// Copyright (c) 2012 Ecma International. All rights reserved. // This code is governed by the BSD license found in the LICENSE file. /*--- es5id: 15.2.3.7-6-a-289 description: > Object.defineProperties - 'O' is an Arguments object, 'P' 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 'P' which is defined as non-configurable (10.6 [[DefineOwnProperty]] step 4) includes: [propertyHelper.js] ---*/ var arg; (function fun(a, b, c) { arg = arguments; }(0, 1, 2)); function get_func() { return 0; } Object.defineProperty(arg, "0", { get: get_func, enumerable: true, configurable: false }); try { Object.defineProperties(arg, { "0": { configurable: true } }); $ERROR("Expected an exception."); } catch (e) { verifyEqualTo(arg, "0", get_func()); verifyEnumerable(arg, "0"); verifyNotConfigurable(arg, "0"); if (!(e instanceof TypeError)) { $ERROR("Expected TypeError, got " + e); } }