // Use direct extract instead of `regenerate` to reduce browserified size
  re.src_Any = require('uc.micro/properties/Any/regex').source;
  re.src_Cc  = require('uc.micro/categories/Cc/regex').source;
  re.src_Z   = require('uc.micro/categories/Z/regex').source;
  re.src_P   = require('uc.micro/categories/P/regex').source;

  // \p{\Z\P\Cc\CF} (white spaces + control + format + punctuation)
  re.src_ZPCc = [ re.src_Z, re.src_P, re.src_Cc ].join('|');

  // \p{\Z\Cc} (white spaces + control)
  re.src_ZCc = [ re.src_Z, re.src_Cc ].join('|');

  // Experimental. List of chars, completely prohibited in links
  // because can separate it from other part of text
  var text_separators = '[><\uff5c]';

  // All possible word characters (everything without punctuation, spaces & controls)
  // Defined via punctuation & spaces to save space
  // Should be something like \p{\L\N\S\M} (\w but without `_`)
  re.src_pseudo_letter       = '(?:(?!' + text_separators + '|' + re.src_ZPCc + ')' + re.src_Any + ')';
  // The same as abothe but without [0-9]
  // var src_pseudo_letter_non_d = '(?:(?![0-9]|' + src_ZPCc + ')' + src_Any + ')';

  ////////////////////////////////////////////////////////////////////////////////

  re.src_ip4 =

    '(?:(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\.){3}(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)';

  // Prohibit any of "@/[]()" in user/pass to avoid wrong domain fetch.
  re.src_auth    = '(?:(?:(?!' + re.src_ZCc + '|[@/\\[\\]()]).)+@)?';

  re.src_port =

    '(?::(?:6(?:[0-4]\\d{3}|5(?:[0-4]\\d{2}|5(?:[0-2]\\d|3[0-5])))|[1-5]?\\d{1,4}))?';

  re.src_host_terminator =

    '(?=$|' + text_separators + '|' + re.src_ZPCc + ')(?!-|_|:\\d|\\.-|\\.(?!$|' + re.src_ZPCc + '))';

  re.src_path =

    '(?:' +
      '[/?#]' +
        '(?:' +
          '(?!' + re.src_ZCc + '|' + text_separators + '|[()[\\]{}.,"\'?!\\-]).|' +
          '\\[(?:(?!' + re.src_ZCc + '|\\]).)*\\]|' +
          '\\((?:(?!' + re.src_ZCc + '|[)]).)*\\)|' +
          '\\{(?:(?!' + re.src_ZCc + '|[}]).)*\\}|' +
          '\\"(?:(?!' + re.src_ZCc + '|["]).)+\\"|' +
          "\\'(?:(?!" + re.src_ZCc + "|[']).)+\\'|" +
          "\\'(?=" + re.src_pseudo_letter + '|[-]).|' +  // allow `I'm_king` if no pair found
          '\\.{2,3}[a-zA-Z0-9%/]|' + // github has ... in commit range links. Restrict to
                                     // - english
                                     // - percent-encoded
                                     // - parts of file path
                                     // until more examples found.
          '\\.(?!' + re.src_ZCc + '|[.]).|' +
          (opts && opts['---'] ?
            '\\-(?!--(?:[^-]|$))(?:-*)|' // `---` => long dash, terminate
          :
            '\\-+|'
          ) +
          '\\,(?!' + re.src_ZCc + ').|' +      // allow `,,,` in paths
          '\\!(?!' + re.src_ZCc + '|[!]).|' +
          '\\?(?!' + re.src_ZCc + '|[?]).' +
        ')+' +
      '|\\/' +
    ')?';

  re.src_email_name =

    '[\\-;:&=\\+\\$,\\"\\.a-zA-Z0-9_]+';

  re.src_xn =

    'xn--[a-z0-9\\-]{1,59}';

  // More to read about domain names
  // http://serverfault.com/questions/638260/

  re.src_domain_root =

    // Allow letters & digits (http://test1)
    '(?:' +
      re.src_xn +
      '|' +
      re.src_pseudo_letter + '{1,63}' +
    ')';

  re.src_domain =

    '(?:' +
      re.src_xn +
      '|' +
      '(?:' + re.src_pseudo_letter + ')' +
      '|' +
      // don't allow `--` in domain names, because:
      // - that can conflict with markdown &mdash; / &ndash;
      // - nobody use those anyway
      '(?:' + re.src_pseudo_letter + '(?:-(?!-)|' + re.src_pseudo_letter + '){0,61}' + re.src_pseudo_letter + ')' +
    ')';

  re.src_host =

    '(?:' +
    // Don't need IP check, because digits are already allowed in normal domain names
    //   src_ip4 +
    // '|' +
      '(?:(?:(?:' + re.src_domain + ')\\.)*' + re.src_domain/*_root*/ + ')' +
    ')';

  re.tpl_host_fuzzy =

    '(?:' +
      re.src_ip4 +
    '|' +
      '(?:(?:(?:' + re.src_domain + ')\\.)+(?:%TLDS%))' +
    ')';

  re.tpl_host_no_ip_fuzzy =

    '(?:(?:(?:' + re.src_domain + ')\\.)+(?:%TLDS%))';

  re.src_host_strict =

    re.src_host + re.src_host_terminator;

  re.tpl_host_fuzzy_strict =

    re.tpl_host_fuzzy + re.src_host_terminator;

  re.src_host_port_strict =

    re.src_host + re.src_port + re.src_host_terminator;

  re.tpl_host_port_fuzzy_strict =

    re.tpl_host_fuzzy + re.src_port + re.src_host_terminator;

  re.tpl_host_port_no_ip_fuzzy_strict =

    re.tpl_host_no_ip_fuzzy + re.src_port + re.src_host_terminator;


  ////////////////////////////////////////////////////////////////////////////////
  // Main rules

  // Rude test fuzzy links by host, for quick deny
  re.tpl_host_fuzzy_test =

    'localhost|www\\.|\\.\\d{1,3}\\.|(?:\\.(?:%TLDS%)(?:' + re.src_ZPCc + '|>|$))';

  re.tpl_email_fuzzy =

      '(^|' + text_separators + '|\\(|' + re.src_ZCc + ')(' + re.src_email_name + '@' + re.tpl_host_fuzzy_strict + ')';

  re.tpl_link_fuzzy =
      // Fuzzy link can't be prepended with .:/\- and non punctuation.
      // but can start with > (markdown blockquote)
      '(^|(?![.:/\\-_@])(?:[$+<=>^`|\uff5c]|' + re.src_ZPCc + '))' +
      '((?![$+<=>^`|\uff5c])' + re.tpl_host_port_fuzzy_strict + re.src_path + ')';

  re.tpl_link_no_ip_fuzzy =
      // Fuzzy link can't be prepended with .:/\- and non punctuation.
      // but can start with > (markdown blockquote)
      '(^|(?![.:/\\-_@])(?:[$+<=>^`|\uff5c]|' + re.src_ZPCc + '))' +
      '((?![$+<=>^`|\uff5c])' + re.tpl_host_port_no_ip_fuzzy_strict + re.src_path + ')';

  return re;
};

},{"uc.micro/categories/Cc/regex":236,"uc.micro/categories/P/regex":238,"uc.micro/categories/Z/regex":239,"uc.micro/properties/Any/regex":241}],172:[function(require,module,exports){
'use strict';


module.exports = require('./lib/');

},{"./lib/":181}],173:[function(require,module,exports){
// HTML5 entities map: { name -> utf16string }
//
'use strict';

/*eslint quotes:0*/
module.exports = require('entities/maps/entities.json');

},{"entities/maps/entities.json":66}],174:[function(require,module,exports){
// List of valid html blocks names, accorting to commonmark spec
// http://jgm.github.io/CommonMark/spec.html#html-blocks

'use strict';


module.exports = [
  'address',
  'article',
  'aside',
  'base',
  'basefont',
  'blockquote',
  'body',
  'caption',
  'center',
  'col',
  'colgroup',
  'dd',
  'details',
  'dialog',
  'dir',
  'div',
  'dl',
  'dt',
  'fieldset',
  'figcaption',
  'figure',
  'footer',
  'form',
  'frame',
  'frameset',
  'h1',
  'h2',
  'h3',
  'h4',
  'h5',
  'h6',
  'head',
  'header',
  'hr',
  'html',
  'iframe',
  'legend',
  'li',
  'link',
  'main',
  'menu',
  'menuitem',
  'meta',
  'nav',
  'noframes',
  'ol',
  'optgroup',
  'option',
  'p',
  'param',
  'section',
  'source',
  'summary',
  'table',
  'tbody',
  'td',
  'tfoot',
  'th',
  'thead',
  'title',
  'tr',
  'track',
  'ul'
];

},{}],175:[function(require,module,exports){
// Regexps to match html elements

'use strict';

var attr_name     = '[a-zA-Z_:][a-zA-Z0-9:._-]*';

var unquoted      = '[^"\'=<>`\\x00-\\x20]+';
var single_quoted = "'[^']*'";
var double_quoted = '"[^"]*"';

var attr_value  = '(?:' + unquoted + '|' + single_quoted + '|' + double_quoted + ')';

var attribute   = '(?:\\s+' + attr_name + '(?:\\s*=\\s*' + attr_value + ')?)';

var open_tag    = '<[A-Za-z][A-Za-z0-9\\-]*' + attribute + '*\\s*\\/?>';

var close_tag   = '<\\/[A-Za-z][A-Za-z0-9\\-]*\\s*>';
var comment     = '<!---->|<!--(?:-?[^>-])(?:-?[^-])*-->';
var processing  = '<[?].*?[?]>';
var declaration = '<![A-Z]+\\s+[^>]*>';
var cdata       = '<!\\[CDATA\\[[\\s\\S]*?\\]\\]>';

var HTML_TAG_RE = new RegExp('^(?:' + open_tag + '|' + close_tag + '|' + comment +
                        '|' + processing + '|' + declaration + '|' + cdata + ')');
var HTML_OPEN_CLOSE_TAG_RE = new RegExp('^(?:' + open_tag + '|' + close_tag + ')');

module.exports.HTML_TAG_RE = HTML_TAG_RE;
module.exports.HTML_OPEN_CLOSE_TAG_RE = HTML_OPEN_CLOSE_TAG_RE;

},{}],176:[function(require,module,exports){
// Utilities
//
'use strict';


function _class(obj) { return Object.prototype.toString.call(obj); }

function isString(obj) { return _class(obj) === '[object String]'; }

var _hasOwnProperty = Object.prototype.hasOwnProperty;

function has(object, key) {
  return _hasOwnProperty.call(object, key);
}

// Merge objects
//
function assign(obj /*from1, from2, from3, ...*/) {
  var sources = Array.prototype.slice.call(arguments, 1);

  sources.forEach(function (source) {
    if (!source) { return; }

    if (typeof source !== 'object') {
      throw new TypeError(source + 'must be object');
    }

    Object.keys(source).forEach(function (key) {
      obj[key] = source[key];
    });
  });

  return obj;
}

// Remove element from array and put another array at those position.
// Useful for some operations with tokens
function arrayReplaceAt(src, pos, newElements) {
  return [].concat(src.slice(0, pos), newElements, src.slice(pos + 1));
}

////////////////////////////////////////////////////////////////////////////////

function isValidEntityCode(c) {
  /*eslint no-bitwise:0*/
  // broken sequence
  if (c >= 0xD800 && c <= 0xDFFF) { return false; }
  // never used
  if (c >= 0xFDD0 && c <= 0xFDEF) { return false; }
  if ((c & 0xFFFF) === 0xFFFF || (c & 0xFFFF) === 0xFFFE) { return false; }
  // control codes
  if (c >= 0x00 && c <= 0x08) { return false; }
  if (c === 0x0B) { return false; }
  if (c >= 0x0E && c <= 0x1F) { return false; }
  if (c >= 0x7F && c <= 0x9F) { return false; }
  // out of range
  if (c > 0x10FFFF) { return false; }
  return true;
}

function fromCodePoint(c) {
  /*eslint no-bitwise:0*/
  if (c > 0xffff) {
    c -= 0x10000;
    var surrogate1 = 0xd800 + (c >> 10),
        surrogate2 = 0xdc00 + (c & 0x3ff);

    return String.fromCharCode(surrogate1, surrogate2);
  }
  return String.fromCharCode(c);
}


var UNESCAPE_MD_RE  = /\\([!"#$%&'()*+,\-.\/:;<=>?@[\\\]^_`{|}~])/g;
var ENTITY_RE       = /&([a-z#][a-z0-9]{1,31});/gi;
var UNESCAPE_ALL_RE = new RegExp(UNESCAPE_MD_RE.source + '|' + ENTITY_RE.source, 'gi');

var DIGITAL_ENTITY_TEST_RE = /^#((?:x[a-f0-9]{1,8}|[0-9]{1,8}))/i;

var entities = require('./entities');

function replaceEntityPattern(match, name) {
  var code = 0;

  if (has(entities, name)) {
    return entities[name];
  }

  if (name.charCodeAt(0) === 0x23/* # */ && DIGITAL_ENTITY_TEST_RE.test(name)) {
    code = name[1].toLowerCase() === 'x' ?
      parseInt(name.slice(2), 16)
    :
      parseInt(name.slice(1), 10);
    if (isValidEntityCode(code)) {
      return fromCodePoint(code);
    }
  }

  return match;
}

/*function replaceEntities(str) {
  if (str.indexOf('&') < 0) { return str; }

  return str.replace(ENTITY_RE, replaceEntityPattern);
}*/

function unescapeMd(str) {
  if (str.indexOf('\\') < 0) { return str; }
  return str.replace(UNESCAPE_MD_RE, '$1');
}

function unescapeAll(str) {
  if (str.indexOf('\\') < 0 && str.indexOf('&') < 0) { return str; }

  return str.replace(UNESCAPE_ALL_RE, function (match, escaped, entity) {
    if (escaped) { return escaped; }
    return replaceEntityPattern(match, entity);
  });
}

////////////////////////////////////////////////////////////////////////////////

var HTML_ESCAPE_TEST_RE = /[&<>"]/;
var HTML_ESCAPE_REPLACE_RE = /[&<>"]/g;
var HTML_REPLACEMENTS = {
  '&': '&amp;',
  '<': '&lt;',
  '>': '&gt;',
  '"': '&quot;'
};

function replaceUnsafeChar(ch) {
  return HTML_REPLACEMENTS[ch];
}

function escapeHtml(str) {
  if (HTML_ESCAPE_TEST_RE.test(str)) {
    return str.replace(HTML_ESCAPE_REPLACE_RE, replaceUnsafeChar);
  }
  return str;
}

////////////////////////////////////////////////////////////////////////////////

var REGEXP_ESCAPE_RE = /[.?*+^$[\]\\(){}|-]/g;

function escapeRE(str) {
  return str.replace(REGEXP_ESCAPE_RE, '\\$&');
}

////////////////////////////////////////////////////////////////////////////////

function isSpace(code) {
  switch (code) {
    case 0x09:
    case 0x20:
      return true;
  }
  return false;
}

// Zs (unicode class) || [\t\f\v\r\n]
function isWhiteSpace(code) {
  if (code >= 0x2000 && code <= 0x200A) { return true; }
  switch (code) {
    case 0x09: // \t
    case 0x0A: // \n
    case 0x0B: // \v
    case 0x0C: // \f
    case 0x0D: // \r
    case 0x20:
    case 0xA0:
    case 0x1680:
    case 0x202F:
    case 0x205F:
    case 0x3000:
      return true;
  }
  return false;
}

////////////////////////////////////////////////////////////////////////////////

/*eslint-disable max-len*/
var UNICODE_PUNCT_RE = require('uc.micro/categories/P/regex');

// Currently without astral characters support.
function isPunctChar(ch) {
  return UNICODE_PUNCT_RE.test(ch);
}


// Markdown ASCII punctuation characters.
//
// !, ", #, $, %, &, ', (, ), *, +, ,, -, ., /, :, ;, <, =, >, ?, @, [, \, ], ^, _, `, {, |, }, or ~
// http://spec.commonmark.org/0.15/#ascii-punctuation-character
//
// Don't confuse with unicode punctuation !!! It lacks some chars in ascii range.
//
function isMdAsciiPunct(ch) {
  switch (ch) {
    case 0x21/* ! */:
    case 0x22/* " */:
    case 0x23/* # */:
    case 0x24/* $ */:
    case 0x25/* % */:
    case 0x26/* & */:
    case 0x27/* ' */:
    case 0x28/* ( */:
    case 0x29/* ) */:
    case 0x2A/* * */:
    case 0x2B/* + */:
    case 0x2C/* , */:
    case 0x2D/* - */:
    case 0x2E/* . */:
    case 0x2F/* / */:
    case 0x3A/* : */:
    case 0x3B/* ; */:
    case 0x3C/* < */:
    case 0x3D/* = */:
    case 0x3E/* > */:
    case 0x3F/* ? */:
    case 0x40/* @ */:
    case 0x5B/* [ */:
    case 0x5C/* \ */:
    case 0x5D/* ] */:
    case 0x5E/* ^ */:
    case 0x5F/* _ */:
    case 0x60/* ` */:
    case 0x7B/* { */:
    case 0x7C/* | */:
    case 0x7D/* } */:
    case 0x7E/* ~ */:
      return true;
    default:
      return false;
  }
}

// Hepler to unify [reference labels].
//
function normalizeReference(str) {
  // use .toUpperCase() instead of .toLowerCase()
  // here to avoid a conflict with Object.prototype
  // members (most notably, `__proto__`)
  return str.trim().replace(/\s+/g, ' ').toUpperCase();
}

////////////////////////////////////////////////////////////////////////////////

// Re-export libraries commonly used in both markdown-it and its plugins,
// so plugins won't have to depend on them explicitly, which reduces their
// bundled size (e.g. a browser build).
//
exports.lib                 = {};
exports.lib.mdurl           = require('mdurl');
exports.lib.ucmicro         = require('uc.micro');

exports.assign              = assign;
exports.isString            = isString;
exports.has                 = has;
exports.unescapeMd          = unescapeMd;
exports.unescapeAll         = unescapeAll;
exports.isValidEntityCode   = isValidEntityCode;
exports.fromCodePoint       = fromCodePoint;
// exports.replaceEntities     = replaceEntities;
exports.escapeHtml          = escapeHtml;
exports.arrayReplaceAt      = arrayReplaceAt;
exports.isSpace             = isSpace;
exports.isWhiteSpace        = isWhiteSpace;
exports.isMdAsciiPunct      = isMdAsciiPunct;
exports.isPunctChar         = isPunctChar;
exports.escapeRE            = escapeRE;
exports.normalizeReference  = normalizeReference;

},{"./entities":173,"mdurl":227,"uc.micro":240,"uc.micro/categories/P/regex":238}],177:[function(require,module,exports){
// Just a shortcut for bulk export
'use strict';


exports.parseLinkLabel       = require('./parse_link_label');
exports.parseLinkDestination = require('./parse_link_destination');
exports.parseLinkTitle       = require('./parse_link_title');

},{"./parse_link_destination":178,"./parse_link_label":179,"./parse_link_title":180}],178:[function(require,module,exports){
// Parse link destination
//
'use strict';


var isSpace     = require('../common/utils').isSpace;
var unescapeAll = require('../common/utils').unescapeAll;


module.exports = function parseLinkDestination(str, pos, max) {
  var code, level,
      lines = 0,
      start = pos,
      result = {
        ok: false,
        pos: 0,
        lines: 0,
        str: ''
      };

  if (str.charCodeAt(pos) === 0x3C /* < */) {
    pos++;
    while (pos < max) {
      code = str.charCodeAt(pos);
      if (code === 0x0A /* \n */ || isSpace(code)) { return result; }
      if (code === 0x3E /* > */) {
        result.pos = pos + 1;
        result.str = unescapeAll(str.slice(start + 1, pos));
        result.ok = true;
        return result;
      }
      if (code === 0x5C /* \ */ && pos + 1 < max) {
        pos += 2;
        continue;
      }

      pos++;
    }

    // no closing '>'
    return result;
  }

  // this should be ... } else { ... branch

  level = 0;
  while (pos < max) {
    code = str.charCodeAt(pos);

    if (code === 0x20) { break; }

    // ascii control characters
    if (code < 0x20 || code === 0x7F) { break; }

    if (code === 0x5C /* \ */ && pos + 1 < max) {
      pos += 2;
      continue;
    }

    if (code === 0x28 /* ( */) {
      level++;
    }

    if (code === 0x29 /* ) */) {
      if (level === 0) { break; }
      level--;
    }

    pos++;
  }

  if (start === pos) { return result; }
  if (level !== 0) { return result; }

  result.str = unescapeAll(str.slice(start, pos));
  result.lines = lines;
  result.pos = pos;
  result.ok = true;
  return result;
};

},{"../common/utils":176}],179:[function(require,module,exports){
// Parse link label
//
// this function assumes that first character ("[") already matches;
// returns the end of the label
//
'use strict';

module.exports = function parseLinkLabel(state, start, disableNested) {
  var level, found, marker, prevPos,
      labelEnd = -1,
      max = state.posMax,
      oldPos = state.pos;

  state.pos = start + 1;
  level = 1;

  while (state.pos < max) {
    marker = state.src.charCodeAt(state.pos);
    if (marker === 0x5D /* ] */) {
      level--;
      if (level === 0) {
        found = true;
        break;
      }
    }

    prevPos = state.pos;
    state.md.inline.skipToken(state);
    if (marker === 0x5B /* [ */) {
      if (prevPos === state.pos - 1) {
        // increase level if we find text `[`, which is not a part of any token
        level++;
      } else if (disableNested) {
        state.pos = oldPos;
        return -1;
      }
    }
  }

  if (found) {
    labelEnd = state.pos;
  }

  // restore old state
  state.pos = oldPos;

  return labelEnd;
};

},{}],180:[function(require,module,exports){
// Parse link title
//
'use strict';


var unescapeAll = require('../common/utils').unescapeAll;


module.exports = function parseLinkTitle(str, pos, max) {
  var code,
      marker,
      lines = 0,
      start = pos,
      result = {
        ok: false,
        pos: 0,
        lines: 0,
        str: ''
      };

  if (pos >= max) { return result; }

  marker = str.charCodeAt(pos);

  if (marker !== 0x22 /* " */ && marker !== 0x27 /* ' */ && marker !== 0x28 /* ( */) { return result; }

  pos++;

  // if opening marker is "(", switch it to closing marker ")"
  if (marker === 0x28) { marker = 0x29; }

  while (pos < max) {
    code = str.charCodeAt(pos);
    if (code === marker) {
      result.pos = pos + 1;
      result.lines = lines;
      result.str = unescapeAll(str.slice(start + 1, pos));
      result.ok = true;
      return result;
    } else if (code === 0x0A) {
      lines++;
    } else if (code === 0x5C /* \ */ && pos + 1 < max) {
      pos++;
      if (str.charCodeAt(pos) === 0x0A) {
        lines++;
      }
    }

    pos++;
  }

  return result;
};

},{"../common/utils":176}],181:[function(require,module,exports){
// Main parser class

'use strict';


var utils        = require('./common/utils');
var helpers      = require('./helpers');
var Renderer     = require('./renderer');
var ParserCore   = require('./parser_core');
var ParserBlock  = require('./parser_block');
var ParserInline = require('./parser_inline');
var LinkifyIt    = require('linkify-it');
var mdurl        = require('mdurl');
var punycode     = require('punycode');


var config = {
  'default': require('./presets/default'),
  zero: require('./presets/zero'),
  commonmark: require('./presets/commonmark')
};

////////////////////////////////////////////////////////////////////////////////
//
// This validator can prohibit more than really needed to prevent XSS. It's a
// tradeoff to keep code simple and to be secure by default.
//
// If you need different setup - override validator method as you wish. Or
// replace it with dummy function and use external sanitizer.
//

var BAD_PROTO_RE = /^(vbscript|javascript|file|data):/;
var GOOD_DATA_RE = /^data:image\/(gif|png|jpeg|webp);/;

function validateLink(url) {
  // url should be normalized at this point, and existing entities are decoded
  var str = url.trim().toLowerCase();

  return BAD_PROTO_RE.test(str) ? (GOOD_DATA_RE.test(str) ? true : false) : true;
}

////////////////////////////////////////////////////////////////////////////////


var RECODE_HOSTNAME_FOR = [ 'http:', 'https:', 'mailto:' ];

function normalizeLink(url) {
  var parsed = mdurl.parse(url, true);

  if (parsed.hostname) {
    // Encode hostnames in urls like:
    // `http://host/`, `https://host/`, `mailto:user@host`, `//host/`
    //
    // We don't encode unknown schemas, because it's likely that we encode
    // something we shouldn't (e.g. `skype:name` treated as `skype:host`)
    //
    if (!parsed.protocol || RECODE_HOSTNAME_FOR.indexOf(parsed.protocol) >= 0) {
      try {
        parsed.hostname = punycode.toASCII(parsed.hostname);
      } catch (er) { /**/ }
    }
  }

  return mdurl.encode(mdurl.format(parsed));
}

function normalizeLinkText(url) {
  var parsed = mdurl.parse(url, true);

  if (parsed.hostname) {
    // Encode hostnames in urls like:
    // `http://host/`, `https://host/`, `mailto:user@host`, `//host/`
    //
    // We don't encode unknown schemas, because it's likely that we encode
    // something we shouldn't (e.g. `skype:name` treated as `skype:host`)
    //
    if (!parsed.protocol || RECODE_HOSTNAME_FOR.indexOf(parsed.protocol) >= 0) {
      try {
        parsed.hostname = punycode.toUnicode(parsed.hostname);
      } catch (er) { /**/ }
    }
  }

  return mdurl.decode(mdurl.format(parsed));
}


/**
 * class MarkdownIt
 *
 * Main parser/renderer class.
 *
 * ##### Usage
 *
 * ```javascript
 * // node.js, "classic" way:
 * var MarkdownIt = require('markdown-it'),
 *     md = new MarkdownIt();
 * var result = md.render('# markdown-it rulezz!');
 *
 * // node.js, the same, but with sugar:
 * var md = require('markdown-it')();
 * var result = md.render('# markdown-it rulezz!');
 *
 * // browser without AMD, added to "window" on script load
 * // Note, there are no dash.
 * var md = window.markdownit();
 * var result = md.render('# markdown-it rulezz!');
 * ```
 *
 * Single line rendering, without paragraph wrap:
 *
 * ```javascript
 * var md = require('markdown-it')();
 * var result = md.renderInline('__markdown-it__ rulezz!');
 * ```
 **/

/**
 * new MarkdownIt([presetName, options])
 * - presetName (String): optional, `commonmark` / `zero`
 * - options (Object)
 *
 * Creates parser instanse with given config. Can be called without `new`.
 *
 * ##### presetName
 *
 * MarkdownIt provides named presets as a convenience to quickly
 * enable/disable active syntax rules and options for common use cases.
 *
 * - ["commonmark"](https://github.com/markdown-it/markdown-it/blob/master/lib/presets/commonmark.js) -
 *   configures parser to strict [CommonMark](http://commonmark.org/) mode.
 * - [default](https://github.com/markdown-it/markdown-it/blob/master/lib/presets/default.js) -
 *   similar to GFM, used when no preset name given. Enables all available rules,
 *   but still without html, typographer & autolinker.
 * - ["zero"](https://github.com/markdown-it/markdown-it/blob/master/lib/presets/zero.js) -
 *   all rules disabled. Useful to quickly setup your config via `.enable()`.
 *   For example, when you need only `bold` and `italic` markup and nothing else.
 *
 * ##### options:
 *
 * - __html__ - `false`. Set `true` to enable HTML tags in source. Be careful!
 *   That's not safe! You may need external sanitizer to protect output from XSS.
 *   It's better to extend features via plugins, instead of enabling HTML.
 * - __xhtmlOut__ - `false`. Set `true` to add '/' when closing single tags
 *   (`<br />`). This is needed only for full CommonMark compatibility. In real
 *   world you will need HTML output.
 * - __breaks__ - `false`. Set `true` to convert `\n` in paragraphs into `<br>`.
 * - __langPrefix__ - `language-`. CSS language class prefix for fenced blocks.
 *   Can be useful for external highlighters.
 * - __linkify__ - `false`. Set `true` to autoconvert URL-like text to links.
 * - __typographer__  - `false`. Set `true` to enable [some language-neutral
 *   replacement](https://github.com/markdown-it/markdown-it/blob/master/lib/rules_core/replacements.js) +
 *   quotes beautification (smartquotes).
 * - __quotes__ - `“”‘’`, String or Array. Double + single quotes replacement
 *   pairs, when typographer enabled and smartquotes on. For example, you can
 *   use `'«»„“'` for Russian, `'„“‚‘'` for German, and
 *   `['«\xA0', '\xA0»', '‹\xA0', '\xA0›']` for French (including nbsp).
 * - __highlight__ - `null`. Highlighter function for fenced code blocks.
 *   Highlighter `function (str, lang)` should return escaped HTML. It can also
 *   return empty string if the source was not changed and should be escaped
 *   externaly. If result starts with <pre... internal wrapper is skipped.
 *
 * ##### Example
 *
 * ```javascript
 * // commonmark mode
 * var md = require('markdown-it')('commonmark');
 *
 * // default mode
 * var md = require('markdown-it')();
 *
 * // enable everything
 * var md = require('markdown-it')({
 *   html: true,
 *   linkify: true,
 *   typographer: true
 * });
 * ```
 *
 * ##### Syntax highlighting
 *
 * ```js
 * var hljs = require('highlight.js') // https://highlightjs.org/
 *
 * var md = require('markdown-it')({
 *   highlight: function (str, lang) {
 *     if (lang && hljs.getLanguage(lang)) {
 *       try {
 *         return hljs.highlight(lang, str, true).value;
 *       } catch (__) {}
 *     }
 *
 *     return ''; // use external default escaping
 *   }
 * });
 * ```
 *
 * Or with full wrapper override (if you need assign class to `<pre>`):
 *
 * ```javascript
 * var hljs = require('highlight.js') // https://highlightjs.org/
 *
 * // Actual default values
 * var md = require('markdown-it')({
 *   highlight: function (str, lang) {
 *     if (lang && hljs.getLanguage(lang)) {
 *       try {
 *         return '<pre class="hljs"><code>' +
 *                hljs.highlight(lang, str, true).value +
 *                '</code></pre>';
 *       } catch (__) {}
 *     }
 *
 *     return '<pre class="hljs"><code>' + md.utils.escapeHtml(str) + '</code></pre>';
 *   }
 * });
 * ```
 *
 **/
function MarkdownIt(presetName, options) {
  if (!(this instanceof MarkdownIt)) {
    return new MarkdownIt(presetName, options);
  }

  if (!options) {
    if (!utils.isString(presetName)) {
      options = presetName || {};
      presetName = 'default';
    }
  }

  /**
   * MarkdownIt#inline -> ParserInline
   *
   * Instance of [[ParserInline]]. You may need it to add new rules when
   * writing plugins. For simple rules control use [[MarkdownIt.disable]] and
   * [[MarkdownIt.enable]].
   **/
  this.inline = new ParserInline();

  /**
   * MarkdownIt#block -> ParserBlock
   *
   * Instance of [[ParserBlock]]. You may need it to add new rules when
   * writing plugins. For simple rules control use [[MarkdownIt.disable]] and
   * [[MarkdownIt.enable]].
   **/
  this.block = new ParserBlock();

  /**
   * MarkdownIt#core -> Core
   *
   * Instance of [[Core]] chain executor. You may need it to add new rules when
   * writing plugins. For simple rules control use [[MarkdownIt.disable]] and
   * [[MarkdownIt.enable]].
   **/
  this.core = new ParserCore();

  /**
   * MarkdownIt#renderer -> Renderer
   *
   * Instance of [[Renderer]]. Use it to modify output look. Or to add rendering
   * rules for new token types, generated by plugins.
   *
   * ##### Example
   *
   * ```javascript
   * var md = require('markdown-it')();
   *
   * function myToken(tokens, idx, options, env, self) {
   *   //...
   *   return result;
   * };
   *
   * md.renderer.rules['my_token'] = myToken
   * ```
   *
   * See [[Renderer]] docs and [source code](https://github.com/markdown-it/markdown-it/blob/master/lib/renderer.js).
   **/
  this.renderer = new Renderer();

  /**
   * MarkdownIt#linkify -> LinkifyIt
   *
   * [linkify-it](https://github.com/markdown-it/linkify-it) instance.
   * Used by [linkify](https://github.com/markdown-it/markdown-it/blob/master/lib/rules_core/linkify.js)
   * rule.
   **/
  this.linkify = new LinkifyIt();

  /**
   * MarkdownIt#validateLink(url) -> Boolean
   *
   * Link validation function. CommonMark allows too much in links. By default
   * we disable `javascript:`, `vbscript:`, `file:` schemas, and almost all `data:...` schemas
   * except some embedded image types.
   *
   * You can change this behaviour:
   *
   * ```javascript
   * var md = require('markdown-it')();
   * // enable everything
   * md.validateLink = function () { return true; }
   * ```
   **/
  this.validateLink = validateLink;

  /**
   * MarkdownIt#normalizeLink(url) -> String
   *
   * Function used to encode link url to a machine-readable format,
   * which includes url-encoding, punycode, etc.
   **/
  this.normalizeLink = normalizeLink;

  /**
   * MarkdownIt#normalizeLinkText(url) -> String
   *
   * Function used to decode link url to a human-readable format`
   **/
  this.normalizeLinkText = normalizeLinkText;


  // Expose utils & helpers for easy access from plugins

  /**
   * MarkdownIt#utils -> utils
   *
   * Assorted utility functions, useful to write plugins. See details
   * [here](https://github.com/markdown-it/markdown-it/blob/master/lib/common/utils.js).
   **/
  this.utils = utils;

  /**
   * MarkdownIt#helpers -> helpers
   *
   * Link components parser functions, useful to write plugins. See details
   * [here](https://github.com/markdown-it/markdown-it/blob/master/lib/helpers).
   **/
  this.helpers = utils.assign({}, helpers);


  this.options = {};
  this.configure(presetName);

  if (options) { this.set(options); }
}


/** chainable
 * MarkdownIt.set(options)
 *
 * Set parser options (in the same format as in constructor). Probably, you
 * will never need it, but you can change options after constructor call.
 *
 * ##### Example
 *
 * ```javascript
 * var md = require('markdown-it')()
 *             .set({ html: true, breaks: true })
 *             .set({ typographer, true });
 * ```
 *
 * __Note:__ To achieve the best possible performance, don't modify a
 * `markdown-it` instance options on the fly. If you need multiple configurations
 * it's best to create multiple instances and initialize each with separate
 * config.
 **/
MarkdownIt.prototype.set = function (options) {
  utils.assign(this.options, options);
  return this;
};


/** chainable, internal
 * MarkdownIt.configure(presets)
 *
 * Batch load of all options and component settings. This is internal method,
 * and you probably will not need it. But if you with - see available presets
 * and data structure [here](https://github.com/markdown-it/markdown-it/tree/master/lib/presets)
 *
 * We strongly recommend to use presets instead of direct config loads. That
 * will give better compatibility with next versions.
 **/
MarkdownIt.prototype.configure = function (presets) {
  var self = this, presetName;

  if (utils.isString(presets)) {
    presetName = presets;
    presets = config[presetName];
    if (!presets) { throw new Error('Wrong `markdown-it` preset "' + presetName + '", check name'); }
  }

  if (!presets) { throw new Error('Wrong `markdown-it` preset, can\'t be empty'); }

  if (presets.options) { self.set(presets.options); }

  if (presets.components) {
    Object.keys(presets.components).forEach(function (name) {
      if (presets.components[name].rules) {
        self[name].ruler.enableOnly(presets.components[name].rules);
      }
      if (presets.components[name].rules2) {
        self[name].ruler2.enableOnly(presets.components[name].rules2);
      }
    });
  }
  return this;
};


/** chainable
 * MarkdownIt.enable(list, ignoreInvalid)
 * - list (String|Array): rule name or list of rule names to enable
 * - ignoreInvalid (Boolean): set `true` to ignore errors when rule not found.
 *
 * Enable list or rules. It will automatically find appropriate components,
 * containing rules with given names. If rule not found, and `ignoreInvalid`
 * not set - throws exception.
 *
 * ##### Example
 *
 * ```javascript
 * var md = require('markdown-it')()
 *             .enable(['sub', 'sup'])
 *             .disable('smartquotes');
 * ```
 **/
MarkdownIt.prototype.enable = function (list, ignoreInvalid) {
  var result = [];

  if (!Array.isArray(list)) { list = [ list ]; }

  [ 'core', 'block', 'inline' ].forEach(function (chain) {
    result = result.concat(this[chain].ruler.enable(list, true));
  }, this);

  result = result.concat(this.inline.ruler2.enable(list, true));

  var missed = list.filter(function (name) { return result.indexOf(name) < 0; });

  if (missed.length && !ignoreInvalid) {
    throw new Error('MarkdownIt. Failed to enable unknown rule(s): ' + missed);
  }

  return this;
};


/** chainable
 * MarkdownIt.disable(list, ignoreInvalid)
 * - list (String|Array): rule name or list of rule names to disable.
 * - ignoreInvalid (Boolean): set `true` to ignore errors when rule not found.
 *
 * The same as [[MarkdownIt.enable]], but turn specified rules off.
 **/
MarkdownIt.prototype.disable = function (list, ignoreInvalid) {
  var result = [];

  if (!Array.isArray(list)) { list = [ list ]; }

  [ 'core', 'block', 'inline' ].forEach(function (chain) {
    result = result.concat(this[chain].ruler.disable(list, true));
  }, this);

  result = result.concat(this.inline.ruler2.disable(list, true));

  var missed = list.filter(function (name) { return result.indexOf(name) < 0; });

  if (missed.length && !ignoreInvalid) {
    throw new Error('MarkdownIt. Failed to disable unknown rule(s): ' + missed);
  }
  return this;
};


/** chainable
 * MarkdownIt.use(plugin, params)
 *
 * Load specified plugin with given params into current parser instance.
 * It's just a sugar to call `plugin(md, params)` with curring.
 *
 * ##### Example
 *
 * ```javascript
 * var iterator = require('markdown-it-for-inline');
 * var md = require('markdown-it')()
 *             .use(iterator, 'foo_replace', 'text', function (tokens, idx) {
 *               tokens[idx].content = tokens[idx].content.replace(/foo/g, 'bar');
 *             });
 * ```
 **/
MarkdownIt.prototype.use = function (plugin /*, params, ... */) {
  var args = [ this ].concat(Array.prototype.slice.call(arguments, 1));
  plugin.apply(plugin, args);
  return this;
};


/** internal
 * MarkdownIt.parse(src, env) -> Array
 * - src (String): source string
 * - env (Object): environment sandbox
 *
 * Parse input string and returns list of block tokens (special token type
 * "inline" will contain list of inline tokens). You should not call this
 * method directly, until you write custom renderer (for example, to produce
 * AST).
 *
 * `env` is used to pass data between "distributed" rules and return additional
 * metadata like reference info, needed for the renderer. It also can be used to
 * inject data in specific cases. Usually, you will be ok to pass `{}`,
 * and then pass updated object to renderer.
 **/
MarkdownIt.prototype.parse = function (src, env) {
  if (typeof src !== 'string') {
    throw new Error('Input data should be a String');
  }

  var state = new this.core.State(src, this, env);

  this.core.process(state);

  return state.tokens;
};


/**
 * MarkdownIt.render(src [, env]) -> String
 * - src (String): source string
 * - env (Object): environment sandbox
 *
 * Render markdown string into html. It does all magic for you :).
 *
 * `env` can be used to inject additional metadata (`{}` by default).
 * But you will not need it with high probability. See also comment
 * in [[MarkdownIt.parse]].
 **/
MarkdownIt.prototype.render = function (src, env) {
  env = env || {};

  return this.renderer.render(this.parse(src, env), this.options, env);
};


/** internal
 * MarkdownIt.parseInline(src, env) -> Array
 * - src (String): source string
 * - env (Object): environment sandbox
 *
 * The same as [[MarkdownIt.parse]] but skip all block rules. It returns the
 * block tokens list with the single `inline` element, containing parsed inline
 * tokens in `children` property. Also updates `env` object.
 **/
MarkdownIt.prototype.parseInline = function (src, env) {
  var state = new this.core.State(src, this, env);

  state.inlineMode = true;
  this.core.process(state);

  return state.tokens;
};


/**
 * MarkdownIt.renderInline(src [, env]) -> String
 * - src (String): source string
 * - env (Object): environment sandbox
 *
 * Similar to [[MarkdownIt.render]] but for single paragraph content. Result
 * will NOT be wrapped into `<p>` tags.
 **/
MarkdownIt.prototype.renderInline = function (src, env) {
  env = env || {};

  return this.renderer.render(this.parseInline(src, env), this.options, env);
};


module.exports = MarkdownIt;

},{"./common/utils":176,"./helpers":177,"./parser_block":182,"./parser_core":183,"./parser_inline":184,"./presets/commonmark":185,"./presets/default":186,"./presets/zero":187,"./renderer":188,"linkify-it":170,"mdurl":227,"punycode":235}],182:[function(require,module,exports){
/** internal
 * class ParserBlock
 *
 * Block-level tokenizer.
 **/
'use strict';


var Ruler           = require('./ruler');


var _rules = [
  // First 2 params - rule name & source. Secondary array - list of rules,
  // which can be terminated by this one.
  [ 'table',      require('./rules_block/table'),      [ 'paragraph', 'reference' ] ],
  [ 'code',       require('./rules_block/code') ],
  [ 'fence',      require('./rules_block/fence'),      [ 'paragraph', 'reference', 'blockquote', 'list' ] ],
  [ 'blockquote', require('./rules_block/blockquote'), [ 'paragraph', 'reference', 'blockquote', 'list' ] ],
  [ 'hr',         require('./rules_block/hr'),         [ 'paragraph', 'reference', 'blockquote', 'list' ] ],
  [ 'list',       require('./rules_block/list'),       [ 'paragraph', 'reference', 'blockquote' ] ],
  [ 'reference',  require('./rules_block/reference') ],
  [ 'heading',    require('./rules_block/heading'),    [ 'paragraph', 'reference', 'blockquote' ] ],
  [ 'lheading',   require('./rules_block/lheading') ],
  [ 'html_block', require('./rules_block/html_block'), [ 'paragraph', 'reference', 'blockquote' ] ],
  [ 'paragraph',  require('./rules_block/paragraph') ]
];


/**
 * new ParserBlock()
 **/
function ParserBlock() {
  /**
   * ParserBlock#ruler -> Ruler
   *
   * [[Ruler]] instance. Keep configuration of block rules.
   **/
  this.ruler = new Ruler();

  for (var i = 0; i < _rules.length; i++) {
    this.ruler.push(_rules[i][0], _rules[i][1], { alt: (_rules[i][2] || []).slice() });
  }
}


// Generate tokens for input range
//
ParserBlock.prototype.tokenize = function (state, startLine, endLine) {
  var ok, i,
      rules = this.ruler.getRules(''),
      len = rules.length,
      line = startLine,
      hasEmptyLines = false,
      maxNesting = state.md.options.maxNesting;

  while (line < endLine) {
    state.line = line = state.skipEmptyLines(line);
    if (line >= endLine) { break; }

    // Termination condition for nested calls.
    // Nested calls currently used for blockquotes & lists
    if (state.sCount[line] < state.blkIndent) { break; }

    // If nesting level exceeded - skip tail to the end. That's not ordinary
    // situation and we should not care about content.
    if (state.level >= maxNesting) {
      state.line = endLine;
      break;
    }

    // Try all possible rules.
    // On success, rule should:
    //
    // - update `state.line`
    // - update `state.tokens`
    // - return true

    for (i = 0; i < len; i++) {
      ok = rules[i](state, line, endLine, false);
      if (ok) { break; }
    }

    // set state.tight if we had an empty line before current tag
    // i.e. latest empty line should not count
    state.tight = !hasEmptyLines;

    // paragraph might "eat" one newline after it in nested lists
    if (state.isEmpty(state.line - 1)) {
      hasEmptyLines = true;
    }

    line = state.line;

    if (line < endLine && state.isEmpty(line)) {
      hasEmptyLines = true;
      line++;
      state.line = line;
    }
  }
};


/**
 * ParserBlock.parse(str, md, env, outTokens)
 *
 * Process input string and push block tokens into `outTokens`
 **/
ParserBlock.prototype.parse = function (src, md, env, outTokens) {
  var state;

  if (!src) { return; }

  state = new this.State(src, md, env, outTokens);

  this.tokenize(state, state.line, state.lineMax);
};


ParserBlock.prototype.State = require('./rules_block/state_block');


module.exports = ParserBlock;

},{"./ruler":189,"./rules_block/blockquote":190,"./rules_block/code":191,"./rules_block/fence":192,"./rules_block/heading":193,"./rules_block/hr":194,"./rules_block/html_block":195,"./rules_block/lheading":196,"./rules_block/list":197,"./rules_block/paragraph":198,"./rules_block/reference":199,"./rules_block/state_block":200,"./rules_block/table":201}],183:[function(require,module,exports){
/** internal
 * class Core
 *
 * Top-level rules executor. Glues block/inline parsers and does intermediate
 * transformations.
 **/
'use strict';


var Ruler  = require('./ruler');


var _rules = [
  [ 'normalize',      require('./rules_core/normalize')      ],
  [ 'block',          require('./rules_core/block')          ],
  [ 'inline',         require('./rules_core/inline')         ],
  [ 'linkify',        require('./rules_core/linkify')        ],
  [ 'replacements',   require('./rules_core/replacements')   ],
  [ 'smartquotes',    require('./rules_core/smartquotes')    ]
];


/**
 * new Core()
 **/
function Core() {
  /**
   * Core#ruler -> Ruler
   *
   * [[Ruler]] instance. Keep configuration of core rules.
   **/
  this.ruler = new Ruler();

  for (var i = 0; i < _rules.length; i++) {
    this.ruler.push(_rules[i][0], _rules[i][1]);
  }
}


/**
 * Core.process(state)
 *
 * Executes core chain rules.
 **/
Core.prototype.process = function (state) {
  var i, l, rules;

  rules = this.ruler.getRules('');

  for (i = 0, l = rules.length; i < l; i++) {
    rules[i](state);
  }
};

Core.prototype.State = require('./rules_core/state_core');


module.exports = Core;

},{"./ruler":189,"./rules_core/block":202,"./rules_core/inline":203,"./rules_core/linkify":204,"./rules_core/normalize":205,"./rules_core/replacements":206,"./rules_core/smartquotes":207,"./rules_core/state_core":208}],184:[function(require,module,exports){
/** internal
 * class ParserInline
 *
 * Tokenizes paragraph content.
 **/
'use strict';


var Ruler           = require('./ruler');


////////////////////////////////////////////////////////////////////////////////
// Parser rules

var _rules = [
  [ 'text',            require('./rules_inline/text') ],
  [ 'newline',         require('./rules_inline/newline') ],
  [ 'escape',          require('./rules_inline/escape') ],
  [ 'backticks',       require('./rules_inline/backticks') ],
  [ 'strikethrough',   require('./rules_inline/strikethrough').tokenize ],
  [ 'emphasis',        require('./rules_inline/emphasis').tokenize ],
  [ 'link',            require('./rules_inline/link') ],
  [ 'image',           require('./rules_inline/image') ],
  [ 'autolink',        require('./rules_inline/autolink') ],
  [ 'html_inline',     require('./rules_inline/html_inline') ],
  [ 'entity',          require('./rules_inline/entity') ]
];

var _rules2 = [
  [ 'balance_pairs',   require('./rules_inline/balance_pairs') ],
  [ 'strikethrough',   require('./rules_inline/strikethrough').postProcess ],
  [ 'emphasis',        require('./rules_inline/emphasis').postProcess ],
  [ 'text_collapse',   require('./rules_inline/text_collapse') ]
];


/**
 * new ParserInline()
 **/
function ParserInline() {
  var i;

  /**
   * ParserInline#ruler -> Ruler
   *
   * [[Ruler]] instance. Keep configuration of inline rules.
   **/
  this.ruler = new Ruler();

  for (i = 0; i < _rules.length; i++) {
    this.ruler.push(_rules[i][0], _rules[i][1]);
  }

  /**
   * ParserInline#ruler2 -> Ruler
   *
   * [[Ruler]] instance. Second ruler used for post-processing
   * (e.g. in emphasis-like rules).
   **/
  this.ruler2 = new Ruler();

  for (i = 0; i < _rules2.length; i++) {
    this.ruler2.push(_rules2[i][0], _rules2[i][1]);
  }
}


// Skip single token by running all rules in validation mode;
// returns `true` if any rule reported success
//
ParserInline.prototype.skipToken = function (state) {
  var ok, i, pos = state.pos,
      rules = this.ruler.getRules(''),
      len = rules.length,
      maxNesting = state.md.options.maxNesting,
      cache = state.cache;


  if (typeof cache[pos] !== 'undefined') {
    state.pos = cache[pos];
    return;
  }

  if (state.level < maxNesting) {
    for (i = 0; i < len; i++) {
      // Increment state.level and decrement it later to limit recursion.
      // It's harmless to do here, because no tokens are created. But ideally,
      // we'd need a separate private state variable for this purpose.
      //
      state.level++;
      ok = rules[i](state, true);
      state.level--;

      if (ok) { break; }
    }
  } else {
    // Too much nesting, just skip until the end of the paragraph.
    //
    // NOTE: this will cause links to behave incorrectly in the following case,
    //       when an amount of `[` is exactly equal to `maxNesting + 1`:
    //
    //       [[[[[[[[[[[[[[[[[[[[[foo]()
    //
    // TODO: remove this workaround when CM standard will allow nested links
    //       (we can replace it by preventing links from being parsed in
    //       validation mode)
    //
    state.pos = state.posMax;
  }

  if (!ok) { state.pos++; }
  cache[pos] = state.pos;
};


// Generate tokens for input range
//
ParserInline.prototype.tokenize = function (state) {
  var ok, i,
      rules = this.ruler.getRules(''),
      len = rules.length,
      end = state.posMax,
      maxNesting = state.md.options.maxNesting;

  while (state.pos < end) {
    // Try all possible rules.
    // On success, rule should:
    //
    // - update `state.pos`
    // - update `state.tokens`
    // - return true

    if (state.level < maxNesting) {
      for (i = 0; i < len; i++) {
        ok = rules[i](state, false);
        if (ok) { break; }
      }
    }

    if (ok) {
      if (state.pos >= end) { break; }
      continue;
    }

    state.pending += state.src[state.pos++];
  }

  if (state.pending) {
    state.pushPending();
  }
};


/**
 * ParserInline.parse(str, md, env, outTokens)
 *
 * Process input string and push inline tokens into `outTokens`
 **/
ParserInline.prototype.parse = function (str, md, env, outTokens) {
  var i, rules, len;
  var state = new this.State(str, md, env, outTokens);

  this.tokenize(state);

  rules = this.ruler2.getRules('');
  len = rules.length;

  for (i = 0; i < len; i++) {
    rules[i](state);
  }
};


ParserInline.prototype.State = require('./rules_inline/state_inline');


module.exports = ParserInline;

},{"./ruler":189,"./rules_inline/autolink":209,"./rules_inline/backticks":210,"./rules_inline/balance_pairs":211,"./rules_inline/emphasis":212,"./rules_inline/entity":213,"./rules_inline/escape":214,"./rules_inline/html_inline":215,"./rules_inline/image":216,"./rules_inline/link":217,"./rules_inline/newline":218,"./rules_inline/state_inline":219,"./rules_inline/strikethrough":220,"./rules_inline/text":221,"./rules_inline/text_collapse":222}],185:[function(require,module,exports){
// Commonmark default options

'use strict';


module.exports = {
  options: {
    html:         true,         // Enable HTML tags in source
    xhtmlOut:     true,         // Use '/' to close single tags (<br />)
    breaks:       false,        // Convert '\n' in paragraphs into <br>
    langPrefix:   'language-',  // CSS language prefix for fenced blocks
    linkify:      false,        // autoconvert URL-like texts to links

    // Enable some language-neutral replacements + quotes beautification
    typographer:  false,

    // Double + single quotes replacement pairs, when typographer enabled,
    // and smartquotes on. Could be either a String or an Array.
    //
    // For example, you can use '«»„“' for Russian, '„“‚‘' for German,
    // and ['«\xA0', '\xA0»', '‹\xA0', '\xA0›'] for French (including nbsp).
    quotes: '\u201c\u201d\u2018\u2019', /* “”‘’ */

    // Highlighter function. Should return escaped HTML,
    // or '' if the source string is not changed and should be escaped externaly.
    // If result starts with <pre... internal wrapper is skipped.
    //
    // function (/*str, lang*/) { return ''; }
    //
    highlight: null,

    maxNesting:   20            // Internal protection, recursion limit
  },

  components: {

    core: {
      rules: [
        'normalize',
        'block',
        'inline'
      ]
    },

    block: {
      rules: [
        'blockquote',
        'code',
        'fence',
        'heading',
        'hr',
        'html_block',
        'lheading',
        'list',
        'reference',
        'paragraph'
      ]
    },

    inline: {
      rules: [
        'autolink',
        'backticks',
        'emphasis',
        'entity',
        'escape',
        'html_inline',
        'image',
        'link',
        'newline',
        'text'
      ],
      rules2: [
        'balance_pairs',
        'emphasis',
        'text_collapse'
      ]
    }
  }
};

},{}],186:[function(require,module,exports){
// markdown-it default options

'use strict';


module.exports = {
  options: {
    html:         false,        // Enable HTML tags in source
    xhtmlOut:     false,        // Use '/' to close single tags (<br />)
    breaks:       false,        // Convert '\n' in paragraphs into <br>
    langPrefix:   'language-',  // CSS language prefix for fenced blocks
    linkify:      false,        // autoconvert URL-like texts to links

    // Enable some language-neutral replacements + quotes beautification
    typographer:  false,

    // Double + single quotes replacement pairs, when typographer enabled,
    // and smartquotes on. Could be either a String or an Array.
    //
    // For example, you can use '«»„“' for Russian, '„“‚‘' for German,
    // and ['«\xA0', '\xA0»', '‹\xA0', '\xA0›'] for French (including nbsp).
    quotes: '\u201c\u201d\u2018\u2019', /* “”‘’ */

    // Highlighter function. Should return escaped HTML,
    // or '' if the source string is not changed and should be escaped externaly.
    // If result starts with <pre... internal wrapper is skipped.
    //
    // function (/*str, lang*/) { return ''; }
    //
    highlight: null,

    maxNesting:   100            // Internal protection, recursion limit
  },

  components: {

    core: {},
    block: {},
    inline: {}
  }
};

},{}],187:[function(require,module,exports){
// "Zero" preset, with nothing enabled. Useful for manual configuring of simple
// modes. For example, to parse bold/italic only.

'use strict';


module.exports = {
  options: {
    html:         false,        // Enable HTML tags in source
    xhtmlOut:     false,        // Use '/' to close single tags (<br />)
    breaks:       false,        // Convert '\n' in paragraphs into <br>
    langPrefix:   'language-',  // CSS language prefix for fenced blocks
    linkify:      false,        // autoconvert URL-like texts to links

    // Enable some language-neutral replacements + quotes beautification
    typographer:  false,

    // Double + single quotes replacement pairs, when typographer enabled,
    // and smartquotes on. Could be either a String or an Array.
    //
    // For example, you can use '«»„“' for Russian, '„“‚‘' for German,
    // and ['«\xA0', '\xA0»', '‹\xA0', '\xA0›'] for French (including nbsp).
    quotes: '\u201c\u201d\u2018\u2019', /* “”‘’ */

    // Highlighter function. Should return escaped HTML,
    // or '' if the source string is not changed and should be escaped externaly.
    // If result starts with <pre... internal wrapper is skipped.
    //
    // function (/*str, lang*/) { return ''; }
    //
    highlight: null,

    maxNesting:   20            // Internal protection, recursion limit
  },

  components: {

    core: {
      rules: [
        'normalize',
        'block',
        'inline'
      ]
    },

    block: {
      rules: [
        'paragraph'
      ]
    },

    inline: {
      rules: [
        'text'
      ],
      rules2: [
        'balance_pairs',
        'text_collapse'
      ]
    }
  }
};

},{}],188:[function(require,module,exports){
/**
 * class Renderer
 *
 * Generates HTML from parsed token stream. Each instance has independent
 * copy of rules. Those can be rewritten with ease. Also, you can add new
 * rules if you create plugin and adds new token types.
 **/
'use strict';


var assign          = require('./common/utils').assign;
var unescapeAll     = require('./common/utils').unescapeAll;
var escapeHtml      = require('./common/utils').escapeHtml;


////////////////////////////////////////////////////////////////////////////////

var default_rules = {};


default_rules.code_inline = function (tokens, idx, options, env, slf) {
  var token = tokens[idx];

  return  '<code' + slf.renderAttrs(token) + '>' +
          escapeHtml(tokens[idx].content) +
          '</code>';
};


default_rules.code_block = function (tokens, idx, options, env, slf) {
  var token = tokens[idx];

  return  '<pre' + slf.renderAttrs(token) + '><code>' +
          escapeHtml(tokens[idx].content) +
          '</code></pre>\n';
};


default_rules.fence = function (tokens, idx, options, env, slf) {
  var token = tokens[idx],
      info = token.info ? unescapeAll(token.info).trim() : '',
      langName = '',
      highlighted, i, tmpAttrs, tmpToken;

  if (info) {
    langName = info.split(/\s+/g)[0];
  }

  if (options.highlight) {
    highlighted = options.highlight(token.content, langName) || escapeHtml(token.content);
  } else {
    highlighted = escapeHtml(token.content);
  }

  if (highlighted.indexOf('<pre') === 0) {
    return highlighted + '\n';
  }

  // If language exists, inject class gently, without modifying original token.
  // May be, one day we will add .clone() for token and simplify this part, but
  // now we prefer to keep things local.
  if (info) {
    i        = token.attrIndex('class');
    tmpAttrs = token.attrs ? token.attrs.slice() : [];

    if (i < 0) {
      tmpAttrs.push([ 'class', options.langPrefix + langName ]);
    } else {
      tmpAttrs[i][1] += ' ' + options.langPrefix + langName;
    }

    // Fake token just to render attributes
    tmpToken = {
      attrs: tmpAttrs
    };

    return  '<pre><code' + slf.renderAttrs(tmpToken) + '>'
          + highlighted
          + '</code></pre>\n';
  }


  return  '<pre><code' + slf.renderAttrs(token) + '>'
        + highlighted
        + '</code></pre>\n';
};


default_rules.image = function (tokens, idx, options, env, slf) {
  var token = tokens[idx];

  // "alt" attr MUST be set, even if empty. Because it's mandatory and
  // should be placed on proper position for tests.
  //
  // Replace content with actual value

  token.attrs[token.attrIndex('alt')][1] =
    slf.renderInlineAsText(token.children, options, env);

  return slf.renderToken(tokens, idx, options);
};


default_rules.hardbreak = function (tokens, idx, options /*, env */) {
  return options.xhtmlOut ? '<br />\n' : '<br>\n';
};
default_rules.softbreak = function (tokens, idx, options /*, env */) {
  return options.breaks ? (options.xhtmlOut ? '<br />\n' : '<br>\n') : '\n';
};


default_rules.text = function (tokens, idx /*, options, env */) {
  return escapeHtml(tokens[idx].content);
};


default_rules.html_block = function (tokens, idx /*, options, env */) {
  return tokens[idx].content;
};
default_rules.html_inline = function (tokens, idx /*, options, env */) {
  return tokens[idx].content;
};


/**
 * new Renderer()
 *
 * Creates new [[Renderer]] instance and fill [[Renderer#rules]] with defaults.
 **/
function Renderer() {

  /**
   * Renderer#rules -> Object
   *
   * Contains render rules for tokens. Can be updated and extended.
   *
   * ##### Example
   *
   * ```javascript
   * var md = require('markdown-it')();
   *
   * md.renderer.rules.strong_open  = function () { return '<b>'; };
   * md.renderer.rules.strong_close = function () { return '</b>'; };
   *
   * var result = md.renderInline(...);
   * ```
   *
   * Each rule is called as independent static function with fixed signature:
   *
   * ```javascript
   * function my_token_render(tokens, idx, options, env, renderer) {
   *   // ...
   *   return renderedHTML;
   * }
   * ```
   *
   * See [source code](https://github.com/markdown-it/markdown-it/blob/master/lib/renderer.js)
   * for more details and examples.
   **/
  this.rules = assign({}, default_rules);
}


/**
 * Renderer.renderAttrs(token) -> String
 *
 * Render token attributes to string.
 **/
Renderer.prototype.renderAttrs = function renderAttrs(token) {
  var i, l, result;

  if (!token.attrs) { return ''; }

  result = '';

  for (i = 0, l = token.attrs.length; i < l; i++) {
    result += ' ' + escapeHtml(token.attrs[i][0]) + '="' + escapeHtml(token.attrs[i][1]) + '"';
  }

  return result;
};


/**
 * Renderer.renderToken(tokens, idx, options) -> String
 * - tokens (Array): list of tokens
 * - idx (Numbed): token index to render
 * - options (Object): params of parser instance
 *
 * Default token renderer. Can be overridden by custom function
 * in [[Renderer#rules]].
 **/
Renderer.prototype.renderToken = function renderToken(tokens, idx, options) {
  var nextToken,
      result = '',
      needLf = false,
      token = tokens[idx];

  // Tight list paragraphs
  if (token.hidden) {
    return '';
  }

  // Insert a newline between hidden paragraph and subsequent opening
  // block-level tag.
  //
  // For example, here we should insert a newline before blockquote:
  //  - a
  //    >
  //
  if (token.block && token.nesting !== -1 && idx && tokens[idx - 1].hidden) {
    result += '\n';
  }

  // Add token name, e.g. `<img`
  result += (token.nesting === -1 ? '</' : '<') + token.tag;

  // Encode attributes, e.g. `<img src="foo"`
  result += this.renderAttrs(token);

  // Add a slash for self-closing tags, e.g. `<img src="foo" /`
  if (token.nesting === 0 && options.xhtmlOut) {
    result += ' /';
  }

  // Check if we need to add a newline after this tag
  if (token.block) {
    needLf = true;

    if (token.nesting === 1) {
      if (idx + 1 < tokens.length) {
        nextToken = tokens[idx + 1];

        if (nextToken.type === 'inline' || nextToken.hidden) {
          // Block-level tag containing an inline tag.
          //
          needLf = false;

        } else if (nextToken.nesting === -1 && nextToken.tag === token.tag) {
          // Opening tag + closing tag of the same type. E.g. `<li></li>`.
          //
          needLf = false;
        }
      }
    }
  }

  result += needLf ? '>\n' : '>';

  return result;
};


/**
 * Renderer.renderInline(tokens, options, env) -> String
 * - tokens (Array): list on block tokens to renter
 * - options (Object): params of parser instance
 * - env (Object): additional data from parsed input (references, for example)
 *
 * The same as [[Renderer.render]], but for single token of `inline` type.
 **/
Renderer.prototype.renderInline = function (tokens, options, env) {
  var type,
      result = '',
      rules = this.rules;

  for (var i = 0, len = tokens.length; i < len; i++) {
    type = tokens[i].type;

    if (typeof rules[type] !== 'undefined') {
      result += rules[type](tokens, i, options, env, this);
    } else {
      result += this.renderToken(tokens, i, options);
    }
  }

  return result;
};


/** internal
 * Renderer.renderInlineAsText(tokens, options, env) -> String
 * - tokens (Array): list on block tokens to renter
 * - options (Object): params of parser instance
 * - env (Object): additional data from parsed input (references, for example)
 *
 * Special kludge for image `alt` attributes to conform CommonMark spec.
 * Don't try to use it! Spec requires to show `alt` content with stripped markup,
 * instead of simple escaping.
 **/
Renderer.prototype.renderInlineAsText = function (tokens, options, env) {
  var result = '';

  for (var i = 0, len = tokens.length; i < len; i++) {
    if (tokens[i].type === 'text') {
      result += tokens[i].content;
    } else if (tokens[i].type === 'image') {
      result += this.renderInlineAsText(tokens[i].children, options, env);
    }
  }

  return result;
};


/**
 * Renderer.render(tokens, options, env) -> String
 * - tokens (Array): list on block tokens to renter
 * - options (Object): params of parser instance
 * - env (Object): additional data from parsed input (references, for example)
 *
 * Takes token stream and generates HTML. Probably, you will never need to call
 * this method directly.
 **/
Renderer.prototype.render = function (tokens, options, env) {
  var i, len, type,
      result = '',
      rules = this.rules;

  for (i = 0, len = tokens.length; i < len; i++) {
    type = tokens[i].type;

    if (type === 'inline') {
      result += this.renderInline(tokens[i].children, options, env);
    } else if (typeof rules[type] !== 'undefined') {
      result += rules[tokens[i].type](tokens, i, options, env, this);
    } else {
      result += this.renderToken(tokens, i, options, env);
    }
  }

  return result;
};

module.exports = Renderer;

},{"./common/utils":176}],189:[function(require,module,exports){
/**
 * class Ruler
 *
 * Helper class, used by [[MarkdownIt#core]], [[MarkdownIt#block]] and
 * [[MarkdownIt#inline]] to manage sequences of functions (rules):
 *
 * - keep rules in defined order
 * - assign the name to each rule
 * - enable/disable rules
 * - add/replace rules
 * - allow assign rules to additional named chains (in the same)
 * - caching lists of active rules
 *
 * You will not need use this class directly until write plugins. For simple
 * rules control use [[MarkdownIt.disable]], [[MarkdownIt.enable]] and
 * [[MarkdownIt.use]].
 **/
'use strict';


/**
 * new Ruler()
 **/
function Ruler() {
  // List of added rules. Each element is:
  //
  // {
  //   name: XXX,
  //   enabled: Boolean,
  //   fn: Function(),
  //   alt: [ name2, name3 ]
  // }
  //
  this.__rules__ = [];

  // Cached rule chains.
  //
  // First level - chain name, '' for default.
  // Second level - diginal anchor for fast filtering by charcodes.
  //
  this.__cache__ = null;
}

////////////////////////////////////////////////////////////////////////////////
// Helper methods, should not be used directly


// Find rule index by name
//
Ruler.prototype.__find__ = function (name) {
  for (var i = 0; i < this.__rules__.length; i++) {
    if (this.__rules__[i].name === name) {
      return i;
    }
  }
  return -1;
};


// Build rules lookup cache
//
Ruler.prototype.__compile__ = function () {
  var self = this;
  var chains = [ '' ];

  // collect unique names
  self.__rules__.forEach(function (rule) {
    if (!rule.enabled) { return; }

    rule.alt.forEach(function (altName) {
      if (chains.indexOf(altName) < 0) {
        chains.push(altName);
      }
    });
  });

  self.__cache__ = {};

  chains.forEach(function (chain) {
    self.__cache__[chain] = [];
    self.__rules__.forEach(function (rule) {
      if (!rule.enabled) { return; }

      if (chain && rule.alt.indexOf(chain) < 0) { return; }

      self.__cache__[chain].push(rule.fn);
    });
  });
};


/**
 * Ruler.at(name, fn [, options])
 * - name (String): rule name to replace.
 * - fn (Function): new rule function.
 * - options (Object): new rule options (not mandatory).
 *
 * Replace rule by name with new function & options. Throws error if name not
 * found.
 *
 * ##### Options:
 *
 * - __alt__ - array with names of "alternate" chains.
 *
 * ##### Example
 *
 * Replace existing typorgapher replacement rule with new one:
 *
 * ```javascript
 * var md = require('markdown-it')();
 *
 * md.core.ruler.at('replacements', function replace(state) {
 *   //...
 * });
 * ```
 **/
Ruler.prototype.at = function (name, fn, options) {
  var index = this.__find__(name);
  var opt = options || {};

  if (index === -1) { throw new Error('Parser rule not found: ' + name); }

  this.__rules__[index].fn = fn;
  this.__rules__[index].alt = opt.alt || [];
  this.__cache__ = null;
};


/**
 * Ruler.before(beforeName, ruleName, fn [, options])
 * - beforeName (String): new rule will be added before this one.
 * - ruleName (String): name of added rule.
 * - fn (Function): rule function.
 * - options (Object): rule options (not mandatory).
 *
 * Add new rule to chain before one with given name. See also
 * [[Ruler.after]], [[Ruler.push]].
 *
 * ##### Options:
 *
 * - __alt__ - array with names of "alternate" chains.
 *
 * ##### Example
 *
 * ```javascript
 * var md = require('markdown-it')();
 *
 * md.block.ruler.before('paragraph', 'my_rule', function replace(state) {
 *   //...
 * });
 * ```
 **/
Ruler.prototype.before = function (beforeName, ruleName, fn, options) {
  var index = this.__find__(beforeName);
  var opt = options || {};

  if (index === -1) { throw new Error('Parser rule not found: ' + beforeName); }

  this.__rules__.splice(index, 0, {
    name: ruleName,
    enabled: true,
    fn: fn,
    alt: opt.alt || []
  });

  this.__cache__ = null;
};


/**
 * Ruler.after(afterName, ruleName, fn [, options])
 * - afterName (String): new rule will be added after this one.
 * - ruleName (String): name of added rule.
 * - fn (Function): rule function.
 * - options (Object): rule options (not mandatory).
 *
 * Add new rule to chain after one with given name. See also
 * [[Ruler.before]], [[Ruler.push]].
 *
 * ##### Options:
 *
 * - __alt__ - array with names of "alternate" chains.
 *
 * ##### Example
 *
 * ```javascript
 * var md = require('markdown-it')();
 *
 * md.inline.ruler.after('text', 'my_rule', function replace(state) {
 *   //...
 * });
 * ```
 **/
Ruler.prototype.after = function (afterName, ruleName, fn, options) {
  var index = this.__find__(afterName);
  var opt = options || {};

  if (index === -1) { throw new Error('Parser rule not found: ' + afterName); }

  this.__rules__.splice(index + 1, 0, {
    name: ruleName,
    enabled: true,
    fn: fn,
    alt: opt.alt || []
  });

  this.__cache__ = null;
};

/**
 * Ruler.push(ruleName, fn [, options])
 * - ruleName (String): name of added rule.
 * - fn (Function): rule function.
 * - options (Object): rule options (not mandatory).
 *
 * Push new rule to the end of chain. See also
 * [[Ruler.before]], [[Ruler.after]].
 *
 * ##### Options:
 *
 * - __alt__ - array with names of "alternate" chains.
 *
 * ##### Example
 *
 * ```javascript
 * var md = require('markdown-it')();
 *
 * md.core.ruler.push('my_rule', function replace(state) {
 *   //...
 * });
 * ```
 **/
Ruler.prototype.push = function (ruleName, fn, options) {
  var opt = options || {};

  this.__rules__.push({
    name: ruleName,
    enabled: true,
    fn: fn,
    alt: opt.alt || []
  });

  this.__cache__ = null;
};


/**
 * Ruler.enable(list [, ignoreInvalid]) -> Array
 * - list (String|Array): list of rule names to enable.
 * - ignoreInvalid (Boolean): set `true` to ignore errors when rule not found.
 *
 * Enable rules with given names. If any rule name not found - throw Error.
 * Errors can be disabled by second param.
 *
 * Returns list of found rule names (if no exception happened).
 *
 * See also [[Ruler.disable]], [[Ruler.enableOnly]].
 **/
Ruler.prototype.enable = function (list, ignoreInvalid) {
  if (!Array.isArray(list)) { list = [ list ]; }

  var result = [];

  // Search by name and enable
  list.forEach(function (name) {
    var idx = this.__find__(name);

    if (idx < 0) {
      if (ignoreInvalid) { return; }
      throw new Error('Rules manager: invalid rule name ' + name);
    }
    this.__rules__[idx].enabled = true;
    result.push(name);
  }, this);

  this.__cache__ = null;
  return result;
};


/**
 * Ruler.enableOnly(list [, ignoreInvalid])
 * - list (String|Array): list of rule names to enable (whitelist).
 * - ignoreInvalid (Boolean): set `true` to ignore errors when rule not found.
 *
 * Enable rules with given names, and disable everything else. If any rule name
 * not found - throw Error. Errors can be disabled by second param.
 *
 * See also [[Ruler.disable]], [[Ruler.enable]].
 **/
Ruler.prototype.enableOnly = function (list, ignoreInvalid) {
  if (!Array.isArray(list)) { list = [ list ]; }

  this.__rules__.forEach(function (rule) { rule.enabled = false; });

  this.enable(list, ignoreInvalid);
};


/**
 * Ruler.disable(list [, ignoreInvalid]) -> Array
 * - list (String|Array): list of rule names to disable.
 * - ignoreInvalid (Boolean): set `true` to ignore errors when rule not found.
 *
 * Disable rules with given names. If any rule name not found - throw Error.
 * Errors can be disabled by second param.
 *
 * Returns list of found rule names (if no exception happened).
 *
 * See also [[Ruler.enable]], [[Ruler.enableOnly]].
 **/
Ruler.prototype.disable = function (list, ignoreInvalid) {
  if (!Array.isArray(list)) { list = [ list ]; }

  var result = [];

  // Search by name and disable
  list.forEach(function (name) {
    var idx = this.__find__(name);

    if (idx < 0) {
      if (ignoreInvalid) { return; }
      throw new Error('Rules manager: invalid rule name ' + name);
    }
    this.__rules__[idx].enabled = false;
    result.push(name);
  }, this);

  this.__cache__ = null;
  return result;
};


/**
 * Ruler.getRules(chainName) -> Array
 *
 * Return array of active functions (rules) for given chain name. It analyzes
 * rules configuration, compiles caches if not exists and returns result.
 *
 * Default chain name is `''` (empty string). It can't be skipped. That's
 * done intentionally, to keep signature monomorphic for high speed.
 **/
Ruler.prototype.getRules = function (chainName) {
  if (this.__cache__ === null) {
    this.__compile__();
  }

  // Chain can be empty, if rules disabled. But we still have to return Array.
  return this.__cache__[chainName] || [];
};

module.exports = Ruler;

},{}],190:[function(require,module,exports){
// Block quotes

'use strict';

var isSpace = require('../common/utils').isSpace;


module.exports = function blockquote(state, startLine, endLine, silent) {
  var adjustTab,
      ch,
      i,
      initial,
      l,
      lastLineEmpty,
      lines,
      nextLine,
      offset,
      oldBMarks,
      oldBSCount,
      oldIndent,
      oldParentType,
      oldSCount,
      oldTShift,
      spaceAfterMarker,
      terminate,
      terminatorRules,
      token,
      wasOutdented,
      oldLineMax = state.lineMax,
      pos = state.bMarks[startLine] + state.tShift[startLine],
      max = state.eMarks[startLine];

  // if it's indented more than 3 spaces, it should be a code block
  if (state.sCount[startLine] - state.blkIndent >= 4) { return false; }

  // check the block quote marker
  if (state.src.charCodeAt(pos++) !== 0x3E/* > */) { return false; }

  // we know that it's going to be a valid blockquote,
  // so no point trying to find the end of it in silent mode
  if (silent) { return true; }

  // skip spaces after ">" and re-calculate offset
  initial = offset = state.sCount[startLine] + pos - (state.bMarks[startLine] + state.tShift[startLine]);

  // skip one optional space after '>'
  if (state.src.charCodeAt(pos) === 0x20 /* space */) {
    // ' >   test '
    //     ^ -- position start of line here:
    pos++;
    initial++;
    offset++;
    adjustTab = false;
    spaceAfterMarker = true;
  } else if (state.src.charCodeAt(pos) === 0x09 /* tab */) {
    spaceAfterMarker = true;

    if ((state.bsCount[startLine] + offset) % 4 === 3) {
      // '  >\t  test '
      //       ^ -- position start of line here (tab has width===1)
      pos++;
      initial++;
      offset++;
      adjustTab = false;
    } else {
      // ' >\t  test '
      //    ^ -- position start of line here + shift bsCount slightly
      //         to make extra space appear
      adjustTab = true;
    }
  } else {
    spaceAfterMarker = false;
  }

  oldBMarks = [ state.bMarks[startLine] ];
  state.bMarks[startLine] = pos;

  while (pos < max) {
    ch = state.src.charCodeAt(pos);

    if (isSpace(ch)) {
      if (ch === 0x09) {
        offset += 4 - (offset + state.bsCount[startLine] + (adjustTab ? 1 : 0)) % 4;
      } else {
        offset++;
      }
    } else {
      break;
    }

    pos++;
  }

  oldBSCount = [ state.bsCount[startLine] ];
  state.bsCount[startLine] = state.sCount[startLine] + 1 + (spaceAfterMarker ? 1 : 0);

  lastLineEmpty = pos >= max;

  oldSCount = [ state.sCount[startLine] ];
  state.sCount[startLine] = offset - initial;

  oldTShift = [ state.tShift[startLine] ];
  state.tShift[startLine] = pos - state.bMarks[startLine];

  terminatorRules = state.md.block.ruler.getRules('blockquote');

  oldParentType = state.parentType;
  state.parentType = 'blockquote';
  wasOutdented = false;

  // Search the end of the block
  //
  // Block ends with either:
  //  1. an empty line outside:
  //     ```
  //     > test
  //
  //     ```
  //  2. an empty line inside:
  //     ```
  //     >
  //     test
  //     ```
  //  3. another tag:
  //     ```
  //     > test
  //      - - -
  //     ```
  for (nextLine = startLine + 1; nextLine < endLine; nextLine++) {
    // check if it's outdented, i.e. it's inside list item and indented
    // less than said list item:
    //
    // ```
    // 1. anything
    //    > current blockquote
    // 2. checking this line
    // ```
    if (state.sCount[nextLine] < state.blkIndent) wasOutdented = true;

    pos = state.bMarks[nextLine] + state.tShift[nextLine];
    max = state.eMarks[nextLine];

    if (pos >= max) {
      // Case 1: line is not inside the blockquote, and this line is empty.
      break;
    }

    if (state.src.charCodeAt(pos++) === 0x3E/* > */ && !wasOutdented) {
      // This line is inside the blockquote.

      // skip spaces after ">" and re-calculate offset
      initial = offset = state.sCount[nextLine] + pos - (state.bMarks[nextLine] + state.tShift[nextLine]);

      // skip one optional space after '>'
      if (state.src.charCodeAt(pos) === 0x20 /* space */) {
        // ' >   test '
        //     ^ -- position start of line here:
        pos++;
        initial++;
        offset++;
        adjustTab = false;
        spaceAfterMarker = true;
      } else if (state.src.charCodeAt(pos) === 0x09 /* tab */) {
        spaceAfterMarker = true;

        if ((state.bsCount[nextLine] + offset) % 4 === 3) {
          // '  >\t  test '
          //       ^ -- position start of line here (tab has width===1)
          pos++;
          initial++;
          offset++;
          adjustTab = false;
        } else {
          // ' >\t  test '
          //    ^ -- position start of line here + shift bsCount slightly
          //         to make extra space appear
          adjustTab = true;
        }
      } else {
        spaceAfterMarker = false;
      }

      oldBMarks.push(state.bMarks[nextLine]);
      state.bMarks[nextLine] = pos;

      while (pos < max) {
        ch = state.src.charCodeAt(pos);

        if (isSpace(ch)) {
          if (ch === 0x09) {
            offset += 4 - (offset + state.bsCount[nextLine] + (adjustTab ? 1 : 0)) % 4;
          } else {
            offset++;
          }
        } else {
          break;
        }

        pos++;
      }

      lastLineEmpty = pos >= max;

      oldBSCount.push(state.bsCount[nextLine]);
      state.bsCount[nextLine] = state.sCount[nextLine] + 1 + (spaceAfterMarker ? 1 : 0);

      oldSCount.push(state.sCount[nextLine]);
      state.sCount[nextLine] = offset - initial;

      oldTShift.push(state.tShift[nextLine]);
      state.tShift[nextLine] = pos - state.bMarks[nextLine];
      continue;
    }

    // Case 2: line is not inside the blockquote, and the last line was empty.
    if (lastLineEmpty) { break; }

    // Case 3: another tag found.
    terminate = false;
    for (i = 0, l = terminatorRules.length; i < l; i++) {
      if (terminatorRules[i](state, nextLine, endLine, true)) {
        terminate = true;
        break;
      }
    }

    if (terminate) {
      // Quirk to enforce "hard termination mode" for paragraphs;
      // normally if you call `tokenize(state, startLine, nextLine)`,
      // paragraphs will look below nextLine for paragraph continuation,
      // but if blockquote is terminated by another tag, they shouldn't
      state.lineMax = nextLine;

      if (state.blkIndent !== 0) {
        // state.blkIndent was non-zero, we now set it to zero,
        // so we need to re-calculate all offsets to appear as
        // if indent wasn't changed
        oldBMarks.push(state.bMarks[nextLine]);
        oldBSCount.push(state.bsCount[nextLine]);
        oldTShift.push(state.tShift[nextLine]);
        oldSCount.push(state.sCount[nextLine]);
        state.sCount[nextLine] -= state.blkIndent;
      }

      break;
    }

    oldBMarks.push(state.bMarks[nextLine]);
    oldBSCount.push(state.bsCount[nextLine]);
    oldTShift.push(state.tShift[nextLine]);
    oldSCount.push(state.sCount[nextLine]);

    // A negative indentation means that this is a paragraph continuation
    //
    state.sCount[nextLine] = -1;
  }

  oldIndent = state.blkIndent;
  state.blkIndent = 0;

  token        = state.push('blockquote_open', 'blockquote', 1);
  token.markup = '>';
  token.map    = lines = [ startLine, 0 ];

  state.md.block.tokenize(state, startLine, nextLine);

  token        = state.push('blockquote_close', 'blockquote', -1);
  token.markup = '>';

  state.lineMax = oldLineMax;
  state.parentType = oldParentType;
  lines[1] = state.line;

  // Restore original tShift; this might not be necessary since the parser
  // has already been here, but just to make sure we can do that.
  for (i = 0; i < oldTShift.length; i++) {
    state.bMarks[i + startLine] = oldBMarks[i];
    state.tShift[i + startLine] = oldTShift[i];
    state.sCount[i + startLine] = oldSCount[i];
    state.bsCount[i + startLine] = oldBSCount[i];
  }
  state.blkIndent = oldIndent;

  return true;
};

},{"../common/utils":176}],191:[function(require,module,exports){
// Code block (4 spaces padded)

'use strict';


module.exports = function code(state, startLine, endLine/*, silent*/) {
  var nextLine, last, token;

  if (state.sCount[startLine] - state.blkIndent < 4) { return false; }

  last = nextLine = startLine + 1;

  while (nextLine < endLine) {
    if (state.isEmpty(nextLine)) {
      nextLine++;
      continue;
    }

    if (state.sCount[nextLine] - state.blkIndent >= 4) {
      nextLine++;
      last = nextLine;
      continue;
    }
    break;
  }

  state.line = last;

  token         = state.push('code_block', 'code', 0);
  token.content = state.getLines(startLine, last, 4 + state.blkIndent, true);
  token.map     = [ startLine, state.line ];

  return true;
};

},{}],192:[function(require,module,exports){
// fences (``` lang, ~~~ lang)

'use strict';


module.exports = function fence(state, startLine, endLine, silent) {
  var marker, len, params, nextLine, mem, token, markup,
      haveEndMarker = false,
      pos = state.bMarks[startLine] + state.tShift[startLine],
      max = state.eMarks[startLine];

  // if it's indented more than 3 spaces, it should be a code block
  if (state.sCount[startLine] - state.blkIndent >= 4) { return false; }

  if (pos + 3 > max) { return false; }

  marker = state.src.charCodeAt(pos);

  if (marker !== 0x7E/* ~ */ && marker !== 0x60 /* ` */) {
    return false;
  }

  // scan marker length
  mem = pos;
  pos = state.skipChars(pos, marker);

  len = pos - mem;

  if (len < 3) { return false; }

  markup = state.src.slice(mem, pos);
  params = state.src.slice(pos, max);

  if (params.indexOf(String.fromCharCode(marker)) >= 0) { return false; }

  // Since start is found, we can report success here in validation mode
  if (silent) { return true; }

  // search end of block
  nextLine = startLine;

  for (;;) {
    nextLine++;
    if (nextLine >= endLine) {
      // unclosed block should be autoclosed by end of document.
      // also block seems to be autoclosed by end of parent
      break;
    }

    pos = mem = state.bMarks[nextLine] + state.tShift[nextLine];
    max = state.eMarks[nextLine];

    if (pos < max && state.sCount[nextLine] < state.blkIndent) {
      // non-empty line with negative indent should stop the list:
      // - ```
      //  test
      break;
    }

    if (state.src.charCodeAt(pos) !== marker) { continue; }

    if (state.sCount[nextLine] - state.blkIndent >= 4) {
      // closing fence should be indented less than 4 spaces
      continue;
    }

    pos = state.skipChars(pos, marker);

    // closing code fence must be at least as long as the opening one
    if (pos - mem < len) { continue; }

    // make sure tail has spaces only
    pos = state.skipSpaces(pos);

    if (pos < max) { continue; }

    haveEndMarker = true;
    // found!
    break;
  }

  // If a fence has heading spaces, they should be removed from its inner block
  len = state.sCount[startLine];

  state.line = nextLine + (haveEndMarker ? 1 : 0);

  token         = state.push('fence', 'code', 0);
  token.info    = params;
  token.content = state.getLines(startLine + 1, nextLine, len, true);
  token.markup  = markup;
  token.map     = [ startLine, state.line ];

  return true;
};

},{}],193:[function(require,module,exports){
// heading (#, ##, ...)

'use strict';

var isSpace = require('../common/utils').isSpace;


module.exports = function heading(state, startLine, endLine, silent) {
  var ch, level, tmp, token,
      pos = state.bMarks[startLine] + state.tShift[startLine],
      max = state.eMarks[startLine];

  // if it's indented more than 3 spaces, it should be a code block
  if (state.sCount[startLine] - state.blkIndent >= 4) { return false; }

  ch  = state.src.charCodeAt(pos);

  if (ch !== 0x23/* # */ || pos >= max) { return false; }

  // count heading level
  level = 1;
  ch = state.src.charCodeAt(++pos);
  while (ch === 0x23/* # */ && pos < max && level <= 6) {
    level++;
    ch = state.src.charCodeAt(++pos);
  }

  if (level > 6 || (pos < max && !isSpace(ch))) { return false; }

  if (silent) { return true; }

  // Let's cut tails like '    ###  ' from the end of string

  max = state.skipSpacesBack(max, pos);
  tmp = state.skipCharsBack(max, 0x23, pos); // #
  if (tmp > pos && isSpace(state.src.charCodeAt(tmp - 1))) {
    max = tmp;
  }

  state.line = startLine + 1;

  token        = state.push('heading_open', 'h' + String(level), 1);
  token.markup = '########'.slice(0, level);
  token.map    = [ startLine, state.line ];

  token          = state.push('inline', '', 0);
  token.content  = state.src.slice(pos, max).trim();
  token.map      = [ startLine, state.line ];
  token.children = [];

  token        = state.push('heading_close', 'h' + String(level), -1);
  token.markup = '########'.slice(0, level);

  return true;
};

},{"../common/utils":176}],194:[function(require,module,exports){
// Horizontal rule

'use strict';

var isSpace = require('../common/utils').isSpace;


module.exports = function hr(state, startLine, endLine, silent) {
  var marker, cnt, ch, token,
      pos = state.bMarks[startLine] + state.tShift[startLine],
      max = state.eMarks[startLine];

  // if it's indented more than 3 spaces, it should be a code block
  if (state.sCount[startLine] - state.blkIndent >= 4) { return false; }

  marker = state.src.charCodeAt(pos++);

  // Check hr marker
  if (marker !== 0x2A/* * */ &&
      marker !== 0x2D/* - */ &&
      marker !== 0x5F/* _ */) {
    return false;
  }

  // markers can be mixed with spaces, but there should be at least 3 of them

  cnt = 1;
  while (pos < max) {
    ch = state.src.charCodeAt(pos++);
    if (ch !== marker && !isSpace(ch)) { return false; }
    if (ch === marker) { cnt++; }
  }

  if (cnt < 3) { return false; }

  if (silent) { return true; }

  state.line = startLine + 1;

  token        = state.push('hr', 'hr', 0);
  token.map    = [ startLine, state.line ];
  token.markup = Array(cnt + 1).join(String.fromCharCode(marker));

  return true;
};

},{"../common/utils":176}],195:[function(require,module,exports){
// HTML block

'use strict';


var block_names = require('../common/html_blocks');
var HTML_OPEN_CLOSE_TAG_RE = require('../common/html_re').HTML_OPEN_CLOSE_TAG_RE;

// An array of opening and corresponding closing sequences for html tags,
// last argument defines whether it can terminate a paragraph or not
//
var HTML_SEQUENCES = [
  [ /^<(script|pre|style)(?=(\s|>|$))/i, /<\/(script|pre|style)>/i, true ],
  [ /^<!--/,        /-->/,   true ],
  [ /^<\?/,         /\?>/,   true ],
  [ /^<![A-Z]/,     />/,     true ],
  [ /^<!\[CDATA\[/, /\]\]>/, true ],
  [ new RegExp('^</?(' + block_names.join('|') + ')(?=(\\s|/?>|$))', 'i'), /^$/, true ],
  [ new RegExp(HTML_OPEN_CLOSE_TAG_RE.source + '\\s*$'),  /^$/, false ]
];


module.exports = function html_block(state, startLine, endLine, silent) {
  var i, nextLine, token, lineText,
      pos = state.bMarks[startLine] + state.tShift[startLine],
      max = state.eMarks[startLine];

  // if it's indented more than 3 spaces, it should be a code block
  if (state.sCount[startLine] - state.blkIndent >= 4) { return false; }

  if (!state.md.options.html) { return false; }

  if (state.src.charCodeAt(pos) !== 0x3C/* < */) { return false; }

  lineText = state.src.slice(pos, max);

  for (i = 0; i < HTML_SEQUENCES.length; i++) {
    if (HTML_SEQUENCES[i][0].test(lineText)) { break; }
  }

  if (i === HTML_SEQUENCES.length) { return false; }

  if (silent) {
    // true if this sequence can be a terminator, false otherwise
    return HTML_SEQUENCES[i][2];
  }

  nextLine = startLine + 1;

  // If we are here - we detected HTML block.
  // Let's roll down till block end.
  if (!HTML_SEQUENCES[i][1].test(lineText)) {
    for (; nextLine < endLine; nextLine++) {
      if (state.sCount[nextLine] < state.blkIndent) { break; }

      pos = state.bMarks[nextLine] + state.tShift[nextLine];
      max = state.eMarks[nextLine];
      lineText = state.src.slice(pos, max);

      if (HTML_SEQUENCES[i][1].test(lineText)) {
        if (lineText.length !== 0) { nextLine++; }
        break;
      }
    }
  }

  state.line = nextLine;

  token         = state.push('html_block', '', 0);
  token.map     = [ startLine, nextLine ];
  token.content = state.getLines(startLine, nextLine, state.blkIndent, true);

  return true;
};

},{"../common/html_blocks":174,"../common/html_re":175}],196:[function(require,module,exports){
// lheading (---, ===)

'use strict';


module.exports = function lheading(state, startLine, endLine/*, silent*/) {
  var content, terminate, i, l, token, pos, max, level, marker,
      nextLine = startLine + 1, oldParentType,
      terminatorRules = state.md.block.ruler.getRules('paragraph');

  // if it's indented more than 3 spaces, it should be a code block
  if (state.sCount[startLine] - state.blkIndent >= 4) { return false; }

  oldParentType = state.parentType;
  state.parentType = 'paragraph'; // use paragraph to match terminatorRules

  // jump line-by-line until empty one or EOF
  for (; nextLine < endLine && !state.isEmpty(nextLine); nextLine++) {
    // this would be a code block normally, but after paragraph
    // it's considered a lazy continuation regardless of what's there
    if (state.sCount[nextLine] - state.blkIndent > 3) { continue; }

    //
    // Check for underline in setext header
    //
    if (state.sCount[nextLine] >= state.blkIndent) {
      pos = state.bMarks[nextLine] + state.tShift[nextLine];
      max = state.eMarks[nextLine];

      if (pos < max) {
        marker = state.src.charCodeAt(pos);

        if (marker === 0x2D/* - */ || marker === 0x3D/* = */) {
          pos = state.skipChars(pos, marker);
          pos = state.skipSpaces(pos);

          if (pos >= max) {
            level = (marker === 0x3D/* = */ ? 1 : 2);
            break;
          }
        }
      }
    }

    // quirk for blockquotes, this line should already be checked by that rule
    if (state.sCount[nextLine] < 0) { continue; }

    // Some tags can terminate paragraph without empty line.
    terminate = false;
    for (i = 0, l = terminatorRules.length; i < l; i++) {
      if (terminatorRules[i](state, nextLine, endLine, true)) {
        terminate = true;
        break;
      }
    }
    if (terminate) { break; }
  }

  if (!level) {
    // Didn't find valid underline
    return false;
  }

  content = state.getLines(startLine, nextLine, state.blkIndent, false).trim();

  state.line = nextLine + 1;

  token          = state.push('heading_open', 'h' + String(level), 1);
  token.markup   = String.fromCharCode(marker);
  token.map      = [ startLine, state.line ];

  token          = state.push('inline', '', 0);
  token.content  = content;
  token.map      = [ startLine, state.line - 1 ];
  token.children = [];

  token          = state.push('heading_close', 'h' + String(level), -1);
  token.markup   = String.fromCharCode(marker);

  state.parentType = oldParentType;

  return true;
};

},{}],197:[function(require,module,exports){
// Lists

'use strict';

var isSpace = require('../common/utils').isSpace;


// Search `[-+*][\n ]`, returns next pos after marker on success
// or -1 on fail.
function skipBulletListMarker(state, startLine) {
  var marker, pos, max, ch;

  pos = state.bMarks[startLine] + state.tShift[startLine];
  max = state.eMarks[startLine];

  marker = state.src.charCodeAt(pos++);
  // Check bullet
  if (marker !== 0x2A/* * */ &&
      marker !== 0x2D/* - */ &&
      marker !== 0x2B/* + */) {
    return -1;
  }

  if (pos < max) {
    ch = state.src.charCodeAt(pos);

    if (!isSpace(ch)) {
      // " -test " - is not a list item
      return -1;
    }
  }

  return pos;
}

// Search `\d+[.)][\n ]`, returns next pos after marker on success
// or -1 on fail.
function skipOrderedListMarker(state, startLine) {
  var ch,
      start = state.bMarks[startLine] + state.tShift[startLine],
      pos = start,
      max = state.eMarks[startLine];

  // List marker should have at least 2 chars (digit + dot)
  if (pos + 1 >= max) { return -1; }

  ch = state.src.charCodeAt(pos++);

  if (ch < 0x30/* 0 */ || ch > 0x39/* 9 */) { return -1; }

  for (;;) {
    // EOL -> fail
    if (pos >= max) { return -1; }

    ch = state.src.charCodeAt(pos++);

    if (ch >= 0x30/* 0 */ && ch <= 0x39/* 9 */) {

      // List marker should have no more than 9 digits
      // (prevents integer overflow in browsers)
      if (pos - start >= 10) { return -1; }

      continue;
    }

    // found valid marker
    if (ch === 0x29/* ) */ || ch === 0x2e/* . */) {
      break;
    }

    return -1;
  }


  if (pos < max) {
    ch = state.src.charCodeAt(pos);

    if (!isSpace(ch)) {
      // " 1.test " - is not a list item
      return -1;
    }
  }
  return pos;
}

function markTightParagraphs(state, idx) {
  var i, l,
      level = state.level + 2;

  for (i = idx + 2, l = state.tokens.length - 2; i < l; i++) {
    if (state.tokens[i].level === level && state.tokens[i].type === 'paragraph_open') {
      state.tokens[i + 2].hidden = true;
      state.tokens[i].hidden = true;
      i += 2;
    }
  }
}


module.exports = function list(state, startLine, endLine, silent) {
  var ch,
      contentStart,
      i,
      indent,
      indentAfterMarker,
      initial,
      isOrdered,
      itemLines,
      l,
      listLines,
      listTokIdx,
      markerCharCode,
      markerValue,
      max,
      nextLine,
      offset,
      oldIndent,
      oldLIndent,
      oldParentType,
      oldTShift,
      oldTight,
      pos,
      posAfterMarker,
      prevEmptyEnd,
      start,
      terminate,
      terminatorRules,
      token,
      isTerminatingParagraph = false,
      tight = true;

  // if it's indented more than 3 spaces, it should be a code block
  if (state.sCount[startLine] - state.blkIndent >= 4) { return false; }

  // limit conditions when list can interrupt
  // a paragraph (validation mode only)
  if (silent && state.parentType === 'paragraph') {
    // Next list item should still terminate previous list item;
    //
    // This code can fail if plugins use blkIndent as well as lists,
    // but I hope the spec gets fixed long before that happens.
    //
    if (state.tShift[startLine] >= state.blkIndent) {
      isTerminatingParagraph = true;
    }
  }

  // Detect list type and position after marker
  if ((posAfterMarker = skipOrderedListMarker(state, startLine)) >= 0) {
    isOrdered = true;
    start = state.bMarks[startLine] + state.tShift[startLine];
    markerValue = Number(state.src.substr(start, posAfterMarker - start - 1));

    // If we're starting a new ordered list right after
    // a paragraph, it should start with 1.
    if (isTerminatingParagraph && markerValue !== 1) return false;

  } else if ((posAfterMarker = skipBulletListMarker(state, startLine)) >= 0) {
    isOrdered = false;

  } else {
    return false;
  }

  // If we're starting a new unordered list right after
  // a paragraph, first line should not be empty.
  if (isTerminatingParagraph) {
    if (state.skipSpaces(posAfterMarker) >= state.eMarks[startLine]) return false;
  }

  // We should terminate list on style change. Remember first one to compare.
  markerCharCode = state.src.charCodeAt(posAfterMarker - 1);

  // For validation mode we can terminate immediately
  if (silent) { return true; }

  // Start list
  listTokIdx = state.tokens.length;

  if (isOrdered) {
    token       = state.push('ordered_list_open', 'ol', 1);
    if (markerValue !== 1) {
      token.attrs = [ [ 'start', markerValue ] ];
    }

  } else {
    token       = state.push('bullet_list_open', 'ul', 1);
  }

  token.map    = listLines = [ startLine, 0 ];
  token.markup = String.fromCharCode(markerCharCode);

  //
  // Iterate list items
  //

  nextLine = startLine;
  prevEmptyEnd = false;
  terminatorRules = state.md.block.ruler.getRules('list');

  oldParentType = state.parentType;
  state.parentType = 'list';

  while (nextLine < endLine) {
    pos = posAfterMarker;
    max = state.eMarks[nextLine];

    initial = offset = state.sCount[nextLine] + posAfterMarker - (state.bMarks[startLine] + state.tShift[startLine]);

    while (pos < max) {
      ch = state.src.charCodeAt(pos);

      if (ch === 0x09) {
        offset += 4 - (offset + state.bsCount[nextLine]) % 4;
      } else if (ch === 0x20) {
        offset++;
      } else {
        break;
      }

      pos++;
    }

    contentStart = pos;

    if (contentStart >= max) {
      // trimming space in "-    \n  3" case, indent is 1 here
      indentAfterMarker = 1;
    } else {
      indentAfterMarker = offset - initial;
    }

    // If we have more than 4 spaces, the indent is 1
    // (the rest is just indented code block)
    if (indentAfterMarker > 4) { indentAfterMarker = 1; }

    // "  -  test"
    //  ^^^^^ - calculating total length of this thing
    indent = initial + indentAfterMarker;

    // Run subparser & write tokens
    token        = state.push('list_item_open', 'li', 1);
    token.markup = String.fromCharCode(markerCharCode);
    token.map    = itemLines = [ startLine, 0 ];

    oldIndent = state.blkIndent;
    oldTight = state.tight;
    oldTShift = state.tShift[startLine];
    oldLIndent = state.sCount[startLine];
    state.blkIndent = indent;
    state.tight = true;
    state.tShift[startLine] = contentStart - state.bMarks[startLine];
    state.sCount[startLine] = offset;

    if (contentStart >= max && state.isEmpty(startLine + 1)) {
      // workaround for this case
      // (list item is empty, list terminates before "foo"):
      // ~~~~~~~~
      //   -
      //
      //     foo
      // ~~~~~~~~
      state.line = Math.min(state.line + 2, endLine);
    } else {
      state.md.block.tokenize(state, startLine, endLine, true);
    }

    // If any of list item is tight, mark list as tight
    if (!state.tight || prevEmptyEnd) {
      tight = false;
    }
    // Item become loose if finish with empty line,
    // but we should filter last element, because it means list finish
    prevEmptyEnd = (state.line - startLine) > 1 && state.isEmpty(state.line - 1);

    state.blkIndent = oldIndent;
    state.tShift[startLine] = oldTShift;
    state.sCount[startLine] = oldLIndent;
    state.tight = oldTight;

    token        = state.push('list_item_close', 'li', -1);
    token.markup = String.fromCharCode(markerCharCode);

    nextLine = startLine = state.line;
    itemLines[1] = nextLine;
    contentStart = state.bMarks[startLine];

    if (nextLine >= endLine) { break; }

    //
    // Try to check if list is terminated or continued.
    //
    if (state.sCount[nextLine] < state.blkIndent) { break; }

    // fail if terminating block found
    terminate = false;
    for (i = 0, l = terminatorRules.length; i < l; i++) {
      if (terminatorRules[i](state, nextLine, endLine, true)) {
        terminate = true;
        break;
      }
    }
    if (terminate) { break; }

    // fail if list has another type
    if (isOrdered) {
      posAfterMarker = skipOrderedListMarker(state, nextLine);
      if (posAfterMarker < 0) { break; }
    } else {
      posAfterMarker = skipBulletListMarker(state, nextLine);
      if (posAfterMarker < 0) { break; }
    }

    if (markerCharCode !== state.src.charCodeAt(posAfterMarker - 1)) { break; }
  }

  // Finalize list
  if (isOrdered) {
    token = state.push('ordered_list_close', 'ol', -1);
  } else {
    token = state.push('bullet_list_close', 'ul', -1);
  }
  token.markup = String.fromCharCode(markerCharCode);

  listLines[1] = nextLine;
  state.line = nextLine;

  state.parentType = oldParentType;

  // mark paragraphs tight if needed
  if (tight) {
    markTightParagraphs(state, listTokIdx);
  }

  return true;
};

},{"../common/utils":176}],198:[function(require,module,exports){
// Paragraph

'use strict';


module.exports = function paragraph(state, startLine/*, endLine*/) {
  var content, terminate, i, l, token, oldParentType,
      nextLine = startLine + 1,
      terminatorRules = state.md.block.ruler.getRules('paragraph'),
      endLine = state.lineMax;

  oldParentType = state.parentType;
  state.parentType = 'paragraph';

  // jump line-by-line until empty one or EOF
  for (; nextLine < endLine && !state.isEmpty(nextLine); nextLine++) {
    // this would be a code block normally, but after paragraph
    // it's considered a lazy continuation regardless of what's there
    if (state.sCount[nextLine] - state.blkIndent > 3) { continue; }

    // quirk for blockquotes, this line should already be checked by that rule
    if (state.sCount[nextLine] < 0) { continue; }

    // Some tags can terminate paragraph without empty line.
    terminate = false;
    for (i = 0, l = terminatorRules.length; i < l; i++) {
      if (terminatorRules[i](state, nextLine, endLine, true)) {
        terminate = true;
        break;
      }
    }
    if (terminate) { break; }
  }

  content = state.getLines(startLine, nextLine, state.blkIndent, false).trim();

  state.line = nextLine;

  token          = state.push('paragraph_open', 'p', 1);
  token.map      = [ startLine, state.line ];

  token          = state.push('inline', '', 0);
  token.content  = content;
  token.map      = [ startLine, state.line ];
  token.children = [];

  token          = state.push('paragraph_close', 'p', -1);

  state.parentType = oldParentType;

  return true;
};

},{}],199:[function(require,module,exports){
'use strict';


var normalizeReference   = require('../common/utils').normalizeReference;
var isSpace              = require('../common/utils').isSpace;


module.exports = function reference(state, startLine, _endLine, silent) {
  var ch,
      destEndPos,
      destEndLineNo,
      endLine,
      href,
      i,
      l,
      label,
      labelEnd,
      oldParentType,
      res,
      start,
      str,
      terminate,
      terminatorRules,
      title,
      lines = 0,
      pos = state.bMarks[startLine] + state.tShift[startLine],
      max = state.eMarks[startLine],
      nextLine = startLine + 1;

  // if it's indented more than 3 spaces, it should be a code block
  if (state.sCount[startLine] - state.blkIndent >= 4) { return false; }

  if (state.src.charCodeAt(pos) !== 0x5B/* [ */) { return false; }

  // Simple check to quickly interrupt scan on [link](url) at the start of line.
  // Can be useful on practice: https://github.com/markdown-it/markdown-it/issues/54
  while (++pos < max) {
    if (state.src.charCodeAt(pos) === 0x5D /* ] */ &&
        state.src.charCodeAt(pos - 1) !== 0x5C/* \ */) {
      if (pos + 1 === max) { return false; }
      if (state.src.charCodeAt(pos + 1) !== 0x3A/* : */) { return false; }
      break;
    }
  }

  endLine = state.lineMax;

  // jump line-by-line until empty one or EOF
  terminatorRules = state.md.block.ruler.getRules('reference');

  oldParentType = state.parentType;
  state.parentType = 'reference';

  for (; nextLine < endLine && !state.isEmpty(nextLine); nextLine++) {
    // this would be a code block normally, but after paragraph
    // it's considered a lazy continuation regardless of what's there
    if (state.sCount[nextLine] - state.blkIndent > 3) { continue; }

    // quirk for blockquotes, this line should already be checked by that rule
    if (state.sCount[nextLine] < 0) { continue; }

    // Some tags can terminate paragraph without empty line.
    terminate = false;
    for (i = 0, l = terminatorRules.length; i < l; i++) {
      if (terminatorRules[i](state, nextLine, endLine, true)) {
        terminate = true;
        break;
      }
    }
    if (terminate) { break; }
  }

  str = state.getLines(startLine, nextLine, state.blkIndent, false).trim();
  max = str.length;

  for (pos = 1; pos < max; pos++) {
    ch = str.charCodeAt(pos);
    if (ch === 0x5B /* [ */) {
      return false;
    } else if (ch === 0x5D /* ] */) {
      labelEnd = pos;
      break;
    } else if (ch === 0x0A /* \n */) {
      lines++;
    } else if (ch === 0x5C /* \ */) {
      pos++;
      if (pos < max && str.charCodeAt(pos) === 0x0A) {
        lines++;
      }
    }
  }

  if (labelEnd < 0 || str.charCodeAt(labelEnd + 1) !== 0x3A/* : */) { return false; }

  // [label]:   destination   'title'
  //         ^^^ skip optional whitespace here
  for (pos = labelEnd + 2; pos < max; pos++) {
    ch = str.charCodeAt(pos);
    if (ch === 0x0A) {
      lines++;
    } else if (isSpace(ch)) {
      /*eslint no-empty:0*/
    } else {
      break;
    }
  }

  // [label]:   destination   'title'
  //            ^^^^^^^^^^^ parse this
  res = state.md.helpers.parseLinkDestination(str, pos, max);
  if (!res.ok) { return false; }

  href = state.md.normalizeLink(res.str);
  if (!state.md.validateLink(href)) { return false; }

  pos = res.pos;
  lines += res.lines;

  // save cursor state, we could require to rollback later
  destEndPos = pos;
  destEndLineNo = lines;

  // [label]:   destination   'title'
  //                       ^^^ skipping those spaces
  start = pos;
  for (; pos < max; pos++) {
    ch = str.charCodeAt(pos);
    if (ch === 0x0A) {
      lines++;
    } else if (isSpace(ch)) {
      /*eslint no-empty:0*/
    } else {
      break;
    }
  }

  // [label]:   destination   'title'
  //                          ^^^^^^^ parse this
  res = state.md.helpers.parseLinkTitle(str, pos, max);
  if (pos < max && start !== pos && res.ok) {
    title = res.str;
    pos = res.pos;
    lines += res.lines;
  } else {
    title = '';
    pos = destEndPos;
    lines = destEndLineNo;
  }

  // skip trailing spaces until the rest of the line
  while (pos < max) {
    ch = str.charCodeAt(pos);
    if (!isSpace(ch)) { break; }
    pos++;
  }

  if (pos < max && str.charCodeAt(pos) !== 0x0A) {
    if (title) {
      // garbage at the end of the line after title,
      // but it could still be a valid reference if we roll back
      title = '';
      pos = destEndPos;
      lines = destEndLineNo;
      while (pos < max) {
        ch = str.charCodeAt(pos);
        if (!isSpace(ch)) { break; }
        pos++;
      }
    }
  }

  if (pos < max && str.charCodeAt(pos) !== 0x0A) {
    // garbage at the end of the line
    return false;
  }

  label = normalizeReference(str.slice(1, labelEnd));
  if (!label) {
    // CommonMark 0.20 disallows empty labels
    return false;
  }

  // Reference can not terminate anything. This check is for safety only.
  /*istanbul ignore if*/
  if (silent) { return true; }

  if (typeof state.env.references === 'undefined') {
    state.env.references = {};
  }
  if (typeof state.env.references[label] === 'undefined') {
    state.env.references[label] = { title: title, href: href };
  }

  state.parentType = oldParentType;

  state.line = startLine + lines + 1;
  return true;
};

},{"../common/utils":176}],200:[function(require,module,exports){
// Parser state class

'use strict';

var Token = require('../token');
var isSpace = require('../common/utils').isSpace;


function StateBlock(src, md, env, tokens) {
  var ch, s, start, pos, len, indent, offset, indent_found;

  this.src = src;

  // link to parser instance
  this.md     = md;

  this.env = env;

  //
  // Internal state vartiables
  //

  this.tokens = tokens;

  this.bMarks = [];  // line begin offsets for fast jumps
  this.eMarks = [];  // line end offsets for fast jumps
  this.tShift = [];  // offsets of the first non-space characters (tabs not expanded)
  this.sCount = [];  // indents for each line (tabs expanded)

  // An amount of virtual spaces (tabs expanded) between beginning
  // of each line (bMarks) and real beginning of that line.
  //
  // It exists only as a hack because blockquotes override bMarks
  // losing information in the process.
  //
  // It's used only when expanding tabs, you can think about it as
  // an initial tab length, e.g. bsCount=21 applied to string `\t123`
  // means first tab should be expanded to 4-21%4 === 3 spaces.
  //
  this.bsCount = [];

  // block parser variables
  this.blkIndent  = 0; // required block content indent
                       // (for example, if we are in list)
  this.line       = 0; // line index in src
  this.lineMax    = 0; // lines count
  this.tight      = false;  // loose/tight mode for lists
  this.ddIndent   = -1; // indent of the current dd block (-1 if there isn't any)

  // can be 'blockquote', 'list', 'root', 'paragraph' or 'reference'
  // used in lists to determine if they interrupt a paragraph
  this.parentType = 'root';

  this.level = 0;

  // renderer
  this.result = '';

  // Create caches
  // Generate markers.
  s = this.src;
  indent_found = false;

  for (start = pos = indent = offset = 0, len = s.length; pos < len; pos++) {
    ch = s.charCodeAt(pos);

    if (!indent_found) {
      if (isSpace(ch)) {
        indent++;

        if (ch === 0x09) {
          offset += 4 - offset % 4;
        } else {
          offset++;
        }
        continue;
      } else {
        indent_found = true;
      }
    }

    if (ch === 0x0A || pos === len - 1) {
      if (ch !== 0x0A) { pos++; }
      this.bMarks.push(start);
      this.eMarks.push(pos);
      this.tShift.push(indent);
      this.sCount.push(offset);
      this.bsCount.push(0);

      indent_found = false;
      indent = 0;
      offset = 0;
      start = pos + 1;
    }
  }

  // Push fake entry to simplify cache bounds checks
  this.bMarks.push(s.length);
  this.eMarks.push(s.length);
  this.tShift.push(0);
  this.sCount.push(0);
  this.bsCount.push(0);

  this.lineMax = this.bMarks.length - 1; // don't count last fake line
}

// Push new token to "stream".
//
StateBlock.prototype.push = function (type, tag, nesting) {
  var token = new Token(type, tag, nesting);
  token.block = true;

  if (nesting < 0) { this.level--; }
  token.level = this.level;
  if (nesting > 0) { this.level++; }

  this.tokens.push(token);
  return token;
};

StateBlock.prototype.isEmpty = function isEmpty(line) {
  return this.bMarks[line] + this.tShift[line] >= this.eMarks[line];
};

StateBlock.prototype.skipEmptyLines = function skipEmptyLines(from) {
  for (var max = this.lineMax; from < max; from++) {
    if (this.bMarks[from] + this.tShift[from] < this.eMarks[from]) {
      break;
    }
  }
  return from;
};

// Skip spaces from given position.
StateBlock.prototype.skipSpaces = function skipSpaces(pos) {
  var ch;

  for (var max = this.src.length; pos < max; pos++) {
    ch = this.src.charCodeAt(pos);
    if (!isSpace(ch)) { break; }
  }
  return pos;
};

// Skip spaces from given position in reverse.
StateBlock.prototype.skipSpacesBack = function skipSpacesBack(pos, min) {
  if (pos <= min) { return pos; }

  while (pos > min) {
    if (!isSpace(this.src.charCodeAt(--pos))) { return pos + 1; }
  }
  return pos;
};

// Skip char codes from given position
StateBlock.prototype.skipChars = function skipChars(pos, code) {
  for (var max = this.src.length; pos < max; pos++) {
    if (this.src.charCodeAt(pos) !== code) { break; }
  }
  return pos;
};

// Skip char codes reverse from given position - 1
StateBlock.prototype.skipCharsBack = function skipCharsBack(pos, code, min) {
  if (pos <= min) { return pos; }

  while (pos > min) {
    if (code !== this.src.charCodeAt(--pos)) { return pos + 1; }
  }
  return pos;
};

// cut lines range from source.
StateBlock.prototype.getLines = function getLines(begin, end, indent, keepLastLF) {
  var i, lineIndent, ch, first, last, queue, lineStart,
      line = begin;

  if (begin >= end) {
    return '';
  }

  queue = new Array(end - begin);

  for (i = 0; line < end; line++, i++) {
    lineIndent = 0;
    lineStart = first = this.bMarks[line];

    if (line + 1 < end || keepLastLF) {
      // No need for bounds check because we have fake entry on tail.
      last = this.eMarks[line] + 1;
    } else {
      last = this.eMarks[line];
    }

    while (first < last && lineIndent < indent) {
      ch = this.src.charCodeAt(first);

      if (isSpace(ch)) {
        if (ch === 0x09) {
          lineIndent += 4 - (lineIndent + this.bsCount[line]) % 4;
        } else {
          lineIndent++;
        }
      } else if (first - lineStart < this.tShift[line]) {
        // patched tShift masked characters to look like spaces (blockquotes, list markers)
        lineIndent++;
      } else {
        break;
      }

      first++;
    }

    if (lineIndent > indent) {
      // partially expanding tabs in code blocks, e.g '\t\tfoobar'
      // with indent=2 becomes '  \tfoobar'
      queue[i] = new Array(lineIndent - indent + 1).join(' ') + this.src.slice(first, last);
    } else {
      queue[i] = this.src.slice(first, last);
    }
  }

  return queue.join('');
};

// re-export Token class to use in block rules
StateBlock.prototype.Token = Token;


module.exports = StateBlock;

},{"../common/utils":176,"../token":223}],201:[function(require,module,exports){
// GFM table, non-standard

'use strict';

var isSpace = require('../common/utils').isSpace;


function getLine(state, line) {
  var pos = state.bMarks[line] + state.blkIndent,
      max = state.eMarks[line];

  return state.src.substr(pos, max - pos);
}

function escapedSplit(str) {
  var result = [],
      pos = 0,
      max = str.length,
      ch,
      escapes = 0,
      lastPos = 0,
      backTicked = false,
      lastBackTick = 0;

  ch  = str.charCodeAt(pos);

  while (pos < max) {
    if (ch === 0x60/* ` */) {
      if (backTicked) {
        // make \` close code sequence, but not open it;
        // the reason is: `\` is correct code block
        backTicked = false;
        lastBackTick = pos;
      } else if (escapes % 2 === 0) {
        backTicked = true;
        lastBackTick = pos;
      }
    } else if (ch === 0x7c/* | */ && (escapes % 2 === 0) && !backTicked) {
      result.push(str.substring(lastPos, pos));
      lastPos = pos + 1;
    }

    if (ch === 0x5c/* \ */) {
      escapes++;
    } else {
      escapes = 0;
    }

    pos++;

    // If there was an un-closed backtick, go back to just after
    // the last backtick, but as if it was a normal character
    if (pos === max && backTicked) {
      backTicked = false;
      pos = lastBackTick + 1;
    }

    ch = str.charCodeAt(pos);
  }

  result.push(str.substring(lastPos));

  return result;
}


module.exports = function table(state, startLine, endLine, silent) {
  var ch, lineText, pos, i, nextLine, columns, columnCount, token,
      aligns, t, tableLines, tbodyLines;

  // should have at least two lines
  if (startLine + 2 > endLine) { return false; }

  nextLine = startLine + 1;

  if (state.sCount[nextLine] < state.blkIndent) { return false; }

  // if it's indented more than 3 spaces, it should be a code block
  if (state.sCount[nextLine] - state.blkIndent >= 4) { return false; }

  // first character of the second line should be '|', '-', ':',
  // and no other characters are allowed but spaces;
  // basically, this is the equivalent of /^[-:|][-:|\s]*$/ regexp

  pos = state.bMarks[nextLine] + state.tShift[nextLine];
  if (pos >= state.eMarks[nextLine]) { return false; }

  ch = state.src.charCodeAt(pos++);
  if (ch !== 0x7C/* | */ && ch !== 0x2D/* - */ && ch !== 0x3A/* : */) { return false; }

  while (pos < state.eMarks[nextLine]) {
    ch = state.src.charCodeAt(pos);

    if (ch !== 0x7C/* | */ && ch !== 0x2D/* - */ && ch !== 0x3A/* : */ && !isSpace(ch)) { return false; }

    pos++;
  }

  lineText = getLine(state, startLine + 1);

  columns = lineText.split('|');
  aligns = [];
  for (i = 0; i < columns.length; i++) {
    t = columns[i].trim();
    if (!t) {
      // allow empty columns before and after table, but not in between columns;
      // e.g. allow ` |---| `, disallow ` ---||--- `
      if (i === 0 || i === columns.length - 1) {
        continue;
      } else {
        return false;
      }
    }

    if (!/^:?-+:?$/.test(t)) { return false; }
    if (t.charCodeAt(t.length - 1) === 0x3A/* : */) {
      aligns.push(t.charCodeAt(0) === 0x3A/* : */ ? 'center' : 'right');
    } else if (t.charCodeAt(0) === 0x3A/* : */) {
      aligns.push('left');
    } else {
      aligns.push('');
    }
  }

  lineText = getLine(state, startLine).trim();
  if (lineText.indexOf('|') === -1) { return false; }
  if (state.sCount[startLine] - state.blkIndent >= 4) { return false; }
  columns = escapedSplit(lineText.replace(/^\||\|$/g, ''));

  // header row will define an amount of columns in the entire table,
  // and align row shouldn't be smaller than that (the rest of the rows can)
  columnCount = columns.length;
  if (columnCount > aligns.length) { return false; }

  if (silent) { return true; }

  token     = state.push('table_open', 'table', 1);
  token.map = tableLines = [ startLine, 0 ];

  token     = state.push('thead_open', 'thead', 1);
  token.map = [ startLine, startLine + 1 ];

  token     = state.push('tr_open', 'tr', 1);
  token.map = [ startLine, startLine + 1 ];

  for (i = 0; i < columns.length; i++) {
    token          = state.push('th_open', 'th', 1);
    token.map      = [ startLine, startLine + 1 ];
    if (aligns[i]) {
      token.attrs  = [ [ 'style', 'text-align:' + aligns[i] ] ];
    }

    token          = state.push('inline', '', 0);
    token.content  = columns[i].trim();
    token.map      = [ startLine, startLine + 1 ];
    token.children = [];

    token          = state.push('th_close', 'th', -1);
  }

  token     = state.push('tr_close', 'tr', -1);
  token     = state.push('thead_close', 'thead', -1);

  token     = state.push('tbody_open', 'tbody', 1);
  token.map = tbodyLines = [ startLine + 2, 0 ];

  for (nextLine = startLine + 2; nextLine < endLine; nextLine++) {
    if (state.sCount[nextLine] < state.blkIndent) { break; }

    lineText = getLine(state, nextLine).trim();
    if (lineText.indexOf('|') === -1) { break; }
    if (state.sCount[nextLine] - state.blkIndent >= 4) { break; }
    columns = escapedSplit(lineText.replace(/^\||\|$/g, ''));

    token = state.push('tr_open', 'tr', 1);
    for (i = 0; i < columnCount; i++) {
      token          = state.push('td_open', 'td', 1);
      if (aligns[i]) {
        token.attrs  = [ [ 'style', 'text-align:' + aligns[i] ] ];
      }

      token          = state.push('inline', '', 0);
      token.content  = columns[i] ? columns[i].trim() : '';
      token.children = [];

      token          = state.push('td_close', 'td', -1);
    }
    token = state.push('tr_close', 'tr', -1);
  }
  token = state.push('tbody_close', 'tbody', -1);
  token = state.push('table_close', 'table', -1);

  tableLines[1] = tbodyLines[1] = nextLine;
  state.line = nextLine;
  return true;
};

},{"../common/utils":176}],202:[function(require,module,exports){
'use strict';


module.exports = function block(state) {
  var token;

  if (state.inlineMode) {
    token          = new state.Token('inline', '', 0);
    token.content  = state.src;
    token.map      = [ 0, 1 ];
    token.children = [];
    state.tokens.push(token);
  } else {
    state.md.block.parse(state.src, state.md, state.env, state.tokens);
  }
};

},{}],203:[function(require,module,exports){
'use strict';

module.exports = function inline(state) {
  var tokens = state.tokens, tok, i, l;

  // Parse inlines
  for (i = 0, l = tokens.length; i < l; i++) {
    tok = tokens[i];
    if (tok.type === 'inline') {
      state.md.inline.parse(tok.content, state.md, state.env, tok.children);
    }
  }
};

},{}],204:[function(require,module,exports){
// Replace link-like texts with link nodes.
//
// Currently restricted by `md.validateLink()` to http/https/ftp
//
'use strict';


var arrayReplaceAt = require('../common/utils').arrayReplaceAt;


function isLinkOpen(str) {
  return /^<a[>\s]/i.test(str);
}
function isLinkClose(str) {
  return /^<\/a\s*>/i.test(str);
}


module.exports = function linkify(state) {
  var i, j, l, tokens, token, currentToken, nodes, ln, text, pos, lastPos,
      level, htmlLinkLevel, url, fullUrl, urlText,
      blockTokens = state.tokens,
      links;

  if (!state.md.options.linkify) { return; }

  for (j = 0, l = blockTokens.length; j < l; j++) {
    if (blockTokens[j].type !== 'inline' ||
        !state.md.linkify.pretest(blockTokens[j].content)) {
      continue;
    }

    tokens = blockTokens[j].children;

    htmlLinkLevel = 0;

    // We scan from the end, to keep position when new tags added.
    // Use reversed logic in links start/end match
    for (i = tokens.length - 1; i >= 0; i--) {
      currentToken = tokens[i];

      // Skip content of markdown links
      if (currentToken.type === 'link_close') {
        i--;
        while (tokens[i].level !== currentToken.level && tokens[i].type !== 'link_open') {
          i--;
        }
        continue;
      }

      // Skip content of html tag links
      if (currentToken.type === 'html_inline') {
        if (isLinkOpen(currentToken.content) && htmlLinkLevel > 0) {
          htmlLinkLevel--;
        }
        if (isLinkClose(currentToken.content)) {
          htmlLinkLevel++;
        }
      }
      if (htmlLinkLevel > 0) { continue; }

      if (currentToken.type === 'text' && state.md.linkify.test(currentToken.content)) {

        text = currentToken.content;
        links = state.md.linkify.match(text);

        // Now split string to nodes
        nodes = [];
        level = currentToken.level;
        lastPos = 0;

        for (ln = 0; ln < links.length; ln++) {

          url = links[ln].url;
          fullUrl = state.md.normalizeLink(url);
          if (!state.md.validateLink(fullUrl)) { continue; }

          urlText = links[ln].text;

          // Linkifier might send raw hostnames like "example.com", where url
          // starts with domain name. So we prepend http:// in those cases,
          // and remove it afterwards.
          //
          if (!links[ln].schema) {
            urlText = state.md.normalizeLinkText('http://' + urlText).replace(/^http:\/\//, '');
          } else if (links[ln].schema === 'mailto:' && !/^mailto:/i.test(urlText)) {
            urlText = state.md.normalizeLinkText('mailto:' + urlText).replace(/^mailto:/, '');
          } else {
            urlText = state.md.normalizeLinkText(urlText);
          }

          pos = links[ln].index;

          if (pos > lastPos) {
            token         = new state.Token('text', '', 0);
            token.content = text.slice(lastPos, pos);
            token.level   = level;
            nodes.push(token);
          }

          token         = new state.Token('link_open', 'a', 1);
          token.attrs   = [ [ 'href', fullUrl ] ];
          token.level   = level++;
          token.markup  = 'linkify';
          token.info    = 'auto';
          nodes.push(token);

          token         = new state.Token('text', '', 0);
          token.content = urlText;
          token.level   = level;
          nodes.push(token);

          token         = new state.Token('link_close', 'a', -1);
          token.level   = --level;
          token.markup  = 'linkify';
          token.info    = 'auto';
          nodes.push(token);

          lastPos = links[ln].lastIndex;
        }
        if (lastPos < text.length) {
          token         = new state.Token('text', '', 0);
          token.content = text.slice(lastPos);
          token.level   = level;
          nodes.push(token);
        }

        // replace current node
        blockTokens[j].children = tokens = arrayReplaceAt(tokens, i, nodes);
      }
    }
  }
};

},{"../common/utils":176}],205:[function(require,module,exports){
// Normalize input string

'use strict';


var NEWLINES_RE  = /\r[\n\u0085]?|[\u2424\u2028\u0085]/g;
var NULL_RE      = /\u0000/g;


module.exports = function inline(state) {
  var str;

  // Normalize newlines
  str = state.src.replace(NEWLINES_RE, '\n');

  // Replace NULL characters
  str = str.replace(NULL_RE, '\uFFFD');

  state.src = str;
};

},{}],206:[function(require,module,exports){
// Simple typographyc replacements
//
// (c) (C) → ©
// (tm) (TM) → ™
// (r) (R) → ®
// +- → ±
// (p) (P) -> §
// ... → … (also ?.... → ?.., !.... → !..)
// ???????? → ???, !!!!! → !!!, `,,` → `,`
// -- → &ndash;, --- → &mdash;
//
'use strict';

// TODO:
// - fractionals 1/2, 1/4, 3/4 -> ½, ¼, ¾
// - miltiplication 2 x 4 -> 2 × 4

var RARE_RE = /\+-|\.\.|\?\?\?\?|!!!!|,,|--/;

// Workaround for phantomjs - need regex without /g flag,
// or root check will fail every second time
var SCOPED_ABBR_TEST_RE = /\((c|tm|r|p)\)/i;

var SCOPED_ABBR_RE = /\((c|tm|r|p)\)/ig;
var SCOPED_ABBR = {
  c: '©',
  r: '®',
  p: '§',
  tm: '™'
};

function replaceFn(match, name) {
  return SCOPED_ABBR[name.toLowerCase()];
}

function replace_scoped(inlineTokens) {
  var i, token, inside_autolink = 0;

  for (i = inlineTokens.length - 1; i >= 0; i--) {
    token = inlineTokens[i];

    if (token.type === 'text' && !inside_autolink) {
      token.content = token.content.replace(SCOPED_ABBR_RE, replaceFn);
    }

    if (token.type === 'link_open' && token.info === 'auto') {
      inside_autolink--;
    }

    if (token.type === 'link_close' && token.info === 'auto') {
      inside_autolink++;
    }
  }
}

function replace_rare(inlineTokens) {
  var i, token, inside_autolink = 0;

  for (i = inlineTokens.length - 1; i >= 0; i--) {
    token = inlineTokens[i];

    if (token.type === 'text' && !inside_autolink) {
      if (RARE_RE.test(token.content)) {
        token.content = token.content
                    .replace(/\+-/g, '±')
                    // .., ..., ....... -> …
                    // but ?..... & !..... -> ?.. & !..
                    .replace(/\.{2,}/g, '…').replace(/([?!])…/g, '$1..')
                    .replace(/([?!]){4,}/g, '$1$1$1').replace(/,{2,}/g, ',')
                    // em-dash
                    .replace(/(^|[^-])---([^-]|$)/mg, '$1\u2014$2')
                    // en-dash
                    .replace(/(^|\s)--(\s|$)/mg, '$1\u2013$2')
                    .replace(/(^|[^-\s])--([^-\s]|$)/mg, '$1\u2013$2');
      }
    }

    if (token.type === 'link_open' && token.info === 'auto') {
      inside_autolink--;
    }

    if (token.type === 'link_close' && token.info === 'auto') {
      inside_autolink++;
    }
  }
}


module.exports = function replace(state) {
  var blkIdx;

  if (!state.md.options.typographer) { return; }

  for (blkIdx = state.tokens.length - 1; blkIdx >= 0; blkIdx--) {

    if (state.tokens[blkIdx].type !== 'inline') { continue; }

    if (SCOPED_ABBR_TEST_RE.test(state.tokens[blkIdx].content)) {
      replace_scoped(state.tokens[blkIdx].children);
    }

    if (RARE_RE.test(state.tokens[blkIdx].content)) {
      replace_rare(state.tokens[blkIdx].children);
    }

  }
};

},{}],207:[function(require,module,exports){
// Convert straight quotation marks to typographic ones
//
'use strict';


var isWhiteSpace   = require('../common/utils').isWhiteSpace;
var isPunctChar    = require('../common/utils').isPunctChar;
var isMdAsciiPunct = require('../common/utils').isMdAsciiPunct;

var QUOTE_TEST_RE = /['"]/;
var QUOTE_RE = /['"]/g;
var APOSTROPHE = '\u2019'; /* ’ */


function replaceAt(str, index, ch) {
  return str.substr(0, index) + ch + str.substr(index + 1);
}

function process_inlines(tokens, state) {
  var i, token, text, t, pos, max, thisLevel, item, lastChar, nextChar,
      isLastPunctChar, isNextPunctChar, isLastWhiteSpace, isNextWhiteSpace,
      canOpen, canClose, j, isSingle, stack, openQuote, closeQuote;

  stack = [];

  for (i = 0; i < tokens.length; i++) {
    token = tokens[i];

    thisLevel = tokens[i].level;

    for (j = stack.length - 1; j >= 0; j--) {
      if (stack[j].level <= thisLevel) { break; }
    }
    stack.length = j + 1;

    if (token.type !== 'text') { continue; }

    text = token.content;
    pos = 0;
    max = text.length;

    /*eslint no-labels:0,block-scoped-var:0*/
    OUTER:
    while (pos < max) {
      QUOTE_RE.lastIndex = pos;
      t = QUOTE_RE.exec(text);
      if (!t) { break; }

      canOpen = canClose = true;
      pos = t.index + 1;
      isSingle = (t[0] === "'");

      // Find previous character,
      // default to space if it's the beginning of the line
      //
      lastChar = 0x20;

      if (t.index - 1 >= 0) {
        lastChar = text.charCodeAt(t.index - 1);
      } else {
        for (j = i - 1; j >= 0; j--) {
          if (tokens[j].type !== 'text') { continue; }

          lastChar = tokens[j].content.charCodeAt(tokens[j].content.length - 1);
          break;
        }
      }

      // Find next character,
      // default to space if it's the end of the line
      //
      nextChar = 0x20;

      if (pos < max) {
        nextChar = text.charCodeAt(pos);
      } else {
        for (j = i + 1; j < tokens.length; j++) {
          if (tokens[j].type !== 'text') { continue; }

          nextChar = tokens[j].content.charCodeAt(0);
          break;
        }
      }

      isLastPunctChar = isMdAsciiPunct(lastChar) || isPunctChar(String.fromCharCode(lastChar));
      isNextPunctChar = isMdAsciiPunct(nextChar) || isPunctChar(String.fromCharCode(nextChar));

      isLastWhiteSpace = isWhiteSpace(lastChar);
      isNextWhiteSpace = isWhiteSpace(nextChar);

      if (isNextWhiteSpace) {
        canOpen = false;
      } else if (isNextPunctChar) {
        if (!(isLastWhiteSpace || isLastPunctChar)) {
          canOpen = false;
        }
      }

      if (isLastWhiteSpace) {
        canClose = false;
      } else if (isLastPunctChar) {
        if (!(isNextWhiteSpace || isNextPunctChar)) {
          canClose = false;
        }
      }

      if (nextChar === 0x22 /* " */ && t[0] === '"') {
        if (lastChar >= 0x30 /* 0 */ && lastChar <= 0x39 /* 9 */) {
          // special case: 1"" - count first quote as an inch
          canClose = canOpen = false;
        }
      }

      if (canOpen && canClose) {
        // treat this as the middle of the word
        canOpen = false;
        canClose = isNextPunctChar;
      }

      if (!canOpen && !canClose) {
        // middle of word
        if (isSingle) {
          token.content = replaceAt(token.content, t.index, APOSTROPHE);
        }
        continue;
      }

      if (canClose) {
        // this could be a closing quote, rewind the stack to get a match
        for (j = stack.length - 1; j >= 0; j--) {
          item = stack[j];
          if (stack[j].level < thisLevel) { break; }
          if (item.single === isSingle && stack[j].level === thisLevel) {
            item = stack[j];

            if (isSingle) {
              openQuote = state.md.options.quotes[2];
              closeQuote = state.md.options.quotes[3];
            } else {
              openQuote = state.md.options.quotes[0];
              closeQuote = state.md.options.quotes[1];
            }

            // replace token.content *before* tokens[item.token].content,
            // because, if they are pointing at the same token, replaceAt
            // could mess up indices when quote length != 1
            token.content = replaceAt(token.content, t.index, closeQuote);
            tokens[item.token].content = replaceAt(
              tokens[item.token].content, item.pos, openQuote);

            pos += closeQuote.length - 1;
            if (item.token === i) { pos += openQuote.length - 1; }

            text = token.content;
            max = text.length;

            stack.length = j;
            continue OUTER;
          }
        }
      }

      if (canOpen) {
        stack.push({
          token: i,
          pos: t.index,
          single: isSingle,
          level: thisLevel
        });
      } else if (canClose && isSingle) {
        token.content = replaceAt(token.content, t.index, APOSTROPHE);
      }
    }
  }
}


module.exports = function smartquotes(state) {
  /*eslint max-depth:0*/
  var blkIdx;

  if (!state.md.options.typographer) { return; }

  for (blkIdx = state.tokens.length - 1; blkIdx >= 0; blkIdx--) {

    if (state.tokens[blkIdx].type !== 'inline' ||
        !QUOTE_TEST_RE.test(state.tokens[blkIdx].content)) {
      continue;
    }

    process_inlines(state.tokens[blkIdx].children, state);
  }
};

},{"../common/utils":176}],208:[function(require,module,exports){
// Core state object
//
'use strict';

var Token = require('../token');


function StateCore(src, md, env) {
  this.src = src;
  this.env = env;
  this.tokens = [];
  this.inlineMode = false;
  this.md = md; // link to parser instance
}

// re-export Token class to use in core rules
StateCore.prototype.Token = Token;


module.exports = StateCore;

},{"../token":223}],209:[function(require,module,exports){
// Process autolinks '<protocol:...>'

'use strict';


/*eslint max-len:0*/
var EMAIL_RE    = /^<([a-zA-Z0-9.!#$%&'*+\/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*)>/;
var AUTOLINK_RE = /^<([a-zA-Z][a-zA-Z0-9+.\-]{1,31}):([^<>\x00-\x20]*)>/;


module.exports = function autolink(state, silent) {
  var tail, linkMatch, emailMatch, url, fullUrl, token,
      pos = state.pos;

  if (state.src.charCodeAt(pos) !== 0x3C/* < */) { return false; }

  tail = state.src.slice(pos);

  if (tail.indexOf('>') < 0) { return false; }

  if (AUTOLINK_RE.test(tail)) {
    linkMatch = tail.match(AUTOLINK_RE);

    url = linkMatch[0].slice(1, -1);
    fullUrl = state.md.normalizeLink(url);
    if (!state.md.validateLink(fullUrl)) { return false; }

    if (!silent) {
      token         = state.push('link_open', 'a', 1);
      token.attrs   = [ [ 'href', fullUrl ] ];
      token.markup  = 'autolink';
      token.info    = 'auto';

      token         = state.push('text', '', 0);
      token.content = state.md.normalizeLinkText(url);

      token         = state.push('link_close', 'a', -1);
      token.markup  = 'autolink';
      token.info    = 'auto';
    }

    state.pos += linkMatch[0].length;
    return true;
  }

  if (EMAIL_RE.test(tail)) {
    emailMatch = tail.match(EMAIL_RE);

    url = emailMatch[0].slice(1, -1);
    fullUrl = state.md.normalizeLink('mailto:' + url);
    if (!state.md.validateLink(fullUrl)) { return false; }

    if (!silent) {
      token         = state.push('link_open', 'a', 1);
      token.attrs   = [ [ 'href', fullUrl ] ];
      token.markup  = 'autolink';
      token.info    = 'auto';

      token         = state.push('text', '', 0);
      token.content = state.md.normalizeLinkText(url);

      token         = state.push('link_close', 'a', -1);
      token.markup  = 'autolink';
      token.info    = 'auto';
    }

    state.pos += emailMatch[0].length;
    return true;
  }

  return false;
};

},{}],210:[function(require,module,exports){
// Parse backticks

'use strict';

module.exports = function backtick(state, silent) {
  var start, max, marker, matchStart, matchEnd, token,
      pos = state.pos,
      ch = state.src.charCodeAt(pos);

  if (ch !== 0x60/* ` */) { return false; }

  start = pos;
  pos++;
  max = state.posMax;

  while (pos < max && state.src.charCodeAt(pos) === 0x60/* ` */) { pos++; }

  marker = state.src.slice(start, pos);

  matchStart = matchEnd = pos;

  while ((matchStart = state.src.indexOf('`', matchEnd)) !== -1) {
    matchEnd = matchStart + 1;

    while (matchEnd < max && state.src.charCodeAt(matchEnd) === 0x60/* ` */) { matchEnd++; }

    if (matchEnd - matchStart === marker.length) {
      if (!silent) {
        token         = state.push('code_inline', 'code', 0);
        token.markup  = marker;
        token.content = state.src.slice(pos, matchStart)
                                 .replace(/[ \n]+/g, ' ')
                                 .trim();
      }
      state.pos = matchEnd;
      return true;
    }
  }

  if (!silent) { state.pending += marker; }
  state.pos += marker.length;
  return true;
};

},{}],211:[function(require,module,exports){
// For each opening emphasis-like marker find a matching closing one
//
'use strict';


module.exports = function link_pairs(state) {
  var i, j, lastDelim, currDelim,
      delimiters = state.delimiters,
      max = state.delimiters.length;

  for (i = 0; i < max; i++) {
    lastDelim = delimiters[i];

    if (!lastDelim.close) { continue; }

    j = i - lastDelim.jump - 1;

    while (j >= 0) {
      currDelim = delimiters[j];

      if (currDelim.open &&
          currDelim.marker === lastDelim.marker &&
          currDelim.end < 0 &&
          currDelim.level === lastDelim.level) {

        // typeofs are for backward compatibility with plugins
        var odd_match = (currDelim.close || lastDelim.open) &&
                        typeof currDelim.length !== 'undefined' &&
                        typeof lastDelim.length !== 'undefined' &&
                        (currDelim.length + lastDelim.length) % 3 === 0;

        if (!odd_match) {
          lastDelim.jump = i - j;
          lastDelim.open = false;
          currDelim.end  = i;
          currDelim.jump = 0;
          break;
        }
      }

      j -= currDelim.jump + 1;
    }
  }
};

},{}],212:[function(require,module,exports){
// Process *this* and _that_
//
'use strict';


// Insert each marker as a separate text token, and add it to delimiter list
//
module.exports.tokenize = function emphasis(state, silent) {
  var i, scanned, token,
      start = state.pos,
      marker = state.src.charCodeAt(start);

  if (silent) { return false; }

  if (marker !== 0x5F /* _ */ && marker !== 0x2A /* * */) { return false; }

  scanned = state.scanDelims(state.pos, marker === 0x2A);

  for (i = 0; i < scanned.length; i++) {
    token         = state.push('text', '', 0);
    token.content = String.fromCharCode(marker);

    state.delimiters.push({
      // Char code of the starting marker (number).
      //
      marker: marker,

      // Total length of these series of delimiters.
      //
      length: scanned.length,

      // An amount of characters before this one that's equivalent to
      // current one. In plain English: if this delimiter does not open
      // an emphasis, neither do previous `jump` characters.
      //
      // Used to skip sequences like "*****" in one step, for 1st asterisk
      // value will be 0, for 2nd it's 1 and so on.
      //
      jump:   i,

      // A position of the token this delimiter corresponds to.
      //
      token:  state.tokens.length - 1,

      // Token level.
      //
      level:  state.level,

      // If this delimiter is matched as a valid opener, `end` will be
      // equal to its position, otherwise it's `-1`.
      //
      end:    -1,

      // Boolean flags that determine if this delimiter could open or close
      // an emphasis.
      //
      open:   scanned.can_open,
      close:  scanned.can_close
    });
  }

  state.pos += scanned.length;

  return true;
};


// Walk through delimiter list and replace text tokens with tags
//
module.exports.postProcess = function emphasis(state) {
  var i,
      startDelim,
      endDelim,
      token,
      ch,
      isStrong,
      delimiters = state.delimiters,
      max = state.delimiters.length;

  for (i = max - 1; i >= 0; i--) {
    startDelim = delimiters[i];

    if (startDelim.marker !== 0x5F/* _ */ && startDelim.marker !== 0x2A/* * */) {
      continue;
    }

    // Process only opening markers
    if (startDelim.end === -1) {
      continue;
    }

    endDelim = delimiters[startDelim.end];

    // If the previous delimiter has the same marker and is adjacent to this one,
    // merge those into one strong delimiter.
    //
    // `<em><em>whatever</em></em>` -> `<strong>whatever</strong>`
    //
    isStrong = i > 0 &&
               delimiters[i - 1].end === startDelim.end + 1 &&
               delimiters[i - 1].token === startDelim.token - 1 &&
               delimiters[startDelim.end + 1].token === endDelim.token + 1 &&
               delimiters[i - 1].marker === startDelim.marker;

    ch = String.fromCharCode(startDelim.marker);

    token         = state.tokens[startDelim.token];
    token.type    = isStrong ? 'strong_open' : 'em_open';
    token.tag     = isStrong ? 'strong' : 'em';
    token.nesting = 1;
    token.markup  = isStrong ? ch + ch : ch;
    token.content = '';

    token         = state.tokens[endDelim.token];
    token.type    = isStrong ? 'strong_close' : 'em_close';
    token.tag     = isStrong ? 'strong' : 'em';
    token.nesting = -1;
    token.markup  = isStrong ? ch + ch : ch;
    token.content = '';

    if (isStrong) {
      state.tokens[delimiters[i - 1].token].content = '';
      state.tokens[delimiters[startDelim.end + 1].token].content = '';
      i--;
    }
  }
};

},{}],213:[function(require,module,exports){
// Process html entity - &#123;, &#xAF;, &quot;, ...

'use strict';

var entities          = require('../common/entities');
var has               = require('../common/utils').has;
var isValidEntityCode = require('../common/utils').isValidEntityCode;
var fromCodePoint     = require('../common/utils').fromCodePoint;


var DIGITAL_RE = /^&#((?:x[a-f0-9]{1,8}|[0-9]{1,8}));/i;
var NAMED_RE   = /^&([a-z][a-z0-9]{1,31});/i;


module.exports = function entity(state, silent) {
  var ch, code, match, pos = state.pos, max = state.posMax;

  if (state.src.charCodeAt(pos) !== 0x26/* & */) { return false; }

  if (pos + 1 < max) {
    ch = state.src.charCodeAt(pos + 1);

    if (ch === 0x23 /* # */) {
      match = state.src.slice(pos).match(DIGITAL_RE);
      if (match) {
        if (!silent) {
          code = match[1][0].toLowerCase() === 'x' ? parseInt(match[1].slice(1), 16) : parseInt(match[1], 10);
          state.pending += isValidEntityCode(code) ? fromCodePoint(code) : fromCodePoint(0xFFFD);
        }
        state.pos += match[0].length;
        return true;
      }
    } else {
      match = state.src.slice(pos).match(NAMED_RE);
      if (match) {
        if (has(entities, match[1])) {
          if (!silent) { state.pending += entities[match[1]]; }
          state.pos += match[0].length;
          return true;
        }
      }
    }
  }

  if (!silent) { state.pending += '&'; }
  state.pos++;
  return true;
};

},{"../common/entities":173,"../common/utils":176}],214:[function(require,module,exports){
// Process escaped chars and hardbreaks

'use strict';

var isSpace = require('../common/utils').isSpace;

var ESCAPED = [];

for (var i = 0; i < 256; i++) { ESCAPED.push(0); }

'\\!"#$%&\'()*+,./:;<=>?@[]^_`{|}~-'
  .split('').forEach(function (ch) { ESCAPED[ch.charCodeAt(0)] = 1; });


module.exports = function escape(state, silent) {
  var ch, pos = state.pos, max = state.posMax;

  if (state.src.charCodeAt(pos) !== 0x5C/* \ */) { return false; }

  pos++;

  if (pos < max) {
    ch = state.src.charCodeAt(pos);

    if (ch < 256 && ESCAPED[ch] !== 0) {
      if (!silent) { state.pending += state.src[pos]; }
      state.pos += 2;
      return true;
    }

    if (ch === 0x0A) {
      if (!silent) {
        state.push('hardbreak', 'br', 0);
      }

      pos++;
      // skip leading whitespaces from next line
      while (pos < max) {
        ch = state.src.charCodeAt(pos);
        if (!isSpace(ch)) { break; }
        pos++;
      }

      state.pos = pos;
      return true;
    }
  }

  if (!silent) { state.pending += '\\'; }
  state.pos++;
  return true;
};

},{"../common/utils":176}],215:[function(require,module,exports){
// Process html tags

'use strict';


var HTML_TAG_RE = require('../common/html_re').HTML_TAG_RE;


function isLetter(ch) {
  /*eslint no-bitwise:0*/
  var lc = ch | 0x20; // to lower case
  return (lc >= 0x61/* a */) && (lc <= 0x7a/* z */);
}


module.exports = function html_inline(state, silent) {
  var ch, match, max, token,
      pos = state.pos;

  if (!state.md.options.html) { return false; }

  // Check start
  max = state.posMax;
  if (state.src.charCodeAt(pos) !== 0x3C/* < */ ||
      pos + 2 >= max) {
    return false;
  }

  // Quick fail on second char
  ch = state.src.charCodeAt(pos + 1);
  if (ch !== 0x21/* ! */ &&
      ch !== 0x3F/* ? */ &&
      ch !== 0x2F/* / */ &&
      !isLetter(ch)) {
    return false;
  }

  match = state.src.slice(pos).match(HTML_TAG_RE);
  if (!match) { return false; }

  if (!silent) {
    token         = state.push('html_inline', '', 0);
    token.content = state.src.slice(pos, pos + match[0].length);
  }
  state.pos += match[0].length;
  return true;
};

},{"../common/html_re":175}],216:[function(require,module,exports){
// Process ![image](<src> "title")

'use strict';

var normalizeReference   = require('../common/utils').normalizeReference;
var isSpace              = require('../common/utils').isSpace;


module.exports = function image(state, silent) {
  var attrs,
      code,
      content,
      label,
      labelEnd,
      labelStart,
      pos,
      ref,
      res,
      title,
      token,
      tokens,
      start,
      href = '',
      oldPos = state.pos,
      max = state.posMax;

  if (state.src.charCodeAt(state.pos) !== 0x21/* ! */) { return false; }
  if (state.src.charCodeAt(state.pos + 1) !== 0x5B/* [ */) { return false; }

  labelStart = state.pos + 2;
  labelEnd = state.md.helpers.parseLinkLabel(state, state.pos + 1, false);

  // parser failed to find ']', so it's not a valid link
  if (labelEnd < 0) { return false; }

  pos = labelEnd + 1;
  if (pos < max && state.src.charCodeAt(pos) === 0x28/* ( */) {
    //
    // Inline link
    //

    // [link](  <href>  "title"  )
    //        ^^ skipping these spaces
    pos++;
    for (; pos < max; pos++) {
      code = state.src.charCodeAt(pos);
      if (!isSpace(code) && code !== 0x0A) { break; }
    }
    if (pos >= max) { return false; }

    // [link](  <href>  "title"  )
    //          ^^^^^^ parsing link destination
    start = pos;
    res = state.md.helpers.parseLinkDestination(state.src, pos, state.posMax);
    if (res.ok) {
      href = state.md.normalizeLink(res.str);
      if (state.md.validateLink(href)) {
        pos = res.pos;
      } else {
        href = '';
      }
    }

    // [link](  <href>  "title"  )
    //                ^^ skipping these spaces
    start = pos;
    for (; pos < max; pos++) {
      code = state.src.charCodeAt(pos);
      if (!isSpace(code) && code !== 0x0A) { break; }
    }

    // [link](  <href>  "title"  )
    //                  ^^^^^^^ parsing link title
    res = state.md.helpers.parseLinkTitle(state.src, pos, state.posMax);
    if (pos < max && start !== pos && res.ok) {
      title = res.str;
      pos = res.pos;

      // [link](  <href>  "title"  )
      //                         ^^ skipping these spaces
      for (; pos < max; pos++) {
        code = state.src.charCodeAt(pos);
        if (!isSpace(code) && code !== 0x0A) { break; }
      }
    } else {
      title = '';
    }

    if (pos >= max || state.src.charCodeAt(pos) !== 0x29/* ) */) {
      state.pos = oldPos;
      return false;
    }
    pos++;
  } else {
    //
    // Link reference
    //
    if (typeof state.env.references === 'undefined') { return false; }

    if (pos < max && state.src.charCodeAt(pos) === 0x5B/* [ */) {
      start = pos + 1;
      pos = state.md.helpers.parseLinkLabel(state, pos);
      if (pos >= 0) {
        label = state.src.slice(start, pos++);
      } else {
        pos = labelEnd + 1;
      }
    } else {
      pos = labelEnd + 1;
    }

    // covers label === '' and label === undefined
    // (collapsed reference link and shortcut reference link respectively)
    if (!label) { label = state.src.slice(labelStart, labelEnd); }

    ref = state.env.references[normalizeReference(label)];
    if (!ref) {
      state.pos = oldPos;
      return false;
    }
    href = ref.href;
    title = ref.title;
  }

  //
  // We found the end of the link, and know for a fact it's a valid link;
  // so all that's left to do is to call tokenizer.
  //
  if (!silent) {
    content = state.src.slice(labelStart, labelEnd);

    state.md.inline.parse(
      content,
      state.md,
      state.env,
      tokens = []
    );

    token          = state.push('image', 'img', 0);
    token.attrs    = attrs = [ [ 'src', href ], [ 'alt', '' ] ];
    token.children = tokens;
    token.content  = content;

    if (title) {
      attrs.push([ 'title', title ]);
    }
  }

  state.pos = pos;
  state.posMax = max;
  return true;
};

},{"../common/utils":176}],217:[function(require,module,exports){
// Process [link](<to> "stuff")

'use strict';

var normalizeReference   = require('../common/utils').normalizeReference;
var isSpace              = require('../common/utils').isSpace;


module.exports = function link(state, silent) {
  var attrs,
      code,
      label,
      labelEnd,
      labelStart,
      pos,
      res,
      ref,
      title,
      token,
      href = '',
      oldPos = state.pos,
      max = state.posMax,
      start = state.pos,
      parseReference = true;

  if (state.src.charCodeAt(state.pos) !== 0x5B/* [ */) { return false; }

  labelStart = state.pos + 1;
  labelEnd = state.md.helpers.parseLinkLabel(state, state.pos, true);

  // parser failed to find ']', so it's not a valid link
  if (labelEnd < 0) { return false; }

  pos = labelEnd + 1;
  if (pos < max && state.src.charCodeAt(pos) === 0x28/* ( */) {
    //
    // Inline link
    //

    // might have found a valid shortcut link, disable reference parsing
    parseReference = false;

    // [link](  <href>  "title"  )
    //        ^^ skipping these spaces
    pos++;
    for (; pos < max; pos++) {
      code = state.src.charCodeAt(pos);
      if (!isSpace(code) && code !== 0x0A) { break; }
    }
    if (pos >= max) { return false; }

    // [link](  <href>  "title"  )
    //          ^^^^^^ parsing link destination
    start = pos;
    res = state.md.helpers.parseLinkDestination(state.src, pos, state.posMax);
    if (res.ok) {
      href = state.md.normalizeLink(res.str);
      if (state.md.validateLink(href)) {
        pos = res.pos;
      } else {
        href = '';
      }
    }

    // [link](  <href>  "title"  )
    //                ^^ skipping these spaces
    start = pos;
    for (; pos < max; pos++) {
      code = state.src.charCodeAt(pos);
      if (!isSpace(code) && code !== 0x0A) { break; }
    }

    // [link](  <href>  "title"  )
    //                  ^^^^^^^ parsing link title
    res = state.md.helpers.parseLinkTitle(state.src, pos, state.posMax);
    if (pos < max && start !== pos && res.ok) {
      title = res.str;
      pos = res.pos;

      // [link](  <href>  "title"  )
      //                         ^^ skipping these spaces
      for (; pos < max; pos++) {
        code = state.src.charCodeAt(pos);
        if (!isSpace(code) && code !== 0x0A) { break; }
      }
    } else {
      title = '';
    }

    if (pos >= max || state.src.charCodeAt(pos) !== 0x29/* ) */) {
      // parsing a valid shortcut link failed, fallback to reference
      parseReference = true;
    }
    pos++;
  }

  if (parseReference) {
    //
    // Link reference
    //
    if (typeof state.env.references === 'undefined') { return false; }

    if (pos < max && state.src.charCodeAt(pos) === 0x5B/* [ */) {
      start = pos + 1;
      pos = state.md.helpers.parseLinkLabel(state, pos);
      if (pos >= 0) {
        label = state.src.slice(start, pos++);
      } else {
        pos = labelEnd + 1;
      }
    } else {
      pos = labelEnd + 1;
    }

    // covers label === '' and label === undefined
    // (collapsed reference link and shortcut reference link respectively)
    if (!label) { label = state.src.slice(labelStart, labelEnd); }

    ref = state.env.references[normalizeReference(label)];
    if (!ref) {
      state.pos = oldPos;
      return false;
    }
    href = ref.href;
    title = ref.title;
  }

  //
  // We found the end of the link, and know for a fact it's a valid link;
  // so all that's left to do is to call tokenizer.
  //
  if (!silent) {
    state.pos = labelStart;
    state.posMax = labelEnd;

    token        = state.push('link_open', 'a', 1);
    token.attrs  = attrs = [ [ 'href', href ] ];
    if (title) {
      attrs.push([ 'title', title ]);
    }

    state.md.inline.tokenize(state);

    token        = state.push('link_close', 'a', -1);
  }

  state.pos = pos;
  state.posMax = max;
  return true;
};

},{"../common/utils":176}],218:[function(require,module,exports){
// Proceess '\n'

'use strict';

var isSpace = require('../common/utils').isSpace;


module.exports = function newline(state, silent) {
  var pmax, max, pos = state.pos;

  if (state.src.charCodeAt(pos) !== 0x0A/* \n */) { return false; }

  pmax = state.pending.length - 1;
  max = state.posMax;

  // '  \n' -> hardbreak
  // Lookup in pending chars is bad practice! Don't copy to other rules!
  // Pending string is stored in concat mode, indexed lookups will cause
  // conversion to flat mode.
  if (!silent) {
    if (pmax >= 0 && state.pending.charCodeAt(pmax) === 0x20) {
      if (pmax >= 1 && state.pending.charCodeAt(pmax - 1) === 0x20) {
        state.pending = state.pending.replace(/ +$/, '');
        state.push('hardbreak', 'br', 0);
      } else {
        state.pending = state.pending.slice(0, -1);
        state.push('softbreak', 'br', 0);
      }

    } else {
      state.push('softbreak', 'br', 0);
    }
  }

  pos++;

  // skip heading spaces for next line
  while (pos < max && isSpace(state.src.charCodeAt(pos))) { pos++; }

  state.pos = pos;
  return true;
};

},{"../common/utils":176}],219:[function(require,module,exports){
// Inline parser state

'use strict';


var Token          = require('../token');
var isWhiteSpace   = require('../common/utils').isWhiteSpace;
var isPunctChar    = require('../common/utils').isPunctChar;
var isMdAsciiPunct = require('../common/utils').isMdAsciiPunct;


function StateInline(src, md, env, outTokens) {
  this.src = src;
  this.env = env;
  this.md = md;
  this.tokens = outTokens;

  this.pos = 0;
  this.posMax = this.src.length;
  this.level = 0;
  this.pending = '';
  this.pendingLevel = 0;

  this.cache = {};        // Stores { start: end } pairs. Useful for backtrack
                          // optimization of pairs parse (emphasis, strikes).

  this.delimiters = [];   // Emphasis-like delimiters
}


// Flush pending text
//
StateInline.prototype.pushPending = function () {
  var token = new Token('text', '', 0);
  token.content = this.pending;
  token.level = this.pendingLevel;
  this.tokens.push(token);
  this.pending = '';
  return token;
};


// Push new token to "stream".
// If pending text exists - flush it as text token
//
StateInline.prototype.push = function (type, tag, nesting) {
  if (this.pending) {
    this.pushPending();
  }

  var token = new Token(type, tag, nesting);

  if (nesting < 0) { this.level--; }
  token.level = this.level;
  if (nesting > 0) { this.level++; }

  this.pendingLevel = this.level;
  this.tokens.push(token);
  return token;
};


// Scan a sequence of emphasis-like markers, and determine whether
// it can start an emphasis sequence or end an emphasis sequence.
//
//  - start - position to scan from (it should point at a valid marker);
//  - canSplitWord - determine if these markers can be found inside a word
//
StateInline.prototype.scanDelims = function (start, canSplitWord) {
  var pos = start, lastChar, nextChar, count, can_open, can_close,
      isLastWhiteSpace, isLastPunctChar,
      isNextWhiteSpace, isNextPunctChar,
      left_flanking = true,
      right_flanking = true,
      max = this.posMax,
      marker = this.src.charCodeAt(start);

  // treat beginning of the line as a whitespace
  lastChar = start > 0 ? this.src.charCodeAt(start - 1) : 0x20;

  while (pos < max && this.src.charCodeAt(pos) === marker) { pos++; }

  count = pos - start;

  // treat end of the line as a whitespace
  nextChar = pos < max ? this.src.charCodeAt(pos) : 0x20;

  isLastPunctChar = isMdAsciiPunct(lastChar) || isPunctChar(String.fromCharCode(lastChar));
  isNextPunctChar = isMdAsciiPunct(nextChar) || isPunctChar(String.fromCharCode(nextChar));

  isLastWhiteSpace = isWhiteSpace(lastChar);
  isNextWhiteSpace = isWhiteSpace(nextChar);

  if (isNextWhiteSpace) {
    left_flanking = false;
  } else if (isNextPunctChar) {
    if (!(isLastWhiteSpace || isLastPunctChar)) {
      left_flanking = false;
    }
  }

  if (isLastWhiteSpace) {
    right_flanking = false;
  } else if (isLastPunctChar) {
    if (!(isNextWhiteSpace || isNextPunctChar)) {
      right_flanking = false;
    }
  }

  if (!canSplitWord) {
    can_open  = left_flanking  && (!right_flanking || isLastPunctChar);
    can_close = right_flanking && (!left_flanking  || isNextPunctChar);
  } else {
    can_open  = left_flanking;
    can_close = right_flanking;
  }

  return {
    can_open:  can_open,
    can_close: can_close,
    length:    count
  };
};


// re-export Token class to use in block rules
StateInline.prototype.Token = Token;


module.exports = StateInline;

},{"../common/utils":176,"../token":223}],220:[function(require,module,exports){
// ~~strike through~~
//
'use strict';


// Insert each marker as a separate text token, and add it to delimiter list
//
module.exports.tokenize = function strikethrough(state, silent) {
  var i, scanned, token, len, ch,
      start = state.pos,
      marker = state.src.charCodeAt(start);

  if (silent) { return false; }

  if (marker !== 0x7E/* ~ */) { return false; }

  scanned = state.scanDelims(state.pos, true);
  len = scanned.length;
  ch = String.fromCharCode(marker);

  if (len < 2) { return false; }

  if (len % 2) {
    token         = state.push('text', '', 0);
    token.content = ch;
    len--;
  }

  for (i = 0; i < len; i += 2) {
    token         = state.push('text', '', 0);
    token.content = ch + ch;

    state.delimiters.push({
      marker: marker,
      jump:   i,
      token:  state.tokens.length - 1,
      level:  state.level,
      end:    -1,
      open:   scanned.can_open,
      close:  scanned.can_close
    });
  }

  state.pos += scanned.length;

  return true;
};


// Walk through delimiter list and replace text tokens with tags
//
module.exports.postProcess = function strikethrough(state) {
  var i, j,
      startDelim,
      endDelim,
      token,
      loneMarkers = [],
      delimiters = state.delimiters,
      max = state.delimiters.length;

  for (i = 0; i < max; i++) {
    startDelim = delimiters[i];

    if (startDelim.marker !== 0x7E/* ~ */) {
      continue;
    }

    if (startDelim.end === -1) {
      continue;
    }

    endDelim = delimiters[startDelim.end];

    token         = state.tokens[startDelim.token];
    token.type    = 's_open';
    token.tag     = 's';
    token.nesting = 1;
    token.markup  = '~~';
    token.content = '';

    token         = state.tokens[endDelim.token];
    token.type    = 's_close';
    token.tag     = 's';
    token.nesting = -1;
    token.markup  = '~~';
    token.content = '';

    if (state.tokens[endDelim.token - 1].type === 'text' &&
        state.tokens[endDelim.token - 1].content === '~') {

      loneMarkers.push(endDelim.token - 1);
    }
  }

  // If a marker sequence has an odd number of characters, it's split
  // like this: `~~~~~` -> `~` + `~~` + `~~`, leaving one marker at the
  // start of the sequence.
  //
  // So, we have to move all those markers after subsequent s_close tags.
  //
  while (loneMarkers.length) {
    i = loneMarkers.pop();
    j = i + 1;

    while (j < state.tokens.length && state.tokens[j].type === 's_close') {
      j++;
    }

    j--;

    if (i !== j) {
      token = state.tokens[j];
      state.tokens[j] = state.tokens[i];
      state.tokens[i] = token;
    }
  }
};

},{}],221:[function(require,module,exports){
// Skip text characters for text token, place those to pending buffer
// and increment current pos

'use strict';


// Rule to skip pure text
// '{}$%@~+=:' reserved for extensions

// !, ", #, $, %, &, ', (, ), *, +, ,, -, ., /, :, ;, <, =, >, ?, @, [, \, ], ^, _, `, {, |, }, or ~

// !!!! Don't confuse with "Markdown ASCII Punctuation" chars
// http://spec.commonmark.org/0.15/#ascii-punctuation-character
function isTerminatorChar(ch) {
  switch (ch) {
    case 0x0A/* \n */:
    case 0x21/* ! */:
    case 0x23/* # */:
    case 0x24/* $ */:
    case 0x25/* % */:
    case 0x26/* & */:
    case 0x2A/* * */:
    case 0x2B/* + */:
    case 0x2D/* - */:
    case 0x3A/* : */:
    case 0x3C/* < */:
    case 0x3D/* = */:
    case 0x3E/* > */:
    case 0x40/* @ */:
    case 0x5B/* [ */:
    case 0x5C/* \ */:
    case 0x5D/* ] */:
    case 0x5E/* ^ */:
    case 0x5F/* _ */:
    case 0x60/* ` */:
    case 0x7B/* { */:
    case 0x7D/* } */:
    case 0x7E/* ~ */:
      return true;
    default:
      return false;
  }
}

module.exports = function text(state, silent) {
  var pos = state.pos;

  while (pos < state.posMax && !isTerminatorChar(state.src.charCodeAt(pos))) {
    pos++;
  }

  if (pos === state.pos) { return false; }

  if (!silent) { state.pending += state.src.slice(state.pos, pos); }

  state.pos = pos;

  return true;
};

// Alternative implementation, for memory.
//
// It costs 10% of performance, but allows extend terminators list, if place it
// to `ParcerInline` property. Probably, will switch to it sometime, such
// flexibility required.

/*
var TERMINATOR_RE = /[\n!#$%&*+\-:<=>@[\\\]^_`{}~]/;

module.exports = function text(state, silent) {
  var pos = state.pos,
      idx = state.src.slice(pos).search(TERMINATOR_RE);

  // first char is terminator -> empty text
  if (idx === 0) { return false; }

  // no terminator -> text till end of string
  if (idx < 0) {
    if (!silent) { state.pending += state.src.slice(pos); }
    state.pos = state.src.length;
    return true;
  }

  if (!silent) { state.pending += state.src.slice(pos, pos + idx); }

  state.pos += idx;

  return true;
};*/

},{}],222:[function(require,module,exports){
// Merge adjacent text nodes into one, and re-calculate all token levels
//
'use strict';


module.exports = function text_collapse(state) {
  var curr, last,
      level = 0,
      tokens = state.tokens,
      max = state.tokens.length;

  for (curr = last = 0; curr < max; curr++) {
    // re-calculate levels
    level += tokens[curr].nesting;
    tokens[curr].level = level;

    if (tokens[curr].type === 'text' &&
        curr + 1 < max &&
        tokens[curr + 1].type === 'text') {

      // collapse two adjacent text nodes
      tokens[curr + 1].content = tokens[curr].content + tokens[curr + 1].content;
    } else {
      if (curr !== last) { tokens[last] = tokens[curr]; }

      last++;
    }
  }

  if (curr !== last) {
    tokens.length = last;
  }
};

},{}],223:[function(require,module,exports){
// Token class

'use strict';


/**
 * class Token
 **/

/**
 * new Token(type, tag, nesting)
 *
 * Create new token and fill passed properties.
 **/
function Token(type, tag, nesting) {
  /**
   * Token#type -> String
   *
   * Type of the token (string, e.g. "paragraph_open")
   **/
  this.type     = type;

  /**
   * Token#tag -> String
   *
   * html tag name, e.g. "p"
   **/
  this.tag      = tag;

  /**
   * Token#attrs -> Array
   *
   * Html attributes. Format: `[ [ name1, value1 ], [ name2, value2 ] ]`
   **/
  this.attrs    = null;

  /**
   * Token#map -> Array
   *
   * Source map info. Format: `[ line_begin, line_end ]`
   **/
  this.map      = null;

  /**
   * Token#nesting -> Number
   *
   * Level change (number in {-1, 0, 1} set), where:
   *
   * -  `1` means the tag is opening
   * -  `0` means the tag is self-closing
   * - `-1` means the tag is closing
   **/
  this.nesting  = nesting;

  /**
   * Token#level -> Number
   *
   * nesting level, the same as `state.level`
   **/
  this.level    = 0;

  /**
   * Token#children -> Array
   *
   * An array of child nodes (inline and img tokens)
   **/
  this.children = null;

  /**
   * Token#content -> String
   *
   * In a case of self-closing tag (code, html, fence, etc.),
   * it has contents of this tag.
   **/
  this.content  = '';

  /**
   * Token#markup -> String
   *
   * '*' or '_' for emphasis, fence string for fence, etc.
   **/
  this.markup   = '';

  /**
   * Token#info -> String
   *
   * fence infostring
   **/
  this.info     = '';

  /**
   * Token#meta -> Object
   *
   * A place for plugins to store an arbitrary data
   **/
  this.meta     = null;

  /**
   * Token#block -> Boolean
   *
   * True for block-level tokens, false for inline tokens.
   * Used in renderer to calculate line breaks
   **/
  this.block    = false;

  /**
   * Token#hidden -> Boolean
   *
   * If it's true, ignore this element when rendering. Used for tight lists
   * to hide paragraphs.
   **/
  this.hidden   = false;
}


/**
 * Token.attrIndex(name) -> Number
 *
 * Search attribute index by name.
 **/
Token.prototype.attrIndex = function attrIndex(name) {
  var attrs, i, len;

  if (!this.attrs) { return -1; }

  attrs = this.attrs;

  for (i = 0, len = attrs.length; i < len; i++) {
    if (attrs[i][0] === name) { return i; }
  }
  return -1;
};


/**
 * Token.attrPush(attrData)
 *
 * Add `[ name, value ]` attribute to list. Init attrs if necessary
 **/
Token.prototype.attrPush = function attrPush(attrData) {
  if (this.attrs) {
    this.attrs.push(attrData);
  } else {
    this.attrs = [ attrData ];
  }
};


/**
 * Token.attrSet(name, value)
 *
 * Set `name` attribute to `value`. Override old value if exists.
 **/
Token.prototype.attrSet = function attrSet(name, value) {
  var idx = this.attrIndex(name),
      attrData = [ name, value ];

  if (idx < 0) {
    this.attrPush(attrData);
  } else {
    this.attrs[idx] = attrData;
  }
};


/**
 * Token.attrGet(name)
 *
 * Get the value of attribute `name`, or null if it does not exist.
 **/
Token.prototype.attrGet = function attrGet(name) {
  var idx = this.attrIndex(name), value = null;
  if (idx >= 0) {
    value = this.attrs[idx][1];
  }
  return value;
};


/**
 * Token.attrJoin(name, value)
 *
 * Join value to existing attribute via space. Or create new attribute if not
 * exists. Useful to operate with token classes.
 **/
Token.prototype.attrJoin = function attrJoin(name, value) {
  var idx = this.attrIndex(name);

  if (idx < 0) {
    this.attrPush([ name, value ]);
  } else {
    this.attrs[idx][1] = this.attrs[idx][1] + ' ' + value;
  }
};


module.exports = Token;

},{}],224:[function(require,module,exports){

'use strict';


/* eslint-disable no-bitwise */

var decodeCache = {};

function getDecodeCache(exclude) {
  var i, ch, cache = decodeCache[exclude];
  if (cache) { return cache; }

  cache = decodeCache[exclude] = [];

  for (i = 0; i < 128; i++) {
    ch = String.fromCharCode(i);
    cache.push(ch);
  }

  for (i = 0; i < exclude.length; i++) {
    ch = exclude.charCodeAt(i);
    cache[ch] = '%' + ('0' + ch.toString(16).toUpperCase()).slice(-2);
  }

  return cache;
}


// Decode percent-encoded string.
//
function decode(string, exclude) {
  var cache;

  if (typeof exclude !== 'string') {
    exclude = decode.defaultChars;
  }

  cache = getDecodeCache(exclude);

  return string.replace(/(%[a-f0-9]{2})+/gi, function(seq) {
    var i, l, b1, b2, b3, b4, chr,
        result = '';

    for (i = 0, l = seq.length; i < l; i += 3) {
      b1 = parseInt(seq.slice(i + 1, i + 3), 16);

      if (b1 < 0x80) {
        result += cache[b1];
        continue;
      }

      if ((b1 & 0xE0) === 0xC0 && (i + 3 < l)) {
        // 110xxxxx 10xxxxxx
        b2 = parseInt(seq.slice(i + 4, i + 6), 16);

        if ((b2 & 0xC0) === 0x80) {
          chr = ((b1 << 6) & 0x7C0) | (b2 & 0x3F);

          if (chr < 0x80) {
            result += '\ufffd\ufffd';
          } else {
            result += String.fromCharCode(chr);
          }

          i += 3;
          continue;
        }
      }

      if ((b1 & 0xF0) === 0xE0 && (i + 6 < l)) {
        // 1110xxxx 10xxxxxx 10xxxxxx
        b2 = parseInt(seq.slice(i + 4, i + 6), 16);
        b3 = parseInt(seq.slice(i + 7, i + 9), 16);

        if ((b2 & 0xC0) === 0x80 && (b3 & 0xC0) === 0x80) {
          chr = ((b1 << 12) & 0xF000) | ((b2 << 6) & 0xFC0) | (b3 & 0x3F);

          if (chr < 0x800 || (chr >= 0xD800 && chr <= 0xDFFF)) {
            result += '\ufffd\ufffd\ufffd';
          } else {
            result += String.fromCharCode(chr);
          }

          i += 6;
          continue;
        }
      }

      if ((b1 & 0xF8) === 0xF0 && (i + 9 < l)) {
        // 111110xx 10xxxxxx 10xxxxxx 10xxxxxx
        b2 = parseInt(seq.slice(i + 4, i + 6), 16);
        b3 = parseInt(seq.slice(i + 7, i + 9), 16);
        b4 = parseInt(seq.slice(i + 10, i + 12), 16);

        if ((b2 & 0xC0) === 0x80 && (b3 & 0xC0) === 0x80 && (b4 & 0xC0) === 0x80) {
          chr = ((b1 << 18) & 0x1C0000) | ((b2 << 12) & 0x3F000) | ((b3 << 6) & 0xFC0) | (b4 & 0x3F);

          if (chr < 0x10000 || chr > 0x10FFFF) {
            result += '\ufffd\ufffd\ufffd\ufffd';
          } else {
            chr -= 0x10000;
            result += String.fromCharCode(0xD800 + (chr >> 10), 0xDC00 + (chr & 0x3FF));
          }

          i += 9;
          continue;
        }
      }

      result += '\ufffd';
    }

    return result;
  });
}


decode.defaultChars   = ';/?:@&=+$,#';
decode.componentChars = '';


module.exports = decode;

},{}],225:[function(require,module,exports){

'use strict';


var encodeCache = {};


// Create a lookup array where anything but characters in `chars` string
// and alphanumeric chars is percent-encoded.
//
function getEncodeCache(exclude) {
  var i, ch, cache = encodeCache[exclude];
  if (cache) { return cache; }

  cache = encodeCache[exclude] = [];

  for (i = 0; i < 128; i++) {
    ch = String.fromCharCode(i);

    if (/^[0-9a-z]$/i.test(ch)) {
      // always allow unencoded alphanumeric characters
      cache.push(ch);
    } else {
      cache.push('%' + ('0' + i.toString(16).toUpperCase()).slice(-2));
    }
  }

  for (i = 0; i < exclude.length; i++) {
    cache[exclude.charCodeAt(i)] = exclude[i];
  }

  return cache;
}


// Encode unsafe characters with percent-encoding, skipping already
// encoded sequences.
//
//  - string       - string to encode
//  - exclude      - list of characters to ignore (in addition to a-zA-Z0-9)
//  - keepEscaped  - don't encode '%' in a correct escape sequence (default: true)
//
function encode(string, exclude, keepEscaped) {
  var i, l, code, nextCode, cache,
      result = '';

  if (typeof exclude !== 'string') {
    // encode(string, keepEscaped)
    keepEscaped  = exclude;
    exclude = encode.defaultChars;
  }

  if (typeof keepEscaped === 'undefined') {
    keepEscaped = true;
  }

  cache = getEncodeCache(exclude);

  for (i = 0, l = string.length; i < l; i++) {
    code = string.charCodeAt(i);

    if (keepEscaped && code === 0x25 /* % */ && i + 2 < l) {
      if (/^[0-9a-f]{2}$/i.test(string.slice(i + 1, i + 3))) {
        result += string.slice(i, i + 3);
        i += 2;
        continue;
      }
    }

    if (code < 128) {
      result += cache[code];
      continue;
    }

    if (code >= 0xD800 && code <= 0xDFFF) {
      if (code >= 0xD800 && code <= 0xDBFF && i + 1 < l) {
        nextCode = string.charCodeAt(i + 1);
        if (nextCode >= 0xDC00 && nextCode <= 0xDFFF) {
          result += encodeURIComponent(string[i] + string[i + 1]);
          i++;
          continue;
        }
      }
      result += '%EF%BF%BD';
      continue;
    }

    result += encodeURIComponent(string[i]);
  }

  return result;
}

encode.defaultChars   = ";/?:@&=+$,-_.!~*'()#";
encode.componentChars = "-_.!~*'()";


module.exports = encode;

},{}],226:[function(require,module,exports){

'use strict';


module.exports = function format(url) {
  var result = '';

  result += url.protocol || '';
  result += url.slashes ? '//' : '';
  result += url.auth ? url.auth + '@' : '';

  if (url.hostname && url.hostname.indexOf(':') !== -1) {
    // ipv6 address
    result += '[' + url.hostname + ']';
  } else {
    result += url.hostname || '';
  }

  result += url.port ? ':' + url.port : '';
  result += url.pathname || '';
  result += url.search || '';
  result += url.hash || '';

  return result;
};

},{}],227:[function(require,module,exports){
'use strict';


module.exports.encode = require('./encode');
module.exports.decode = require('./decode');
module.exports.format = require('./format');
module.exports.parse  = require('./parse');

},{"./decode":224,"./encode":225,"./format":226,"./parse":228}],228:[function(require,module,exports){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

'use strict';

//
// Changes from joyent/node:
//
// 1. No leading slash in paths,
//    e.g. in `url.parse('http://foo?bar')` pathname is ``, not `/`
//
// 2. Backslashes are not replaced with slashes,
//    so `http:\\example.org\` is treated like a relative path
//
// 3. Trailing colon is treated like a part of the path,
//    i.e. in `http://example.org:foo` pathname is `:foo`
//
// 4. Nothing is URL-encoded in the resulting object,
//    (in joyent/node some chars in auth and paths are encoded)
//
// 5. `url.parse()` does not have `parseQueryString` argument
//
// 6. Removed extraneous result properties: `host`, `path`, `query`, etc.,
//    which can be constructed using other parts of the url.
//


function Url() {
  this.protocol = null;
  this.slashes = null;
  this.auth = null;
  this.port = null;
  this.hostname = null;
  this.hash = null;
  this.search = null;
  this.pathname = null;
}

// Reference: RFC 3986, RFC 1808, RFC 2396

// define these here so at least they only have to be
// compiled once on the first module load.
var protocolPattern = /^([a-z0-9.+-]+:)/i,
    portPattern = /:[0-9]*$/,

    // Special case for a simple path URL
    simplePathPattern = /^(\/\/?(?!\/)[^\?\s]*)(\?[^\s]*)?$/,

    // RFC 2396: characters reserved for delimiting URLs.
    // We actually just auto-escape these.
    delims = [ '<', '>', '"', '`', ' ', '\r', '\n', '\t' ],

    // RFC 2396: characters not allowed for various reasons.
    unwise = [ '{', '}', '|', '\\', '^', '`' ].concat(delims),

    // Allowed by RFCs, but cause of XSS attacks.  Always escape these.
    autoEscape = [ '\'' ].concat(unwise),
    // Characters that are never ever allowed in a hostname.
    // Note that any invalid chars are also handled, but these
    // are the ones that are *expected* to be seen, so we fast-path
    // them.
    nonHostChars = [ '%', '/', '?', ';', '#' ].concat(autoEscape),
    hostEndingChars = [ '/', '?', '#' ],
    hostnameMaxLen = 255,
    hostnamePartPattern = /^[+a-z0-9A-Z_-]{0,63}$/,
    hostnamePartStart = /^([+a-z0-9A-Z_-]{0,63})(.*)$/,
    // protocols that can allow "unsafe" and "unwise" chars.
    /* eslint-disable no-script-url */
    // protocols that never have a hostname.
    hostlessProtocol = {
      'javascript': true,
      'javascript:': true
    },
    // protocols that always contain a // bit.
    slashedProtocol = {
      'http': true,
      'https': true,
      'ftp': true,
      'gopher': true,
      'file': true,
      'http:': true,
      'https:': true,
      'ftp:': true,
      'gopher:': true,
      'file:': true
    };
    /* eslint-enable no-script-url */

function urlParse(url, slashesDenoteHost) {
  if (url && url instanceof Url) { return url; }

  var u = new Url();
  u.parse(url, slashesDenoteHost);
  return u;
}

Url.prototype.parse = function(url, slashesDenoteHost) {
  var i, l, lowerProto, hec, slashes,
      rest = url;

  // trim before proceeding.
  // This is to support parse stuff like "  http://foo.com  \n"
  rest = rest.trim();

  if (!slashesDenoteHost && url.split('#').length === 1) {
    // Try fast path regexp
    var simplePath = simplePathPattern.exec(rest);
    if (simplePath) {
      this.pathname = simplePath[1];
      if (simplePath[2]) {
        this.search = simplePath[2];
      }
      return this;
    }
  }

  var proto = protocolPattern.exec(rest);
  if (proto) {
    proto = proto[0];
    lowerProto = proto.toLowerCase();
    this.protocol = proto;
    rest = rest.substr(proto.length);
  }

  // figure out if it's got a host
  // user@server is *always* interpreted as a hostname, and url
  // resolution will treat //foo/bar as host=foo,path=bar because that's
  // how the browser resolves relative URLs.
  if (slashesDenoteHost || proto || rest.match(/^\/\/[^@\/]+@[^@\/]+/)) {
    slashes = rest.substr(0, 2) === '//';
    if (slashes && !(proto && hostlessProtocol[proto])) {
      rest = rest.substr(2);
      this.slashes = true;
    }
  }

  if (!hostlessProtocol[proto] &&
      (slashes || (proto && !slashedProtocol[proto]))) {

    // there's a hostname.
    // the first instance of /, ?, ;, or # ends the host.
    //
    // If there is an @ in the hostname, then non-host chars *are* allowed
    // to the left of the last @ sign, unless some host-ending character
    // comes *before* the @-sign.
    // URLs are obnoxious.
    //
    // ex:
    // http://a@b@c/ => user:a@b host:c
    // http://a@b?@c => user:a host:c path:/?@c

    // v0.12 TODO(isaacs): This is not quite how Chrome does things.
    // Review our test case against browsers more comprehensively.

    // find the first instance of any hostEndingChars
    var hostEnd = -1;
    for (i = 0; i < hostEndingChars.length; i++) {
      hec = rest.indexOf(hostEndingChars[i]);
      if (hec !== -1 && (hostEnd === -1 || hec < hostEnd)) {
        hostEnd = hec;
      }
    }

    // at this point, either we have an explicit point where the
    // auth portion cannot go past, or the last @ char is the decider.
    var auth, atSign;
    if (hostEnd === -1) {
      // atSign can be anywhere.
      atSign = rest.lastIndexOf('@');
    } else {
      // atSign must be in auth portion.
      // http://a@b/c@d => host:b auth:a path:/c@d
      atSign = rest.lastIndexOf('@', hostEnd);
    }

    // Now we have a portion which is definitely the auth.
    // Pull that off.
    if (atSign !== -1) {
      auth = rest.slice(0, atSign);
      rest = rest.slice(atSign + 1);
      this.auth = auth;
    }

    // the host is the remaining to the left of the first non-host char
    hostEnd = -1;
    for (i = 0; i < nonHostChars.length; i++) {
      hec = rest.indexOf(nonHostChars[i]);
      if (hec !== -1 && (hostEnd === -1 || hec < hostEnd)) {
        hostEnd = hec;
      }
    }
    // if we still have not hit it, then the entire thing is a host.
    if (hostEnd === -1) {
      hostEnd = rest.length;
    }

    if (rest[hostEnd - 1] === ':') { hostEnd--; }
    var host = rest.slice(0, hostEnd);
    rest = rest.slice(hostEnd);

    // pull out port.
    this.parseHost(host);

    // we've indicated that there is a hostname,
    // so even if it's empty, it has to be present.
    this.hostname = this.hostname || '';

    // if hostname begins with [ and ends with ]
    // assume that it's an IPv6 address.
    var ipv6Hostname = this.hostname[0] === '[' &&
        this.hostname[this.hostname.length - 1] === ']';

    // validate a little.
    if (!ipv6Hostname) {
      var hostparts = this.hostname.split(/\./);
      for (i = 0, l = hostparts.length; i < l; i++) {
        var part = hostparts[i];
        if (!part) { continue; }
        if (!part.match(hostnamePartPattern)) {
          var newpart = '';
          for (var j = 0, k = part.length; j < k; j++) {
            if (part.charCodeAt(j) > 127) {
              // we replace non-ASCII char with a temporary placeholder
              // we need this to make sure size of hostname is not
              // broken by replacing non-ASCII by nothing
              newpart += 'x';
            } else {
              newpart += part[j];
            }
          }
          // we test again with ASCII char only
          if (!newpart.match(hostnamePartPattern)) {
            var validParts = hostparts.slice(0, i);
            var notHost = hostparts.slice(i + 1);
            var bit = part.match(hostnamePartStart);
            if (bit) {
              validParts.push(bit[1]);
              notHost.unshift(bit[2]);
            }
            if (notHost.length) {
              rest = notHost.join('.') + rest;
            }
            this.hostname = validParts.join('.');
            break;
          }
        }
      }
    }

    if (this.hostname.length > hostnameMaxLen) {
      this.hostname = '';
    }

    // strip [ and ] from the hostname
    // the host field still retains them, though
    if (ipv6Hostname) {
      this.hostname = this.hostname.substr(1, this.hostname.length - 2);
    }
  }

  // chop off from the tail first.
  var hash = rest.indexOf('#');
  if (hash !== -1) {
    // got a fragment string.
    this.hash = rest.substr(hash);
    rest = rest.slice(0, hash);
  }
  var qm = rest.indexOf('?');
  if (qm !== -1) {
    this.search = rest.substr(qm);
    rest = rest.slice(0, qm);
  }
  if (rest) { this.pathname = rest; }
  if (slashedProtocol[lowerProto] &&
      this.hostname && !this.pathname) {
    this.pathname = '';
  }

  return this;
};

Url.prototype.parseHost = function(host) {
  var port = portPattern.exec(host);
  if (port) {
    port = port[0];
    if (port !== ':') {
      this.port = port.substr(1);
    }
    host = host.substr(0, host.length - port.length);
  }
  if (host) { this.hostname = host; }
};

module.exports = urlParse;

},{}],229:[function(require,module,exports){
// shim for using process in browser
var process = module.exports = {};

// cached from whatever global is present so that test runners that stub it
// don't break things.  But we need to wrap it in a try catch in case it is
// wrapped in strict mode code which doesn't define any globals.  It's inside a
// function because try/catches deoptimize in certain engines.

var cachedSetTimeout;
var cachedClearTimeout;

function defaultSetTimout() {
    throw new Error('setTimeout has not been defined');
}
function defaultClearTimeout () {
    throw new Error('clearTimeout has not been defined');
}
(function () {
    try {
        if (typeof setTimeout === 'function') {
            cachedSetTimeout = setTimeout;
        } else {
            cachedSetTimeout = defaultSetTimout;
        }
    } catch (e) {
        cachedSetTimeout = defaultSetTimout;
    }
    try {
        if (typeof clearTimeout === 'function') {
            cachedClearTimeout = clearTimeout;
        } else {
            cachedClearTimeout = defaultClearTimeout;
        }
    } catch (e) {
        cachedClearTimeout = defaultClearTimeout;
    }
} ())
function runTimeout(fun) {
    if (cachedSetTimeout === setTimeout) {
        //normal environments in sane situations
        return setTimeout(fun, 0);
    }
    // if setTimeout wasn't available but was latter defined
    if ((cachedSetTimeout === defaultSetTimout || !cachedSetTimeout) && setTimeout) {
        cachedSetTimeout = setTimeout;
        return setTimeout(fun, 0);
    }
    try {
        // when when somebody has screwed with setTimeout but no I.E. madness
        return cachedSetTimeout(fun, 0);
    } catch(e){
        try {
            // When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally
            return cachedSetTimeout.call(null, fun, 0);
        } catch(e){
            // same as above but when it's a version of I.E. that must have the global object for 'this', hopefully our context correct otherwise it will throw a global error
            return cachedSetTimeout.call(this, fun, 0);
        }
    }


}
function runClearTimeout(marker) {
    if (cachedClearTimeout === clearTimeout) {
        //normal environments in sane situations
        return clearTimeout(marker);
    }
    // if clearTimeout wasn't available but was latter defined
    if ((cachedClearTimeout === defaultClearTimeout || !cachedClearTimeout) && clearTimeout) {
        cachedClearTimeout = clearTimeout;
        return clearTimeout(marker);
    }
    try {
        // when when somebody has screwed with setTimeout but no I.E. madness
        return cachedClearTimeout(marker);
    } catch (e){
        try {
            // When we are in I.E. but the script has been evaled so I.E. doesn't  trust the global object when called normally
            return cachedClearTimeout.call(null, marker);
        } catch (e){
            // same as above but when it's a version of I.E. that must have the global object for 'this', hopefully our context correct otherwise it will throw a global error.
            // Some versions of I.E. have different rules for clearTimeout vs setTimeout
            return cachedClearTimeout.call(this, marker);
        }
    }



}
var queue = [];
var draining = false;
var currentQueue;
var queueIndex = -1;

function cleanUpNextTick() {
    if (!draining || !currentQueue) {
        return;
    }
    draining = false;
    if (currentQueue.length) {
        queue = currentQueue.concat(queue);
    } else {
        queueIndex = -1;
    }
    if (queue.length) {
        drainQueue();
    }
}

function drainQueue() {
    if (draining) {
        return;
    }
    var timeout = runTimeout(cleanUpNextTick);
    draining = true;

    var len = queue.length;
    while(len) {
        currentQueue = queue;
        queue = [];
        while (++queueIndex < len) {
            if (currentQueue) {
                currentQueue[queueIndex].run();
            }
        }
        queueIndex = -1;
        len = queue.length;
    }
    currentQueue = null;
    draining = false;
    runClearTimeout(timeout);
}

process.nextTick = function (fun) {
    var args = new Array(arguments.length - 1);
    if (arguments.length > 1) {
        for (var i = 1; i < arguments.length; i++) {
            args[i - 1] = arguments[i];
        }
    }
    queue.push(new Item(fun, args));
    if (queue.length === 1 && !draining) {
        runTimeout(drainQueue);
    }
};

// v8 likes predictable objects
function Item(fun, array) {
    this.fun = fun;
    this.array = array;
}
Item.prototype.run = function () {
    this.fun.apply(null, this.array);
};
process.title = 'browser';
process.browser = true;
process.env = {};
process.argv = [];
process.version = ''; // empty string to avoid regexp issues
process.versions = {};

function noop() {}

process.on = noop;
process.addListener = noop;
process.once = noop;
process.off = noop;
process.removeListener = noop;
process.removeAllListeners = noop;
process.emit = noop;
process.prependListener = noop;
process.prependOnceListener = noop;

process.listeners = function (name) { return [] }

process.binding = function (name) {
    throw new Error('process.binding is not supported');
};

process.cwd = function () { return '/' };
process.chdir = function (dir) {
    throw new Error('process.chdir is not supported');
};
process.umask = function() { return 0; };

},{}],230:[function(require,module,exports){
(function (process){
/**
 * Copyright 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 */

'use strict';

if (process.env.NODE_ENV !== 'production') {
  var invariant = require('fbjs/lib/invariant');
  var warning = require('fbjs/lib/warning');
  var ReactPropTypesSecret = require('./lib/ReactPropTypesSecret');
  var loggedTypeFailures = {};
}

/**
 * Assert that the values match with the type specs.
 * Error messages are memorized and will only be shown once.
 *
 * @param {object} typeSpecs Map of name to a ReactPropType
 * @param {object} values Runtime values that need to be type-checked
 * @param {string} location e.g. "prop", "context", "child context"
 * @param {string} componentName Name of the component for error messages.
 * @param {?Function} getStack Returns the component stack.
 * @private
 */
function checkPropTypes(typeSpecs, values, location, componentName, getStack) {
  if (process.env.NODE_ENV !== 'production') {
    for (var typeSpecName in typeSpecs) {
      if (typeSpecs.hasOwnProperty(typeSpecName)) {
        var error;
        // Prop type validation may throw. In case they do, we don't want to
        // fail the render phase where it didn't fail before. So we log it.
        // After these have been cleaned up, we'll let them throw.
        try {
          // This is intentionally an invariant that gets caught. It's the same
          // behavior as without this statement except with a better message.
          invariant(typeof typeSpecs[typeSpecName] === 'function', '%s: %s type `%s` is invalid; it must be a function, usually from ' + 'React.PropTypes.', componentName || 'React class', location, typeSpecName);
          error = typeSpecs[typeSpecName](values, typeSpecName, componentName, location, null, ReactPropTypesSecret);
        } catch (ex) {
          error = ex;
        }
        warning(!error || error instanceof Error, '%s: type specification of %s `%s` is invalid; the type checker ' + 'function must return `null` or an `Error` but returned a %s. ' + 'You may have forgotten to pass an argument to the type checker ' + 'creator (arrayOf, instanceOf, objectOf, oneOf, oneOfType, and ' + 'shape all require an argument).', componentName || 'React class', location, typeSpecName, typeof error);
        if (error instanceof Error && !(error.message in loggedTypeFailures)) {
          // Only monitor this failure once because there tends to be a lot of the
          // same error.
          loggedTypeFailures[error.message] = true;

          var stack = getStack ? getStack() : '';

          warning(false, 'Failed %s type: %s%s', location, error.message, stack != null ? stack : '');
        }
      }
    }
  }
}

module.exports = checkPropTypes;

}).call(this,require('_process'))
},{"./lib/ReactPropTypesSecret":234,"_process":229,"fbjs/lib/invariant":68,"fbjs/lib/warning":69}],231:[function(require,module,exports){
/**
 * Copyright 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 */

'use strict';

var emptyFunction = require('fbjs/lib/emptyFunction');
var invariant = require('fbjs/lib/invariant');

module.exports = function() {
  // Important!
  // Keep this list in sync with production version in `./factoryWithTypeCheckers.js`.
  function shim() {
    invariant(
      false,
      'Calling PropTypes validators directly is not supported by the `prop-types` package. ' +
      'Use PropTypes.checkPropTypes() to call them. ' +
      'Read more at http://fb.me/use-check-prop-types'
    );
  };
  shim.isRequired = shim;
  function getShim() {
    return shim;
  };
  var ReactPropTypes = {
    array: shim,
    bool: shim,
    func: shim,
    number: shim,
    object: shim,
    string: shim,
    symbol: shim,

    any: shim,
    arrayOf: getShim,
    element: shim,
    instanceOf: getShim,
    node: shim,
    objectOf: getShim,
    oneOf: getShim,
    oneOfType: getShim,
    shape: getShim
  };

  ReactPropTypes.checkPropTypes = emptyFunction;
  ReactPropTypes.PropTypes = ReactPropTypes;

  return ReactPropTypes;
};

},{"fbjs/lib/emptyFunction":67,"fbjs/lib/invariant":68}],232:[function(require,module,exports){
(function (process){
/**
 * Copyright 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 */

'use strict';

var emptyFunction = require('fbjs/lib/emptyFunction');
var invariant = require('fbjs/lib/invariant');
var warning = require('fbjs/lib/warning');

var ReactPropTypesSecret = require('./lib/ReactPropTypesSecret');
var checkPropTypes = require('./checkPropTypes');

module.exports = function(isValidElement, throwOnDirectAccess) {
  /* global Symbol */
  var ITERATOR_SYMBOL = typeof Symbol === 'function' && Symbol.iterator;
  var FAUX_ITERATOR_SYMBOL = '@@iterator'; // Before Symbol spec.

  /**
   * Returns the iterator method function contained on the iterable object.
   *
   * Be sure to invoke the function with the iterable as context:
   *
   *     var iteratorFn = getIteratorFn(myIterable);
   *     if (iteratorFn) {
   *       var iterator = iteratorFn.call(myIterable);
   *       ...
   *     }
   *
   * @param {?object} maybeIterable
   * @return {?function}
   */
  function getIteratorFn(maybeIterable) {
    var iteratorFn = maybeIterable && (ITERATOR_SYMBOL && maybeIterable[ITERATOR_SYMBOL] || maybeIterable[FAUX_ITERATOR_SYMBOL]);
    if (typeof iteratorFn === 'function') {
      return iteratorFn;
    }
  }

  /**
   * Collection of methods that allow declaration and validation of props that are
   * supplied to React components. Example usage:
   *
   *   var Props = require('ReactPropTypes');
   *   var MyArticle = React.createClass({
   *     propTypes: {
   *       // An optional string prop named "description".
   *       description: Props.string,
   *
   *       // A required enum prop named "category".
   *       category: Props.oneOf(['News','Photos']).isRequired,
   *
   *       // A prop named "dialog" that requires an instance of Dialog.
   *       dialog: Props.instanceOf(Dialog).isRequired
   *     },
   *     render: function() { ... }
   *   });
   *
   * A more formal specification of how these methods are used:
   *
   *   type := array|bool|func|object|number|string|oneOf([...])|instanceOf(...)
   *   decl := ReactPropTypes.{type}(.isRequired)?
   *
   * Each and every declaration produces a function with the same signature. This
   * allows the creation of custom validation functions. For example:
   *
   *  var MyLink = React.createClass({
   *    propTypes: {
   *      // An optional string or URI prop named "href".
   *      href: function(props, propName, componentName) {
   *        var propValue = props[propName];
   *        if (propValue != null && typeof propValue !== 'string' &&
   *            !(propValue instanceof URI)) {
   *          return new Error(
   *            'Expected a string or an URI for ' + propName + ' in ' +
   *            componentName
   *          );
   *        }
   *      }
   *    },
   *    render: function() {...}
   *  });
   *
   * @internal
   */

  var ANONYMOUS = '<<anonymous>>';

  // Important!
  // Keep this list in sync with production version in `./factoryWithThrowingShims.js`.
  var ReactPropTypes = {
    array: createPrimitiveTypeChecker('array'),
    bool: createPrimitiveTypeChecker('boolean'),
    func: createPrimitiveTypeChecker('function'),
    number: createPrimitiveTypeChecker('number'),
    object: createPrimitiveTypeChecker('object'),
    string: createPrimitiveTypeChecker('string'),
    symbol: createPrimitiveTypeChecker('symbol'),

    any: createAnyTypeChecker(),
    arrayOf: createArrayOfTypeChecker,
    element: createElementTypeChecker(),
    instanceOf: createInstanceTypeChecker,
    node: createNodeChecker(),
    objectOf: createObjectOfTypeChecker,
    oneOf: createEnumTypeChecker,
    oneOfType: createUnionTypeChecker,
    shape: createShapeTypeChecker
  };

  /**
   * inlined Object.is polyfill to avoid requiring consumers ship their own
   * https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/is
   */
  /*eslint-disable no-self-compare*/
  function is(x, y) {
    // SameValue algorithm
    if (x === y) {
      // Steps 1-5, 7-10
      // Steps 6.b-6.e: +0 != -0
      return x !== 0 || 1 / x === 1 / y;
    } else {
      // Step 6.a: NaN == NaN
      return x !== x && y !== y;
    }
  }
  /*eslint-enable no-self-compare*/

  /**
   * We use an Error-like object for backward compatibility as people may call
   * PropTypes directly and inspect their output. However, we don't use real
   * Errors anymore. We don't inspect their stack anyway, and creating them
   * is prohibitively expensive if they are created too often, such as what
   * happens in oneOfType() for any type before the one that matched.
   */
  function PropTypeError(message) {
    this.message = message;
    this.stack = '';
  }
  // Make `instanceof Error` still work for returned errors.
  PropTypeError.prototype = Error.prototype;

  function createChainableTypeChecker(validate) {
    if (process.env.NODE_ENV !== 'production') {
      var manualPropTypeCallCache = {};
      var manualPropTypeWarningCount = 0;
    }
    function checkType(isRequired, props, propName, componentName, location, propFullName, secret) {
      componentName = componentName || ANONYMOUS;
      propFullName = propFullName || propName;

      if (secret !== ReactPropTypesSecret) {
        if (throwOnDirectAccess) {
          // New behavior only for users of `prop-types` package
          invariant(
            false,
            'Calling PropTypes validators directly is not supported by the `prop-types` package. ' +
            'Use `PropTypes.checkPropTypes()` to call them. ' +
            'Read more at http://fb.me/use-check-prop-types'
          );
        } else if (process.env.NODE_ENV !== 'production' && typeof console !== 'undefined') {
          // Old behavior for people using React.PropTypes
          var cacheKey = componentName + ':' + propName;
          if (
            !manualPropTypeCallCache[cacheKey] &&
            // Avoid spamming the console because they are often not actionable except for lib authors
            manualPropTypeWarningCount < 3
          ) {
            warning(
              false,
              'You are manually calling a React.PropTypes validation ' +
              'function for the `%s` prop on `%s`. This is deprecated ' +
              'and will throw in the standalone `prop-types` package. ' +
              'You may be seeing this warning due to a third-party PropTypes ' +
              'library. See https://fb.me/react-warning-dont-call-proptypes ' + 'for details.',
              propFullName,
              componentName
            );
            manualPropTypeCallCache[cacheKey] = true;
            manualPropTypeWarningCount++;
          }
        }
      }
      if (props[propName] == null) {
        if (isRequired) {
          if (props[propName] === null) {
            return new PropTypeError('The ' + location + ' `' + propFullName + '` is marked as required ' + ('in `' + componentName + '`, but its value is `null`.'));
          }
          return new PropTypeError('The ' + location + ' `' + propFullName + '` is marked as required in ' + ('`' + componentName + '`, but its value is `undefined`.'));
        }
        return null;
      } else {
        return validate(props, propName, componentName, location, propFullName);
      }
    }

    var chainedCheckType = checkType.bind(null, false);
    chainedCheckType.isRequired = checkType.bind(null, true);

    return chainedCheckType;
  }

  function createPrimitiveTypeChecker(expectedType) {
    function validate(props, propName, componentName, location, propFullName, secret) {
      var propValue = props[propName];
      var propType = getPropType(propValue);
      if (propType !== expectedType) {
        // `propValue` being instance of, say, date/regexp, pass the 'object'
        // check, but we can offer a more precise error message here rather than
        // 'of type `object`'.
        var preciseType = getPreciseType(propValue);

        return new PropTypeError('Invalid ' + location + ' `' + propFullName + '` of type ' + ('`' + preciseType + '` supplied to `' + componentName + '`, expected ') + ('`' + expectedType + '`.'));
      }
      return null;
    }
    return createChainableTypeChecker(validate);
  }

  function createAnyTypeChecker() {
    return createChainableTypeChecker(emptyFunction.thatReturnsNull);
  }

  function createArrayOfTypeChecker(typeChecker) {
    function validate(props, propName, componentName, location, propFullName) {
      if (typeof typeChecker !== 'function') {
        return new PropTypeError('Property `' + propFullName + '` of component `' + componentName + '` has invalid PropType notation inside arrayOf.');
      }
      var propValue = props[propName];
      if (!Array.isArray(propValue)) {
        var propType = getPropType(propValue);
        return new PropTypeError('Invalid ' + location + ' `' + propFullName + '` of type ' + ('`' + propType + '` supplied to `' + componentName + '`, expected an array.'));
      }
      for (var i = 0; i < propValue.length; i++) {
        var error = typeChecker(propValue, i, componentName, location, propFullName + '[' + i + ']', ReactPropTypesSecret);
        if (error instanceof Error) {
          return error;
        }
      }
      return null;
    }
    return createChainableTypeChecker(validate);
  }

  function createElementTypeChecker() {
    function validate(props, propName, componentName, location, propFullName) {
      var propValue = props[propName];
      if (!isValidElement(propValue)) {
        var propType = getPropType(propValue);
        return new PropTypeError('Invalid ' + location + ' `' + propFullName + '` of type ' + ('`' + propType + '` supplied to `' + componentName + '`, expected a single ReactElement.'));
      }
      return null;
    }
    return createChainableTypeChecker(validate);
  }

  function createInstanceTypeChecker(expectedClass) {
    function validate(props, propName, componentName, location, propFullName) {
      if (!(props[propName] instanceof expectedClass)) {
        var expectedClassName = expectedClass.name || ANONYMOUS;
        var actualClassName = getClassName(props[propName]);
        return new PropTypeError('Invalid ' + location + ' `' + propFullName + '` of type ' + ('`' + actualClassName + '` supplied to `' + componentName + '`, expected ') + ('instance of `' + expectedClassName + '`.'));
      }
      return null;
    }
    return createChainableTypeChecker(validate);
  }

  function createEnumTypeChecker(expectedValues) {
    if (!Array.isArray(expectedValues)) {
      process.env.NODE_ENV !== 'production' ? warning(false, 'Invalid argument supplied to oneOf, expected an instance of array.') : void 0;
      return emptyFunction.thatReturnsNull;
    }

    function validate(props, propName, componentName, location, propFullName) {
      var propValue = props[propName];
      for (var i = 0; i < expectedValues.length; i++) {
        if (is(propValue, expectedValues[i])) {
          return null;
        }
      }

      var valuesString = JSON.stringify(expectedValues);
      return new PropTypeError('Invalid ' + location + ' `' + propFullName + '` of value `' + propValue + '` ' + ('supplied to `' + componentName + '`, expected one of ' + valuesString + '.'));
    }
    return createChainableTypeChecker(validate);
  }

  function createObjectOfTypeChecker(typeChecker) {
    function validate(props, propName, componentName, location, propFullName) {
      if (typeof typeChecker !== 'function') {
        return new PropTypeError('Property `' + propFullName + '` of component `' + componentName + '` has invalid PropType notation inside objectOf.');
      }
      var propValue = props[propName];
      var propType = getPropType(propValue);
      if (propType !== 'object') {
        return new PropTypeError('Invalid ' + location + ' `' + propFullName + '` of type ' + ('`' + propType + '` supplied to `' + componentName + '`, expected an object.'));
      }
      for (var key in propValue) {
        if (propValue.hasOwnProperty(key)) {
          var error = typeChecker(propValue, key, componentName, location, propFullName + '.' + key, ReactPropTypesSecret);
          if (error instanceof Error) {
            return error;
          }
        }
      }
      return null;
    }
    return createChainableTypeChecker(validate);
  }

  function createUnionTypeChecker(arrayOfTypeCheckers) {
    if (!Array.isArray(arrayOfTypeCheckers)) {
      process.env.NODE_ENV !== 'production' ? warning(false, 'Invalid argument supplied to oneOfType, expected an instance of array.') : void 0;
      return emptyFunction.thatReturnsNull;
    }

    function validate(props, propName, componentName, location, propFullName) {
      for (var i = 0; i < arrayOfTypeCheckers.length; i++) {
        var checker = arrayOfTypeCheckers[i];
        if (checker(props, propName, componentName, location, propFullName, ReactPropTypesSecret) == null) {
          return null;
        }
      }

      return new PropTypeError('Invalid ' + location + ' `' + propFullName + '` supplied to ' + ('`' + componentName + '`.'));
    }
    return createChainableTypeChecker(validate);
  }

  function createNodeChecker() {
    function validate(props, propName, componentName, location, propFullName) {
      if (!isNode(props[propName])) {
        return new PropTypeError('Invalid ' + location + ' `' + propFullName + '` supplied to ' + ('`' + componentName + '`, expected a ReactNode.'));
      }
      return null;
    }
    return createChainableTypeChecker(validate);
  }

  function createShapeTypeChecker(shapeTypes) {
    function validate(props, propName, componentName, location, propFullName) {
      var propValue = props[propName];
      var propType = getPropType(propValue);
      if (propType !== 'object') {
        return new PropTypeError('Invalid ' + location + ' `' + propFullName + '` of type `' + propType + '` ' + ('supplied to `' + componentName + '`, expected `object`.'));
      }
      for (var key in shapeTypes) {
        var checker = shapeTypes[key];
        if (!checker) {
          continue;
        }
        var error = checker(propValue, key, componentName, location, propFullName + '.' + key, ReactPropTypesSecret);
        if (error) {
          return error;
        }
      }
      return null;
    }
    return createChainableTypeChecker(validate);
  }

  function isNode(propValue) {
    switch (typeof propValue) {
      case 'number':
      case 'string':
      case 'undefined':
        return true;
      case 'boolean':
        return !propValue;
      case 'object':
        if (Array.isArray(propValue)) {
          return propValue.every(isNode);
        }
        if (propValue === null || isValidElement(propValue)) {
          return true;
        }

        var iteratorFn = getIteratorFn(propValue);
        if (iteratorFn) {
          var iterator = iteratorFn.call(propValue);
          var step;
          if (iteratorFn !== propValue.entries) {
            while (!(step = iterator.next()).done) {
              if (!isNode(step.value)) {
                return false;
              }
            }
          } else {
            // Iterator will provide entry [k,v] tuples rather than values.
            while (!(step = iterator.next()).done) {
              var entry = step.value;
              if (entry) {
                if (!isNode(entry[1])) {
                  return false;
                }
              }
            }
          }
        } else {
          return false;
        }

        return true;
      default:
        return false;
    }
  }

  function isSymbol(propType, propValue) {
    // Native Symbol.
    if (propType === 'symbol') {
      return true;
    }

    // 19.4.3.5 Symbol.prototype[@@toStringTag] === 'Symbol'
    if (propValue['@@toStringTag'] === 'Symbol') {
      return true;
    }

    // Fallback for non-spec compliant Symbols which are polyfilled.
    if (typeof Symbol === 'function' && propValue instanceof Symbol) {
      return true;
    }

    return false;
  }

  // Equivalent of `typeof` but with special handling for array and regexp.
  function getPropType(propValue) {
    var propType = typeof propValue;
    if (Array.isArray(propValue)) {
      return 'array';
    }
    if (propValue instanceof RegExp) {
      // Old webkits (at least until Android 4.0) return 'function' rather than
      // 'object' for typeof a RegExp. We'll normalize this here so that /bla/
      // passes PropTypes.object.
      return 'object';
    }
    if (isSymbol(propType, propValue)) {
      return 'symbol';
    }
    return propType;
  }

  // This handles more types than `getPropType`. Only used for error messages.
  // See `createPrimitiveTypeChecker`.
  function getPreciseType(propValue) {
    var propType = getPropType(propValue);
    if (propType === 'object') {
      if (propValue instanceof Date) {
        return 'date';
      } else if (propValue instanceof RegExp) {
        return 'regexp';
      }
    }
    return propType;
  }

  // Returns class name of the object, if any.
  function getClassName(propValue) {
    if (!propValue.constructor || !propValue.constructor.name) {
      return ANONYMOUS;
    }
    return propValue.constructor.name;
  }

  ReactPropTypes.checkPropTypes = checkPropTypes;
  ReactPropTypes.PropTypes = ReactPropTypes;

  return ReactPropTypes;
};

}).call(this,require('_process'))
},{"./checkPropTypes":230,"./lib/ReactPropTypesSecret":234,"_process":229,"fbjs/lib/emptyFunction":67,"fbjs/lib/invariant":68,"fbjs/lib/warning":69}],233:[function(require,module,exports){
(function (process){
/**
 * Copyright 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 */

if (process.env.NODE_ENV !== 'production') {
  var REACT_ELEMENT_TYPE = (typeof Symbol === 'function' &&
    Symbol.for &&
    Symbol.for('react.element')) ||
    0xeac7;

  var isValidElement = function(object) {
    return typeof object === 'object' &&
      object !== null &&
      object.$$typeof === REACT_ELEMENT_TYPE;
  };

  // By explicitly using `prop-types` you are opting into new development behavior.
  // http://fb.me/prop-types-in-prod
  var throwOnDirectAccess = true;
  module.exports = require('./factoryWithTypeCheckers')(isValidElement, throwOnDirectAccess);
} else {
  // By explicitly using `prop-types` you are opting into new production behavior.
  // http://fb.me/prop-types-in-prod
  module.exports = require('./factoryWithThrowingShims')();
}

}).call(this,require('_process'))
},{"./factoryWithThrowingShims":231,"./factoryWithTypeCheckers":232,"_process":229}],234:[function(require,module,exports){
/**
 * Copyright 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 */

'use strict';

var ReactPropTypesSecret = 'SECRET_DO_NOT_PASS_THIS_OR_YOU_WILL_BE_FIRED';

module.exports = ReactPropTypesSecret;

},{}],235:[function(require,module,exports){
(function (global){
/*! https://mths.be/punycode v1.4.1 by @mathias */
;(function(root) {

	/** Detect free variables */
	var freeExports = typeof exports == 'object' && exports &&
		!exports.nodeType && exports;
	var freeModule = typeof module == 'object' && module &&
		!module.nodeType && module;
	var freeGlobal = typeof global == 'object' && global;
	if (
		freeGlobal.global === freeGlobal ||
		freeGlobal.window === freeGlobal ||
		freeGlobal.self === freeGlobal
	) {
		root = freeGlobal;
	}

	/**
	 * The `punycode` object.
	 * @name punycode
	 * @type Object
	 */
	var punycode,

	/** Highest positive signed 32-bit float value */
	maxInt = 2147483647, // aka. 0x7FFFFFFF or 2^31-1

	/** Bootstring parameters */
	base = 36,
	tMin = 1,
	tMax = 26,
	skew = 38,
	damp = 700,
	initialBias = 72,
	initialN = 128, // 0x80
	delimiter = '-', // '\x2D'

	/** Regular expressions */
	regexPunycode = /^xn--/,
	regexNonASCII = /[^\x20-\x7E]/, // unprintable ASCII chars + non-ASCII chars
	regexSeparators = /[\x2E\u3002\uFF0E\uFF61]/g, // RFC 3490 separators

	/** Error messages */
	errors = {
		'overflow': 'Overflow: input needs wider integers to process',
		'not-basic': 'Illegal input >= 0x80 (not a basic code point)',
		'invalid-input': 'Invalid input'
	},

	/** Convenience shortcuts */
	baseMinusTMin = base - tMin,
	floor = Math.floor,
	stringFromCharCode = String.fromCharCode,

	/** Temporary variable */
	key;

	/*--------------------------------------------------------------------------*/

	/**
	 * A generic error utility function.
	 * @private
	 * @param {String} type The error type.
	 * @returns {Error} Throws a `RangeError` with the applicable error message.
	 */
	function error(type) {
		throw new RangeError(errors[type]);
	}

	/**
	 * A generic `Array#map` utility function.
	 * @private
	 * @param {Array} array The array to iterate over.
	 * @param {Function} callback The function that gets called for every array
	 * item.
	 * @returns {Array} A new array of values returned by the callback function.
	 */
	function map(array, fn) {
		var length = array.length;
		var result = [];
		while (length--) {
			result[length] = fn(array[length]);
		}
		return result;
	}

	/**
	 * A simple `Array#map`-like wrapper to work with domain name strings or email
	 * addresses.
	 * @private
	 * @param {String} domain The domain name or email address.
	 * @param {Function} callback The function that gets called for every
	 * character.
	 * @returns {Array} A new string of characters returned by the callback
	 * function.
	 */
	function mapDomain(string, fn) {
		var parts = string.split('@');
		var result = '';
		if (parts.length > 1) {
			// In email addresses, only the domain name should be punycoded. Leave
			// the local part (i.e. everything up to `@`) intact.
			result = parts[0] + '@';
			string = parts[1];
		}
		// Avoid `split(regex)` for IE8 compatibility. See #17.
		string = string.replace(regexSeparators, '\x2E');
		var labels = string.split('.');
		var encoded = map(labels, fn).join('.');
		return result + encoded;
	}

	/**
	 * Creates an array containing the numeric code points of each Unicode
	 * character in the string. While JavaScript uses UCS-2 internally,
	 * this function will convert a pair of surrogate halves (each of which
	 * UCS-2 exposes as separate characters) into a single code point,
	 * matching UTF-16.
	 * @see `punycode.ucs2.encode`
	 * @see <https://mathiasbynens.be/notes/javascript-encoding>
	 * @memberOf punycode.ucs2
	 * @name decode
	 * @param {String} string The Unicode input string (UCS-2).
	 * @returns {Array} The new array of code points.
	 */
	function ucs2decode(string) {
		var output = [],
		    counter = 0,
		    length = string.length,
		    value,
		    extra;
		while (counter < length) {
			value = string.charCodeAt(counter++);
			if (value >= 0xD800 && value <= 0xDBFF && counter < length) {
				// high surrogate, and there is a next character
				extra = string.charCodeAt(counter++);
				if ((extra & 0xFC00) == 0xDC00) { // low surrogate
					output.push(((value & 0x3FF) << 10) + (extra & 0x3FF) + 0x10000);
				} else {
					// unmatched surrogate; only append this code unit, in case the next
					// code unit is the high surrogate of a surrogate pair
					output.push(value);
					counter--;
				}
			} else {
				output.push(value);
			}
		}
		return output;
	}

	/**
	 * Creates a string based on an array of numeric code points.
	 * @see `punycode.ucs2.decode`
	 * @memberOf punycode.ucs2
	 * @name encode
	 * @param {Array} codePoints The array of numeric code points.
	 * @returns {String} The new Unicode string (UCS-2).
	 */
	function ucs2encode(array) {
		return map(array, function(value) {
			var output = '';
			if (value > 0xFFFF) {
				value -= 0x10000;
				output += stringFromCharCode(value >>> 10 & 0x3FF | 0xD800);
				value = 0xDC00 | value & 0x3FF;
			}
			output += stringFromCharCode(value);
			return output;
		}).join('');
	}

	/**
	 * Converts a basic code point into a digit/integer.
	 * @see `digitToBasic()`
	 * @private
	 * @param {Number} codePoint The basic numeric code point value.
	 * @returns {Number} The numeric value of a basic code point (for use in
	 * representing integers) in the range `0` to `base - 1`, or `base` if
	 * the code point does not represent a value.
	 */
	function basicToDigit(codePoint) {
		if (codePoint - 48 < 10) {
			return codePoint - 22;
		}
		if (codePoint - 65 < 26) {
			return codePoint - 65;
		}
		if (codePoint - 97 < 26) {
			return codePoint - 97;
		}
		return base;
	}

	/**
	 * Converts a digit/integer into a basic code point.
	 * @see `basicToDigit()`
	 * @private
	 * @param {Number} digit The numeric value of a basic code point.
	 * @returns {Number} The basic code point whose value (when used for
	 * representing integers) is `digit`, which needs to be in the range
	 * `0` to `base - 1`. If `flag` is non-zero, the uppercase form is
	 * used; else, the lowercase form is used. The behavior is undefined
	 * if `flag` is non-zero and `digit` has no uppercase form.
	 */
	function digitToBasic(digit, flag) {
		//  0..25 map to ASCII a..z or A..Z
		// 26..35 map to ASCII 0..9
		return digit + 22 + 75 * (digit < 26) - ((flag != 0) << 5);
	}

	/**
	 * Bias adaptation function as per section 3.4 of RFC 3492.
	 * https://tools.ietf.org/html/rfc3492#section-3.4
	 * @private
	 */
	function adapt(delta, numPoints, firstTime) {
		var k = 0;
		delta = firstTime ? floor(delta / damp) : delta >> 1;
		delta += floor(delta / numPoints);
		for (/* no initialization */; delta > baseMinusTMin * tMax >> 1; k += base) {
			delta = floor(delta / baseMinusTMin);
		}
		return floor(k + (baseMinusTMin + 1) * delta / (delta + skew));
	}

	/**
	 * Converts a Punycode string of ASCII-only symbols to a string of Unicode
	 * symbols.
	 * @memberOf punycode
	 * @param {String} input The Punycode string of ASCII-only symbols.
	 * @returns {String} The resulting string of Unicode symbols.
	 */
	function decode(input) {
		// Don't use UCS-2
		var output = [],
		    inputLength = input.length,
		    out,
		    i = 0,
		    n = initialN,
		    bias = initialBias,
		    basic,
		    j,
		    index,
		    oldi,
		    w,
		    k,
		    digit,
		    t,
		    /** Cached calculation results */
		    baseMinusT;

		// Handle the basic code points: let `basic` be the number of input code
		// points before the last delimiter, or `0` if there is none, then copy
		// the first basic code points to the output.

		basic = input.lastIndexOf(delimiter);
		if (basic < 0) {
			basic = 0;
		}

		for (j = 0; j < basic; ++j) {
			// if it's not a basic code point
			if (input.charCodeAt(j) >= 0x80) {
				error('not-basic');
			}
			output.push(input.charCodeAt(j));
		}

		// Main decoding loop: start just after the last delimiter if any basic code
		// points were copied; start at the beginning otherwise.

		for (index = basic > 0 ? basic + 1 : 0; index < inputLength; /* no final expression */) {

			// `index` is the index of the next character to be consumed.
			// Decode a generalized variable-length integer into `delta`,
			// which gets added to `i`. The overflow checking is easier
			// if we increase `i` as we go, then subtract off its starting
			// value at the end to obtain `delta`.
			for (oldi = i, w = 1, k = base; /* no condition */; k += base) {

				if (index >= inputLength) {
					error('invalid-input');
				}

				digit = basicToDigit(input.charCodeAt(index++));

				if (digit >= base || digit > floor((maxInt - i) / w)) {
					error('overflow');
				}

				i += digit * w;
				t = k <= bias ? tMin : (k >= bias + tMax ? tMax : k - bias);

				if (digit < t) {
					break;
				}

				baseMinusT = base - t;
				if (w > floor(maxInt / baseMinusT)) {
					error('overflow');
				}

				w *= baseMinusT;

			}

			out = output.length + 1;
			bias = adapt(i - oldi, out, oldi == 0);

			// `i` was supposed to wrap around from `out` to `0`,
			// incrementing `n` each time, so we'll fix that now:
			if (floor(i / out) > maxInt - n) {
				error('overflow');
			}

			n += floor(i / out);
			i %= out;

			// Insert `n` at position `i` of the output
			output.splice(i++, 0, n);

		}

		return ucs2encode(output);
	}

	/**
	 * Converts a string of Unicode symbols (e.g. a domain name label) to a
	 * Punycode string of ASCII-only symbols.
	 * @memberOf punycode
	 * @param {String} input The string of Unicode symbols.
	 * @returns {String} The resulting Punycode string of ASCII-only symbols.
	 */
	function encode(input) {
		var n,
		    delta,
		    handledCPCount,
		    basicLength,
		    bias,
		    j,
		    m,
		    q,
		    k,
		    t,
		    currentValue,
		    output = [],
		    /** `inputLength` will hold the number of code points in `input`. */
		    inputLength,
		    /** Cached calculation results */
		    handledCPCountPlusOne,
		    baseMinusT,
		    qMinusT;

		// Convert the input in UCS-2 to Unicode
		input = ucs2decode(input);

		// Cache the length
		inputLength = input.length;

		// Initialize the state
		n = initialN;
		delta = 0;
		bias = initialBias;

		// Handle the basic code points
		for (j = 0; j < inputLength; ++j) {
			currentValue = input[j];
			if (currentValue < 0x80) {
				output.push(stringFromCharCode(currentValue));
			}
		}

		handledCPCount = basicLength = output.length;

		// `handledCPCount` is the number of code points that have been handled;
		// `basicLength` is the number of basic code points.

		// Finish the basic string - if it is not empty - with a delimiter
		if (basicLength) {
			output.push(delimiter);
		}

		// Main encoding loop:
		while (handledCPCount < inputLength) {

			// All non-basic code points < n have been handled already. Find the next
			// larger one:
			for (m = maxInt, j = 0; j < inputLength; ++j) {
				currentValue = input[j];
				if (currentValue >= n && currentValue < m) {
					m = currentValue;
				}
			}

			// Increase `delta` enough to advance the decoder's <n,i> state to <m,0>,
			// but guard against overflow
			handledCPCountPlusOne = handledCPCount + 1;
			if (m - n > floor((maxInt - delta) / handledCPCountPlusOne)) {
				error('overflow');
			}

			delta += (m - n) * handledCPCountPlusOne;
			n = m;

			for (j = 0; j < inputLength; ++j) {
				currentValue = input[j];

				if (currentValue < n && ++delta > maxInt) {
					error('overflow');
				}

				if (currentValue == n) {
					// Represent delta as a generalized variable-length integer
					for (q = delta, k = base; /* no condition */; k += base) {
						t = k <= bias ? tMin : (k >= bias + tMax ? tMax : k - bias);
						if (q < t) {
							break;
						}
						qMinusT = q - t;
						baseMinusT = base - t;
						output.push(
							stringFromCharCode(digitToBasic(t + qMinusT % baseMinusT, 0))
						);
						q = floor(qMinusT / baseMinusT);
					}

					output.push(stringFromCharCode(digitToBasic(q, 0)));
					bias = adapt(delta, handledCPCountPlusOne, handledCPCount == basicLength);
					delta = 0;
					++handledCPCount;
				}
			}

			++delta;
			++n;

		}
		return output.join('');
	}

	/**
	 * Converts a Punycode string representing a domain name or an email address
	 * to Unicode. Only the Punycoded parts of the input will be converted, i.e.
	 * it doesn't matter if you call it on a string that has already been
	 * converted to Unicode.
	 * @memberOf punycode
	 * @param {String} input The Punycoded domain name or email address to
	 * convert to Unicode.
	 * @returns {String} The Unicode representation of the given Punycode
	 * string.
	 */
	function toUnicode(input) {
		return mapDomain(input, function(string) {
			return regexPunycode.test(string)
				? decode(string.slice(4).toLowerCase())
				: string;
		});
	}

	/**
	 * Converts a Unicode string representing a domain name or an email address to
	 * Punycode. Only the non-ASCII parts of the domain name will be converted,
	 * i.e. it doesn't matter if you call it with a domain that's already in
	 * ASCII.
	 * @memberOf punycode
	 * @param {String} input The domain name or email address to convert, as a
	 * Unicode string.
	 * @returns {String} The Punycode representation of the given domain name or
	 * email address.
	 */
	function toASCII(input) {
		return mapDomain(input, function(string) {
			return regexNonASCII.test(string)
				? 'xn--' + encode(string)
				: string;
		});
	}

	/*--------------------------------------------------------------------------*/

	/** Define the public API */
	punycode = {
		/**
		 * A string representing the current Punycode.js version number.
		 * @memberOf punycode
		 * @type String
		 */
		'version': '1.4.1',
		/**
		 * An object of methods to convert from JavaScript's internal character
		 * representation (UCS-2) to Unicode code points, and back.
		 * @see <https://mathiasbynens.be/notes/javascript-encoding>
		 * @memberOf punycode
		 * @type Object
		 */
		'ucs2': {
			'decode': ucs2decode,
			'encode': ucs2encode
		},
		'decode': decode,
		'encode': encode,
		'toASCII': toASCII,
		'toUnicode': toUnicode
	};

	/** Expose `punycode` */
	// Some AMD build optimizers, like r.js, check for specific condition patterns
	// like the following:
	if (
		typeof define == 'function' &&
		typeof define.amd == 'object' &&
		define.amd
	) {
		define('punycode', function() {
			return punycode;
		});
	} else if (freeExports && freeModule) {
		if (module.exports == freeExports) {
			// in Node.js, io.js, or RingoJS v0.8.0+
			freeModule.exports = punycode;
		} else {
			// in Narwhal or RingoJS v0.7.0-
			for (key in punycode) {
				punycode.hasOwnProperty(key) && (freeExports[key] = punycode[key]);
			}
		}
	} else {
		// in Rhino or a web browser
		root.punycode = punycode;
	}

}(this));

}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{}],236:[function(require,module,exports){
module.exports=/[\0-\x1F\x7F-\x9F]/
},{}],237:[function(require,module,exports){
module.exports=/[\xAD\u0600-\u0605\u061C\u06DD\u070F\u08E2\u180E\u200B-\u200F\u202A-\u202E\u2060-\u2064\u2066-\u206F\uFEFF\uFFF9-\uFFFB]|\uD804\uDCBD|\uD82F[\uDCA0-\uDCA3]|\uD834[\uDD73-\uDD7A]|\uDB40[\uDC01\uDC20-\uDC7F]/
},{}],238:[function(require,module,exports){
module.exports=/[!-#%-\*,-/:;\?@\[-\]_\{\}\xA1\xA7\xAB\xB6\xB7\xBB\xBF\u037E\u0387\u055A-\u055F\u0589\u058A\u05BE\u05C0\u05C3\u05C6\u05F3\u05F4\u0609\u060A\u060C\u060D\u061B\u061E\u061F\u066A-\u066D\u06D4\u0700-\u070D\u07F7-\u07F9\u0830-\u083E\u085E\u0964\u0965\u0970\u0AF0\u0DF4\u0E4F\u0E5A\u0E5B\u0F04-\u0F12\u0F14\u0F3A-\u0F3D\u0F85\u0FD0-\u0FD4\u0FD9\u0FDA\u104A-\u104F\u10FB\u1360-\u1368\u1400\u166D\u166E\u169B\u169C\u16EB-\u16ED\u1735\u1736\u17D4-\u17D6\u17D8-\u17DA\u1800-\u180A\u1944\u1945\u1A1E\u1A1F\u1AA0-\u1AA6\u1AA8-\u1AAD\u1B5A-\u1B60\u1BFC-\u1BFF\u1C3B-\u1C3F\u1C7E\u1C7F\u1CC0-\u1CC7\u1CD3\u2010-\u2027\u2030-\u2043\u2045-\u2051\u2053-\u205E\u207D\u207E\u208D\u208E\u2308-\u230B\u2329\u232A\u2768-\u2775\u27C5\u27C6\u27E6-\u27EF\u2983-\u2998\u29D8-\u29DB\u29FC\u29FD\u2CF9-\u2CFC\u2CFE\u2CFF\u2D70\u2E00-\u2E2E\u2E30-\u2E44\u3001-\u3003\u3008-\u3011\u3014-\u301F\u3030\u303D\u30A0\u30FB\uA4FE\uA4FF\uA60D-\uA60F\uA673\uA67E\uA6F2-\uA6F7\uA874-\uA877\uA8CE\uA8CF\uA8F8-\uA8FA\uA8FC\uA92E\uA92F\uA95F\uA9C1-\uA9CD\uA9DE\uA9DF\uAA5C-\uAA5F\uAADE\uAADF\uAAF0\uAAF1\uABEB\uFD3E\uFD3F\uFE10-\uFE19\uFE30-\uFE52\uFE54-\uFE61\uFE63\uFE68\uFE6A\uFE6B\uFF01-\uFF03\uFF05-\uFF0A\uFF0C-\uFF0F\uFF1A\uFF1B\uFF1F\uFF20\uFF3B-\uFF3D\uFF3F\uFF5B\uFF5D\uFF5F-\uFF65]|\uD800[\uDD00-\uDD02\uDF9F\uDFD0]|\uD801\uDD6F|\uD802[\uDC57\uDD1F\uDD3F\uDE50-\uDE58\uDE7F\uDEF0-\uDEF6\uDF39-\uDF3F\uDF99-\uDF9C]|\uD804[\uDC47-\uDC4D\uDCBB\uDCBC\uDCBE-\uDCC1\uDD40-\uDD43\uDD74\uDD75\uDDC5-\uDDC9\uDDCD\uDDDB\uDDDD-\uDDDF\uDE38-\uDE3D\uDEA9]|\uD805[\uDC4B-\uDC4F\uDC5B\uDC5D\uDCC6\uDDC1-\uDDD7\uDE41-\uDE43\uDE60-\uDE6C\uDF3C-\uDF3E]|\uD807[\uDC41-\uDC45\uDC70\uDC71]|\uD809[\uDC70-\uDC74]|\uD81A[\uDE6E\uDE6F\uDEF5\uDF37-\uDF3B\uDF44]|\uD82F\uDC9F|\uD836[\uDE87-\uDE8B]|\uD83A[\uDD5E\uDD5F]/
},{}],239:[function(require,module,exports){
module.exports=/[ \xA0\u1680\u2000-\u200A\u202F\u205F\u3000]/
},{}],240:[function(require,module,exports){
'use strict';

exports.Any = require('./properties/Any/regex');
exports.Cc  = require('./categories/Cc/regex');
exports.Cf  = require('./categories/Cf/regex');
exports.P   = require('./categories/P/regex');
exports.Z   = require('./categories/Z/regex');

},{"./categories/Cc/regex":236,"./categories/Cf/regex":237,"./categories/P/regex":238,"./categories/Z/regex":239,"./properties/Any/regex":241}],241:[function(require,module,exports){
module.exports=/[\0-\uD7FF\uE000-\uFFFF]|[\uD800-\uDBFF][\uDC00-\uDFFF]|[\uD800-\uDBFF](?![\uDC00-\uDFFF])|(?:[^\uD800-\uDBFF]|^)[\uDC00-\uDFFF]/
},{}],242:[function(require,module,exports){
if (typeof Object.create === 'function') {
  // implementation from standard node.js 'util' module
  module.exports = function inherits(ctor, superCtor) {
    ctor.super_ = superCtor
    ctor.prototype = Object.create(superCtor.prototype, {
      constructor: {
        value: ctor,
        enumerable: false,
        writable: true,
        configurable: true
      }
    });
  };
} else {
  // old school shim for old browsers
  module.exports = function inherits(ctor, superCtor) {
    ctor.super_ = superCtor
    var TempCtor = function () {}
    TempCtor.prototype = superCtor.prototype
    ctor.prototype = new TempCtor()
    ctor.prototype.constructor = ctor
  }
}

},{}],243:[function(require,module,exports){
module.exports = function isBuffer(arg) {
  return arg && typeof arg === 'object'
    && typeof arg.copy === 'function'
    && typeof arg.fill === 'function'
    && typeof arg.readUInt8 === 'function';
}
},{}],244:[function(require,module,exports){
(function (process,global){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

var formatRegExp = /%[sdj%]/g;
exports.format = function(f) {
  if (!isString(f)) {
    var objects = [];
    for (var i = 0; i < arguments.length; i++) {
      objects.push(inspect(arguments[i]));
    }
    return objects.join(' ');
  }

  var i = 1;
  var args = arguments;
  var len = args.length;
  var str = String(f).replace(formatRegExp, function(x) {
    if (x === '%%') return '%';
    if (i >= len) return x;
    switch (x) {
      case '%s': return String(args[i++]);
      case '%d': return Number(args[i++]);
      case '%j':
        try {
          return JSON.stringify(args[i++]);
        } catch (_) {
          return '[Circular]';
        }
      default:
        return x;
    }
  });
  for (var x = args[i]; i < len; x = args[++i]) {
    if (isNull(x) || !isObject(x)) {
      str += ' ' + x;
    } else {
      str += ' ' + inspect(x);
    }
  }
  return str;
};


// Mark that a method should not be used.
// Returns a modified function which warns once by default.
// If --no-deprecation is set, then it is a no-op.
exports.deprecate = function(fn, msg) {
  // Allow for deprecating things in the process of starting up.
  if (isUndefined(global.process)) {
    return function() {
      return exports.deprecate(fn, msg).apply(this, arguments);
    };
  }

  if (process.noDeprecation === true) {
    return fn;
  }

  var warned = false;
  function deprecated() {
    if (!warned) {
      if (process.throwDeprecation) {
        throw new Error(msg);
      } else if (process.traceDeprecation) {
        console.trace(msg);
      } else {
        console.error(msg);
      }
      warned = true;
    }
    return fn.apply(this, arguments);
  }

  return deprecated;
};


var debugs = {};
var debugEnviron;
exports.debuglog = function(set) {
  if (isUndefined(debugEnviron))
    debugEnviron = process.env.NODE_DEBUG || '';
  set = set.toUpperCase();
  if (!debugs[set]) {
    if (new RegExp('\\b' + set + '\\b', 'i').test(debugEnviron)) {
      var pid = process.pid;
      debugs[set] = function() {
        var msg = exports.format.apply(exports, arguments);
        console.error('%s %d: %s', set, pid, msg);
      };
    } else {
      debugs[set] = function() {};
    }
  }
  return debugs[set];
};


/**
 * Echos the value of a value. Tries to print the value out
 * in the best way possible given the different types.
 *
 * @param {Object} obj The object to print out.
 * @param {Object} opts Optional options object that alters the output.
 */
/* legacy: obj, showHidden, depth, colors*/
function inspect(obj, opts) {
  // default options
  var ctx = {
    seen: [],
    stylize: stylizeNoColor
  };
  // legacy...
  if (arguments.length >= 3) ctx.depth = arguments[2];
  if (arguments.length >= 4) ctx.colors = arguments[3];
  if (isBoolean(opts)) {
    // legacy...
    ctx.showHidden = opts;
  } else if (opts) {
    // got an "options" object
    exports._extend(ctx, opts);
  }
  // set default options
  if (isUndefined(ctx.showHidden)) ctx.showHidden = false;
  if (isUndefined(ctx.depth)) ctx.depth = 2;
  if (isUndefined(ctx.colors)) ctx.colors = false;
  if (isUndefined(ctx.customInspect)) ctx.customInspect = true;
  if (ctx.colors) ctx.stylize = stylizeWithColor;
  return formatValue(ctx, obj, ctx.depth);
}
exports.inspect = inspect;


// http://en.wikipedia.org/wiki/ANSI_escape_code#graphics
inspect.colors = {
  'bold' : [1, 22],
  'italic' : [3, 23],
  'underline' : [4, 24],
  'inverse' : [7, 27],
  'white' : [37, 39],
  'grey' : [90, 39],
  'black' : [30, 39],
  'blue' : [34, 39],
  'cyan' : [36, 39],
  'green' : [32, 39],
  'magenta' : [35, 39],
  'red' : [31, 39],
  'yellow' : [33, 39]
};

// Don't use 'blue' not visible on cmd.exe
inspect.styles = {
  'special': 'cyan',
  'number': 'yellow',
  'boolean': 'yellow',
  'undefined': 'grey',
  'null': 'bold',
  'string': 'green',
  'date': 'magenta',
  // "name": intentionally not styling
  'regexp': 'red'
};


function stylizeWithColor(str, styleType) {
  var style = inspect.styles[styleType];

  if (style) {
    return '\u001b[' + inspect.colors[style][0] + 'm' + str +
           '\u001b[' + inspect.colors[style][1] + 'm';
  } else {
    return str;
  }
}


function stylizeNoColor(str, styleType) {
  return str;
}


function arrayToHash(array) {
  var hash = {};

  array.forEach(function(val, idx) {
    hash[val] = true;
  });

  return hash;
}


function formatValue(ctx, value, recurseTimes) {
  // Provide a hook for user-specified inspect functions.
  // Check that value is an object with an inspect function on it
  if (ctx.customInspect &&
      value &&
      isFunction(value.inspect) &&
      // Filter out the util module, it's inspect function is special
      value.inspect !== exports.inspect &&
      // Also filter out any prototype objects using the circular check.
      !(value.constructor && value.constructor.prototype === value)) {
    var ret = value.inspect(recurseTimes, ctx);
    if (!isString(ret)) {
      ret = formatValue(ctx, ret, recurseTimes);
    }
    return ret;
  }

  // Primitive types cannot have properties
  var primitive = formatPrimitive(ctx, value);
  if (primitive) {
    return primitive;
  }

  // Look up the keys of the object.
  var keys = Object.keys(value);
  var visibleKeys = arrayToHash(keys);

  if (ctx.showHidden) {
    keys = Object.getOwnPropertyNames(value);
  }

  // IE doesn't make error fields non-enumerable
  // http://msdn.microsoft.com/en-us/library/ie/dww52sbt(v=vs.94).aspx
  if (isError(value)
      && (keys.indexOf('message') >= 0 || keys.indexOf('description') >= 0)) {
    return formatError(value);
  }

  // Some type of object without properties can be shortcutted.
  if (keys.length === 0) {
    if (isFunction(value)) {
      var name = value.name ? ': ' + value.name : '';
      return ctx.stylize('[Function' + name + ']', 'special');
    }
    if (isRegExp(value)) {
      return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp');
    }
    if (isDate(value)) {
      return ctx.stylize(Date.prototype.toString.call(value), 'date');
    }
    if (isError(value)) {
      return formatError(value);
    }
  }

  var base = '', array = false, braces = ['{', '}'];

  // Make Array say that they are Array
  if (isArray(value)) {
    array = true;
    braces = ['[', ']'];
  }

  // Make functions say that they are functions
  if (isFunction(value)) {
    var n = value.name ? ': ' + value.name : '';
    base = ' [Function' + n + ']';
  }

  // Make RegExps say that they are RegExps
  if (isRegExp(value)) {
    base = ' ' + RegExp.prototype.toString.call(value);
  }

  // Make dates with properties first say the date
  if (isDate(value)) {
    base = ' ' + Date.prototype.toUTCString.call(value);
  }

  // Make error with message first say the error
  if (isError(value)) {
    base = ' ' + formatError(value);
  }

  if (keys.length === 0 && (!array || value.length == 0)) {
    return braces[0] + base + braces[1];
  }

  if (recurseTimes < 0) {
    if (isRegExp(value)) {
      return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp');
    } else {
      return ctx.stylize('[Object]', 'special');
    }
  }

  ctx.seen.push(value);

  var output;
  if (array) {
    output = formatArray(ctx, value, recurseTimes, visibleKeys, keys);
  } else {
    output = keys.map(function(key) {
      return formatProperty(ctx, value, recurseTimes, visibleKeys, key, array);
    });
  }

  ctx.seen.pop();

  return reduceToSingleString(output, base, braces);
}


function formatPrimitive(ctx, value) {
  if (isUndefined(value))
    return ctx.stylize('undefined', 'undefined');
  if (isString(value)) {
    var simple = '\'' + JSON.stringify(value).replace(/^"|"$/g, '')
                                             .replace(/'/g, "\\'")
                                             .replace(/\\"/g, '"') + '\'';
    return ctx.stylize(simple, 'string');
  }
  if (isNumber(value))
    return ctx.stylize('' + value, 'number');
  if (isBoolean(value))
    return ctx.stylize('' + value, 'boolean');
  // For some reason typeof null is "object", so special case here.
  if (isNull(value))
    return ctx.stylize('null', 'null');
}


function formatError(value) {
  return '[' + Error.prototype.toString.call(value) + ']';
}


function formatArray(ctx, value, recurseTimes, visibleKeys, keys) {
  var output = [];
  for (var i = 0, l = value.length; i < l; ++i) {
    if (hasOwnProperty(value, String(i))) {
      output.push(formatProperty(ctx, value, recurseTimes, visibleKeys,
          String(i), true));
    } else {
      output.push('');
    }
  }
  keys.forEach(function(key) {
    if (!key.match(/^\d+$/)) {
      output.push(formatProperty(ctx, value, recurseTimes, visibleKeys,
          key, true));
    }
  });
  return output;
}


function formatProperty(ctx, value, recurseTimes, visibleKeys, key, array) {
  var name, str, desc;
  desc = Object.getOwnPropertyDescriptor(value, key) || { value: value[key] };
  if (desc.get) {
    if (desc.set) {
      str = ctx.stylize('[Getter/Setter]', 'special');
    } else {
      str = ctx.stylize('[Getter]', 'special');
    }
  } else {
    if (desc.set) {
      str = ctx.stylize('[Setter]', 'special');
    }
  }
  if (!hasOwnProperty(visibleKeys, key)) {
    name = '[' + key + ']';
  }
  if (!str) {
    if (ctx.seen.indexOf(desc.value) < 0) {
      if (isNull(recurseTimes)) {
        str = formatValue(ctx, desc.value, null);
      } else {
        str = formatValue(ctx, desc.value, recurseTimes - 1);
      }
      if (str.indexOf('\n') > -1) {
        if (array) {
          str = str.split('\n').map(function(line) {
            return '  ' + line;
          }).join('\n').substr(2);
        } else {
          str = '\n' + str.split('\n').map(function(line) {
            return '   ' + line;
          }).join('\n');
        }
      }
    } else {
      str = ctx.stylize('[Circular]', 'special');
    }
  }
  if (isUndefined(name)) {
    if (array && key.match(/^\d+$/)) {
      return str;
    }
    name = JSON.stringify('' + key);
    if (name.match(/^"([a-zA-Z_][a-zA-Z_0-9]*)"$/)) {
      name = name.substr(1, name.length - 2);
      name = ctx.stylize(name, 'name');
    } else {
      name = name.replace(/'/g, "\\'")
                 .replace(/\\"/g, '"')
                 .replace(/(^"|"$)/g, "'");
      name = ctx.stylize(name, 'string');
    }
  }

  return name + ': ' + str;
}


function reduceToSingleString(output, base, braces) {
  var numLinesEst = 0;
  var length = output.reduce(function(prev, cur) {
    numLinesEst++;
    if (cur.indexOf('\n') >= 0) numLinesEst++;
    return prev + cur.replace(/\u001b\[\d\d?m/g, '').length + 1;
  }, 0);

  if (length > 60) {
    return braces[0] +
           (base === '' ? '' : base + '\n ') +
           ' ' +
           output.join(',\n  ') +
           ' ' +
           braces[1];
  }

  return braces[0] + base + ' ' + output.join(', ') + ' ' + braces[1];
}


// NOTE: These type checking functions intentionally don't use `instanceof`
// because it is fragile and can be easily faked with `Object.create()`.
function isArray(ar) {
  return Array.isArray(ar);
}
exports.isArray = isArray;

function isBoolean(arg) {
  return typeof arg === 'boolean';
}
exports.isBoolean = isBoolean;

function isNull(arg) {
  return arg === null;
}
exports.isNull = isNull;

function isNullOrUndefined(arg) {
  return arg == null;
}
exports.isNullOrUndefined = isNullOrUndefined;

function isNumber(arg) {
  return typeof arg === 'number';
}
exports.isNumber = isNumber;

function isString(arg) {
  return typeof arg === 'string';
}
exports.isString = isString;

function isSymbol(arg) {
  return typeof arg === 'symbol';
}
exports.isSymbol = isSymbol;

function isUndefined(arg) {
  return arg === void 0;
}
exports.isUndefined = isUndefined;

function isRegExp(re) {
  return isObject(re) && objectToString(re) === '[object RegExp]';
}
exports.isRegExp = isRegExp;

function isObject(arg) {
  return typeof arg === 'object' && arg !== null;
}
exports.isObject = isObject;

function isDate(d) {
  return isObject(d) && objectToString(d) === '[object Date]';
}
exports.isDate = isDate;

function isError(e) {
  return isObject(e) &&
      (objectToString(e) === '[object Error]' || e instanceof Error);
}
exports.isError = isError;

function isFunction(arg) {
  return typeof arg === 'function';
}
exports.isFunction = isFunction;

function isPrimitive(arg) {
  return arg === null ||
         typeof arg === 'boolean' ||
         typeof arg === 'number' ||
         typeof arg === 'string' ||
         typeof arg === 'symbol' ||  // ES6 symbol
         typeof arg === 'undefined';
}
exports.isPrimitive = isPrimitive;

exports.isBuffer = require('./support/isBuffer');

function objectToString(o) {
  return Object.prototype.toString.call(o);
}


function pad(n) {
  return n < 10 ? '0' + n.toString(10) : n.toString(10);
}


var months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep',
              'Oct', 'Nov', 'Dec'];

// 26 Feb 16:19:34
function timestamp() {
  var d = new Date();
  var time = [pad(d.getHours()),
              pad(d.getMinutes()),
              pad(d.getSeconds())].join(':');
  return [d.getDate(), months[d.getMonth()], time].join(' ');
}


// log is just a thin wrapper to console.log that prepends a timestamp
exports.log = function() {
  console.log('%s - %s', timestamp(), exports.format.apply(exports, arguments));
};


/**
 * Inherit the prototype methods from one constructor into another.
 *
 * The Function.prototype.inherits from lang.js rewritten as a standalone
 * function (not on Function.prototype). NOTE: If this file is to be loaded
 * during bootstrapping this function needs to be rewritten using some native
 * functions as prototype setup using normal JavaScript does not work as
 * expected during bootstrapping (see mirror.js in r114903).
 *
 * @param {function} ctor Constructor function which needs to inherit the
 *     prototype.
 * @param {function} superCtor Constructor function to inherit prototype from.
 */
exports.inherits = require('inherits');

exports._extend = function(origin, add) {
  // Don't do anything if add isn't an object
  if (!add || !isObject(add)) return origin;

  var keys = Object.keys(add);
  var i = keys.length;
  while (i--) {
    origin[keys[i]] = add[keys[i]];
  }
  return origin;
};

function hasOwnProperty(obj, prop) {
  return Object.prototype.hasOwnProperty.call(obj, prop);
}

}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"./support/isBuffer":243,"_process":229,"inherits":242}]},{},[22])(22)
});