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// |reftest| async
// Copyright (C) 2020 Alexey Shvayka. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-%asyncfromsynciteratorprototype%.next
description: >
`next` method does not pass absent `value`.
info: |
%AsyncFromSyncIteratorPrototype%.next ( value )
[...]
5. If value is present, then
[...]
6. Else,
a. Let result be IteratorNext(syncIteratorRecord).
[...]
flags: [async]
features: [async-iteration]
includes: [asyncHelpers.js]
---*/
var nextArgumentsLength;
var syncIterator = {
[Symbol.iterator]() {
return this;
},
next() {
nextArgumentsLength = arguments.length;
return {done: true};
},
};
asyncTest(async function () {
for await (let _ of syncIterator);
assert.sameValue(nextArgumentsLength, 0);
});
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