OLD | NEW |
| (Empty) |
1 // Copyright 2015 the V8 project authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 // Flags: --harmony-proxies | |
6 | |
7 var handler = {}; | |
8 var target = { a: 1 }; | |
9 var proxy = new Proxy(target, handler); | |
10 | |
11 assertTrue(target.propertyIsEnumerable('a')); | |
12 assertTrue(proxy.propertyIsEnumerable('a')); | |
13 assertFalse(target.propertyIsEnumerable('b')); | |
14 assertFalse(proxy.propertyIsEnumerable('b')); | |
15 | |
16 handler.getOwnPropertyDescriptor = function(target, prop) { | |
17 return { configurable: true, enumerable: true, value: 10 }; | |
18 } | |
19 assertTrue(target.propertyIsEnumerable('a')); | |
20 assertTrue(proxy.propertyIsEnumerable('a')); | |
21 assertFalse(target.propertyIsEnumerable('b')); | |
22 assertTrue(proxy.propertyIsEnumerable('b')); | |
23 | |
24 handler.getOwnPropertyDescriptor = function(target, prop) { | |
25 return { configurable: true, enumerable: false, value: 10 }; | |
26 } | |
27 assertTrue(target.propertyIsEnumerable('a')); | |
28 assertFalse(proxy.propertyIsEnumerable('a')); | |
29 assertFalse(target.propertyIsEnumerable('b')); | |
30 assertFalse(proxy.propertyIsEnumerable('b')); | |
OLD | NEW |