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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.hasOwnProperty('a')); | |
12 assertTrue(proxy.hasOwnProperty('a')); | |
13 assertFalse(target.hasOwnProperty('b')); | |
14 assertFalse(proxy.hasOwnProperty('b')); | |
15 | |
16 | |
17 handler.has = function() { assertUnreachable() } | |
18 handler.getOwnPropertyDescriptor = function () {} | |
19 | |
20 assertTrue(target.hasOwnProperty('a')); | |
21 assertFalse(proxy.hasOwnProperty('a')); | |
22 assertFalse(target.hasOwnProperty('b')); | |
23 assertFalse(proxy.hasOwnProperty('b')); | |
24 | |
25 | |
26 handler.getOwnPropertyDescriptor = function() { return {configurable: true} } | |
27 | |
28 assertTrue(target.hasOwnProperty('a')); | |
29 assertTrue(proxy.hasOwnProperty('a')); | |
30 assertFalse(target.hasOwnProperty('b')); | |
31 assertTrue(proxy.hasOwnProperty('b')); | |
32 | |
33 | |
34 handler.getOwnPropertyDescriptor = function() { throw Error(); } | |
35 | |
36 assertTrue(target.hasOwnProperty('a')); | |
37 assertThrows(function(){ proxy.hasOwnProperty('a') }, Error); | |
38 assertFalse(target.hasOwnProperty('b')); | |
39 assertThrows(function(){ proxy.hasOwnProperty('b') }, Error); | |
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