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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 = { | 7 var target = { |
8 "target_one": 1 | 8 "target_one": 1 |
9 }; | 9 }; |
10 target.__proto__ = { | 10 target.__proto__ = { |
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30 function TestForIn(receiver, expected) { | 30 function TestForIn(receiver, expected) { |
31 var result = []; | 31 var result = []; |
32 for (var k in receiver) { | 32 for (var k in receiver) { |
33 result.push(k); | 33 result.push(k); |
34 } | 34 } |
35 assertEquals(expected, result); | 35 assertEquals(expected, result); |
36 } | 36 } |
37 | 37 |
38 TestForIn(proxy, ["foo", "bar"]); | 38 TestForIn(proxy, ["foo", "bar"]); |
39 | 39 |
| 40 // Test revoked proxy. |
| 41 var pair = Proxy.revocable(target, handler); |
| 42 TestForIn(pair.proxy, ["foo", "bar"]); |
| 43 pair.revoke(); |
| 44 assertThrows(()=>{ TestForIn(pair.proxy, ["foo", "bar"]) }, TypeError); |
| 45 |
40 // Properly call traps on proxies on the prototype chain. | 46 // Properly call traps on proxies on the prototype chain. |
41 var receiver = { | 47 var receiver = { |
42 "receiver_one": 1 | 48 "receiver_one": 1 |
43 }; | 49 }; |
44 receiver.__proto__ = proxy; | 50 receiver.__proto__ = proxy; |
45 TestForIn(receiver, ["receiver_one", "foo", "bar"]); | 51 TestForIn(receiver, ["receiver_one", "foo", "bar"]); |
46 | 52 |
47 // Fall through to default behavior when trap is undefined. | 53 // Fall through to default behavior when trap is undefined. |
48 handler.enumerate = undefined; | 54 handler.enumerate = undefined; |
49 TestForIn(proxy, ["target_one", "target_two"]); | 55 TestForIn(proxy, ["target_one", "target_two"]); |
50 delete handler.enumerate; | 56 delete handler.enumerate; |
51 TestForIn(proxy, ["target_one", "target_two"]); | 57 TestForIn(proxy, ["target_one", "target_two"]); |
52 | 58 |
53 // Non-string keys must be filtered. | 59 // Non-string keys must be filtered. |
54 function TestNonStringKey(key) { | 60 function TestNonStringKey(key) { |
55 handler.enumerate = function(target) { | 61 handler.enumerate = function(target) { |
56 function* keys() { yield key; } | 62 function* keys() { yield key; } |
57 return keys(); | 63 return keys(); |
58 } | 64 } |
59 assertThrows("for (var k in proxy) {}", TypeError); | 65 assertThrows("for (var k in proxy) {}", TypeError); |
60 } | 66 } |
61 | 67 |
62 TestNonStringKey(1); | 68 TestNonStringKey(1); |
63 TestNonStringKey(3.14); | 69 TestNonStringKey(3.14); |
64 TestNonStringKey(Symbol("foo")); | 70 TestNonStringKey(Symbol("foo")); |
65 TestNonStringKey({bad: "value"}); | 71 TestNonStringKey({bad: "value"}); |
66 TestNonStringKey(null); | 72 TestNonStringKey(null); |
67 TestNonStringKey(undefined); | 73 TestNonStringKey(undefined); |
68 TestNonStringKey(true); | 74 TestNonStringKey(true); |
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