public override void Initialize()

in src/Microsoft.VisualStudio.SDK.Analyzers/VSSDK003SupportAsyncToolWindowAnalyzer.cs [48:70]

20 lines of code
4 McCabe index (conditional complexity)


        public override void Initialize(AnalysisContext context)
        {
            context.EnableConcurrentExecution();
            context.ConfigureGeneratedCodeAnalysis(GeneratedCodeAnalysisFlags.Analyze);

            // Register for compilation first so that we only activate the analyzer for applicable compilations
            context.RegisterCompilationStartAction(compilationContext =>
            {
                INamedTypeSymbol? asyncPackageType = compilationContext.Compilation.GetTypeByMetadataName(Types.AsyncPackage.FullName)?.OriginalDefinition;
                if (asyncPackageType is object)
                {
                    INamedTypeSymbol? provideToolWindowAttribute = compilationContext.Compilation.GetTypeByMetadataName(Types.ProvideToolWindowAttribute.FullName)?.OriginalDefinition;
                    bool targetVSSupportsAsyncToolWindows = asyncPackageType.MemberNames.Any(n => n == Types.AsyncPackage.GetAsyncToolWindowFactory);
                    if (targetVSSupportsAsyncToolWindows && provideToolWindowAttribute is object)
                    {
                        // Reuse the type symbols we looked up so that we don't have to look them up for every single class declaration.
                        compilationContext.RegisterSyntaxNodeAction(
                            Utils.DebuggableWrapper(ctxt => this.AnalyzeClassDeclaration(ctxt, asyncPackageType, provideToolWindowAttribute)),
                            SyntaxKind.ClassDeclaration);
                    }
                }
            });
        }