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// Copyright (C) 2015 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-array.from
es6id: 22.1.2.1
description: Setting length of object (traversed via iterator)
info: |
[...]
6. If usingIterator is not undefined, then
[...]
g. Repeat
[...]
iv. If next is false, then
1. Let setStatus be Set(A, "length", k, true).
2. ReturnIfAbrupt(setStatus).
3. Return A.
features: [Symbol.iterator]
---*/
var items = {};
var result, nextIterResult, lastIterResult;
items[Symbol.iterator] = function() {
return {
next: function() {
var result = nextIterResult;
nextIterResult = lastIterResult;
return result;
}
};
};
nextIterResult = lastIterResult = {
done: true
};
result = Array.from(items);
assert.sameValue(result.length, 0);
nextIterResult = {
done: false
};
lastIterResult = {
done: true
};
result = Array.from(items);
assert.sameValue(result.length, 1);
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