graphql/utilities/valueFromASTUntyped.js

'use strict';

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

var _keyValMap = require('../jsutils/keyValMap');

var _keyValMap2 = _interopRequireDefault(_keyValMap);

var _isInvalid = require('../jsutils/isInvalid');

var _isInvalid2 = _interopRequireDefault(_isInvalid);

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 JavaScript value given a GraphQL Value AST.
 *
 * Unlike `valueFromAST()`, no type is provided. The resulting JavaScript value
 * will reflect the provided GraphQL value AST.
 *
 * | GraphQL Value        | JavaScript Value |
 * | -------------------- | ---------------- |
 * | Input Object         | Object           |
 * | List                 | Array            |
 * | Boolean              | Boolean          |
 * | String / Enum        | String           |
 * | Int / Float          | Number           |
 * | Null                 | null             |
 *
 */
function valueFromASTUntyped(valueNode, variables) {
  switch (valueNode.kind) {
    case Kind.NULL:
      return null;
    case Kind.INT:
      return parseInt(valueNode.value, 10);
    case Kind.FLOAT:
      return parseFloat(valueNode.value);
    case Kind.STRING:
    case Kind.ENUM:
    case Kind.BOOLEAN:
      return valueNode.value;
    case Kind.LIST:
      return valueNode.values.map(function (node) {
        return valueFromASTUntyped(node, variables);
      });
    case Kind.OBJECT:
      return (0, _keyValMap2.default)(valueNode.fields, function (field) {
        return field.name.value;
      }, function (field) {
        return valueFromASTUntyped(field.value, variables);
      });
    case Kind.VARIABLE:
      var variableName = valueNode.name.value;
      return variables && !(0, _isInvalid2.default)(variables[variableName]) ? variables[variableName] : undefined;
  }
  /* istanbul ignore next */
  throw new Error('Unexpected value kind: ' + valueNode.kind);
}
/**
 *  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.
 */