blob: 1091fe75d953ef0b32e1af76e546fd9d271a7d02 (
plain)
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
|
// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
description: Resolving with a reference to the promise itself from a fulfilled promise
es6id: 25.4.5.3
info: |
[...]
7. Return PerformPromiseThen(promise, onFulfilled, onRejected,
resultCapability).
25.4.5.3.1 PerformPromiseThen
[...]
8. Else if the value of promise's [[PromiseState]] internal slot is
"fulfilled",
a. Let value be the value of promise's [[PromiseResult]] internal slot.
b. EnqueueJob("PromiseJobs", PromiseReactionJob, «fulfillReaction,
value»).
25.4.2.1 PromiseReactionJob
[...]
8. Let status be Call(promiseCapability.[[Resolve]], undefined,
«handlerResult.[[value]]»).
[...]
25.4.1.3.2 Promise Resolve Functions
[...]
6. If SameValue(resolution, promise) is true, then
a. Let selfResolutionError be a newly created TypeError object.
b. Return RejectPromise(promise, selfResolutionError).
flags: [async]
---*/
var p1 = new Promise(function(resolve) {
resolve();
});
var p2;
p2 = p1.then(function() {
return p2;
});
p2.then(function() {
$DONE('The promise should not be fulfilled.');
}, function(reason) {
if (!reason) {
$DONE('The promise should be rejected with a value.');
return;
}
if (reason.constructor !== TypeError) {
$DONE('The promise should be rejected with a TypeError instance.');
return;
}
$DONE();
});
|
