private async Task <DiagnosticAnalysisResultMap <DiagnosticAnalyzer, DiagnosticAnalysisResult> > AnalyzeOutOfProcAsync(
                RemoteHostClient client, CompilationWithAnalyzers analyzerDriver, Project project, bool forcedAnalysis, CancellationToken cancellationToken)
            {
                var solution        = project.Solution;
                var snapshotService = solution.Workspace.Services.GetService <IRemotableDataService>();

                using (var pooledObject = SharedPools.Default <Dictionary <string, DiagnosticAnalyzer> >().GetPooledObject())
                {
                    var analyzerMap = pooledObject.Object;

                    analyzerMap.AppendAnalyzerMap(analyzerDriver.Analyzers.Where(a => !a.IsInProcessOnly() && (forcedAnalysis || !a.IsOpenFileOnly(solution.Workspace))));
                    if (analyzerMap.Count == 0)
                    {
                        return(DiagnosticAnalysisResultMap.Create(ImmutableDictionary <DiagnosticAnalyzer, DiagnosticAnalysisResult> .Empty, ImmutableDictionary <DiagnosticAnalyzer, AnalyzerTelemetryInfo> .Empty));
                    }

                    var optionAsset = GetOptionsAsset(solution, project.Language, cancellationToken);

                    var argument = new DiagnosticArguments(
                        forcedAnalysis, analyzerDriver.AnalysisOptions.ReportSuppressedDiagnostics, analyzerDriver.AnalysisOptions.LogAnalyzerExecutionTime,
                        project.Id, optionAsset.Checksum, analyzerMap.Keys.ToArray());

                    using (var session = await client.TryCreateCodeAnalysisSessionAsync(solution, cancellationToken).ConfigureAwait(false))
                    {
                        if (session == null)
                        {
                            // session is not available
                            return(DiagnosticAnalysisResultMap.Create(ImmutableDictionary <DiagnosticAnalyzer, DiagnosticAnalysisResult> .Empty, ImmutableDictionary <DiagnosticAnalyzer, AnalyzerTelemetryInfo> .Empty));
                        }

                        session.AddAdditionalAssets(optionAsset);

                        var result = await session.InvokeAsync(
                            nameof(IRemoteDiagnosticAnalyzerService.CalculateDiagnosticsAsync),
                            new object[] { argument },
                            (s, c) => GetCompilerAnalysisResultAsync(s, analyzerMap, project, c), cancellationToken).ConfigureAwait(false);

                        ReportAnalyzerExceptions(project, result.Exceptions);

                        return(result);
                    }
                }
            }
            private async Task <DiagnosticAnalysisResultMap <DiagnosticAnalyzer, DiagnosticAnalysisResult> > AnalyzeOutOfProcAsync(
                RemoteHostClient client, CompilationWithAnalyzers analyzerDriver, Project project, bool forcedAnalysis, CancellationToken cancellationToken)
            {
                var solution        = project.Solution;
                var snapshotService = solution.Workspace.Services.GetService <ISolutionSynchronizationService>();

                // TODO: this should be moved out
                var analyzerMap = CreateAnalyzerMap(analyzerDriver.Analyzers.Where(a => !a.IsOpenFileOnly(project.Solution.Workspace)));

                if (analyzerMap.Count == 0)
                {
                    return(DiagnosticAnalysisResultMap.Create(ImmutableDictionary <DiagnosticAnalyzer, DiagnosticAnalysisResult> .Empty, ImmutableDictionary <DiagnosticAnalyzer, AnalyzerTelemetryInfo> .Empty));
                }

                var optionAsset = GetOptionsAsset(solution, project.Language, cancellationToken);

                var argument = new DiagnosticArguments(
                    forcedAnalysis, analyzerDriver.AnalysisOptions.ReportSuppressedDiagnostics, analyzerDriver.AnalysisOptions.LogAnalyzerExecutionTime,
                    project.Id, optionAsset.Checksum, analyzerMap.Keys.ToArray());

                using (var session = await client.TryCreateCodeAnalysisSessionAsync(solution, cancellationToken).ConfigureAwait(false))
                {
                    if (session == null)
                    {
                        // session is not available
                        return(DiagnosticAnalysisResultMap.Create(ImmutableDictionary <DiagnosticAnalyzer, DiagnosticAnalysisResult> .Empty, ImmutableDictionary <DiagnosticAnalyzer, AnalyzerTelemetryInfo> .Empty));
                    }

                    session.AddAdditionalAssets(optionAsset);

                    var result = await session.InvokeAsync(
                        WellKnownServiceHubServices.CodeAnalysisService_CalculateDiagnosticsAsync,
                        new object[] { argument },
                        (s, c) => GetCompilerAnalysisResultAsync(s, analyzerMap, project, c)).ConfigureAwait(false);

                    ReportAnalyzerExceptions(project, result.Exceptions);

                    return(result);
                }
            }