class XCAFDoc_LayerTool;
class XCAFDoc_MaterialTool;
class XCAFDoc_GraphNode;
+class XCAFDoc_Editor;
//! Definition of general structure of DECAF document
friend class XCAFDoc_LayerTool;
friend class XCAFDoc_MaterialTool;
friend class XCAFDoc_GraphNode;
+friend class XCAFDoc_Editor;
};