1 // Copyright 2012 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 // Flags: --expose-gc 29 30 // Handy abbreviation. 31 var dp = Object.defineProperty; 32 33 function getter() { return 111; } 34 function setter(x) { print(222); } 35 function anotherGetter() { return 333; } 36 function anotherSetter(x) { print(444); } 37 var obj1, obj2; 38 39 // obj1 and obj2 share the getter accessor. 40 obj1 = {}; 41 dp(obj1, "alpha", { get: getter, set: setter }); 42 obj2 = {} 43 dp(obj2, "alpha", { get: getter }); 44 obj1 = {}; 45 assertEquals(111, obj2.alpha); 46 gc(); 47 assertEquals(111, obj2.alpha); 48 49 // obj1, obj2, and obj3 share the getter accessor. 50 obj1 = {}; 51 dp(obj1, "alpha", { get: getter, set: setter }); 52 obj2 = {} 53 dp(obj2, "alpha", { get: getter }); 54 obj1 = {}; 55 gc(); 56 obj3 = {} 57 dp(obj3, "alpha", { get: getter }); 58 59 60 // obj1 and obj2 share the getter and setter accessor. 61 obj1 = {}; 62 dp(obj1, "alpha", { get: getter, set: setter }); 63 obj1.beta = 10; 64 obj2 = {} 65 dp(obj2, "alpha", { get: getter, set: setter }); 66 obj1 = {}; 67 assertEquals(111, obj2.alpha); 68 gc(); 69 obj2.alpha = 100 70 assertEquals(111, obj2.alpha); 71
