1// Copyright JS Foundation and other contributors, http://js.foundation 2// 3// Licensed under the Apache License, Version 2.0 (the "License"); 4// you may not use this file except in compliance with the License. 5// You may obtain a copy of the License at 6// 7// http://www.apache.org/licenses/LICENSE-2.0 8// 9// Unless required by applicable law or agreed to in writing, software 10// distributed under the License is distributed on an "AS IS" BASIS 11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12// See the License for the specific language governing permissions and 13// limitations under the License. 14 15function Box(data) { 16 this._data = data; 17} 18 19var box = new Box('='); 20 21Object.defineProperty(Box.prototype, 'data', { 22 get: function () { 23 assert(this === box); 24 return this._data; 25 }, 26 set: function (data) { 27 assert(this === box); 28 this._data = data; 29 } 30}); 31 32assert(box.data === '='); 33box.data = '+'; 34assert(box.data === '+'); 35 36function test_access(value, proto) { 37 "use strict" 38 39 Object.defineProperty(proto, 'test', { 40 get: function () { assert (this === value) }, 41 set: function () { assert (this === value) } 42 }); 43 44 value.test; 45 value.test = undefined; 46} 47 48test_access ("str", String.prototype); 49test_access (1, Number.prototype); 50test_access (true, Boolean.prototype); 51