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 24description( 25"Tests that passing the global object to an array access that will arrayify to NonArrayWithArrayStorage doesn't break things." 26); 27 28function foo(array) { 29 var result = 0; 30 for (var i = 0; i < array.length; ++i) 31 result += array[i]; 32 return result; 33} 34 35function bar(array) { 36 array[1] = 42; 37} 38 39var array = {}; 40array.length = 3; 41array[0] = 1; 42array[1] = 2; 43array[2] = 3; 44for (var i = 0; i < 200; ++i) { 45 shouldBe("foo(array)", "6"); 46 47 var otherArray = {}; 48 bar(otherArray); 49 shouldBe("otherArray[1]", "42"); 50} 51 52for (var i = 0; i < 1000; ++i) { 53 // Do strange things to ensure that the get_by_id on length goes polymorphic. 54 var array = {}; 55 if (i % 2) 56 array.x = 42; 57 array.length = 3; 58 array[0] = 1; 59 array[2] = 3; 60 array.__defineGetter__(1, function() { return 6; }); 61 62 shouldBe("foo(array)", "10"); 63 64 var otherArray = {}; 65 otherArray.__defineSetter__(0, function(value) { throw "error"; }); 66 bar(otherArray); 67 shouldBe("otherArray[1]", "42"); 68} 69 70var w = this; 71w[0] = 1; 72w.length = 1; 73var thingy = false; 74w.__defineSetter__(1, function(value) { thingy = value; }); 75shouldBe("foo(w)", "1"); 76shouldBe("thingy", "false"); 77 78// At this point we check to make sure that bar doesn't end up either creating array storage for 79// the window proxy, or equally badly, storing to the already created array storage on the proxy 80// (since foo() may have made the mistake of creating array storage). That's why we do the setter 81// thingy, to detect that for index 1 we fall through the proxy to the real window object. 82bar(w); 83 84shouldBe("thingy", "42"); 85shouldBe("foo(w)", "1"); 86w.length = 2; 87shouldBe("foo(w)", "0/0"); 88