File: PromiseDebugging.h

package info (click to toggle)
thunderbird 1:60.8.0-1~deb9u1
  • links: PTS, VCS
  • area: main
  • in suites: stretch
  • size: 2,339,208 kB
  • sloc: cpp: 5,456,704; ansic: 2,360,384; python: 596,095; asm: 340,963; java: 326,291; xml: 258,664; sh: 84,366; makefile: 23,702; perl: 17,317; objc: 3,768; yacc: 1,766; ada: 1,681; lex: 1,364; pascal: 1,264; cs: 879; exp: 527; php: 436; lisp: 258; ruby: 153; awk: 152; sed: 53; csh: 27
file content (84 lines) | stat: -rw-r--r-- 2,962 bytes parent folder | download | duplicates (14)
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
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this file,
 * You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef mozilla_dom_PromiseDebugging_h
#define mozilla_dom_PromiseDebugging_h

#include "js/TypeDecls.h"
#include "nsTArray.h"
#include "mozilla/RefPtr.h"

namespace mozilla {

class ErrorResult;

namespace dom {
class Promise;
struct PromiseDebuggingStateHolder;
class GlobalObject;
class UncaughtRejectionObserver;
class FlushRejections;
class WorkerPrivate;

void TriggerFlushRejections();

class PromiseDebugging {
 public:
  static void Init();
  static void Shutdown();

  static void GetState(GlobalObject&, JS::Handle<JSObject*> aPromise,
                       PromiseDebuggingStateHolder& aState, ErrorResult& aRv);

  static void GetPromiseID(GlobalObject&, JS::Handle<JSObject*>, nsString&,
                           ErrorResult&);

  static void GetAllocationStack(GlobalObject&, JS::Handle<JSObject*> aPromise,
                                 JS::MutableHandle<JSObject*> aStack,
                                 ErrorResult& aRv);
  static void GetRejectionStack(GlobalObject&, JS::Handle<JSObject*> aPromise,
                                JS::MutableHandle<JSObject*> aStack,
                                ErrorResult& aRv);
  static void GetFullfillmentStack(GlobalObject&,
                                   JS::Handle<JSObject*> aPromise,
                                   JS::MutableHandle<JSObject*> aStack,
                                   ErrorResult& aRv);

  // Mechanism for watching uncaught instances of Promise.
  static void AddUncaughtRejectionObserver(
      GlobalObject&, UncaughtRejectionObserver& aObserver);
  static bool RemoveUncaughtRejectionObserver(
      GlobalObject&, UncaughtRejectionObserver& aObserver);

  // Mark a Promise as having been left uncaught at script completion.
  static void AddUncaughtRejection(JS::HandleObject);
  // Mark a Promise previously added with `AddUncaughtRejection` as
  // eventually consumed.
  static void AddConsumedRejection(JS::HandleObject);
  // Propagate the informations from AddUncaughtRejection
  // and AddConsumedRejection to observers.
  static void FlushUncaughtRejections();

 protected:
  static void FlushUncaughtRejectionsInternal();
  friend class FlushRejections;
  friend class mozilla::dom::WorkerPrivate;

 private:
  // Identity of the process.
  // This property is:
  // - set during initialization of the layout module,
  // prior to any Worker using it;
  // - read by both the main thread and the Workers;
  // - unset during shutdown of the layout module,
  // after any Worker has been shutdown.
  static nsString sIDPrefix;
};

}  // namespace dom
}  // namespace mozilla

#endif  // mozilla_dom_PromiseDebugging_h