blob: 2bd1bc9c1264ce7489bef85fe4fca75f4bd62300 [file] [log] [blame]
// 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-writable and
non-configurable. Perform property attribute changes with two
[[DefineOwnProperty]] calls. Add intervening call to [[Set]].
flags: [noStrict]
---*/
function argumentsNonWritableThenNonConfigurableWithInterveningSet(a) {
Object.defineProperty(arguments, "0", {writable: false});
arguments[0] = 2;
Object.defineProperty(arguments, "0", {configurable: false});
assert.sameValue(a, 1);
assert.sameValue(arguments[0], 1);
// Postcondition: Arguments mapping is removed.
a = 3;
assert.sameValue(a, 3);
assert.sameValue(arguments[0], 1);
}
argumentsNonWritableThenNonConfigurableWithInterveningSet(1);