xpcom/base/nsCycleCollectionNoteRootCallback.h
author Simon Sapin <simon.sapin@exyr.org>
Mon, 31 Dec 2018 01:01:49 +0100
changeset 452667 91e7ea77c846ae753fb3a28ab81598d2dc7ac865
parent 448947 6f3709b3878117466168c40affa7bca0b60cf75b
permissions -rw-r--r--
Bug 1518045 - Publish selectors 0.21.0 on crates.io. r=emilio This cherry-picks https://github.com/servo/servo/pull/22577, with the relevant lockfile update.

/* -*- 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 nsCycleCollectionNoteRootCallback_h__
#define nsCycleCollectionNoteRootCallback_h__

class nsCycleCollectionParticipant;
class nsISupports;

class nsCycleCollectionNoteRootCallback {
 public:
  // aRoot must be canonical (ie the result of QIing to
  // nsCycleCollectionISupports).
  NS_IMETHOD_(void)
  NoteXPCOMRoot(nsISupports* aRoot,
                nsCycleCollectionParticipant* aParticipant) = 0;

  NS_IMETHOD_(void) NoteJSRoot(JSObject* aRoot) = 0;
  NS_IMETHOD_(void)
  NoteNativeRoot(void* aRoot, nsCycleCollectionParticipant* aParticipant) = 0;

  NS_IMETHOD_(void)
  NoteWeakMapping(JSObject* aMap, JS::GCCellPtr aKey, JSObject* aKeyDelegate,
                  JS::GCCellPtr aVal) = 0;

  bool WantAllTraces() const { return mWantAllTraces; }

 protected:
  nsCycleCollectionNoteRootCallback() : mWantAllTraces(false) {}

  bool mWantAllTraces;
};

#endif  // nsCycleCollectionNoteRootCallback_h__