| // Make sure we properly update the getter when we update the holder |
| // shape in the getter IC. |
| function f(obj) { |
| var x; |
| for (var i = 0; i < 20; ++i) { |
| x = obj.foo; |
| } |
| return x; |
| } |
| |
| var proto = {}; |
| var obj1 = Object.create(proto); |
| var obj2 = Object.create(proto); |
| obj2.bar = "5"; |
| Object.defineProperty(proto, "foo", |
| { get: function() { return 1; }, configurable: true }); |
| assertEq(f(obj1), 1); |
| assertEq(f(obj2), 1); |
| |
| Object.defineProperty(proto, "foo", |
| { get: function() { return 2; }, configurable: true }); |
| assertEq(f(obj1), 2); |
| assertEq(f(obj2), 2); |
| |
| // Make sure we properly update the setter when we update the holder |
| // shape in the setter IC. |
| function g(obj) { |
| var x; |
| for (var i = 0; i < 20; ++i) { |
| obj.foo = i; |
| } |
| return x; |
| } |
| |
| var proto = {}; |
| var obj1 = Object.create(proto); |
| var obj2 = Object.create(proto); |
| var sideEffect; |
| obj2.bar = "5"; |
| Object.defineProperty(proto, "foo", |
| { set: function() { sideEffect = 1; }, configurable: true }); |
| g(obj1); |
| assertEq(sideEffect, 1); |
| sideEffect = undefined; |
| g(obj2); |
| assertEq(sideEffect, 1); |
| sideEffect = undefined; |
| |
| Object.defineProperty(proto, "foo", |
| { set: function() { sideEffect = 2; }, configurable: true }); |
| g(obj1); |
| assertEq(sideEffect, 2); |
| sideEffect = undefined; |
| g(obj2); |
| assertEq(sideEffect, 2); |