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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-array.from
description: >
Non-writable properties are overwritten by CreateDataProperty.
(result object's "0" is non-writable, items is iterable)
info: |
Array.from ( items [ , mapfn [ , thisArg ] ] )
[...]
5. If usingIterator is not undefined, then
[...]
e. Repeat,
[...]
viii. Let defineStatus be CreateDataPropertyOrThrow(A, Pk, mappedValue).
[...]
features: [generators]
includes: [propertyHelper.js]
---*/
var items = function* () {
yield 2;
};
var A = function(_length) {
Object.defineProperty(this, "0", {
value: 1,
writable: false,
enumerable: false,
configurable: true,
});
};
var res = Array.from.call(A, items());
verifyProperty(res, "0", {
value: 2,
writable: true,
enumerable: true,
configurable: true,
});
reportCompare(0, 0);
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