15.2.3.6-4-339-4.js (1149B)
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: 15.2.3.6-4-339-4 6 description: > 7 Object.defineProperty - Updating indexed data property 'P' with 8 attributes [[Writable]]: true, [[Enumerable]]: true, 9 [[Configurable]]: false to an accessor property does not succeed, 10 'O' is an Arguments object (8.12.9 - step 9.a) 11 ---*/ 12 13 var obj = (function() { 14 return arguments; 15 }()); 16 17 Object.defineProperty(obj, "0", { 18 value: 2010, 19 writable: true, 20 enumerable: true, 21 configurable: false 22 }); 23 var propertyDefineCorrect = obj.hasOwnProperty("0"); 24 var desc1 = Object.getOwnPropertyDescriptor(obj, "0"); 25 26 function getFunc() { 27 return 20; 28 } 29 assert.throws(TypeError, function() { 30 Object.defineProperty(obj, "0", { 31 get: getFunc 32 }); 33 }); 34 var desc2 = Object.getOwnPropertyDescriptor(obj, "0"); 35 assert(propertyDefineCorrect, 'propertyDefineCorrect !== true'); 36 assert.sameValue(desc1.value, 2010, 'desc1.value'); 37 assert.sameValue(obj[0], 2010, 'obj[0]'); 38 assert.sameValue(typeof desc2.get, "undefined", 'typeof desc2.get'); 39 40 reportCompare(0, 0);