15.2.3.6-4-296-1.js (1281B)
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: 15.2.3.6-4-296-1 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 which is also defined in [[ParameterMap]] of 'O', test TypeError 10 is thrown when updating the [[Configurable]] attribute value of 11 'name' which is defined as non-configurable (10.6 12 [[DefineOwnProperty]] step 4 and step 5b) 13 includes: [propertyHelper.js] 14 flags: [noStrict] 15 ---*/ 16 17 (function(a, b, c) { 18 Object.defineProperty(arguments, "0", { 19 value: 10, 20 writable: false, 21 enumerable: false, 22 configurable: false 23 }); 24 try { 25 Object.defineProperty(arguments, "0", { 26 configurable: true 27 }); 28 throw new Test262Error("Expected an exception."); 29 } catch (e) { 30 if (!(e instanceof TypeError)) { 31 throw new Test262Error("Expected TypeError, got " + e); 32 } 33 34 if (a !== 10) { 35 throw new Test262Error('Expected "a === 10", actually ' + a); 36 } 37 } 38 39 verifyProperty(arguments, "0", { 40 value: 10, 41 writable: false, 42 enumerable: false, 43 configurable: false, 44 }); 45 }(0, 1, 2)); 46 47 reportCompare(0, 0);