| // Copyright 2018 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. |
| |
| Object.defineProperty(Array.prototype, Symbol.iterator, { |
| value: function* () {} |
| }); |
| const arrayIteratorProto = Object.getPrototypeOf([][Symbol.iterator]()); |
| arrayIteratorProto.next = function() {}; |
| |
| assertThrows(() => new Map([[{}, 1], [{}, 2]]), TypeError); |
| assertThrows(() => new WeakMap([[{}, 1], [{}, 2]]), TypeError); |
| assertThrows(() => new Set([{}]), TypeError); |
| assertThrows(() => new WeakSet([{}]), TypeError); |
