swc/bundler/tests/.cache/deno/ececda68f08527d42336f71bf97a5c205f5afa9a.ts

// Loaded from https://deno.land/x/graphql_deno@v15.0.0/lib/utilities/findBreakingChanges.js


import objectValues from '../polyfills/objectValues.js';
import keyMap from '../jsutils/keyMap.js';
import inspect from '../jsutils/inspect.js';
import invariant from '../jsutils/invariant.js';
import { print } from '../language/printer.js';
import { visit } from '../language/visitor.js';
import { isSpecifiedScalarType } from '../type/scalars.js';
import { isScalarType, isObjectType, isInterfaceType, isUnionType, isEnumType, isInputObjectType, isNonNullType, isListType, isNamedType, isRequiredArgument, isRequiredInputField } from '../type/definition.js';
import { astFromValue } from './astFromValue.js';
export const BreakingChangeType = Object.freeze({
  TYPE_REMOVED: 'TYPE_REMOVED',
  TYPE_CHANGED_KIND: 'TYPE_CHANGED_KIND',
  TYPE_REMOVED_FROM_UNION: 'TYPE_REMOVED_FROM_UNION',
  VALUE_REMOVED_FROM_ENUM: 'VALUE_REMOVED_FROM_ENUM',
  REQUIRED_INPUT_FIELD_ADDED: 'REQUIRED_INPUT_FIELD_ADDED',
  IMPLEMENTED_INTERFACE_REMOVED: 'IMPLEMENTED_INTERFACE_REMOVED',
  FIELD_REMOVED: 'FIELD_REMOVED',
  FIELD_CHANGED_KIND: 'FIELD_CHANGED_KIND',
  REQUIRED_ARG_ADDED: 'REQUIRED_ARG_ADDED',
  ARG_REMOVED: 'ARG_REMOVED',
  ARG_CHANGED_KIND: 'ARG_CHANGED_KIND',
  DIRECTIVE_REMOVED: 'DIRECTIVE_REMOVED',
  DIRECTIVE_ARG_REMOVED: 'DIRECTIVE_ARG_REMOVED',
  REQUIRED_DIRECTIVE_ARG_ADDED: 'REQUIRED_DIRECTIVE_ARG_ADDED',
  DIRECTIVE_REPEATABLE_REMOVED: 'DIRECTIVE_REPEATABLE_REMOVED',
  DIRECTIVE_LOCATION_REMOVED: 'DIRECTIVE_LOCATION_REMOVED'
});
export const DangerousChangeType = Object.freeze({
  VALUE_ADDED_TO_ENUM: 'VALUE_ADDED_TO_ENUM',
  TYPE_ADDED_TO_UNION: 'TYPE_ADDED_TO_UNION',
  OPTIONAL_INPUT_FIELD_ADDED: 'OPTIONAL_INPUT_FIELD_ADDED',
  OPTIONAL_ARG_ADDED: 'OPTIONAL_ARG_ADDED',
  IMPLEMENTED_INTERFACE_ADDED: 'IMPLEMENTED_INTERFACE_ADDED',
  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.
 */
export function findBreakingChanges(oldSchema, newSchema) {
  const breakingChanges = findSchemaChanges(oldSchema, newSchema).filter(change => change.type in BreakingChangeType);
  return breakingChanges;
}
/**
 * Given two schemas, returns an Array containing descriptions of all the types
 * of potentially dangerous changes covered by the other functions down below.
 */

export function findDangerousChanges(oldSchema, newSchema) {
  const dangerousChanges = findSchemaChanges(oldSchema, newSchema).filter(change => change.type in DangerousChangeType);
  return dangerousChanges;
}

function findSchemaChanges(oldSchema, newSchema) {
  return [...findTypeChanges(oldSchema, newSchema), ...findDirectiveChanges(oldSchema, newSchema)];
}

function findDirectiveChanges(oldSchema, newSchema) {
  const schemaChanges = [];
  const directivesDiff = diff(oldSchema.getDirectives(), newSchema.getDirectives());

  for (const oldDirective of directivesDiff.removed) {
    schemaChanges.push({
      type: BreakingChangeType.DIRECTIVE_REMOVED,
      description: `${oldDirective.name} was removed.`
    });
  }

  for (const [oldDirective, newDirective] of directivesDiff.persisted) {
    const argsDiff = diff(oldDirective.args, newDirective.args);

    for (const newArg of argsDiff.added) {
      if (isRequiredArgument(newArg)) {
        schemaChanges.push({
          type: BreakingChangeType.REQUIRED_DIRECTIVE_ARG_ADDED,
          description: `A required arg ${newArg.name} on directive ${oldDirective.name} was added.`
        });
      }
    }

    for (const oldArg of argsDiff.removed) {
      schemaChanges.push({
        type: BreakingChangeType.DIRECTIVE_ARG_REMOVED,
        description: `${oldArg.name} was removed from ${oldDirective.name}.`
      });
    }

    if (oldDirective.isRepeatable && !newDirective.isRepeatable) {
      schemaChanges.push({
        type: BreakingChangeType.DIRECTIVE_REPEATABLE_REMOVED,
        description: `Repeatable flag was removed from ${oldDirective.name}.`
      });
    }

    for (const location of oldDirective.locations) {
      if (newDirective.locations.indexOf(location) === -1) {
        schemaChanges.push({
          type: BreakingChangeType.DIRECTIVE_LOCATION_REMOVED,
          description: `${location} was removed from ${oldDirective.name}.`
        });
      }
    }
  }

  return schemaChanges;
}

function findTypeChanges(oldSchema, newSchema) {
  const schemaChanges = [];
  const typesDiff = diff(objectValues(oldSchema.getTypeMap()), objectValues(newSchema.getTypeMap()));

  for (const oldType of typesDiff.removed) {
    schemaChanges.push({
      type: BreakingChangeType.TYPE_REMOVED,
      description: isSpecifiedScalarType(oldType) ? `Standard scalar ${oldType.name} was removed because it is not referenced anymore.` : `${oldType.name} was removed.`
    });
  }

  for (const [oldType, newType] of typesDiff.persisted) {
    if (isEnumType(oldType) && isEnumType(newType)) {
      schemaChanges.push(...findEnumTypeChanges(oldType, newType));
    } else if (isUnionType(oldType) && isUnionType(newType)) {
      schemaChanges.push(...findUnionTypeChanges(oldType, newType));
    } else if (isInputObjectType(oldType) && isInputObjectType(newType)) {
      schemaChanges.push(...findInputObjectTypeChanges(oldType, newType));
    } else if (isObjectType(oldType) && isObjectType(newType)) {
      schemaChanges.push(...findFieldChanges(oldType, newType), ...findImplementedInterfacesChanges(oldType, newType));
    } else if (isInterfaceType(oldType) && isInterfaceType(newType)) {
      schemaChanges.push(...findFieldChanges(oldType, newType), ...findImplementedInterfacesChanges(oldType, newType));
    } else if (oldType.constructor !== newType.constructor) {
      schemaChanges.push({
        type: BreakingChangeType.TYPE_CHANGED_KIND,
        description: `${oldType.name} changed from ` + `${typeKindName(oldType)} to ${typeKindName(newType)}.`
      });
    }
  }

  return schemaChanges;
}

function findInputObjectTypeChanges(oldType, newType) {
  const schemaChanges = [];
  const fieldsDiff = diff(objectValues(oldType.getFields()), objectValues(newType.getFields()));

  for (const newField of fieldsDiff.added) {
    if (isRequiredInputField(newField)) {
      schemaChanges.push({
        type: BreakingChangeType.REQUIRED_INPUT_FIELD_ADDED,
        description: `A required field ${newField.name} on input type ${oldType.name} was added.`
      });
    } else {
      schemaChanges.push({
        type: DangerousChangeType.OPTIONAL_INPUT_FIELD_ADDED,
        description: `An optional field ${newField.name} on input type ${oldType.name} was added.`
      });
    }
  }

  for (const oldField of fieldsDiff.removed) {
    schemaChanges.push({
      type: BreakingChangeType.FIELD_REMOVED,
      description: `${oldType.name}.${oldField.name} was removed.`
    });
  }

  for (const [oldField, newField] of fieldsDiff.persisted) {
    const isSafe = isChangeSafeForInputObjectFieldOrFieldArg(oldField.type, newField.type);

    if (!isSafe) {
      schemaChanges.push({
        type: BreakingChangeType.FIELD_CHANGED_KIND,
        description: `${oldType.name}.${oldField.name} changed type from ` + `${String(oldField.type)} to ${String(newField.type)}.`
      });
    }
  }

  return schemaChanges;
}

function findUnionTypeChanges(oldType, newType) {
  const schemaChanges = [];
  const possibleTypesDiff = diff(oldType.getTypes(), newType.getTypes());

  for (const newPossibleType of possibleTypesDiff.added) {
    schemaChanges.push({
      type: DangerousChangeType.TYPE_ADDED_TO_UNION,
      description: `${newPossibleType.name} was added to union type ${oldType.name}.`
    });
  }

  for (const oldPossibleType of possibleTypesDiff.removed) {
    schemaChanges.push({
      type: BreakingChangeType.TYPE_REMOVED_FROM_UNION,
      description: `${oldPossibleType.name} was removed from union type ${oldType.name}.`
    });
  }

  return schemaChanges;
}

function findEnumTypeChanges(oldType, newType) {
  const schemaChanges = [];
  const valuesDiff = diff(oldType.getValues(), newType.getValues());

  for (const newValue of valuesDiff.added) {
    schemaChanges.push({
      type: DangerousChangeType.VALUE_ADDED_TO_ENUM,
      description: `${newValue.name} was added to enum type ${oldType.name}.`
    });
  }

  for (const oldValue of valuesDiff.removed) {
    schemaChanges.push({
      type: BreakingChangeType.VALUE_REMOVED_FROM_ENUM,
      description: `${oldValue.name} was removed from enum type ${oldType.name}.`
    });
  }

  return schemaChanges;
}

function findImplementedInterfacesChanges(oldType, newType) {
  const schemaChanges = [];
  const interfacesDiff = diff(oldType.getInterfaces(), newType.getInterfaces());

  for (const newInterface of interfacesDiff.added) {
    schemaChanges.push({
      type: DangerousChangeType.IMPLEMENTED_INTERFACE_ADDED,
      description: `${newInterface.name} added to interfaces implemented by ${oldType.name}.`
    });
  }

  for (const oldInterface of interfacesDiff.removed) {
    schemaChanges.push({
      type: BreakingChangeType.IMPLEMENTED_INTERFACE_REMOVED,
      description: `${oldType.name} no longer implements interface ${oldInterface.name}.`
    });
  }

  return schemaChanges;
}

function findFieldChanges(oldType, newType) {
  const schemaChanges = [];
  const fieldsDiff = diff(objectValues(oldType.getFields()), objectValues(newType.getFields()));

  for (const oldField of fieldsDiff.removed) {
    schemaChanges.push({
      type: BreakingChangeType.FIELD_REMOVED,
      description: `${oldType.name}.${oldField.name} was removed.`
    });
  }

  for (const [oldField, newField] of fieldsDiff.persisted) {
    schemaChanges.push(...findArgChanges(oldType, oldField, newField));
    const isSafe = isChangeSafeForObjectOrInterfaceField(oldField.type, newField.type);

    if (!isSafe) {
      schemaChanges.push({
        type: BreakingChangeType.FIELD_CHANGED_KIND,
        description: `${oldType.name}.${oldField.name} changed type from ` + `${String(oldField.type)} to ${String(newField.type)}.`
      });
    }
  }

  return schemaChanges;
}

function findArgChanges(oldType, oldField, newField) {
  const schemaChanges = [];
  const argsDiff = diff(oldField.args, newField.args);

  for (const oldArg of argsDiff.removed) {
    schemaChanges.push({
      type: BreakingChangeType.ARG_REMOVED,
      description: `${oldType.name}.${oldField.name} arg ${oldArg.name} was removed.`
    });
  }

  for (const [oldArg, newArg] of argsDiff.persisted) {
    const isSafe = isChangeSafeForInputObjectFieldOrFieldArg(oldArg.type, newArg.type);

    if (!isSafe) {
      schemaChanges.push({
        type: BreakingChangeType.ARG_CHANGED_KIND,
        description: `${oldType.name}.${oldField.name} arg ${oldArg.name} has changed type from ` + `${String(oldArg.type)} to ${String(newArg.type)}.`
      });
    } else if (oldArg.defaultValue !== undefined) {
      if (newArg.defaultValue === undefined) {
        schemaChanges.push({
          type: DangerousChangeType.ARG_DEFAULT_VALUE_CHANGE,
          description: `${oldType.name}.${oldField.name} arg ${oldArg.name} defaultValue was removed.`
        });
      } else {
        // Since we looking only for client's observable changes we should
        // compare default values in the same representation as they are
        // represented inside introspection.
        const oldValueStr = stringifyValue(oldArg.defaultValue, oldArg.type);
        const newValueStr = stringifyValue(newArg.defaultValue, newArg.type);

        if (oldValueStr !== newValueStr) {
          schemaChanges.push({
            type: DangerousChangeType.ARG_DEFAULT_VALUE_CHANGE,
            description: `${oldType.name}.${oldField.name} arg ${oldArg.name} has changed defaultValue from ${oldValueStr} to ${newValueStr}.`
          });
        }
      }
    }
  }

  for (const newArg of argsDiff.added) {
    if (isRequiredArgument(newArg)) {
      schemaChanges.push({
        type: BreakingChangeType.REQUIRED_ARG_ADDED,
        description: `A required arg ${newArg.name} on ${oldType.name}.${oldField.name} was added.`
      });
    } else {
      schemaChanges.push({
        type: DangerousChangeType.OPTIONAL_ARG_ADDED,
        description: `An optional arg ${newArg.name} on ${oldType.name}.${oldField.name} was added.`
      });
    }
  }

  return schemaChanges;
}

function isChangeSafeForObjectOrInterfaceField(oldType, newType) {
  if (isListType(oldType)) {
    return (// if they're both lists, make sure the underlying types are compatible
      isListType(newType) && isChangeSafeForObjectOrInterfaceField(oldType.ofType, newType.ofType) || // moving from nullable to non-null of the same underlying type is safe
      isNonNullType(newType) && isChangeSafeForObjectOrInterfaceField(oldType, newType.ofType)
    );
  }

  if (isNonNullType(oldType)) {
    // if they're both non-null, make sure the underlying types are compatible
    return isNonNullType(newType) && isChangeSafeForObjectOrInterfaceField(oldType.ofType, newType.ofType);
  }

  return (// if they're both named types, see if their names are equivalent
    isNamedType(newType) && oldType.name === newType.name || // moving from nullable to non-null of the same underlying type is safe
    isNonNullType(newType) && isChangeSafeForObjectOrInterfaceField(oldType, newType.ofType)
  );
}

function isChangeSafeForInputObjectFieldOrFieldArg(oldType, newType) {
  if (isListType(oldType)) {
    // if they're both lists, make sure the underlying types are compatible
    return isListType(newType) && isChangeSafeForInputObjectFieldOrFieldArg(oldType.ofType, newType.ofType);
  }

  if (isNonNullType(oldType)) {
    return (// if they're both non-null, make sure the underlying types are
      // compatible
      isNonNullType(newType) && isChangeSafeForInputObjectFieldOrFieldArg(oldType.ofType, newType.ofType) || // moving from non-null to nullable of the same underlying type is safe
      !isNonNullType(newType) && isChangeSafeForInputObjectFieldOrFieldArg(oldType.ofType, newType)
    );
  } // if they're both named types, see if their names are equivalent


  return isNamedType(newType) && oldType.name === newType.name;
}

function typeKindName(type) {
  if (isScalarType(type)) {
    return 'a Scalar type';
  }

  if (isObjectType(type)) {
    return 'an Object type';
  }

  if (isInterfaceType(type)) {
    return 'an Interface type';
  }

  if (isUnionType(type)) {
    return 'a Union type';
  }

  if (isEnumType(type)) {
    return 'an Enum type';
  }

  if (isInputObjectType(type)) {
    return 'an Input type';
  } // Not reachable. All possible named types have been considered.


  invariant(false, 'Unexpected type: ' + inspect(type));
}

function stringifyValue(value, type) {
  const ast = astFromValue(value, type);
  invariant(ast != null);
  const sortedAST = visit(ast, {
    ObjectValue(objectNode) {
      const fields = [...objectNode.fields].sort((fieldA, fieldB) => fieldA.name.value.localeCompare(fieldB.name.value));
      return { ...objectNode,
        fields
      };
    }

  });
  return print(sortedAST);
}

function diff(oldArray, newArray) {
  const added = [];
  const removed = [];
  const persisted = [];
  const oldMap = keyMap(oldArray, ({
    name
  }) => name);
  const newMap = keyMap(newArray, ({
    name
  }) => name);

  for (const oldItem of oldArray) {
    const newItem = newMap[oldItem.name];

    if (newItem === undefined) {
      removed.push(oldItem);
    } else {
      persisted.push([oldItem, newItem]);
    }
  }

  for (const newItem of newArray) {
    if (oldMap[newItem.name] === undefined) {
      added.push(newItem);
    }
  }

  return {
    added,
    persisted,
    removed
  };
}