private static bool IsDeclaringNode()

in DataExtraction/SourceGraphExtractionUtils/Utils/DataFlowGraph.cs [639:679]
38 lines of code
16 McCabe index (conditional complexity)

        private static bool IsDeclaringNode(SyntaxNode node)
            =>
                node is FieldDeclarationSyntax || node is VariableDeclaratorSyntax || node is PropertyDeclarationSyntax ||
                node is AccessorDeclarationSyntax || node is VariableDesignationSyntax ||
                node is ParameterSyntax || node is ForEachStatementSyntax || node is CatchDeclarationSyntax ||
                node is UsingStatementSyntax || node is LockStatementSyntax;

        private void CheckUseRoots(SyntaxNode node, bool printTrace = false, string prefix = "")
        {
            if (printTrace)
            {
                var useType = IsDeclaringNode(node) ? "Declaration" : "Use";
                Console.WriteLine("{0}{1}: {2} at {3}", prefix, useType, node, node.SyntaxTree.GetLineSpan(node.Span));
            }

            var lastUseEdges = _graph.GetOutEdges(node).Where(edge => edge.Label == SourceGraphEdge.LastUse).ToList();
            if (lastUseEdges.Count == 0)
            {
                if (IsDeclaringNode(node))
                {
                    //Everything is fine
                }
                else
                {
                    Console.WriteLine("Non-Declaration has no outgoing edges: [Type {0}] {1}\n  at {2}",
                        node.GetType().FullName, node, node.SyntaxTree.GetLineSpan(node.Span));
                }
            }
            else
            {
                if (IsDeclaringNode(node))
                {
                    Console.WriteLine("Declaration has outgoing use edges: [Type {0}] {1}\n  at {2}",
                        node.GetType().FullName, node, node.SyntaxTree.GetLineSpan(node.Span));
                }
                foreach (var lastUseEdge in lastUseEdges)
                {
                    CheckUseRoots(lastUseEdge.Target.AsNode(), printTrace, prefix + "  ");
                }
            }
        }