| // Copyright (c) 2012 Ecma International. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| |
| /*--- |
| es5id: 15.2.3.6-4-318-1 |
| description: > |
| Object.defineProperty - 'O' is an Arguments object of a function |
| that has formal parameters, 'name' is own data property of 'O', |
| test TypeError is thrown when updating the [[Writable]] attribute |
| value of 'name' which is not configurable (10.6 |
| [[DefineOwnProperty]] step 4) |
| includes: [propertyHelper.js] |
| ---*/ |
| |
| (function(a, b, c) { |
| Object.defineProperty(arguments, "genericProperty", { |
| writable: false, |
| configurable: false |
| }); |
| try { |
| Object.defineProperty(arguments, "genericProperty", { |
| writable: true |
| }); |
| $ERROR("Expected an exception."); |
| } catch (e) { |
| verifyEqualTo(arguments, "genericProperty", undefined); |
| |
| verifyNotWritable(arguments, "genericProperty"); |
| |
| verifyNotEnumerable(arguments, "genericProperty"); |
| |
| verifyNotConfigurable(arguments, "genericProperty"); |
| |
| if (!(e instanceof TypeError)) { |
| $ERROR("Expected TypeError, got " + e); |
| } |
| |
| } |
| }(1, 2, 3)); |