Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1 | // Copyright 2013 the V8 project authors. All rights reserved. |
| 2 | // Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved. |
| 3 | // |
| 4 | // Redistribution and use in source and binary forms, with or without |
| 5 | // modification, are permitted provided that the following conditions |
| 6 | // are met: |
| 7 | // 1. Redistributions of source code must retain the above copyright |
| 8 | // notice, this list of conditions and the following disclaimer. |
| 9 | // 2. Redistributions in binary form must reproduce the above copyright |
| 10 | // notice, this list of conditions and the following disclaimer in the |
| 11 | // documentation and/or other materials provided with the distribution. |
| 12 | // |
| 13 | // THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY |
| 14 | // EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| 15 | // WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| 16 | // DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY |
| 17 | // DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
| 18 | // (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| 19 | // LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON |
| 20 | // ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 21 | // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| 22 | // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 23 | |
| 24 | description( |
| 25 | "This tests that for/in statements behave correctly when cached." |
| 26 | ); |
| 27 | |
| 28 | function forIn1() { |
| 29 | var result = []; |
| 30 | var o = { x: 1 }; |
| 31 | for (var p in o) |
| 32 | result.push(p); |
| 33 | return result; |
| 34 | } |
| 35 | forIn1(); |
| 36 | Object.prototype.y = 2; |
| 37 | shouldBe("forIn1()", "['x', 'y']"); |
| 38 | delete Object.prototype.y; |
| 39 | |
| 40 | function forIn2() { |
| 41 | var result = []; |
| 42 | var o = { x: 1, __proto__: null }; |
| 43 | for (var p in o) |
| 44 | result.push(p); |
| 45 | return result; |
| 46 | } |
| 47 | forIn2(); |
| 48 | shouldBe("forIn2()", "['x']"); |
| 49 | |
| 50 | function forIn3(proto) { |
| 51 | var result = []; |
| 52 | var o = { x: 1, __proto__: proto }; |
| 53 | for (var p in o) |
| 54 | result.push(p); |
| 55 | return result; |
| 56 | } |
| 57 | forIn3({ __proto__: { y1: 2 } }); |
| 58 | forIn3({ __proto__: { y1: 2 } }); |
| 59 | shouldBe("forIn3({ __proto__: { y1: 2 } })", "['x', 'y1']"); |
| 60 | |
| 61 | forIn3({ y2 : 2, __proto__: null }); |
| 62 | forIn3({ y2 : 2, __proto__: null }); |
| 63 | shouldBe("forIn3({ y2 : 2, __proto__: null })", "['x', 'y2']"); |
| 64 | |
| 65 | forIn3({ __proto__: { __proto__: { y3 : 2 } } }); |
| 66 | forIn3({ __proto__: { __proto__: { y3 : 2 } } }); |
| 67 | shouldBe("forIn3({ __proto__: { __proto__: { y3 : 2 } } })", "['x', 'y3']"); |
| 68 | |
| 69 | function forIn4(o) { |
| 70 | var result = []; |
| 71 | for (var p in o) |
| 72 | result.push(p); |
| 73 | return result; |
| 74 | } |
| 75 | var objectWithArrayAsProto = {}; |
| 76 | objectWithArrayAsProto.__proto__ = []; |
| 77 | shouldBe("forIn4(objectWithArrayAsProto)", "[]"); |
| 78 | objectWithArrayAsProto.__proto__[0]=1; |
| 79 | shouldBe("forIn4(objectWithArrayAsProto)", "['0']"); |
| 80 | |
| 81 | function forIn5(o) { |
| 82 | for (var i in o) |
| 83 | return [i, o[i]]; |
| 84 | } |
| 85 | |
| 86 | shouldBe("forIn5({get foo() { return 'called getter'} })", "['foo', 'called getter']"); |
| 87 | shouldBe("forIn5({set foo(v) { } })", "['foo', undefined]"); |
| 88 | shouldBe("forIn5({get foo() { return 'called getter'}, set foo(v) { }})", "['foo', 'called getter']"); |
| 89 | |
| 90 | function cacheClearing() { |
| 91 | for(var j=0; j < 10; j++){ |
| 92 | var o = {a:1,b:2,c:3,d:4,e:5} |
| 93 | try {for (i in o) { delete o.a; o = null; throw "" };}finally{continue} |
| 94 | } |
| 95 | } |
| 96 | |
| 97 | cacheClearing() |