15.2.3.6-4-508.js (1038B)
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: 15.2.3.6-4-508 6 description: > 7 ES5 Attributes - fail to update [[Set]] attribute of accessor 8 property ([[Get]] is a Function, [[Set]] is undefined, 9 [[Enumerable]] is true, [[Configurable]] is false) to different 10 value 11 ---*/ 12 13 var obj = {}; 14 15 var getFunc = function() { 16 return 1001; 17 }; 18 19 var verifySetFunc = "data"; 20 var setFunc = function(value) { 21 verifySetFunc = value; 22 }; 23 24 Object.defineProperty(obj, "prop", { 25 get: getFunc, 26 set: undefined, 27 enumerable: true, 28 configurable: false 29 }); 30 31 var desc1 = Object.getOwnPropertyDescriptor(obj, "prop"); 32 assert.throws(TypeError, function() { 33 Object.defineProperty(obj, "prop", { 34 set: setFunc 35 }); 36 }); 37 var desc2 = Object.getOwnPropertyDescriptor(obj, "prop"); 38 39 assert.sameValue(typeof desc1.set, "undefined", 'typeof desc1.set'); 40 assert.sameValue(typeof desc2.set, "undefined", 'typeof desc2.set'); 41 42 reportCompare(0, 0);