Arnolyzer.Analyzers.EncapsulationAnalyzers.AA1102InnerTypesMustBePrivateAnalyzer.AnalyzeSyntaxTree C# (CSharp) Метод

        private static void AnalyzeSyntaxTree(SyntaxTreeAnalysisContext context)
        {
            var syntaxRoot = context.Tree.GetRoot(context.CancellationToken);
            var outerTypeDeclarations =
                syntaxRoot.DescendantNodes(DoNotDescendIntoTypeDeclarations).Where(NodeIsTypeDeclaration).ToList();

            var innerTypeDeclarations = (from node in outerTypeDeclarations
                                         from innerNode in node.DescendantNodes().Where(NodeIsTypeDeclaration)
                                         select innerNode).Cast<BaseTypeDeclarationSyntax>();

            foreach (var identifier in 
                     from typeDeclaration in innerTypeDeclarations
                     where typeDeclaration.Modifiers.Count(t => t.Kind() == SyntaxKind.InternalKeyword ||
                                                                t.Kind() == SyntaxKind.PublicKeyword) > 0
                     select typeDeclaration.Identifier)
            {
                context.ReportDiagnostic(Diagnostic.Create(Rule, identifier.GetLocation(), identifier.Text));
            }
        }