blob: 4dabe6af43bfe048e2470ead6c1a6d1a5288288a (
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
|
// |reftest| async
// Copyright (C) 2022 Kevin Gibbons. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-generator-function-definitions-runtime-semantics-evaluation
description: >
`yield*` in an async generator does not await promises returned by a manually implemented async iterator.
flags: [async]
features: [async-iteration]
---*/
var innerPromise = Promise.resolve("unwrapped value");
var asyncIter = {
[Symbol.asyncIterator]() {
return this;
},
next() {
return {
done: false,
value: innerPromise,
};
},
get return() {
throw new Test262Error(".return should not be accessed");
},
get throw() {
throw new Test262Error(".throw should not be accessed");
},
};
async function* f() {
yield* asyncIter;
}
f()
.next()
.then(v => {
assert.sameValue(v.value, innerPromise, "yield* should not unwrap promises from manually-implemented async iterators");
})
.then($DONE, $DONE)
|