v8/test/mjsunit/regress/regress-2163.js

// Copyright 2012 the V8 project authors. All rights reserved.
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// modification, are permitted provided that the following conditions are
// met:
//
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// Flags: --expose-gc

// Handy abbreviation.
var dp = Object.defineProperty;

function getter() { return 111; }
function setter(x) { print(222); }
function anotherGetter() { return 333; }
function anotherSetter(x) { print(444); }
var obj1, obj2;

// obj1 and obj2 share the getter accessor.
obj1 = {};
dp(obj1, "alpha", { get: getter, set: setter });
obj2 = {}
dp(obj2, "alpha", { get: getter });
obj1 = {};
assertEquals(111, obj2.alpha);
gc();
assertEquals(111, obj2.alpha);

// obj1, obj2, and obj3 share the getter accessor.
obj1 = {};
dp(obj1, "alpha", { get: getter, set: setter });
obj2 = {}
dp(obj2, "alpha", { get: getter });
obj1 = {};
gc();
obj3 = {}
dp(obj3, "alpha", { get: getter });


// obj1 and obj2 share the getter and setter accessor.
obj1 = {};
dp(obj1, "alpha", { get: getter, set: setter });
obj1.beta = 10;
obj2 = {}
dp(obj2, "alpha", { get: getter, set: setter });
obj1 = {};
assertEquals(111, obj2.alpha);
gc();
obj2.alpha = 100
assertEquals(111, obj2.alpha);