svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 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 | |
rossberg@chromium.org | 400388e | 2012-06-06 09:29:22 +0000 | [diff] [blame] | 28 | // Flags: --allow-natives-syntax |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 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); } |
svenpanne@chromium.org | 619781a | 2012-07-05 08:22:44 +0000 | [diff] [blame^] | 38 | var obj1, obj2, obj3, obj4; |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 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); |
svenpanne@chromium.org | 619781a | 2012-07-05 08:22:44 +0000 | [diff] [blame^] | 177 | |
| 178 | // Two objects with the same getter on the prototype chain. |
| 179 | obj1 = {}; |
| 180 | dp(obj1, "quebec", { get: getter }); |
| 181 | obj2 = Object.create(obj1); |
| 182 | obj3 = Object.create(obj2); |
| 183 | obj4 = Object.create(obj2); |
| 184 | assertTrue(%HaveSameMap(obj3, obj4)); |
| 185 | |
| 186 | // Two objects with the same setter on the prototype chain. |
| 187 | obj1 = {}; |
| 188 | dp(obj1, "romeo", { set: setter }); |
| 189 | obj2 = Object.create(obj1); |
| 190 | obj3 = Object.create(obj2); |
| 191 | obj4 = Object.create(obj2); |
| 192 | assertTrue(%HaveSameMap(obj3, obj4)); |