15.2.3.7-6-a-282.js (1074B)
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: 15.2.3.7-6-a-282 6 description: > 7 Object.defineProperties - 'O' is an Arguments object, 'P' is own 8 data property of 'O' which is also defined in [[ParameterMap]] of 9 'O', test TypeError is thrown when updating the [[Value]] 10 attribute value of 'P' whose writable and configurable attributes 11 are false (10.6 [[DefineOwnProperty]] step 4) 12 includes: [propertyHelper.js] 13 ---*/ 14 15 16 var arg; 17 18 (function fun(a, b, c) { 19 arg = arguments; 20 }(0, 1, 2)); 21 22 Object.defineProperty(arg, "0", { 23 value: 0, 24 writable: false, 25 configurable: false 26 }); 27 28 try { 29 Object.defineProperties(arg, { 30 "0": { 31 value: 10 32 } 33 }); 34 35 throw new Test262Error("Expected an exception."); 36 } catch (e) { 37 if (!(e instanceof TypeError)) { 38 throw new Test262Error("Expected TypeError, got " + e); 39 } 40 } 41 42 verifyProperty(arg, "0", { 43 value: 0, 44 writable: false, 45 enumerable: true, 46 configurable: false, 47 }); 48 49 reportCompare(0, 0);