graphql/lib/utils/typeFromAST.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 _interopRequireDefault = require('babel-runtime/helpers/interop-require-default')['default'];

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

exports['default'] = typeFromAST;

var _invariant = require('./invariant');

var _invariant2 = _interopRequireDefault(_invariant);

var _languageKinds = require('../language/kinds');

var _typeDefinition = require('../type/definition');

function typeFromAST(schema, inputTypeAST) {
  var innerType;
  if (inputTypeAST.kind === _languageKinds.LIST_TYPE) {
    innerType = typeFromAST(schema, inputTypeAST.type);
    return innerType && new _typeDefinition.GraphQLList(innerType);
  }
  if (inputTypeAST.kind === _languageKinds.NON_NULL_TYPE) {
    innerType = typeFromAST(schema, inputTypeAST.type);
    return innerType && new _typeDefinition.GraphQLNonNull(innerType);
  }
  (0, _invariant2['default'])(inputTypeAST.kind === _languageKinds.NAME, 'Must be a type name.');
  return schema.getType(inputTypeAST.value);
}

module.exports = exports['default'];