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: --allow-natives-syntax --inline-accessors 29 30 var forceDeopt = {x:0}; 31 32 var objectWithGetterProperty = (function (value) { 33 var obj = {}; 34 Object.defineProperty(obj, "getterProperty", { 35 get: function foo() { 36 forceDeopt.x; 37 return value; 38 }, 39 }); 40 return obj; 41 })("bad"); 42 43 function test() { 44 var iAmContextAllocated = "good"; 45 objectWithGetterProperty.getterProperty; 46 return iAmContextAllocated; 47 48 // Make sure that the local variable is context allocated. 49 function unused() { iAmContextAllocated; } 50 } 51 52 assertEquals("good", test()); 53 assertEquals("good", test()); 54 %OptimizeFunctionOnNextCall(test); 55 assertEquals("good", test()); 56 57 // At this point, foo should have been inlined into test. Let's deopt... 58 delete forceDeopt.x; 59 assertEquals("good", test()); 60
