17a74ddd3dPR-URL: https://github.com/nodejs/node/pull/49639 Reviewed-By: Jiawen Geng <technicalcute@gmail.com> Reviewed-By: Rafael Gonzaga <rafael.nunu@hotmail.com> Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
21 lines
619 B
JavaScript
21 lines
619 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 --expose-externalize-string
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// Calculate string so that it isn't internalized.
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var string = createExternalizableString(((a, b) => {
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return a + b;
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})('foo', 'bar'));
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// Now externalize it.
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externalizeString(string);
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// Then internalize it by using it as a keyed property name
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// to turn it a thin string.
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var obj = {};
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obj[string];
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// Perform a string concatination.
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assertEquals('"' + string + '"', '"foobar"');
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