| // Copyright 2012 the V8 project authors. All rights reserved. |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are |
| // met: |
| // |
| // * Redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer. |
| // * Redistributions in binary form must reproduce the above |
| // copyright notice, this list of conditions and the following |
| // disclaimer in the documentation and/or other materials provided |
| // with the distribution. |
| // * Neither the name of Google Inc. nor the names of its |
| // contributors may be used to endorse or promote products derived |
| // from this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| // Flags: --allow-natives-syntax |
| |
| // Handy abbreviations. |
| var dp = Object.defineProperty; |
| var gop = Object.getOwnPropertyDescriptor; |
| |
| function getter() { return 111; } |
| function setter(x) { print(222); } |
| function anotherGetter() { return 333; } |
| function anotherSetter(x) { print(444); } |
| var obj1, obj2; |
| |
| // Two objects with the same getter. |
| obj1 = {}; |
| dp(obj1, "alpha", { get: getter }); |
| obj2 = {}; |
| dp(obj2, "alpha", { get: getter }); |
| assertTrue(%HaveSameMap(obj1, obj2)); |
| |
| // Two objects with the same getter, oldskool. |
| obj1 = {}; |
| obj1.__defineGetter__("bravo", getter); |
| assertEquals(getter, obj1.__lookupGetter__("bravo")); |
| obj2 = {}; |
| obj2.__defineGetter__("bravo", getter); |
| assertEquals(getter, obj2.__lookupGetter__("bravo")); |
| assertTrue(%HaveSameMap(obj1, obj2)); |
| |
| // Two objects with the same setter. |
| obj1 = {}; |
| dp(obj1, "charlie", { set: setter }); |
| obj2 = {}; |
| dp(obj2, "charlie", { set: setter }); |
| assertTrue(%HaveSameMap(obj1, obj2)); |
| |
| // Two objects with the same setter, oldskool. |
| obj1 = {}; |
| obj1.__defineSetter__("delta", setter); |
| assertEquals(setter, obj1.__lookupSetter__("delta")); |
| obj2 = {}; |
| obj2.__defineSetter__("delta", setter); |
| assertEquals(setter, obj2.__lookupSetter__("delta")); |
| assertTrue(%HaveSameMap(obj1, obj2)); |
| |
| // Two objects with the same getter and setter. |
| obj1 = {}; |
| dp(obj1, "foxtrot", { get: getter, set: setter }); |
| obj2 = {}; |
| dp(obj2, "foxtrot", { get: getter, set: setter }); |
| assertTrue(%HaveSameMap(obj1, obj2)); |
| |
| // Two objects with the same getter and setter, set separately. |
| obj1 = {}; |
| dp(obj1, "golf", { get: getter, configurable: true }); |
| dp(obj1, "golf", { set: setter, configurable: true }); |
| obj2 = {}; |
| dp(obj2, "golf", { get: getter, configurable: true }); |
| dp(obj2, "golf", { set: setter, configurable: true }); |
| assertTrue(%HaveSameMap(obj1, obj2)); |
| |
| // Two objects with the same getter and setter, set separately, oldskool. |
| obj1 = {}; |
| obj1.__defineGetter__("hotel", getter); |
| obj1.__defineSetter__("hotel", setter); |
| obj2 = {}; |
| obj2.__defineGetter__("hotel", getter); |
| obj2.__defineSetter__("hotel", setter); |
| assertTrue(%HaveSameMap(obj1, obj2)); |
| |
| // Attribute-only change, shouldn't affect previous descriptor properties. |
| obj1 = {}; |
| dp(obj1, "india", { get: getter, configurable: true, enumerable: true }); |
| assertEquals(getter, gop(obj1, "india").get); |
| assertTrue(gop(obj1, "india").configurable); |
| assertTrue(gop(obj1, "india").enumerable); |
| dp(obj1, "india", { enumerable: false }); |
| assertEquals(getter, gop(obj1, "india").get); |
| assertTrue(gop(obj1, "india").configurable); |
| assertFalse(gop(obj1, "india").enumerable); |
| |
| // Attribute-only change, shouldn't affect objects with previously shared maps. |
| obj1 = {}; |
| dp(obj1, "juliet", { set: setter, configurable: true, enumerable: false }); |
| assertEquals(setter, gop(obj1, "juliet").set); |
| assertTrue(gop(obj1, "juliet").configurable); |
| assertFalse(gop(obj1, "juliet").enumerable); |
| obj2 = {}; |
| dp(obj2, "juliet", { set: setter, configurable: true, enumerable: false }); |
| assertEquals(setter, gop(obj2, "juliet").set); |
| assertTrue(gop(obj2, "juliet").configurable); |
| assertFalse(gop(obj2, "juliet").enumerable); |
| dp(obj1, "juliet", { set: setter, configurable: false, enumerable: true }); |
| assertEquals(setter, gop(obj1, "juliet").set); |
| assertFalse(gop(obj1, "juliet").configurable); |
| assertTrue(gop(obj1, "juliet").enumerable); |
| assertEquals(setter, gop(obj2, "juliet").set); |
| assertTrue(gop(obj2, "juliet").configurable); |
| assertFalse(gop(obj2, "juliet").enumerable); |
| |
| // Two objects with the different getters. |
| obj1 = {}; |
| dp(obj1, "kilo", { get: getter }); |
| obj2 = {}; |
| dp(obj2, "kilo", { get: anotherGetter }); |
| assertEquals(getter, gop(obj1, "kilo").get); |
| assertEquals(anotherGetter, gop(obj2, "kilo").get); |
| assertFalse(%HaveSameMap(obj1, obj2)); |
| |
| // Two objects with the same getters and different setters. |
| obj1 = {}; |
| dp(obj1, "lima", { get: getter, set: setter }); |
| obj2 = {}; |
| dp(obj2, "lima", { get: getter, set: anotherSetter }); |
| assertEquals(setter, gop(obj1, "lima").set); |
| assertEquals(anotherSetter, gop(obj2, "lima").set); |
| assertFalse(%HaveSameMap(obj1, obj2)); |
| |
| // Even 'undefined' is a kind of getter. |
| obj1 = {}; |
| dp(obj1, "mike", { get: undefined }); |
| assertTrue("mike" in obj1); |
| assertEquals(undefined, gop(obj1, "mike").get); |
| assertEquals(undefined, obj1.__lookupGetter__("mike")); |
| assertEquals(undefined, gop(obj1, "mike").set); |
| assertEquals(undefined, obj1.__lookupSetter__("mike")); |
| |
| // Even 'undefined' is a kind of setter. |
| obj1 = {}; |
| dp(obj1, "november", { set: undefined }); |
| assertTrue("november" in obj1); |
| assertEquals(undefined, gop(obj1, "november").get); |
| assertEquals(undefined, obj1.__lookupGetter__("november")); |
| assertEquals(undefined, gop(obj1, "november").set); |
| assertEquals(undefined, obj1.__lookupSetter__("november")); |
| |
| // Redefining a data property. |
| obj1 = {}; |
| obj1.oscar = 12345; |
| dp(obj1, "oscar", { set: setter }); |
| assertEquals(setter, gop(obj1, "oscar").set); |
| |
| // Re-adding the same getter/attributes pair. |
| obj1 = {}; |
| dp(obj1, "papa", { get: getter, configurable: true }); |
| dp(obj1, "papa", { get: getter, set: setter, configurable: true }); |
| assertEquals(getter, gop(obj1, "papa").get); |
| assertEquals(setter, gop(obj1, "papa").set); |
| assertTrue(gop(obj1, "papa").configurable); |
| assertFalse(gop(obj1, "papa").enumerable); |