1 files changed, 44 insertions, 0 deletions
diff --git a/xpcom/base/nsCycleCollectionNoteRootCallback.h b/xpcom/base/nsCycleCollectionNoteRootCallback.h
new file mode 100644
index 0000000000..21dc89394a
--- /dev/null
+++ b/xpcom/base/nsCycleCollectionNoteRootCallback.h
@@ -0,0 +1,44 @@
+/* -*- 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__
+
+#include "nscore.h"
+
+class nsCycleCollectionParticipant;
+class nsISupports;
+class JSObject;
+
+namespace JS {
+class GCCellPtr;
+}
+
+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__