| // Copyright 2020 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. | |
| let v0 = [0, 1]; | |
| v0.constructor = { | |
| [Symbol.species]: function() { | |
| let v1 = [2]; | |
| Object.defineProperty(v1, "length", {writable: false}); | |
| return v1; | |
| } | |
| } | |
| assertThrows(() => Array.prototype.map.call(v0, function() {}), TypeError); |