1 // Copyright 2013 the V8 project authors. All rights reserved. 2 // Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved. 3 // 4 // Redistribution and use in source and binary forms, with or without 5 // modification, are permitted provided that the following conditions 6 // are met: 7 // 1. Redistributions of source code must retain the above copyright 8 // notice, this list of conditions and the following disclaimer. 9 // 2. Redistributions in binary form must reproduce the above copyright 10 // notice, this list of conditions and the following disclaimer in the 11 // documentation and/or other materials provided with the distribution. 12 // 13 // THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY 14 // EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 15 // WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 16 // DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY 17 // DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 18 // (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 19 // LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 20 // ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 21 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 22 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 23 24 if (this.description) 25 description("Test caching with re-entrancy."); 26 27 function test1() { 28 var objects = [{prop:1}, {get prop(){return 2}}]; 29 30 function g(o) { 31 return o.prop; 32 } 33 34 for (var i = 0; i < 10000; i++) { 35 var o = { 36 get prop() { 37 try { 38 g(objects[++j]); 39 }catch(e){ 40 } 41 return 1; 42 } 43 }; 44 o[i] = i; 45 objects.push(o); 46 } 47 var j=0; 48 g(objects[0]); 49 g(objects[1]); 50 g(objects[2]); 51 g(objects[3]); 52 } 53 54 55 function test2() { 56 var objects = [Object.create({prop:1}), Object.create({get prop(){return 2}})]; 57 58 function g(o) { 59 return o.prop; 60 } 61 var proto = { 62 get prop() { 63 try { 64 g(objects[++j]); 65 }catch(e){ 66 } 67 return 1; 68 } 69 }; 70 for (var i = 0; i < 10000; i++) { 71 var o = Object.create(proto); 72 o[i] = i; 73 objects.push(o); 74 } 75 var j=0; 76 g(objects[0]); 77 g(objects[1]); 78 g(objects[2]); 79 g(objects[3]); 80 } 81 82 83 function test3() { 84 var objects = [Object.create(Object.create({prop:1})), Object.create(Object.create({get prop(){return 2}}))]; 85 86 function g(o) { 87 return o.prop; 88 } 89 var proto = { 90 get prop() { 91 try { 92 g(objects[++j]); 93 }catch(e){ 94 } 95 return 1; 96 } 97 }; 98 for (var i = 0; i < 10000; i++) { 99 var o = Object.create(Object.create(proto)); 100 o[i] = i; 101 objects.push(o); 102 } 103 var j=0; 104 g(objects[0]); 105 g(objects[1]); 106 g(objects[2]); 107 g(objects[3]); 108 } 109 110 test1(); 111 test2(); 112 test3(); 113
