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.__proto__ = null; 29 this.x = 10; 30 delete this.x; 31 32 function s(v) { 33 return v.x = 1; 34 } 35 36 function s_strict(v) { 37 "use strict"; 38 return v.x = 1; 39 } 40 41 function c() { 42 var o = {__proto__:this}; 43 return o; 44 } 45 46 var o1 = c(); 47 var o2 = c(); 48 var o1_strict = c(); 49 var o2_strict = c(); 50 var o3 = c(); 51 var o4 = c(); 52 53 // Initialize the store IC. 54 s(o1); 55 s(o2); 56 s_strict(o1_strict); 57 s_strict(o2_strict); 58 59 Object.defineProperty(this, "x", {writable:false, configurable:true}); 60 61 // Verify that directly setting x fails. 62 o3.x = 1; 63 assertEquals(undefined, o3.x); 64 65 // Verify that setting x through the IC fails. 66 assertThrows("s_strict(o4)", TypeError); 67 s(o4); 68 assertEquals(undefined, o4.x); 69
