30 lines
584 B
JavaScript
30 lines
584 B
JavaScript
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// Copyright 2016 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Flags: --allow-natives-syntax
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var o = {v:1};
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var deopt = false;
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Object.defineProperty(o, "x", {
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get: function() { return this.v; },
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set: function(v) {
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this.v = v;
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if (deopt) {
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%DeoptimizeFunction(foo);
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}
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}
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});
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function foo(o) {
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var x = "x";
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return o[x]++;
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}
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assertEquals(1, foo(o));
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assertEquals(2, foo(o));
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%OptimizeFunctionOnNextCall(foo);
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deopt = true;
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assertEquals(3, foo(o));
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