1 // Copyright 2015 the V8 project authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 // Flags: --allow-natives-syntax 6 7 function Inner() { 8 this.property = "OK"; 9 this.o2 = 1; 10 } 11 12 function Outer(inner) { 13 this.inner = inner; 14 } 15 16 var inner = new Inner(); 17 var outer = new Outer(inner); 18 19 Outer.prototype.boom = function() { 20 return this.inner.property; 21 } 22 23 assertEquals("OK", outer.boom()); 24 assertEquals("OK", outer.boom()); 25 %OptimizeFunctionOnNextCall(Outer.prototype.boom); 26 assertEquals("OK", outer.boom()); 27 28 inner = undefined; 29 %SetAllocationTimeout(0 /*interval*/, 2 /*timeout*/); 30 // Call something that will do GC while holding a handle to outer's map. 31 // The key is that this lets inner's map die while keeping outer's map alive. 32 delete outer.inner; 33 34 outer = new Outer({field: 1.51, property: "OK"}); 35 36 assertEquals("OK", outer.boom()); 37
