SonarLint.VisualStudio.Integration.Vsix.SolutionAnalysisRequester.GetFullSolutionAnalysisOption C# (CSharp) Method

        private static Option<bool> GetFullSolutionAnalysisOption(IServiceProvider serviceProvider)
        {
            if (serviceProvider == null)
            {
                throw new ArgumentNullException(nameof(serviceProvider));
            }

            string codeAnalysisDllPath = typeof(Accessibility).Assembly.Location;
            if (string.IsNullOrEmpty(codeAnalysisDllPath))
            {
                Debug.Fail("Microsoft.CodeAnalysis.dll could not be located");
                return null;
            }

            FileInfo codeAnalysisAssembly = new FileInfo(codeAnalysisDllPath);
            if (!codeAnalysisAssembly.Exists)
            {
                Debug.Fail("Microsoft.CodeAnalysis.dll could not be located");
                return null;
            }

            string codeAnalysisFolderPath = codeAnalysisAssembly.Directory.FullName;
            const string codeAnalysisFeaturesDllName = "Microsoft.CodeAnalysis.Features.dll";

            // There's no public type in the DLL, so we try finding it next to Microsoft.CodeAnalysis
            string path = Path.Combine(codeAnalysisFolderPath, codeAnalysisFeaturesDllName);

            if (!File.Exists(path))
            {
                VsShellUtils.WriteToSonarLintOutputPane(serviceProvider, Strings.MissingResourceAtLocation,
                    codeAnalysisFeaturesDllName, codeAnalysisFolderPath);
                return null;
            }

            // This is only part of Visual Studio 2015 Update 2
            Option<bool> option = (Option<bool>)Assembly.LoadFile(path)
                .GetType("Microsoft.CodeAnalysis.Shared.Options.RuntimeOptions", false)
                ?.GetField("FullSolutionAnalysis")
                ?.GetValue(null);

            Debug.Assert(option != null, "RuntimeOptions is not found");
            Debug.Assert(option.Name == OptionNameFullSolutionAnalysis, OptionNameFullSolutionAnalysis + " option name changed to " + option.Name);
            Debug.Assert(option.Feature == OptionFeatureRuntime, OptionFeatureRuntime + " option feature changed to " + option.Feature);

            return option;
        }