// Copyright (c) 2012 Ecma International. All rights reserved. // This code is governed by the BSD license found in the LICENSE file. /*--- es5id: 15.2.3.6-4-300-1 description: > Object.defineProperty - 'O' is an Arguments object of a function that has formal parameters, 'name' is own accessor property of 'O' which is also defined in [[ParameterMap]] of 'O', test TypeError is thrown when updating the [[Configurable]] attribute value of 'name' which is defined as non-configurable (10.6 [[DefineOwnProperty]] step 4 and step 5a) includes: [propertyHelper.js] ---*/ (function(a, b, c) { function getFunc() { return 0; } Object.defineProperty(arguments, "0", { get: getFunc, enumerable: true, configurable: false }); try { Object.defineProperty(arguments, "0", { configurable: true }); throw new Test262Error("Expected an exception."); } catch (e) { if (a !== 0) { throw new Test262Error('Expected a === 0, actually ' + a); } verifyEqualTo(arguments, "0", getFunc()); verifyEnumerable(arguments, "0"); verifyNotConfigurable(arguments, "0"); if (!(e instanceof TypeError)) { throw new Test262Error("Expected TypeError, got " + e); } } }(0, 1, 2)); reportCompare(0, 0);