natix.CompactDS.WaveletTree.SaveNode C# (CSharp) Method

        void SaveNode(BinaryWriter Output, WT_Node node)
        {
            var asInner = node as WT_Inner;
            if (asInner != null) {
                // isInner?
                Output.Write (true);
                GenericIO<Bitmap>.Save (Output, asInner.B);
                // since it uses pointers the extra-space by booleans is a better reflect of the
                // memory usage than a compact representation of the node
                if (asInner.Left == null) {
                    Output.Write (false);
                } else {
                    Output.Write (true);
                    SaveNode (Output, asInner.Left);
                }
                if (asInner.Right == null) {
                    Output.Write (false);
                } else {
                    Output.Write (true);
                    SaveNode (Output, asInner.Right);
                }
            } else {
                Output.Write (false);
                var asLeaf = node as WT_Leaf;
                // Output.Write ((int)asLeaf.Count);
                Output.Write ((int)asLeaf.Symbol);
            }
        }