| // Copyright (C) 2015 the V8 project authors. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| /*--- |
| es6id: 9.5.9 |
| description: > |
| [[Set]] ( P, V, Receiver) |
| |
| Throws a TypeError when target property is an accessor not configurable and |
| and set is undefined. |
| info: | |
| 14. If targetDesc is not undefined, then |
| b. If IsAccessorDescriptor(targetDesc) and targetDesc.[[Configurable]] is false, then |
| i. If targetDesc.[[Set]] is undefined, throw a TypeError exception. |
| |
| features: [Proxy] |
| ---*/ |
| |
| var target = {}; |
| var handler = { |
| set: function(t, prop, value, receiver) { |
| return true; |
| } |
| }; |
| var p = new Proxy(target, handler); |
| |
| Object.defineProperty(target, 'attr', { |
| configurable: false, |
| set: undefined |
| }); |
| |
| assert.throws(TypeError, function() { |
| p.attr = 'bar'; |
| }); |
| |
| assert.throws(TypeError, function() { |
| p['attr'] = 'bar'; |
| }); |