| // 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 | |
| var buf = new ArrayBuffer(0x10000); | |
| var arr = new Uint8Array(buf).fill(55); | |
| var tmp = {}; | |
| tmp[Symbol.toPrimitive] = function () { | |
| %ArrayBufferDetach(arr.buffer); | |
| return 50; | |
| } | |
| arr.copyWithin(tmp); |