| // Copyright (C) 2015 the V8 project authors. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| /*--- |
| es6id: 26.1.12 |
| description: > |
| Always returns true when target is an ordinary object. |
| info: | |
| 26.1.12 Reflect.preventExtensions ( target ) |
| |
| ... |
| 2. Return target.[[PreventExtensions]](). |
| |
| 9.1.4 [[PreventExtensions]] ( ) |
| |
| 1. Set the value of the [[Extensible]] internal slot of O to false. |
| 2. Return true. |
| features: [Reflect] |
| ---*/ |
| |
| var o = {}; |
| assert.sameValue( |
| Reflect.preventExtensions(o), true, |
| 'returns true after preventing extentions on an object' |
| ); |
| assert.sameValue( |
| Reflect.preventExtensions(o), true, |
| 'returns true even if the object already prevents extentions' |
| ); |