blob: 9391d14623cb873efbf54e01afa6830132bc2cba (
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
|
// Copyright (C) 2017 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
desc: >
IteratorClose is not called when assignment evaluation has exhausted the
iterator
info: |
ArrayAssignmentPattern : [ AssignmentElementList ]
[...]
4. If iteratorRecord.[[Done]] is false, return ? IteratorClose(iterator, result).
5. Return result.
features: [Symbol.iterator]
template: async-generator
esid: sec-runtime-semantics-destructuringassignmentevaluation
---*/
//- setup
let nextCount = 0;
let returnCount = 0;
let _;
let iterator = {
next() {
nextCount += 1;
return { done: true };
},
return() {
returnCount += 1;
return {};
}
};
let iterable = {
[Symbol.iterator]() {
return iterator;
}
};
//- elems
[ _ ]
//- vals
iterable
//- body
assert.sameValue(nextCount, 1);
assert.sameValue(returnCount, 0);
//- teardown
iter.next().then(() => {
assert.sameValue(iterCount, 1);
}).then($DONE, $DONE);
|