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diff --git a/codemaker/inc/codemaker/generatedtypeset.hxx b/codemaker/inc/codemaker/generatedtypeset.hxx
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+++ b/codemaker/inc/codemaker/generatedtypeset.hxx
@@ -0,0 +1,79 @@
+/*************************************************************************
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * Copyright 2000, 2010 Oracle and/or its affiliates.
+ *
+ * OpenOffice.org - a multi-platform office productivity suite
+ *
+ * This file is part of OpenOffice.org.
+ *
+ * OpenOffice.org is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License version 3
+ * only, as published by the Free Software Foundation.
+ *
+ * OpenOffice.org is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License version 3 for more details
+ * (a copy is included in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * version 3 along with OpenOffice.org.  If not, see
+ * <http://www.openoffice.org/license.html>
+ * for a copy of the LGPLv3 License.
+ *
+ ************************************************************************/
+
+#ifndef INCLUDED_CODEMAKER_GENERATEDTYPESET_HXX
+#define INCLUDED_CODEMAKER_GENERATEDTYPESET_HXX
+
+#include "rtl/string.hxx"
+
+#include <hash_set>
+
+/// @HTML
+
+namespace codemaker {
+
+/**
+   A simple class to track which types have already been processed by a code
+   maker.
+
+   <p>This class is not multi-thread&ndash;safe.</p>
+ */
+class GeneratedTypeSet {
+public:
+    GeneratedTypeSet() {}
+
+    ~GeneratedTypeSet() {}
+
+    /**
+       Add a type to the set of generated types.
+
+       <p>If the type was already present, nothing happens.</p>
+
+       @param type a UNO type registry name
+     */
+    void add(rtl::OString const & type) { m_set.insert(type); }
+
+    /**
+       Checks whether a given type has already been generated.
+
+       @param type a UNO type registry name
+
+       @return true iff the given type has already been generated
+     */
+    bool contains(rtl::OString const & type) const
+    { return m_set.find(type) != m_set.end(); }
+
+private:
+    GeneratedTypeSet(GeneratedTypeSet &); // not implemented
+    void operator =(GeneratedTypeSet); // not implemented
+
+    std::hash_set< rtl::OString, rtl::OStringHash > m_set;
+};
+
+}
+
+#endif // INCLUDED_CODEMAKER_GENERATEDTYPESET_HXX