1 files changed, 38 insertions, 0 deletions
diff --git a/dom/xslt/base/txNamespaceMap.h b/dom/xslt/base/txNamespaceMap.h
new file mode 100644
index 0000000000..e2be7ebf15
--- /dev/null
+++ b/dom/xslt/base/txNamespaceMap.h
@@ -0,0 +1,38 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* 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 TRANSFRMX_TXNAMESPACEMAP_H
+#define TRANSFRMX_TXNAMESPACEMAP_H
+
+#include "nsAtom.h"
+#include "nsCOMPtr.h"
+#include "nsTArray.h"
+
+class txNamespaceMap {
+ public:
+  txNamespaceMap();
+  txNamespaceMap(const txNamespaceMap& aOther);
+
+  nsrefcnt AddRef() { return ++mRefCnt; }
+  nsrefcnt Release() {
+    if (--mRefCnt == 0) {
+      mRefCnt = 1;  // stabilize
+      delete this;
+      return 0;
+    }
+    return mRefCnt;
+  }
+
+  nsresult mapNamespace(nsAtom* aPrefix, const nsAString& aNamespaceURI);
+  int32_t lookupNamespace(nsAtom* aPrefix);
+  int32_t lookupNamespaceWithDefault(const nsAString& aPrefix);
+
+ private:
+  nsAutoRefCnt mRefCnt;
+  nsTArray<RefPtr<nsAtom>> mPrefixes;
+  nsTArray<int32_t> mNamespaces;
+};
+
+#endif  // TRANSFRMX_TXNAMESPACEMAP_H