blob: d92732e9fd0fda7bbd9c365bebcc00cac5e652f2 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
|
// |reftest| skip-if(!this.hasOwnProperty('AsyncIterator'))
//
//
/*---
esid: pending
description: %AsyncIterator.prototype%.flatMap closes the iterator when IteratorNext throws.
info: >
Iterator Helpers proposal 2.1.6.7
1. Repeat,
...
k. Repeat, while innerAlive is true,
i. Let innerNextPromise be IteratorNext(innerIterator).
ii. IfAbruptCloseAsyncIterator(innerNextPromise, iterated).
features: [iterator-helpers]
---*/
class TestIterator extends AsyncIterator {
async next() {
return {done: false, value: 0};
}
closed = false;
async return(value) {
this.closed = true;
return {done: true, value};
}
}
class TestError extends Error {}
class InnerIterator extends AsyncIterator {
async next() {
throw new TestError();
}
}
const iter = new TestIterator();
const mapped = iter.flatMap(x => new InnerIterator());
assertEq(iter.closed, false);
mapped.next().then(
_ => assertEq(true, false, 'Expected reject.'),
err => {
assertEq(err instanceof TestError, true);
assertEq(iter.closed, true);
}
);
if (typeof reportCompare == 'function')
reportCompare(0, 0);
|
