blob: 6ecaf2ebc1c6c4dee09c233b5fe2fdb2d2e1bd9a (
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
51
52
|
// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
desc: >
IteratorClose is not invoked when evaluation of AssignmentElementList
exhausts the iterator
info: |
ArrayAssignmentPattern :
[ AssignmentElementList , Elisionopt AssignmentRestElementopt ]
[...]
3. Let iteratorRecord be Record {[[iterator]]: iterator, [[done]]: false}.
4. Let status be the result of performing
IteratorDestructuringAssignmentEvaluation of AssignmentElementList using
iteratorRecord as the argument.
5. If status is an abrupt completion, then
a. If iteratorRecord.[[done]] is false, return IteratorClose(iterator,
status).
b. Return Completion(status).
features: [Symbol.iterator]
template: default
es6id: 12.14.5.2
esid: sec-runtime-semantics-destructuringassignmentevaluation
---*/
//- setup
var nextCount = 0;
var returnCount = 0;
var iterable = {};
var thrower = function() {
throw new Test262Error();
};
var x;
var iterator = {
next: function() {
nextCount += 1;
return { done: true };
},
return: function() {
returnCount += 1;
}
};
iterable[Symbol.iterator] = function() {
return iterator;
};
//- elems
[ x , ]
//- vals
iterable
//- body
assert.sameValue(nextCount, 1);
assert.sameValue(returnCount, 0);
|
