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
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
|
// |reftest| async
// Copyright (C) 2018 Valerie Young. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-asyncgenerator-prototype-throw
description: return() call while iterator is in state executing
info: |
AsyncGenerator.prototype.throw ( error )
1. Let generator be the this value.
2. Let completion be Completion{[[Type]]: throw, [[Value]]: error, [[Target]]: empty}.
3. Return ! AsyncGeneratorEnqueue(generator, completion).
AsyncGeneratorEnqueue ( generator, completion )
...
4. Let queue be generator.[[AsyncGeneratorQueue]].
5. Let request be AsyncGeneratorRequest{[[Completion]]: completion,
[[Capability]]: promiseCapability}.
6. Append request to the end of queue.
...
AsyncGeneratorResolve ( generator, value, done )
...
2. Let queue be generator.[[AsyncGeneratorQueue]].
3. Assert: queue is not an empty List.
4. Remove the first element from queue and let next be the value of that element.
...
flags: [async]
features: [async-iteration]
---*/
var iter, result;
var thrownErr = new Error("Catch me.");
var caughtErr;
var order = 0;
var promises = []
async function* g() {
iter.throw(thrownErr).then(
function() {
$DONE(new Test262Error("throw() should result in reject promise."));
},
function(e) {
caughtErr = e;
order++;
}
);
yield 1;
yield 2;
}
iter = g();
iter.next().then(function(result) {
assert.sameValue(++order, 1);
assert.sameValue(result.value, 1);
assert.sameValue(result.done, false);
iter.next().then(function(result) {
assert.sameValue(++order, 3);
assert.sameValue(caughtErr, thrownErr);
assert.sameValue(result.done, true);
}).then($DONE, $DONE);
}).catch($DONE)
|
