mirror of https://github.com/tc39/test262.git
14 lines
397 B
JavaScript
14 lines
397 B
JavaScript
// Copyright 2017 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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function foo(a, i) { return a[i] + 0.5; }
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foo({}, 1);
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Array.prototype.unshift(1.5);
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assertTrue(Number.isNaN(foo({}, 1)));
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%OptimizeFunctionOnNextCall(foo);
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assertTrue(Number.isNaN(foo({}, 1)));
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