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// Copyright 2017 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
author: Caitlin Potter <caitp@igalia.com>
esid: sec-asyncgenerator-prototype-return
description: >
Returned generator suspended in a yield position resumes execution within
an associated finally.
info: |
AsyncGenerator.prototype.return ( value )
1. Let generator be the this value.
2. Let completion be Completion{[[Type]]: return, [[Value]]: value, [[Target]]: empty}.
3. Return ! AsyncGeneratorEnqueue(generator, completion).
AsyncGeneratorEnqueue ( generator, completion )
...
8. If state is not "executing", then
a. Perform ! AsyncGeneratorResumeNext(generator).
...
AsyncGeneratorResumeNext:
If completion.[[Type]] is return, and generator.[[AsyncGeneratorState]] is
"suspendedYield", and generator is resumed within a try-block with an
associated finally block, resume execution within finally.
flags: [async]
features: [async-iteration]
---*/
var g = async function*() {
try {
yield 1;
throw new Test262Error('Generator must be resumed in finally block.');
} finally {
yield 2;
}
};
var it = g();
it.next().then(function(ret) {
assert.sameValue(ret.value, 1, 'Initial yield');
assert.sameValue(ret.done, false, 'Initial yield');
it.return('sent-value').then(function(ret) {
assert.sameValue(ret.value, 2, 'Yield in finally block');
assert.sameValue(ret.done, false, 'Yield in finally block');
it.next().then(function(ret) {
assert.sameValue(ret.value, 'sent-value', 'AsyncGeneratorResolve(generator, resultValue, true)');
assert.sameValue(ret.done, true, 'AsyncGeneratorResolve(generator, resultValue, true)');
it.next().then(function(ret) {
assert.sameValue(ret.value, undefined, 'Generator is closed');
assert.sameValue(ret.done, true, 'Generator is closed');
}).then($DONE, $DONE);
}).catch($DONE);
}).catch($DONE);
}).catch($DONE);
|
