| // Copyright (C) 2015 the V8 project authors. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| /*--- |
| es6id: 9.5.6 |
| description: > |
| If a property has a corresponding target object property then applying the |
| Property Descriptor of the property to the target object using |
| [[DefineOwnProperty]] will not throw an exception. |
| features: [Proxy, Reflect] |
| includes: [propertyHelper.js] |
| ---*/ |
| |
| var target = {}; |
| var p = new Proxy(target, { |
| defineProperty: function(t, prop, desc) { |
| return Object.defineProperty(t, prop, desc); |
| } |
| }); |
| |
| var result = Reflect.defineProperty(p, "attr", { |
| configurable: true, |
| enumerable: true, |
| writable: true, |
| value: 1 |
| }); |
| |
| assert.sameValue(result, true, "result === true"); |
| |
| verifyEqualTo(target, "attr", 1); |
| verifyWritable(target, "attr"); |
| verifyEnumerable(target, "attr"); |
| verifyConfigurable(target, "attr"); |
| |
| result = Reflect.defineProperty(p, "attr", { |
| configurable: false, |
| enumerable: false, |
| writable: false, |
| value: 2 |
| }); |
| |
| assert.sameValue(result, true, "result === true"); |
| |
| verifyEqualTo(target, "attr", 2); |
| verifyNotWritable(target, "attr"); |
| verifyNotEnumerable(target, "attr"); |
| verifyNotConfigurable(target, "attr"); |