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// Copyright (C) 2015 André Bargull. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
info: Mapped arguments object with non-configurable property
description: >
Mapped arguments property is changed to non-configurable and
non-writable. Perform property attribute changes with a single
[[DefineOwnProperty]] call. Mapped values are unchanged, mapping
itself is removed.
flags: [noStrict]
---*/
function argumentsNonConfigurableAndNonWritable(a) {
Object.defineProperty(arguments, "0", {configurable: false, writable: false});
assert.sameValue(a, 1);
assert.sameValue(arguments[0], 1);
// Postcondition: Arguments mapping is removed.
a = 2;
assert.sameValue(a, 2);
assert.sameValue(arguments[0], 1);
}
argumentsNonConfigurableAndNonWritable(1);
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