1b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// Copyright 2013 the V8 project authors. All rights reserved. 2b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved. 3b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// 4b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// Redistribution and use in source and binary forms, with or without 5b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// modification, are permitted provided that the following conditions 6b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// are met: 7b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// 1. Redistributions of source code must retain the above copyright 8b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// notice, this list of conditions and the following disclaimer. 9b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// 2. Redistributions in binary form must reproduce the above copyright 10b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// notice, this list of conditions and the following disclaimer in the 11b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// documentation and/or other materials provided with the distribution. 12b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// 13b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY 14b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 15b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 16b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY 17b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 18b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 19b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 20b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 21b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 22b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 23b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 24b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochdescription( 25b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch"This test checks that toString() round-trip on a function that has a array with elision does not remove a comma." 26b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch); 27b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 28b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochfunction f1() { 29b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return [,]; 30b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 31b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 32b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochfunction f2() { 33b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return [1]; 34b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 35b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 36b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochfunction f3() { 37b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return [1,]; 38b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 39b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 40b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// this is the first testcase that proves that trailing 41b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// elision comma is not removed 42b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochfunction f4() { 43b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return [1,,]; 44b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 45b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 46b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochfunction f5() { 47b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return [1,,,]; 48b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 49b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochfunction f6() { 50b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return [1,,,4]; 51b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 52b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 53b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochfunction f7() { 54b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return [,2,]; 55b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 56b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 57b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochfunction f8() { 58b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return [,2,,]; 59b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 60b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 61b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochfunction f9() { 62b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return [,2,,,5]; 63b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 64b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 65b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochfunction f10() { 66b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return [,,3,,,]; 67b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 68b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 69b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochfunction f11() { 70b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return [,,3,,,6]; 71b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 72b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 73b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochfunction f12() { 74b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return [,undefined]; 75b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 76b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 77b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochfunction f13() { 78b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return [,undefined,]; 79b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 80b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 81b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochfunction f14() { 82b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return [,undefined,,]; 83b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 84b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 85b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochfunction f15() { 86b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return [,,]; 87b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 88b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 89b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochfunction f16() { 90b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return [,,,]; 91b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 92b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 93b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochshouldBe("typeof undefined", "'undefined'"); 94b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 95b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochunevalf = function(x) { return '(' + x.toString() + ')'; }; 96b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 97b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochfunction testToStringAndLength(fn, length, lastElement) 98b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch{ 99b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // check that array length is correct 100b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch shouldBe(""+ fn +"().length", "" + length); 101b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 102b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // check that last element is what it is supposed to be 103b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch shouldBe(""+ fn +"()[" + length +"-1]", "" + lastElement); 104b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 105b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // check that toString result evaluates to code that can be evaluated 106b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // and that toString doesn't remove the trailing elision comma. 107b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch shouldBe("unevalf(eval(unevalf("+fn+")))", "unevalf(" + fn + ")"); 108b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 109b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // check that toString()ed functions should retain semantics 110b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 111b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch shouldBe("eval(unevalf("+fn+"))().length", ""+length); 112b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch shouldBe("eval(unevalf("+fn+"))()[" + length +"-1]", ""+lastElement); 113b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 114b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 115b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 116b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochtestToStringAndLength("f1", 1); 117b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochtestToStringAndLength("f2", 1, 1); 118b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochtestToStringAndLength("f3", 1,1); 119b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochtestToStringAndLength("f4", 2); 120b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochtestToStringAndLength("f5", 3); 121b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochtestToStringAndLength("f6", 4, 4); 122b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochtestToStringAndLength("f7", 2, 2); 123b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochtestToStringAndLength("f8", 3); 124b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochtestToStringAndLength("f9", 5, 5); 125b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochtestToStringAndLength("f10", 5); 126b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochtestToStringAndLength("f11", 6, 6); 127b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochtestToStringAndLength("f12", 2); 128b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochtestToStringAndLength("f13", 2); 129b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochtestToStringAndLength("f14", 3); 130b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochtestToStringAndLength("f15", 2); 131b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochtestToStringAndLength("f16", 3); 132