| // Copyright (C) 2016 the V8 project authors. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| /*--- |
| esid: sec-additional-properties-of-the-object.prototype-object |
| description: Behavior when "this" value is not extensible |
| info: | |
| [...] |
| 5. Perform ? DefinePropertyOrThrow(O, key, desc). |
| features: [__setter__] |
| ---*/ |
| |
| var noop = function() {}; |
| var subject = Object.preventExtensions({ existing: null }); |
| |
| subject.__defineSetter__('existing', noop); |
| |
| assert.throws(TypeError, function() { |
| subject.__defineSetter__('brand new', noop); |
| }); |
