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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: >
TypeError is thrown if CreateDataProperty fails.
(items is not iterable)
info: |
Array.from ( items [ , mapfn [ , thisArg ] ] )
[...]
4. Let usingIterator be ? GetMethod(items, @@iterator).
5. If usingIterator is not undefined, then
[...]
6. NOTE: items is not an Iterable so assume it is an array-like object.
[...]
12. Repeat, while k < len
[...]
e. Perform ? CreateDataPropertyOrThrow(A, Pk, mappedValue).
[...]
CreateDataPropertyOrThrow ( O, P, V )
[...]
3. Let success be ? CreateDataProperty(O, P, V).
4. If success is false, throw a TypeError exception.
---*/
var items = {
length: 1,
};
var A1 = function(_length) {
this.length = 0;
Object.preventExtensions(this);
};
assert.throws(TypeError, function() {
Array.from.call(A1, items);
});
var A2 = function(_length) {
Object.defineProperty(this, "0", {
writable: true,
configurable: false,
});
};
assert.throws(TypeError, function() {
Array.from.call(A2, items);
});
reportCompare(0, 0);
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