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// Copyright (c) 2012 Ecma International. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es5id: 15.2.3.6-4-294-1
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 [[Writable]] attribute value of 'name'
which is defined as non-configurable (10.6 [[DefineOwnProperty]]
step 4 and 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", {
writable: 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));
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