1 files changed, 56 insertions, 0 deletions
diff --git a/xpcom/ds/nsSupportsArrayEnumerator.h b/xpcom/ds/nsSupportsArrayEnumerator.h
new file mode 100644
index 000000000..bd316d6b9
--- /dev/null
+++ b/xpcom/ds/nsSupportsArrayEnumerator.h
@@ -0,0 +1,56 @@
+/* -*- 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 nsSupportsArrayEnumerator_h___
+#define nsSupportsArrayEnumerator_h___
+
+#include "nsCOMPtr.h"
+#include "mozilla/Attributes.h"
+
+// Disable deprecation warnings generated by nsISupportsArray and associated
+// classes.
+#if defined(__GNUC__)
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
+#elif defined(_MSC_VER)
+#pragma warning (push)
+#pragma warning (disable : 4996)
+#endif
+
+#include "nsIEnumerator.h"
+
+class nsISupportsArray;
+
+class nsSupportsArrayEnumerator final : public nsIBidirectionalEnumerator
+{
+public:
+  NS_DECL_ISUPPORTS
+
+  explicit nsSupportsArrayEnumerator(nsISupportsArray* aArray);
+
+  // nsIEnumerator methods:
+  NS_DECL_NSIENUMERATOR
+
+  // nsIBidirectionalEnumerator methods:
+  NS_DECL_NSIBIDIRECTIONALENUMERATOR
+
+private:
+  ~nsSupportsArrayEnumerator();
+
+protected:
+  nsCOMPtr<nsISupportsArray> mArray;
+  int32_t               mCursor;
+
+};
+
+#if defined(__GNUC__)
+#pragma GCC diagnostic pop
+#elif defined(_MSC_VER)
+#pragma warning (pop)
+#endif
+
+#endif // __nsSupportsArrayEnumerator_h
+