1 // Copyright 2008-2015 the V8 project authors. All rights reserved. 2 // Redistribution and use in source and binary forms, with or without 3 // modification, are permitted provided that the following conditions are 4 // met: 5 // 6 // * Redistributions of source code must retain the above copyright 7 // notice, this list of conditions and the following disclaimer. 8 // * Redistributions in binary form must reproduce the above 9 // copyright notice, this list of conditions and the following 10 // disclaimer in the documentation and/or other materials provided 11 // with the distribution. 12 // * Neither the name of Google Inc. nor the names of its 13 // contributors may be used to endorse or promote products derived 14 // from this software without specific prior written permission. 15 // 16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 28 // This is adapted from mjsunit/for-in-special-cases.js. 29 30 // Flags: --harmony-reflect 31 32 33 function Accumulate(x) { 34 var accumulator = ""; 35 for (var i of Reflect.enumerate(Object(x))) { 36 accumulator += i; 37 } 38 return accumulator; 39 } 40 41 for (var i = 0; i < 3; ++i) { 42 var elements = Accumulate("abcd"); 43 // We do not assume that enumerate enumerates elements in order. 44 assertTrue(-1 != elements.indexOf("0")); 45 assertTrue(-1 != elements.indexOf("1")); 46 assertTrue(-1 != elements.indexOf("2")); 47 assertTrue(-1 != elements.indexOf("3")); 48 assertEquals(4, elements.length); 49 } 50 51 function for_in_string_prototype() { 52 53 var x = new String("abc"); 54 x.foo = 19; 55 function B() { 56 this.bar = 5; 57 this[7] = 4; 58 } 59 B.prototype = x; 60 61 var y = new B(); 62 y.gub = 13; 63 64 var elements = Accumulate(y); 65 var elements1 = Accumulate(y); 66 // If enumerate returns elements in a different order on multiple calls, this 67 // assert will fail. If that happens, consider if that behavior is OK. 68 assertEquals(elements, elements1, "Enumeration not the same both times."); 69 // We do not assume that enumerate enumerates elements in order. 70 assertTrue(-1 != elements.indexOf("0")); 71 assertTrue(-1 != elements.indexOf("1")); 72 assertTrue(-1 != elements.indexOf("2")); 73 assertTrue(-1 != elements.indexOf("7")); 74 assertTrue(-1 != elements.indexOf("foo")); 75 assertTrue(-1 != elements.indexOf("bar")); 76 assertTrue(-1 != elements.indexOf("gub")); 77 assertEquals(13, elements.length); 78 79 elements = Accumulate(x); 80 assertTrue(-1 != elements.indexOf("0")); 81 assertTrue(-1 != elements.indexOf("1")); 82 assertTrue(-1 != elements.indexOf("2")); 83 assertTrue(-1 != elements.indexOf("foo")); 84 assertEquals(6, elements.length); 85 } 86 87 for_in_string_prototype(); 88 for_in_string_prototype(); 89
