69590a370f
R=jkummerow@chromium.org Review URL: https://codereview.chromium.org/18068003 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15370 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
105 lines
4.1 KiB
JavaScript
105 lines
4.1 KiB
JavaScript
// Copyright 2013 the V8 project authors. All rights reserved.
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// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
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//
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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
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// are met:
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// 1. 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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// 2. Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in the
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// documentation and/or other materials provided with the distribution.
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//
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// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
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// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
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// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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// ANY 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 OF THIS
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// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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description(
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"This performs a number of different tests on JavaScript getters and setters."
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);
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debug("the get set object declaration syntax");
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var o1 = { 'a':7, get b() { return this.a + 1 }, set b(x) { this.a = x } }
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shouldBe("o1.b", "8");
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o1.b = 10;
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shouldBe("o1.b", "11");
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debug("__defineGetter__ and __defineSetter__");
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var o2 = new Object()
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o2.a = 7;
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o2.__defineGetter__('b', function getB() { return this.a + 1} )
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o2.__defineSetter__('b', function setB(x) { this.a = x})
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shouldBe("o2.b", "8");
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o2.b = 10;
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shouldBe("o2.b", "11");
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debug("Setting a value without having a setter");
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var o3 = { get x() { return 42; } }
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shouldBe("o3.x = 10; o3.x", "42");
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debug("Getting a value without having a getter");
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var o4 = { set x(y) { }}
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shouldBeUndefined("o4.x");
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debug("__lookupGetter__ and __lookupSetter__");
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var o4 = new Object()
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function getB() { return this.a }
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function setB(x) { this.a = x }
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o4.__defineGetter__('b', getB)
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o4.__defineSetter__('b', setB)
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shouldBe("o4.__lookupGetter__('b')", "getB");
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shouldBe("o4.__lookupSetter__('b')", "setB");
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debug("__defineGetter__ and __defineSetter__ with various invalid arguments");
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var numExceptions = 0;
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var o5 = new Object();
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shouldThrow("o5.__defineSetter__('a', null)");
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shouldThrow("o5.__defineSetter__('a', o5)");
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shouldThrow("o5.__defineGetter__('a', null)");
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shouldThrow("o5.__defineGetter__('a', o5)");
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debug("setters and getters with exceptions");
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var o6 = { get x() { throw 'Exception in get'}, set x(f) { throw 'Exception in set'}}
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var x = 0;
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var numExceptions = 0;
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shouldThrow("x = o6.x");
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shouldBe("x", "0");
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shouldThrow("o6.x = 42");
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debug("Defining a setter should also define a getter for the same property which returns undefined. Thus, a getter defined on the prototype should not be called.");
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o7 = { 'a':7, set x(b) { this.a = b; }}
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o7.prototype = { get x() { return 42; }}
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shouldBeUndefined("o7.x")
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debug("If an object has a property and its prototype has a setter function for that property, then setting the property should set the property directly and not call the setter function.");
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var o8 = new Object()
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o8.numSets = 0;
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o8.x = 10;
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o8.__proto__.__defineSetter__('x', function() { this.numSets++; })
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o8.x = 20;
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shouldBe("o8.numSets", "0");
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({getter:"foo", b:"bar"});
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testObj=({get getter(){return 'getter was called.'}, b: 'bar'})
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shouldBe("typeof testObj.getter", "'string'");
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debug("the get set with string property name");
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var o9 = { 'a':7, get 'b'() { return this.a + 1 }, set 'b'(x) { this.a = x } }
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shouldBe("o9.b", "8");
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o9.b = 10;
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shouldBe("o9.b", "11");
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debug("the get set with numeric property name");
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var o10 = { 'a':7, get 42() { return this.a + 1 }, set 42(x) { this.a = x } }
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shouldBe("o10[42]", "8");
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o10[42] = 10;
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shouldBe("o10[42]", "11");
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