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1 // Copyright 2015 the V8 project authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 // Flags: --harmony-proxies | 5 // Flags: --harmony-proxies |
6 | 6 |
7 var target = { target: 1 }; | 7 var target = { target: 1 }; |
8 target.__proto__ = {}; | 8 target.__proto__ = {}; |
9 var handler = { handler: 1 }; | 9 var handler = { handler: 1 }; |
10 var proxy = new Proxy(target, handler); | 10 var proxy = new Proxy(target, handler); |
(...skipping 18 matching lines...) Expand all Loading... |
29 var proxy2 = new Proxy(proxy, {'handler':1}); | 29 var proxy2 = new Proxy(proxy, {'handler':1}); |
30 assertSame(Object.getPrototypeOf(proxy2), target_prototype); | 30 assertSame(Object.getPrototypeOf(proxy2), target_prototype); |
31 | 31 |
32 // Test with Proxy handler: | 32 // Test with Proxy handler: |
33 var proxy3_prototype = {'proto3':true}; | 33 var proxy3_prototype = {'proto3':true}; |
34 var handler_proxy = new Proxy({ | 34 var handler_proxy = new Proxy({ |
35 getPrototypeOf: function() { return proxy3_prototype } | 35 getPrototypeOf: function() { return proxy3_prototype } |
36 }, {}); | 36 }, {}); |
37 var proxy3 = new Proxy(target, handler_proxy); | 37 var proxy3 = new Proxy(target, handler_proxy); |
38 assertSame(Object.getPrototypeOf(proxy3), proxy3_prototype); | 38 assertSame(Object.getPrototypeOf(proxy3), proxy3_prototype); |
39 | |
40 | |
41 // Some tests with Object.prototype.isPrototypeOf | |
42 | |
43 (function () { | |
44 var object = {}; | |
45 var handler = {}; | |
46 var proto = new Proxy({}, handler); | |
47 object.__proto__ = proto; | |
48 | |
49 assertTrue(proto.isPrototypeOf(object)); | |
50 assertTrue(Object.prototype.isPrototypeOf.call(proto, object)); | |
51 | |
52 handler.getPrototypeOf = function () { return Object.prototype }; | |
53 assertTrue(proto.isPrototypeOf(object)); | |
54 assertTrue(Object.prototype.isPrototypeOf.call(proto, object)); | |
55 assertTrue(Object.prototype.isPrototypeOf(object)); | |
56 assertFalse(Object.prototype.isPrototypeOf.call(Array.prototype, object)); | |
57 assertFalse(Array.prototype.isPrototypeOf(object)); | |
58 | |
59 handler.getPrototypeOf = function () { return object }; | |
60 assertTrue(Object.prototype.isPrototypeOf.call(proto, object)); | |
61 assertTrue(proto.isPrototypeOf(object)); | |
62 assertTrue(Object.prototype.isPrototypeOf.call(object, object)); | |
63 assertTrue(object.isPrototypeOf(object)); | |
64 | |
65 handler.getPrototypeOf = function () { throw "foo" }; | |
66 assertTrue(proto.isPrototypeOf(object)); | |
67 assertTrue(Object.prototype.isPrototypeOf.call(proto, object)); | |
68 assertThrows(()=> Object.prototype.isPrototypeOf(object)); | |
69 assertThrows(()=> Object.prototype.isPrototypeOf.call(Array.prototype, object)
); | |
70 assertThrows(()=> Array.prototype.isPrototypeOf(object)); | |
71 })(); | |
72 | |
73 (function () { | |
74 var handler = {}; | |
75 var object = new Proxy({}, handler); | |
76 var proto = {}; | |
77 | |
78 assertFalse(Object.prototype.isPrototypeOf.call(object, object)); | |
79 assertFalse(Object.prototype.isPrototypeOf.call(proto, object)); | |
80 assertTrue(Object.prototype.isPrototypeOf.call(Object.prototype, object)); | |
81 | |
82 handler.getPrototypeOf = function () { return proto }; | |
83 assertTrue(Object.prototype.isPrototypeOf.call(proto, object)); | |
84 assertFalse(Object.prototype.isPrototypeOf.call({}, object)); | |
85 assertTrue(Object.prototype.isPrototypeOf.call(Object.prototype, object)); | |
86 | |
87 handler.getPrototypeOf = function () { return object }; | |
88 assertTrue(Object.prototype.isPrototypeOf.call(object, object)); | |
89 | |
90 handler.getPrototypeOf = function () { throw "foo" }; | |
91 assertThrows(()=> Object.prototype.isPrototypeOf.call(object, object)); | |
92 assertThrows(()=> Object.prototype.isPrototypeOf(object)); | |
93 })(); | |
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