function _assertThisInitialized(self) {
    if (self === void 0) {
        throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
    }
    return self;
}
function _classCallCheck(instance, Constructor) {
    if (!(instance instanceof Constructor)) {
        throw new TypeError("Cannot call a class as a 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);
    }
}
function _createClass(Constructor, protoProps, staticProps) {
    if (protoProps) _defineProperties(Constructor.prototype, protoProps);
    if (staticProps) _defineProperties(Constructor, staticProps);
    return Constructor;
}
function _get(target, property, receiver) {
    if (typeof Reflect !== "undefined" && Reflect.get) {
        _get = Reflect.get;
    } else {
        _get = function _get(target, property, receiver) {
            var base = _superPropBase(target, property);
            if (!base) return;
            var desc = Object.getOwnPropertyDescriptor(base, property);
            if (desc.get) {
                return desc.get.call(receiver);
            }
            return desc.value;
        };
    }
    return _get(target, property, receiver || target);
}
function _getPrototypeOf(o) {
    _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) {
        return o.__proto__ || Object.getPrototypeOf(o);
    };
    return _getPrototypeOf(o);
}
function _inherits(subClass, superClass) {
    if (typeof superClass !== "function" && superClass !== null) {
        throw new TypeError("Super expression must either be null or a function");
    }
    subClass.prototype = Object.create(superClass && superClass.prototype, {
        constructor: {
            value: subClass,
            writable: true,
            configurable: true
        }
    });
    if (superClass) _setPrototypeOf(subClass, superClass);
}
function _possibleConstructorReturn(self, call) {
    if (call && (_typeof(call) === "object" || typeof call === "function")) {
        return call;
    }
    return _assertThisInitialized(self);
}
function _setPrototypeOf(o, p) {
    _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) {
        o.__proto__ = p;
        return o;
    };
    return _setPrototypeOf(o, p);
}
function _superPropBase(object, property) {
    while(!Object.prototype.hasOwnProperty.call(object, property)){
        object = _getPrototypeOf(object);
        if (object === null) break;
    }
    return object;
}
var _typeof = function(obj) {
    return obj && typeof Symbol !== "undefined" && obj.constructor === Symbol ? "symbol" : typeof obj;
};
var B = // @target: es6
/*#__PURE__*/ function() {
    "use strict";
    function B() {
        _classCallCheck(this, B);
    }
    _createClass(B, [
        {
            key: "baz",
            value: function baz(a, param) {
                var y = param === void 0 ? 10 : param;
            }
        }
    ]);
    return B;
}();
var C = /*#__PURE__*/ function(B) {
    "use strict";
    _inherits(C, B);
    function C() {
        _classCallCheck(this, C);
        return _possibleConstructorReturn(this, _getPrototypeOf(C).apply(this, arguments));
    }
    _createClass(C, [
        {
            key: "foo",
            value: function foo() {
            }
        },
        {
            key: "baz",
            value: function baz(a, y) {
                _get(_getPrototypeOf(C.prototype), "baz", this).call(this, a, y);
            }
        }
    ]);
    return C;
}(B);
var D = /*#__PURE__*/ function(C) {
    "use strict";
    _inherits(D, C);
    function D() {
        _classCallCheck(this, D);
        return _possibleConstructorReturn(this, _getPrototypeOf(D).call(this));
    }
    _createClass(D, [
        {
            key: "foo",
            value: function foo() {
                _get(_getPrototypeOf(D.prototype), "foo", this).call(this);
            }
        },
        {
            key: "baz",
            value: function baz() {
                _get(_getPrototypeOf(D.prototype), "baz", this).call(this, "hello", 10);
            }
        }
    ]);
    return D;
}(C);