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| 1 // Copyright 2011 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 // Getting property names of an object with a prototype chain that |
| 29 // triggers dictionary elements in GetLocalPropertyNames() shouldn't |
| 30 // crash the runtime |
| 31 |
| 32 // Flags: --allow-natives-syntax |
| 33 |
| 34 function Object1() { |
| 35 this.foo = 1; |
| 36 } |
| 37 |
| 38 function Object2() { |
| 39 this.fuz = 2; |
| 40 this.objects = new Object(); |
| 41 this.fuz1 = 2; |
| 42 this.fuz2 = 2; |
| 43 this.fuz3 = 2; |
| 44 this.fuz4 = 2; |
| 45 this.fuz5 = 2; |
| 46 this.fuz6 = 2; |
| 47 this.fuz7 = 2; |
| 48 this.fuz8 = 2; |
| 49 this.fuz9 = 2; |
| 50 this.fuz10 = 2; |
| 51 this.fuz11 = 2; |
| 52 this.fuz12 = 2; |
| 53 this.fuz13 = 2; |
| 54 this.fuz14 = 2; |
| 55 this.fuz15 = 2; |
| 56 this.fuz16 = 2; |
| 57 this.fuz17 = 2; |
| 58 // Force dictionary-based properties |
| 59 for (x=1;x<1000;x++) { |
| 60 this["sdf" + x] = 2; |
| 61 } |
| 62 } |
| 63 |
| 64 function Object3() { |
| 65 this.boo = 3; |
| 66 } |
| 67 |
| 68 function Object4() { |
| 69 this.baz = 4; |
| 70 } |
| 71 |
| 72 obj1 = new Object1(); |
| 73 obj2 = new Object2(); |
| 74 obj3 = new Object3(); |
| 75 obj4 = new Object4(); |
| 76 |
| 77 %SetHiddenPrototype(obj4, obj3); |
| 78 %SetHiddenPrototype(obj3, obj2); |
| 79 %SetHiddenPrototype(obj2, obj1); |
| 80 |
| 81 function contains(a, obj) { |
| 82 for(var i = 0; i < a.length; i++) { |
| 83 if(a[i] === obj){ |
| 84 return true; |
| 85 } |
| 86 } |
| 87 return false; |
| 88 } |
| 89 names = %GetLocalPropertyNames(obj4); |
| 90 assertEquals(1021, names.length); |
| 91 assertTrue(contains(names, "baz")); |
| 92 assertTrue(contains(names, "boo")); |
| 93 assertTrue(contains(names, "foo")); |
| 94 assertTrue(contains(names, "fuz")); |
| 95 assertTrue(contains(names, "fuz1")); |
| 96 assertTrue(contains(names, "fuz2")); |
| 97 assertTrue(contains(names, "fuz3")); |
| 98 assertTrue(contains(names, "fuz4")); |
| 99 assertTrue(contains(names, "fuz5")); |
| 100 assertTrue(contains(names, "fuz6")); |
| 101 assertTrue(contains(names, "fuz7")); |
| 102 assertTrue(contains(names, "fuz8")); |
| 103 assertTrue(contains(names, "fuz9")); |
| 104 assertTrue(contains(names, "fuz10")); |
| 105 assertTrue(contains(names, "fuz11")); |
| 106 assertTrue(contains(names, "fuz12")); |
| 107 assertTrue(contains(names, "fuz13")); |
| 108 assertTrue(contains(names, "fuz14")); |
| 109 assertTrue(contains(names, "fuz15")); |
| 110 assertTrue(contains(names, "fuz16")); |
| 111 assertTrue(contains(names, "fuz17")); |
| 112 assertFalse(names[1020] == undefined); |
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