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+// file      : xsd-frontend/transformations/simplifier.hxx
+// author    : Boris Kolpackov <boris@codesynthesis.com>
+// copyright : Copyright (c) 2006-2010 Code Synthesis Tools CC
+// license   : GNU GPL v2 + exceptions; see accompanying LICENSE file
+
+#ifndef XSD_FRONTEND_TRANSFORMATIONS_SIMPLIFIER_HXX
+#define XSD_FRONTEND_TRANSFORMATIONS_SIMPLIFIER_HXX
+
+#include <cult/types.hxx>
+
+#include <xsd-frontend/semantic-graph/elements.hxx> // Path
+#include <xsd-frontend/semantic-graph/schema.hxx>
+
+namespace XSDFrontend
+{
+  namespace Transformations
+  {
+    using namespace Cult::Types;
+
+    // This transformation performs various schema simplifications
+    // (e.g., removing empty compositors, etc). This transformation
+    // assumes that there are no anonymous types.
+    //
+    class Simplifier
+    {
+    public:
+      Void
+      transform (SemanticGraph::Schema&, SemanticGraph::Path const&);
+    };
+  }
+}
+
+#endif // XSD_FRONTEND_TRANSFORMATIONS_SIMPLIFIER_HXX