1 // Copyright 2008 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 // ---------------- 29 // Check fast objects 30 31 var o = { }; 32 assertFalse(0 in o); 33 assertFalse('x' in o); 34 assertFalse('y' in o); 35 assertTrue('toString' in o, "toString"); 36 37 var o = { x: 12 }; 38 assertFalse(0 in o); 39 assertTrue('x' in o); 40 assertFalse('y' in o); 41 assertTrue('toString' in o, "toString"); 42 43 var o = { x: 12, y: 15 }; 44 assertFalse(0 in o); 45 assertTrue('x' in o); 46 assertTrue('y' in o); 47 assertTrue('toString' in o, "toString"); 48 49 50 // ---------------- 51 // Check dense arrays 52 53 var a = [ ]; 54 assertFalse(0 in a); 55 assertFalse(1 in a); 56 assertFalse('0' in a); 57 assertFalse('1' in a); 58 assertTrue('toString' in a, "toString"); 59 60 var a = [ 1 ]; 61 assertTrue(0 in a); 62 assertFalse(1 in a); 63 assertTrue('0' in a); 64 assertFalse('1' in a); 65 assertTrue('toString' in a, "toString"); 66 67 var a = [ 1, 2 ]; 68 assertTrue(0 in a); 69 assertTrue(1 in a); 70 assertTrue('0' in a); 71 assertTrue('1' in a); 72 assertTrue('toString' in a, "toString"); 73 74 var a = [ 1, 2 ]; 75 assertFalse(0.001 in a); 76 assertTrue(-0 in a); 77 assertTrue(+0 in a); 78 assertFalse('0.0' in a); 79 assertFalse('1.0' in a); 80 assertFalse(NaN in a); 81 assertFalse(Infinity in a); 82 assertFalse(-Infinity in a); 83 84 var a = []; 85 a[1] = 2; 86 assertFalse(0 in a); 87 assertTrue(1 in a); 88 assertFalse(2 in a); 89 assertFalse('0' in a); 90 assertTrue('1' in a); 91 assertFalse('2' in a); 92 assertTrue('toString' in a, "toString"); 93 94 95 // ---------------- 96 // Check dictionary ("normalized") objects 97 98 var o = {}; 99 for (var i = 0x0020; i < 0x02ff; i += 2) { 100 o['char:' + String.fromCharCode(i)] = i; 101 } 102 for (var i = 0x0020; i < 0x02ff; i += 2) { 103 assertTrue('char:' + String.fromCharCode(i) in o); 104 assertFalse('char:' + String.fromCharCode(i + 1) in o); 105 } 106 assertTrue('toString' in o, "toString"); 107 108 var o = {}; 109 o[Math.pow(2,30)-1] = 0; 110 o[Math.pow(2,31)-1] = 0; 111 o[1] = 0; 112 assertFalse(0 in o); 113 assertTrue(1 in o); 114 assertFalse(2 in o); 115 assertFalse(Math.pow(2,30)-2 in o); 116 assertTrue(Math.pow(2,30)-1 in o); 117 assertFalse(Math.pow(2,30)-0 in o); 118 assertTrue(Math.pow(2,31)-1 in o); 119 assertFalse(0.001 in o); 120 assertFalse('0.0' in o); 121 assertFalse('1.0' in o); 122 assertFalse(NaN in o); 123 assertFalse(Infinity in o); 124 assertFalse(-Infinity in o); 125 assertFalse(-0 in o); 126 assertFalse(+0 in o); 127 assertTrue('toString' in o, "toString"); 128 129 130 // ---------------- 131 // Check sparse arrays 132 133 var a = []; 134 a[Math.pow(2,30)-1] = 0; 135 a[Math.pow(2,31)-1] = 0; 136 a[1] = 0; 137 assertFalse(0 in a, "0 in a"); 138 assertTrue(1 in a, "1 in a"); 139 assertFalse(2 in a, "2 in a"); 140 assertFalse(Math.pow(2,30)-2 in a, "Math.pow(2,30)-2 in a"); 141 assertTrue(Math.pow(2,30)-1 in a, "Math.pow(2,30)-1 in a"); 142 assertFalse(Math.pow(2,30)-0 in a, "Math.pow(2,30)-0 in a"); 143 assertTrue(Math.pow(2,31)-1 in a, "Math.pow(2,31)-1 in a"); 144 assertFalse(0.001 in a, "0.001 in a"); 145 assertFalse('0.0' in a,"'0.0' in a"); 146 assertFalse('1.0' in a,"'1.0' in a"); 147 assertFalse(NaN in a,"NaN in a"); 148 assertFalse(Infinity in a,"Infinity in a"); 149 assertFalse(-Infinity in a,"-Infinity in a"); 150 assertFalse(-0 in a,"-0 in a"); 151 assertFalse(+0 in a,"+0 in a"); 152 assertTrue('toString' in a, "toString"); 153 154 // ------------- 155 // Check negative indices in arrays. 156 var a = []; 157 assertFalse(-1 in a); 158 a[-1] = 43; 159 assertTrue(-1 in a); 160
