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
7var handler = {};
8var target = {a:1};
9var proxy = new Proxy(target, handler);
10
11assertTrue(target.hasOwnProperty('a'));
12assertTrue(proxy.hasOwnProperty('a'));
13assertFalse(target.hasOwnProperty('b'));
14assertFalse(proxy.hasOwnProperty('b'));
15
16
17handler.has = function() { assertUnreachable() }
18handler.getOwnPropertyDescriptor = function () {}
19
20assertTrue(target.hasOwnProperty('a'));
21assertFalse(proxy.hasOwnProperty('a'));
22assertFalse(target.hasOwnProperty('b'));
23assertFalse(proxy.hasOwnProperty('b'));
24
25
26handler.getOwnPropertyDescriptor = function() { return {configurable: true} }
27
28assertTrue(target.hasOwnProperty('a'));
29assertTrue(proxy.hasOwnProperty('a'));
30assertFalse(target.hasOwnProperty('b'));
31assertTrue(proxy.hasOwnProperty('b'));
32
33
34handler.getOwnPropertyDescriptor = function() { throw Error(); }
35
36assertTrue(target.hasOwnProperty('a'));
37assertThrows(function(){ proxy.hasOwnProperty('a') }, Error);
38assertFalse(target.hasOwnProperty('b'));
39assertThrows(function(){ proxy.hasOwnProperty('b') }, Error);
40