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97 lines
3.3 KiB
97 lines
3.3 KiB
// 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 tests that for/in statements behave correctly when cached."
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);
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function forIn1() {
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var result = [];
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var o = { x: 1 };
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for (var p in o)
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result.push(p);
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return result;
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}
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forIn1();
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Object.prototype.y = 2;
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shouldBe("forIn1()", "['x', 'y']");
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delete Object.prototype.y;
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function forIn2() {
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var result = [];
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var o = { x: 1, __proto__: null };
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for (var p in o)
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result.push(p);
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return result;
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}
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forIn2();
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shouldBe("forIn2()", "['x']");
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function forIn3(proto) {
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var result = [];
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var o = { x: 1, __proto__: proto };
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for (var p in o)
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result.push(p);
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return result;
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}
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forIn3({ __proto__: { y1: 2 } });
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forIn3({ __proto__: { y1: 2 } });
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shouldBe("forIn3({ __proto__: { y1: 2 } })", "['x', 'y1']");
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forIn3({ y2 : 2, __proto__: null });
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forIn3({ y2 : 2, __proto__: null });
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shouldBe("forIn3({ y2 : 2, __proto__: null })", "['x', 'y2']");
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forIn3({ __proto__: { __proto__: { y3 : 2 } } });
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forIn3({ __proto__: { __proto__: { y3 : 2 } } });
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shouldBe("forIn3({ __proto__: { __proto__: { y3 : 2 } } })", "['x', 'y3']");
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function forIn4(o) {
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var result = [];
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for (var p in o)
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result.push(p);
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return result;
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}
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var objectWithArrayAsProto = {};
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objectWithArrayAsProto.__proto__ = [];
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shouldBe("forIn4(objectWithArrayAsProto)", "[]");
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objectWithArrayAsProto.__proto__[0]=1;
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shouldBe("forIn4(objectWithArrayAsProto)", "['0']");
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function forIn5(o) {
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for (var i in o)
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return [i, o[i]];
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}
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shouldBe("forIn5({get foo() { return 'called getter'} })", "['foo', 'called getter']");
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shouldBe("forIn5({set foo() { } })", "['foo', undefined]");
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shouldBe("forIn5({get foo() { return 'called getter'}, set foo() { }})", "['foo', 'called getter']");
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function cacheClearing() {
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for(var j=0; j < 10; j++){
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var o = {a:1,b:2,c:3,d:4,e:5}
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try {for (i in o) { delete o.a; o = null; throw "" };}finally{continue}
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}
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}
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cacheClearing()
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