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// Copyright (C) 2020 Alexey Shvayka. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-arguments-exotic-objects-defineownproperty-p-desc
description: >
Index gets unmapped when redefined with accessor. Unmapped index is created.
info: |
[[DefineOwnProperty]] ( P, Desc )
[...]
6. Let allowed be ? OrdinaryDefineOwnProperty(args, P, newArgDesc).
7. If allowed is false, return false.
8. If isMapped is true, then
a. If IsAccessorDescriptor(Desc) is true, then
i. Call map.[[Delete]](P).
[...]
9. Return true.
flags: [noStrict]
---*/
(function(a) {
let setCalls = 0;
Object.defineProperty(arguments, "0", {
set(_v) { setCalls += 1; },
enumerable: true,
configurable: true,
});
arguments[0] = "foo";
assert.sameValue(setCalls, 1);
assert.sameValue(a, 0);
assert.sameValue(arguments[0], undefined);
Object.defineProperty(arguments, "1", {
get: () => "bar",
enumerable: true,
configurable: true,
});
assert.sameValue(arguments[1], "bar");
})(0);
reportCompare(0, 0);