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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 --harmony-reflect --allow-natives-syntax | |
6 | |
7 // Do not read out the prototype from a cross-realm object. | |
8 var realm = Realm.create(); | |
9 | |
10 __proto__ = {}; | |
11 assertEquals(null, | |
12 Realm.eval(realm, "3; Reflect.getPrototypeOf(Realm.global(0))")); | |
13 assertFalse(Realm.eval(realm, "3; Realm.global(0) instanceof Object")); | |
14 | |
15 __proto__ = new Proxy({}, { getPrototypeOf() { assertUnreachable() } }); | |
16 assertEquals(null, | |
17 Realm.eval(realm, "1; Reflect.getPrototypeOf(Realm.global(0))")); | |
18 assertFalse(Realm.eval(realm, "1; Realm.global(0) instanceof Object")); | |
19 | |
20 // Test that the instannceof check works in optimized code. | |
21 var test = Realm.eval(realm, | |
22 "()=>{1.1; return Realm.global(0) instanceof Object; }"); | |
23 assertFalse(test()); | |
24 test(); | |
25 test(); | |
26 %OptimizeFunctionOnNextCall(test); | |
27 assertFalse(test()); | |
28 | |
29 __proto__ = {}; | |
30 __proto__ = new Proxy({}, { get(t, p, r) { assertUnreachable() } }); | |
31 assertEquals(null, | |
32 Realm.eval(realm, "2; Reflect.getPrototypeOf(Realm.global(0))")); | |
33 assertFalse(Realm.eval(realm, "2; Realm.global(0) instanceof Object")); | |
34 | |
35 | |
36 __proto__ = {}; | |
37 __proto__.__proto__ = new Proxy({}, { | |
38 getPrototypeOf() { assertUnreachable() } | |
39 }); | |
40 assertEquals(null, | |
41 Realm.eval(realm, "4; Reflect.getPrototypeOf(Realm.global(0))")); | |
42 assertFalse(Realm.eval(realm, "4; Realm.global(0) instanceof Object")); | |
43 | |
44 // 2-level proxy indirection | |
45 __proto__ = {}; | |
46 __proto__ = new Proxy({}, | |
47 new Proxy({}, { | |
48 get() { assertUnreachable() } | |
49 }) | |
50 ); | |
51 assertEquals(null, | |
52 Realm.eval(realm, "5; Reflect.getPrototypeOf(Realm.global(0))")); | |
53 assertFalse(Realm.eval(realm, "5; Realm.global(0) instanceof Object")); | |
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