15.2.3.6-4-297-1.js (1331B)
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: 15.2.3.6-4-297-1 6 description: > 7 Object.defineProperty - 'O' is an Arguments object of a function 8 that has formal parameters, 'name' is own accessor property of 'O' 9 which is also defined in [[ParameterMap]] of 'O', test TypeError 10 is thrown when updating the [[Get]] attribute value of 'name' 11 which is defined as non-configurable (10.6 [[DefineOwnProperty]] 12 step 4 and step 5a) 13 includes: [propertyHelper.js] 14 ---*/ 15 16 (function(a, b, c) { 17 function getFunc1() { 18 return 10; 19 } 20 Object.defineProperty(arguments, "0", { 21 get: getFunc1, 22 enumerable: false, 23 configurable: false 24 }); 25 26 function getFunc2() { 27 return 20; 28 } 29 try { 30 Object.defineProperty(arguments, "0", { 31 get: getFunc2 32 }); 33 throw new Test262Error("Expected an exception."); 34 } catch (e) { 35 if (a !== 0) { 36 throw new Test262Error('Expected a === 0, actually ' + a); 37 } 38 39 verifyEqualTo(arguments, "0", getFunc1()); 40 41 if (!(e instanceof TypeError)) { 42 throw new Test262Error("Expected TypeError, got " + e); 43 } 44 } 45 46 verifyProperty(arguments, "0", { 47 enumerable: false, 48 configurable: false, 49 }); 50 }(0, 1, 2)); 51 52 reportCompare(0, 0);