QuickGraph.Heap.GcTypeHeap.TouchingInPlace C# (CSharp) 메소드

        private GcTypeHeap TouchingInPlace(string typeNames)
        {
            if (String.IsNullOrEmpty(typeNames))
                throw new ArgumentNullException("typeNames");

            var filter = FilterHelper.ToFilter(typeNames);
            Console.WriteLine("filtering nodes not connected to type matching '{0}'", filter);
            var colors = new Dictionary<GcType, GraphColor>(this.graph.VertexCount);
            foreach (var type in this.graph.Vertices)
                colors.Add(type, GraphColor.White);

            var rgraph = new ReversedBidirectionalGraph<GcType, GcTypeEdge>(graph);
            foreach (var type in this.graph.Vertices)
            {
                if (filter.Match(type.Name))
                {
                    { // parents
                        var dfs =
                            new DepthFirstSearchAlgorithm<GcType, ReversedEdge<GcType, GcTypeEdge>>(rgraph, colors);
                        dfs.Visit(type);
                    }
                    { // children
                        var dfs = new DepthFirstSearchAlgorithm<GcType, GcTypeEdge>(graph, colors);
                        dfs.Visit(type);
                    }
                }
            }
            // remove all white vertices
            this.graph.RemoveVertexIf(t => colors[t] == GraphColor.White);
            Console.WriteLine("resulting {0} types, {1} edges", graph.VertexCount, graph.EdgeCount);
            return this;
        }