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1 // Copyright 2014 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: --allow-natives-syntax | |
6 | |
7 var s = %CreatePrivateOwnSymbol("s"); | |
8 var s1 = %CreatePrivateOwnSymbol("s1"); | |
9 | |
10 function TestSimple() { | |
11 var p = {} | |
12 p[s] = "moo"; | |
13 | |
14 var o = Object.create(p); | |
15 | |
16 assertEquals(undefined, o[s]); | |
17 assertEquals("moo", p[s]); | |
18 | |
19 o[s] = "bow-wow"; | |
20 assertEquals("bow-wow", o[s]); | |
21 assertEquals("moo", p[s]); | |
22 } | |
23 | |
24 TestSimple(); | |
25 | |
26 | |
27 function TestICs() { | |
28 var p = {} | |
29 p[s] = "moo"; | |
30 | |
31 | |
32 var o = Object.create(p); | |
33 o[s1] = "bow-wow"; | |
34 function checkNonOwn(o) { | |
35 assertEquals(undefined, o[s]); | |
36 assertEquals("bow-wow", o[s1]); | |
37 } | |
38 | |
39 checkNonOwn(o); | |
40 | |
41 // Test monomorphic/optimized. | |
42 for (var i = 0; i < 1000; i++) { | |
43 checkNonOwn(o); | |
44 } | |
45 | |
46 // Test non-monomorphic. | |
47 for (var i = 0; i < 1000; i++) { | |
48 var oNew = Object.create(p); | |
49 oNew["s" + i] = i; | |
50 oNew[s1] = "bow-wow"; | |
51 checkNonOwn(oNew); | |
52 } | |
53 } | |
54 | |
55 TestICs(); | |
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