1a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// Copyright 2008 the V8 project authors. All rights reserved. 2a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// Redistribution and use in source and binary forms, with or without 3a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// modification, are permitted provided that the following conditions are 4a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// met: 5a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// 6a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// * Redistributions of source code must retain the above copyright 7a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// notice, this list of conditions and the following disclaimer. 8a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// * Redistributions in binary form must reproduce the above 9a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// copyright notice, this list of conditions and the following 10a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// disclaimer in the documentation and/or other materials provided 11a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// with the distribution. 12a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// * Neither the name of Google Inc. nor the names of its 13a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// contributors may be used to endorse or promote products derived 14a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// from this software without specific prior written permission. 15a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// 16a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 28a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// Flags: --expose-gc 29a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 30a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockfunction for_in_null() { 31a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block try { 32a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block for (var x in null) { 33a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block return false; 34a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 35a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } catch(e) { 36a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block return false; 37a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 38a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block return true; 39a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 40a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 41a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockfunction for_in_undefined() { 42a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block try { 43a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block for (var x in undefined) { 44a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block return false; 45a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 46a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } catch(e) { 47a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block return false; 48a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 49a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block return true; 50a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 51a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 52a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockfor (var i = 0; i < 10; ++i) { 53a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block assertTrue(for_in_null()); 54a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block gc(); 55a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 56a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 57a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockfor (var j = 0; j < 10; ++j) { 58a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block assertTrue(for_in_undefined()); 59a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block gc(); 60a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 61a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 62a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockassertEquals(10, i); 63a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockassertEquals(10, j); 64a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 6550ef84f5fad2def87d3fbc737bec4a32711fdef4Kristian Monsen 6650ef84f5fad2def87d3fbc737bec4a32711fdef4Kristian Monsenfunction Accumulate(x) { 6750ef84f5fad2def87d3fbc737bec4a32711fdef4Kristian Monsen var accumulator = ""; 6850ef84f5fad2def87d3fbc737bec4a32711fdef4Kristian Monsen for (var i in x) { 6950ef84f5fad2def87d3fbc737bec4a32711fdef4Kristian Monsen accumulator += i; 7050ef84f5fad2def87d3fbc737bec4a32711fdef4Kristian Monsen } 7150ef84f5fad2def87d3fbc737bec4a32711fdef4Kristian Monsen return accumulator; 7250ef84f5fad2def87d3fbc737bec4a32711fdef4Kristian Monsen} 7350ef84f5fad2def87d3fbc737bec4a32711fdef4Kristian Monsen 7450ef84f5fad2def87d3fbc737bec4a32711fdef4Kristian Monsenfor (var i = 0; i < 3; ++i) { 7550ef84f5fad2def87d3fbc737bec4a32711fdef4Kristian Monsen var elements = Accumulate("abcd"); 7650ef84f5fad2def87d3fbc737bec4a32711fdef4Kristian Monsen // We do not assume that for-in enumerates elements in order. 7750ef84f5fad2def87d3fbc737bec4a32711fdef4Kristian Monsen assertTrue(-1 != elements.indexOf("0")); 7850ef84f5fad2def87d3fbc737bec4a32711fdef4Kristian Monsen assertTrue(-1 != elements.indexOf("1")); 7950ef84f5fad2def87d3fbc737bec4a32711fdef4Kristian Monsen assertTrue(-1 != elements.indexOf("2")); 8050ef84f5fad2def87d3fbc737bec4a32711fdef4Kristian Monsen assertTrue(-1 != elements.indexOf("3")); 8150ef84f5fad2def87d3fbc737bec4a32711fdef4Kristian Monsen assertEquals(4, elements.length); 8250ef84f5fad2def87d3fbc737bec4a32711fdef4Kristian Monsen} 8350ef84f5fad2def87d3fbc737bec4a32711fdef4Kristian Monsen 8450ef84f5fad2def87d3fbc737bec4a32711fdef4Kristian Monsenfunction for_in_string_prototype() { 8550ef84f5fad2def87d3fbc737bec4a32711fdef4Kristian Monsen 8650ef84f5fad2def87d3fbc737bec4a32711fdef4Kristian Monsen var x = new String("abc"); 8750ef84f5fad2def87d3fbc737bec4a32711fdef4Kristian Monsen x.foo = 19; 8850ef84f5fad2def87d3fbc737bec4a32711fdef4Kristian Monsen function B() { 8950ef84f5fad2def87d3fbc737bec4a32711fdef4Kristian Monsen this.bar = 5; 9050ef84f5fad2def87d3fbc737bec4a32711fdef4Kristian Monsen this[7] = 4; 9150ef84f5fad2def87d3fbc737bec4a32711fdef4Kristian Monsen } 9250ef84f5fad2def87d3fbc737bec4a32711fdef4Kristian Monsen B.prototype = x; 9350ef84f5fad2def87d3fbc737bec4a32711fdef4Kristian Monsen 9450ef84f5fad2def87d3fbc737bec4a32711fdef4Kristian Monsen var y = new B(); 9550ef84f5fad2def87d3fbc737bec4a32711fdef4Kristian Monsen y.gub = 13; 9650ef84f5fad2def87d3fbc737bec4a32711fdef4Kristian Monsen 9750ef84f5fad2def87d3fbc737bec4a32711fdef4Kristian Monsen var elements = Accumulate(y); 9850ef84f5fad2def87d3fbc737bec4a32711fdef4Kristian Monsen var elements1 = Accumulate(y); 9950ef84f5fad2def87d3fbc737bec4a32711fdef4Kristian Monsen // If for-in returns elements in a different order on multiple calls, this 10050ef84f5fad2def87d3fbc737bec4a32711fdef4Kristian Monsen // assert will fail. If that happens, consider if that behavior is OK. 10150ef84f5fad2def87d3fbc737bec4a32711fdef4Kristian Monsen assertEquals(elements, elements1, "For-in elements not the same both times."); 10250ef84f5fad2def87d3fbc737bec4a32711fdef4Kristian Monsen // We do not assume that for-in enumerates elements in order. 10350ef84f5fad2def87d3fbc737bec4a32711fdef4Kristian Monsen assertTrue(-1 != elements.indexOf("0")); 10450ef84f5fad2def87d3fbc737bec4a32711fdef4Kristian Monsen assertTrue(-1 != elements.indexOf("1")); 10550ef84f5fad2def87d3fbc737bec4a32711fdef4Kristian Monsen assertTrue(-1 != elements.indexOf("2")); 10650ef84f5fad2def87d3fbc737bec4a32711fdef4Kristian Monsen assertTrue(-1 != elements.indexOf("7")); 10750ef84f5fad2def87d3fbc737bec4a32711fdef4Kristian Monsen assertTrue(-1 != elements.indexOf("foo")); 10850ef84f5fad2def87d3fbc737bec4a32711fdef4Kristian Monsen assertTrue(-1 != elements.indexOf("bar")); 10950ef84f5fad2def87d3fbc737bec4a32711fdef4Kristian Monsen assertTrue(-1 != elements.indexOf("gub")); 11050ef84f5fad2def87d3fbc737bec4a32711fdef4Kristian Monsen assertEquals(13, elements.length); 11150ef84f5fad2def87d3fbc737bec4a32711fdef4Kristian Monsen 11250ef84f5fad2def87d3fbc737bec4a32711fdef4Kristian Monsen elements = Accumulate(x); 11350ef84f5fad2def87d3fbc737bec4a32711fdef4Kristian Monsen assertTrue(-1 != elements.indexOf("0")); 11450ef84f5fad2def87d3fbc737bec4a32711fdef4Kristian Monsen assertTrue(-1 != elements.indexOf("1")); 11550ef84f5fad2def87d3fbc737bec4a32711fdef4Kristian Monsen assertTrue(-1 != elements.indexOf("2")); 11650ef84f5fad2def87d3fbc737bec4a32711fdef4Kristian Monsen assertTrue(-1 != elements.indexOf("foo")); 11750ef84f5fad2def87d3fbc737bec4a32711fdef4Kristian Monsen assertEquals(6, elements.length); 11850ef84f5fad2def87d3fbc737bec4a32711fdef4Kristian Monsen} 11950ef84f5fad2def87d3fbc737bec4a32711fdef4Kristian Monsen 12050ef84f5fad2def87d3fbc737bec4a32711fdef4Kristian Monsenfor_in_string_prototype(); 12150ef84f5fad2def87d3fbc737bec4a32711fdef4Kristian Monsenfor_in_string_prototype(); 122