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// Copyright 2017 Tooru Fujisawa. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
template: default
desc: Return abrupt after calling next().then
info: |
YieldExpression: yield * AssignmentExpression
...
6. Repeat
a. If received.[[Type]] is normal, then
ii. Let innerResult be ? Invoke(iterator, "next",
« received.[[Value]] »).
iii. If generatorKind is async, then set innerResult to
? Await(innerResult).
...
Await
...
2. Let promiseCapability be ! NewPromiseCapability(%Promise%).
3. Perform ! Call(promiseCapability.[[Resolve]], undefined, « promise »).
...
Promise Resolve Functions
...
8. Let then be Get(resolution, "then").
...
10. Get thenAction be then.[[Value]].
...
12. Perform EnqueueJob("PromiseJobs", PromiseResolveThenableJob, « promise,
resolution, thenAction »).
...
features: [Symbol.iterator, Symbol.asyncIterator]
flags: [async]
---*/
//- setup
var reason = {};
var obj = {
get [Symbol.iterator]() {
throw new Test262Error('it should not get Symbol.iterator');
},
[Symbol.asyncIterator]() {
return {
next() {
return {
then() {
throw reason;
}
};
}
};
}
};
//- body
yield* obj;
throw new Test262Error('abrupt completion closes iter');
//- assertions
iter.next().then(() => {
throw new Test262Error('Promise incorrectly fulfilled.');
}, v => {
assert.sameValue(v, reason, 'reject reason');
iter.next().then(({ done, value }) => {
assert.sameValue(done, true, 'the iterator is completed');
assert.sameValue(value, undefined, 'value is undefined');
}).then($DONE, $DONE);
}).catch($DONE);
|
