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