graphql/lib/type/rules/TypesInterfacesMustShowThemAsPossible.js

A Query Language and Runtime which can target any service.

/* @flow */
/**
 *  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.
 */

'use strict';

var _Object$defineProperty = require('babel-runtime/core-js/object/define-property')['default'];

var _Object$keys = require('babel-runtime/core-js/object/keys')['default'];

_Object$defineProperty(exports, '__esModule', {
  value: true
});

exports['default'] = TypesInterfacesMustShowThemAsPossible;

var _error = require('../../error');

var _definition = require('../definition');

function TypesInterfacesMustShowThemAsPossible(context) {
  var schema = context.getSchema();
  var typeMap = schema.getTypeMap();
  var errors = [];

  _Object$keys(typeMap).forEach(function (typeName) {
    var type = typeMap[typeName];
    if (!(type instanceof _definition.GraphQLObjectType)) {
      return;
    }
    var interfaces = type.getInterfaces();
    interfaces.forEach(function (interfaceType) {
      if (!interfaceType.isPossibleType(type)) {
        errors.push(new _error.GraphQLError('' + typeName + ' implements interface ' + interfaceType.name + ', but ' + ('' + interfaceType.name + ' does not list it as possible!')));
      }
    });
  });

  return errors.length > 0 ? errors : null;
}

module.exports = exports['default'];