| // Copyright 2017 the V8 project authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| // Flags: --allow-natives-syntax --expose-externalize-string |
| |
| // Calculate string so that it isn't internalized. |
| var string = createExternalizableString(((a, b) => { |
| return a + b; |
| })('foo', 'bar')); |
| |
| // Now externalize it. |
| externalizeString(string); |
| |
| // Then internalize it by using it as a keyed property name |
| // to turn it a thin string. |
| var obj = {}; |
| obj[string]; |
| |
| // Perform a string concatination. |
| assertEquals('"' + string + '"', '"foobar"'); |
