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 function props(x) { 29 var array = []; 30 for (var p in x) array.push(p); 31 return array.sort(); 32 } 33 34 assertEquals(0, props({}).length, "olen0"); 35 assertEquals(1, props({x:1}).length, "olen1"); 36 assertEquals(2, props({x:1, y:2}).length, "olen2"); 37 38 assertArrayEquals(["x"], props({x:1}), "x"); 39 assertArrayEquals(["x", "y"], props({x:1, y:2}), "xy"); 40 assertArrayEquals(["x", "y", "zoom"], props({x:1, y:2, zoom:3}), "xyzoom"); 41 42 assertEquals(0, props([]).length, "alen0"); 43 assertEquals(1, props([1]).length, "alen1"); 44 assertEquals(2, props([1,2]).length, "alen2"); 45 46 assertArrayEquals(["0"], props([1]), "0"); 47 assertArrayEquals(["0", "1"], props([1,2]), "01"); 48 assertArrayEquals(["0", "1", "2"], props([1,2,3]), "012"); 49 50 var o = {}; 51 var a = []; 52 for (var i = 0x0020; i < 0x01ff; i+=2) { 53 var s = 'char:' + String.fromCharCode(i); 54 a.push(s); 55 o[s] = i; 56 } 57 assertArrayEquals(a, props(o), "charcodes"); 58 59 var a = []; 60 assertEquals(0, props(a).length, "proplen0"); 61 a[Math.pow(2,30)-1] = 0; 62 assertEquals(1, props(a).length, "proplen1"); 63 a[Math.pow(2,31)-1] = 0; 64 assertEquals(2, props(a).length, "proplen2"); 65 a[1] = 0; 66 assertEquals(3, props(a).length, "proplen3"); 67 68 for (var hest = 'hest' in {}) { } 69 assertEquals('hest', hest, "empty-no-override"); 70 71 var result = ''; 72 for (var p in {a : [0], b : 1}) { result += p; } 73 assertEquals('ab', result, "ab"); 74 75 var result = ''; 76 for (var p in {a : {v:1}, b : 1}) { result += p; } 77 assertEquals('ab', result, "ab-nodeep"); 78 79 var result = ''; 80 for (var p in { get a() {}, b : 1}) { result += p; } 81 assertEquals('ab', result, "abget"); 82 83 var result = ''; 84 for (var p in { get a() {}, set a(x) {}, b : 1}) { result += p; } 85 assertEquals('ab', result, "abgetset"); 86 87 88 // Test that for-in in the global scope works with a keyed property as "each". 89 // Test outside a loop and in a loop for multiple iterations. 90 a = [1,2,3,4]; 91 x = {foo:5, bar:6, zip:7, glep:9, 10:11}; 92 delete x.bar; 93 y = {} 94 95 for (a[2] in x) { 96 y[a[2]] = x[a[2]]; 97 } 98 99 assertEquals(5, y.foo, "y.foo"); 100 assertEquals("undefined", typeof y.bar, "y.bar"); 101 assertEquals(7, y.zip, "y.zip"); 102 assertEquals(9, y.glep, "y.glep"); 103 assertEquals(11, y[10], "y[10]"); 104 assertEquals("undefined", typeof y[2], "y[2]"); 105 assertEquals("undefined", typeof y[0], "y[0]"); 106 107 for (i=0 ; i < 3; ++i) { 108 y = {} 109 110 for (a[2] in x) { 111 y[a[2]] = x[a[2]]; 112 } 113 114 assertEquals(5, y.foo, "y.foo"); 115 assertEquals("undefined", typeof y.bar, "y.bar"); 116 assertEquals(7, y.zip, "y.zip"); 117 assertEquals(9, y.glep, "y.glep"); 118 assertEquals(11, y[10], "y[10]"); 119 assertEquals("undefined", typeof y[2], "y[2]"); 120 assertEquals("undefined", typeof y[0], "y[0]"); 121 } 122
