| // Copyright 2012 The Closure Library Authors. All Rights Reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS-IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| |
| /** |
| * @fileoverview Defines a class for parsing JSON using the browser's built in |
| * JSON library. |
| */ |
| |
| goog.provide('goog.json.NativeJsonProcessor'); |
| |
| goog.require('goog.asserts'); |
| goog.require('goog.json.Processor'); |
| |
| |
| |
| /** |
| * A class that parses and stringifies JSON using the browser's built-in JSON |
| * library, if it is avaliable. |
| * |
| * Note that the native JSON api has subtle differences across browsers, so |
| * use this implementation with care. See json_test#assertSerialize |
| * for details on the differences from goog.json. |
| * |
| * This implementation is signficantly faster than goog.json, at least on |
| * Chrome. See json_perf.html for a perf test showing the difference. |
| * |
| * @param {?goog.json.Replacer=} opt_replacer An optional replacer to use during |
| * serialization. |
| * @param {?goog.json.Reviver=} opt_reviver An optional reviver to use during |
| * parsing. |
| * @constructor |
| * @implements {goog.json.Processor} |
| * @final |
| */ |
| goog.json.NativeJsonProcessor = function(opt_replacer, opt_reviver) { |
| goog.asserts.assert(goog.isDef(goog.global['JSON']), 'JSON not defined'); |
| |
| /** |
| * @type {goog.json.Replacer|null|undefined} |
| * @private |
| */ |
| this.replacer_ = opt_replacer; |
| |
| /** |
| * @type {goog.json.Reviver|null|undefined} |
| * @private |
| */ |
| this.reviver_ = opt_reviver; |
| }; |
| |
| |
| /** @override */ |
| goog.json.NativeJsonProcessor.prototype.stringify = function(object) { |
| return goog.global['JSON'].stringify(object, this.replacer_); |
| }; |
| |
| |
| /** @override */ |
| goog.json.NativeJsonProcessor.prototype.parse = function(s) { |
| return goog.global['JSON'].parse(s, this.reviver_); |
| }; |