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
|
// 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-throw
description: >
Generator is not resumed after a throw completion with a promise arg before
start
info: |
AsyncGenerator.prototype.throw ( exception )
1. Let generator be the this value.
2. Let completion be Completion{[[Type]]: throw, [[Value]]: exception, [[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 throw, and generator.[[AsyncGeneratorState]] is
"suspendedStart", generator is closed without being resumed.
AsyncGeneratorReject will not unwrap Promise values
flags: [async]
features: [async-iteration]
---*/
var g = async function*() {
throw new Test262Error('Generator must not be resumed.');
};
var it = g();
var promise = new Promise(function() {});
it.throw(promise).then($DONE, function(err) {
assert.sameValue(err, promise, 'AsyncGeneratorReject(generator, completion.[[Value]])');
it.next().then(function(ret) {
assert.sameValue(ret.value, undefined, 'Generator is closed');
assert.sameValue(ret.done, true, 'Generator is closed');
}).then($DONE, $DONE);
}).catch($DONE);
|
