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Issue 10386166: Revert r11496. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Created 8 years, 7 months ago
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1 // Copyright 2012 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: --allow-natives-syntax
29
30 // Handy abbreviations.
31 var dp = Object.defineProperty;
32 var gop = Object.getOwnPropertyDescriptor;
33
34 function getter() { return 111; }
35 function setter(x) { print(222); }
36 function anotherGetter() { return 333; }
37 function anotherSetter(x) { print(444); }
38 var obj1, obj2;
39
40 // Two objects with the same getter.
41 obj1 = {};
42 dp(obj1, "alpha", { get: getter });
43 obj2 = {};
44 dp(obj2, "alpha", { get: getter });
45 assertTrue(%HaveSameMap(obj1, obj2));
46
47 // Two objects with the same getter, oldskool.
48 obj1 = {};
49 obj1.__defineGetter__("bravo", getter);
50 assertEquals(getter, obj1.__lookupGetter__("bravo"));
51 obj2 = {};
52 obj2.__defineGetter__("bravo", getter);
53 assertEquals(getter, obj2.__lookupGetter__("bravo"));
54 assertTrue(%HaveSameMap(obj1, obj2));
55
56 // Two objects with the same setter.
57 obj1 = {};
58 dp(obj1, "charlie", { set: setter });
59 obj2 = {};
60 dp(obj2, "charlie", { set: setter });
61 assertTrue(%HaveSameMap(obj1, obj2));
62
63 // Two objects with the same setter, oldskool.
64 obj1 = {};
65 obj1.__defineSetter__("delta", setter);
66 assertEquals(setter, obj1.__lookupSetter__("delta"));
67 obj2 = {};
68 obj2.__defineSetter__("delta", setter);
69 assertEquals(setter, obj2.__lookupSetter__("delta"));
70 assertTrue(%HaveSameMap(obj1, obj2));
71
72 // Two objects with the same getter and setter.
73 obj1 = {};
74 dp(obj1, "foxtrot", { get: getter, set: setter });
75 obj2 = {};
76 dp(obj2, "foxtrot", { get: getter, set: setter });
77 assertTrue(%HaveSameMap(obj1, obj2));
78
79 // Two objects with the same getter and setter, set separately.
80 obj1 = {};
81 dp(obj1, "golf", { get: getter, configurable: true });
82 dp(obj1, "golf", { set: setter, configurable: true });
83 obj2 = {};
84 dp(obj2, "golf", { get: getter, configurable: true });
85 dp(obj2, "golf", { set: setter, configurable: true });
86 assertTrue(%HaveSameMap(obj1, obj2));
87
88 // Two objects with the same getter and setter, set separately, oldskool.
89 obj1 = {};
90 obj1.__defineGetter__("hotel", getter);
91 obj1.__defineSetter__("hotel", setter);
92 obj2 = {};
93 obj2.__defineGetter__("hotel", getter);
94 obj2.__defineSetter__("hotel", setter);
95 assertTrue(%HaveSameMap(obj1, obj2));
96
97 // Attribute-only change, shouldn't affect previous descriptor properties.
98 obj1 = {};
99 dp(obj1, "india", { get: getter, configurable: true, enumerable: true });
100 assertEquals(getter, gop(obj1, "india").get);
101 assertTrue(gop(obj1, "india").configurable);
102 assertTrue(gop(obj1, "india").enumerable);
103 dp(obj1, "india", { enumerable: false });
104 assertEquals(getter, gop(obj1, "india").get);
105 assertTrue(gop(obj1, "india").configurable);
106 assertFalse(gop(obj1, "india").enumerable);
107
108 // Attribute-only change, shouldn't affect objects with previously shared maps.
109 obj1 = {};
110 dp(obj1, "juliet", { set: setter, configurable: true, enumerable: false });
111 assertEquals(setter, gop(obj1, "juliet").set);
112 assertTrue(gop(obj1, "juliet").configurable);
113 assertFalse(gop(obj1, "juliet").enumerable);
114 obj2 = {};
115 dp(obj2, "juliet", { set: setter, configurable: true, enumerable: false });
116 assertEquals(setter, gop(obj2, "juliet").set);
117 assertTrue(gop(obj2, "juliet").configurable);
118 assertFalse(gop(obj2, "juliet").enumerable);
119 dp(obj1, "juliet", { set: setter, configurable: false, enumerable: true });
120 assertEquals(setter, gop(obj1, "juliet").set);
121 assertFalse(gop(obj1, "juliet").configurable);
122 assertTrue(gop(obj1, "juliet").enumerable);
123 assertEquals(setter, gop(obj2, "juliet").set);
124 assertTrue(gop(obj2, "juliet").configurable);
125 assertFalse(gop(obj2, "juliet").enumerable);
126
127 // Two objects with the different getters.
128 obj1 = {};
129 dp(obj1, "kilo", { get: getter });
130 obj2 = {};
131 dp(obj2, "kilo", { get: anotherGetter });
132 assertEquals(getter, gop(obj1, "kilo").get);
133 assertEquals(anotherGetter, gop(obj2, "kilo").get);
134 assertFalse(%HaveSameMap(obj1, obj2));
135
136 // Two objects with the same getters and different setters.
137 obj1 = {};
138 dp(obj1, "lima", { get: getter, set: setter });
139 obj2 = {};
140 dp(obj2, "lima", { get: getter, set: anotherSetter });
141 assertEquals(setter, gop(obj1, "lima").set);
142 assertEquals(anotherSetter, gop(obj2, "lima").set);
143 assertFalse(%HaveSameMap(obj1, obj2));
144
145 // Even 'undefined' is a kind of getter.
146 obj1 = {};
147 dp(obj1, "mike", { get: undefined });
148 assertTrue("mike" in obj1);
149 assertEquals(undefined, gop(obj1, "mike").get);
150 assertEquals(undefined, obj1.__lookupGetter__("mike"));
151 assertEquals(undefined, gop(obj1, "mike").set);
152 assertEquals(undefined, obj1.__lookupSetter__("mike"));
153
154 // Even 'undefined' is a kind of setter.
155 obj1 = {};
156 dp(obj1, "november", { set: undefined });
157 assertTrue("november" in obj1);
158 assertEquals(undefined, gop(obj1, "november").get);
159 assertEquals(undefined, obj1.__lookupGetter__("november"));
160 assertEquals(undefined, gop(obj1, "november").set);
161 assertEquals(undefined, obj1.__lookupSetter__("november"));
162
163 // Redefining a data property.
164 obj1 = {};
165 obj1.oscar = 12345;
166 dp(obj1, "oscar", { set: setter });
167 assertEquals(setter, gop(obj1, "oscar").set);
168
169 // Re-adding the same getter/attributes pair.
170 obj1 = {};
171 dp(obj1, "papa", { get: getter, configurable: true });
172 dp(obj1, "papa", { get: getter, set: setter, configurable: true });
173 assertEquals(getter, gop(obj1, "papa").get);
174 assertEquals(setter, gop(obj1, "papa").set);
175 assertTrue(gop(obj1, "papa").configurable);
176 assertFalse(gop(obj1, "papa").enumerable);
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