| // Copyright (C) 2015 the V8 project authors. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| /*--- |
| es6id: 23.1.1.1 |
| description: > |
| Creating a new Map object without arguments doesn't throw if `set` is not |
| callable |
| info: | |
| Map ( [ iterable ] ) |
| |
| When the Set function is called with optional argument iterable the following steps are taken: |
| |
| ... |
| 5. If iterable is not present, let iterable be undefined. |
| 6. If iterable is either undefined or null, let iter be undefined. |
| 7. Else, |
| a. Let adder be Get(map, "set"). |
| b. ReturnIfAbrupt(adder). |
| c. If IsCallable(adder) is false, throw a TypeError exception. |
| ... |
| 8. If iter is undefined, return map. |
| ... |
| ---*/ |
| |
| Map.prototype.set = null; |
| |
| var m = new Map(); |
| |
| assert.sameValue(m.size, 0, 'The value of `m.size` is `0`'); |
