15.2.3.6-4-318-1.js (1095B)
1 // Copyright (c) 2012 Ecma International. All rights reserved. 2 // This code is governed by the BSD license found in the LICENSE file. 3 4 /*--- 5 es5id: 15.2.3.6-4-318-1 6 description: > 7 Object.defineProperty - 'O' is an Arguments object of a function 8 that has formal parameters, 'name' is own data property of 'O', 9 test TypeError is thrown when updating the [[Writable]] attribute 10 value of 'name' which is not configurable (10.6 11 [[DefineOwnProperty]] step 4) 12 includes: [propertyHelper.js] 13 ---*/ 14 15 (function(a, b, c) { 16 Object.defineProperty(arguments, "genericProperty", { 17 writable: false, 18 configurable: false 19 }); 20 try { 21 Object.defineProperty(arguments, "genericProperty", { 22 writable: true 23 }); 24 throw new Test262Error("Expected an exception."); 25 } catch (e) { 26 if (!(e instanceof TypeError)) { 27 throw new Test262Error("Expected TypeError, got " + e); 28 } 29 } 30 31 verifyProperty(arguments, "genericProperty", { 32 value: undefined, 33 writable: false, 34 enumerable: false, 35 configurable: false, 36 }); 37 }(1, 2, 3)); 38 39 reportCompare(0, 0);