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-rw-r--r--dom/bindings/NonRefcountedDOMObject.h37
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diff --git a/dom/bindings/NonRefcountedDOMObject.h b/dom/bindings/NonRefcountedDOMObject.h
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+/* -*- 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_NonRefcountedDOMObject_h__
+#define mozilla_dom_NonRefcountedDOMObject_h__
+
+#include "nsISupportsImpl.h"
+
+namespace mozilla::dom {
+
+// Natives for DOM classes that aren't refcounted need to inherit from this
+// class.
+// If you're seeing objects of this class leak then natives for one of the DOM
+// classes inheriting from it are leaking. If the native for that class has
+// MOZ_COUNT_CTOR/DTOR in its constructor/destructor then it should show up in
+// the leak log too.
+class NonRefcountedDOMObject {
+ protected:
+ MOZ_COUNTED_DEFAULT_CTOR(NonRefcountedDOMObject)
+
+ MOZ_COUNTED_DTOR(NonRefcountedDOMObject)
+
+ NonRefcountedDOMObject(const NonRefcountedDOMObject& aOther)
+ : NonRefcountedDOMObject() {}
+
+ NonRefcountedDOMObject& operator=(const NonRefcountedDOMObject& aOther) {
+ NonRefcountedDOMObject();
+ return *this;
+ }
+};
+
+} // namespace mozilla::dom
+
+#endif /* mozilla_dom_NonRefcountedDOMObject_h__ */