// Copyright (c) 2012 Ecma International. All rights reserved. // This code is governed by the BSD license found in the LICENSE file. /*--- es5id: 15.2.3.6-4-296-1 description: > Object.defineProperty - 'O' is an Arguments object of a function that has formal parameters, 'name' is own data 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 5b) includes: [propertyHelper.js] flags: [noStrict] ---*/ (function (a, b, c) { Object.defineProperty(arguments, "0", { value: 10, writable: false, enumerable: false, configurable: false }); try { Object.defineProperty(arguments, "0", { configurable: true }); $ERROR("Expected an exception."); } catch (e) { if (!(e instanceof TypeError)) { $ERROR("Expected TypeError, got " + e); } verifyEqualTo(arguments, "0", 10); verifyNotWritable(arguments, "0"); verifyNotEnumerable(arguments, "0"); verifyNotConfigurable(arguments, "0"); if (a !== 10) { $ERROR('Expected "a === 10", actually ' + a); } } }(0, 1, 2));