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28 lines
884 B
28 lines
884 B
// Copyright 2014 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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Object.defineProperty(Array.prototype, "1", {
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get: function() { return "element 1"; },
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set: function(value) { }
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});
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function test(array) {
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array.shift();
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return array;
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}
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var result = test(["0",,2]);
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assertEquals(["element 1","element 1"], result);
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assertTrue(result.hasOwnProperty("0"));
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assertFalse(result.hasOwnProperty("1"));
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result = test([{},,{}]);
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assertEquals(["element 1","element 1"], result);
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assertTrue(result.hasOwnProperty("0"));
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assertFalse(result.hasOwnProperty("1"));
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%OptimizeFunctionOnNextCall(test);
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result = test([{},,0]);
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assertEquals(["element 1","element 1"], result);
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assertTrue(result.hasOwnProperty("0"));
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assertFalse(result.hasOwnProperty("1"));
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