1 // Copyright 2013 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 this.x = 0; 29 30 var p = {}; 31 Object.defineProperty(p, "x", {writable:false, value:5}); 32 this.__proto__ = p; 33 34 function s(v) { 35 v.x = 1; 36 } 37 38 function s_strict(v) { 39 "use strict"; 40 v.x = 1; 41 } 42 43 function c(p) { 44 return {__proto__: p}; 45 } 46 47 var o1 = c(this); 48 var o2 = c(this); 49 50 // Initialize the store IC. 51 s(c(this)); 52 s(c(this)); 53 s_strict(c(this)); 54 s_strict(c(this)); 55 56 delete this.x; 57 58 // Verify that direct setting fails. 59 o1.x = 20; 60 assertEquals(5, o1.x); 61 62 // Verify that setting through the IC fails. 63 s(o2); 64 assertEquals(5, o2.x); 65 assertThrows("s_strict(o2);", TypeError); 66
