23 lines
574 B
JavaScript
23 lines
574 B
JavaScript
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// Copyright 2018 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) {
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a = "" + Math.abs(a);
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return a.charCodeAt(0);
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}
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// Add '1' to the number to string table (as SeqString).
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String.fromCharCode(49);
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// Turn the SeqString into a ThinString via forced internalization.
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const o = {};
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o[(1).toString()] = 1;
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assertEquals(49, foo(1));
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assertEquals(49, foo(1));
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%OptimizeFunctionOnNextCall(foo);
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assertEquals(49, foo(1));
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