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// 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 invoked when evaluation of AssignmentElementList
returns an abrupt completion and the iterator has been marked as "done"
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: async-generator
es6id: 12.14.5.2
esid: sec-runtime-semantics-destructuringassignmentevaluation
---*/
//- setup
let nextCount = 0;
let returnCount = 0;
let iterable = {};
let thrower = function() {
throw new Test262Error();
};
let iterator = {
next() {
nextCount += 1;
throw new Test262Error();
},
return() {
returnCount += 1;
}
};
iterable[Symbol.iterator] = function() {
return iterator;
};
let x;
//- error
Test262Error
//- elems
[ x , ]
//- vals
iterable
//- teardown
iter.next().then(() => $DONE('Promise incorrectly fulfilled.'), ({ constructor }) => {
assert.sameValue(nextCount, 1);
assert.sameValue(returnCount, 0);
assert.sameValue(iterCount, 0);
assert.sameValue(constructor, Test262Error);
}).then($DONE, $DONE);
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