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1 // Copyright 2013 the V8 project authors. All rights reserved. | |
2 // Redistribution and use in source and binary forms, with or without | |
3 // modification, are permitted provided that the following conditions are | |
4 // met: | |
5 // | |
6 // * Redistributions of source code must retain the above copyright | |
7 // notice, this list of conditions and the following disclaimer. | |
8 // * Redistributions in binary form must reproduce the above | |
9 // copyright notice, this list of conditions and the following | |
10 // disclaimer in the documentation and/or other materials provided | |
11 // with the distribution. | |
12 // * Neither the name of Google Inc. nor the names of its | |
13 // contributors may be used to endorse or promote products derived | |
14 // from this software without specific prior written permission. | |
15 // | |
16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
27 | |
28 // Flags: --harmony-proxies | |
29 | |
30 | |
31 // Helper. | |
32 | |
33 function TestWithProxies(test, x, y, z) { | |
34 test(function(h) { return new Proxy({}, h) }, x, y, z) | |
35 test(function(h) { | |
36 return Proxy.createFunction(h, function() {}) | |
37 }, x, y, z) | |
38 } | |
39 | |
40 | |
41 // No symbols should leak to proxy traps. | |
42 | |
43 function TestNoSymbolsToTrap(handler) { | |
44 TestWithProxies(TestNoSymbolsToTrap2, handler) | |
45 } | |
46 | |
47 function TestNoSymbolsToTrap2(create, handler) { | |
48 var p = create(handler) | |
49 var o = Object.create(p) | |
50 var symbol = Symbol("secret") | |
51 | |
52 assertFalse(symbol in p) | |
53 assertFalse(symbol in o) | |
54 assertEquals(undefined, p[symbol]) | |
55 assertEquals(undefined, o[symbol]) | |
56 assertEquals(47, p[symbol] = 47) | |
57 assertEquals(47, o[symbol] = 47) | |
58 assertFalse(delete p[symbol]) | |
59 assertTrue(delete o[symbol]) | |
60 assertTrue(delete o[symbol]) | |
61 assertFalse({}.hasOwnProperty.call(p, symbol)) | |
62 assertFalse({}.hasOwnProperty.call(o, symbol)) | |
63 assertEquals(undefined, Object.getOwnPropertyDescriptor(p, symbol)) | |
64 assertEquals(undefined, Object.getOwnPropertyDescriptor(o, symbol)) | |
65 } | |
66 | |
67 | |
68 TestNoSymbolsToTrap({ | |
69 has: assertUnreachable, | |
70 hasOwn: assertUnreachable, | |
71 get: assertUnreachable, | |
72 set: assertUnreachable, | |
73 delete: assertUnreachable, | |
74 getPropertyDescriptor: assertUnreachable, | |
75 getOwnPropertyDescriptor: assertUnreachable, | |
76 defineProperty: assertUnreachable | |
77 }) | |
78 | |
79 | |
80 // All symbols returned from proxy traps should be filtered. | |
81 | |
82 function TestNoSymbolsFromTrap(handler) { | |
83 TestWithProxies(TestNoSymbolsFromTrap2, handler) | |
84 } | |
85 | |
86 function TestNoSymbolsFromTrap2(create, handler) { | |
87 var p = create(handler) | |
88 var o = Object.create(p) | |
89 | |
90 assertEquals(0, Object.keys(p).length) | |
91 assertEquals(0, Object.keys(o).length) | |
92 assertEquals(0, Object.getOwnPropertyNames(p).length) | |
93 assertEquals(0, Object.getOwnPropertyNames(o).length) | |
94 for (var n in p) assertUnreachable() | |
95 for (var n in o) assertUnreachable() | |
96 } | |
97 | |
98 | |
99 function MakeSymbolArray() { | |
100 return [Symbol(), Symbol("a")] | |
101 } | |
102 | |
103 TestNoSymbolsFromTrap({ | |
104 enumerate: MakeSymbolArray, | |
105 keys: MakeSymbolArray, | |
106 getPropertyNames: MakeSymbolArray, | |
107 getOwnPropertyNames: MakeSymbolArray | |
108 }) | |
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