private async Task <DiagnosticAnalysisResultMap <string, DiagnosticAnalysisResultBuilder> > AnalyzeAsync(
BidirectionalMap <string, DiagnosticAnalyzer> analyzerMap,
ImmutableArray <DiagnosticAnalyzer> analyzers,
OptionSet options,
bool reportSuppressedDiagnostics,
bool logAnalyzerExecutionTime,
CancellationToken cancellationToken)
{
// flag that controls concurrency
var useConcurrent = true;
// get original compilation
var compilation = await _project.GetCompilationAsync(cancellationToken).ConfigureAwait(false);
// fork compilation with concurrent build. this is okay since WithAnalyzers will fork compilation
// anyway to attach event queue. this should make compiling compilation concurrent and make things
// faster
compilation = compilation.WithOptions(compilation.Options.WithConcurrentBuild(useConcurrent));
// We need this to fork soluton, otherwise, option is cached at document.
// all this can go away once we do this - https://github.com/dotnet/roslyn/issues/19284
var temporaryWorksapce = new TemporaryWorkspace(_project.Solution);
// TODO: can we support analyzerExceptionFilter in remote host?
// right now, host doesn't support watson, we might try to use new NonFatal watson API?
var analyzerOptions = new CompilationWithAnalyzersOptions(
options: new WorkspaceAnalyzerOptions(_project.AnalyzerOptions, MergeOptions(_project.Solution.Options, options), temporaryWorksapce.CurrentSolution),
onAnalyzerException: OnAnalyzerException,
analyzerExceptionFilter: null,
concurrentAnalysis: useConcurrent,
logAnalyzerExecutionTime: logAnalyzerExecutionTime,
reportSuppressedDiagnostics: reportSuppressedDiagnostics);
var analyzerDriver = compilation.WithAnalyzers(analyzers, analyzerOptions);
// PERF: Run all analyzers at once using the new GetAnalysisResultAsync API.
var analysisResult = await analyzerDriver.GetAnalysisResultAsync(cancellationToken).ConfigureAwait(false);
// REVIEW: the design of current analyzer engine is that, information/states in CompilationWithAnalyzer (more specifically AnalyzerManager singleton)
// will live forever until analyzer references (analyzers), which is given to CompilationWithAnalyzer, go away.
// that is not suitable for OOP since OOP will create new workspace
// for each analysis but share all resources including analyzer references.
// until, we address this issue, OOP will clear state every time analysis is done.
//
// * NOTE * this only works for now since we don't run analysis on multiple threads.
//
// best way to fix this is doing this - https://github.com/dotnet/roslyn/issues/2830
// host should control lifetime of all information related to analyzer reference explicitly
CompilationWithAnalyzers.ClearAnalyzerState(analyzers);
var builderMap = analysisResult.ToResultBuilderMap(_project, VersionStamp.Default, compilation, analysisResult.Analyzers, cancellationToken);
return(DiagnosticAnalysisResultMap.Create(
builderMap.ToImmutableDictionary(kv => GetAnalyzerId(analyzerMap, kv.Key), kv => kv.Value),
analysisResult.AnalyzerTelemetryInfo.ToImmutableDictionary(kv => GetAnalyzerId(analyzerMap, kv.Key), kv => kv.Value),
_exceptions.ToImmutableDictionary(kv => GetAnalyzerId(analyzerMap, kv.Key), kv => kv.Value.ToImmutableArray())));
}
private async Task <DiagnosticAnalysisResultMap <string, DiagnosticAnalysisResultBuilder> > AnalyzeAsync(
BidirectionalMap <string, DiagnosticAnalyzer> analyzerMap,
ImmutableArray <DiagnosticAnalyzer> analyzers,
OptionSet options,
bool reportSuppressedDiagnostics,
bool logAnalyzerExecutionTime,
CancellationToken cancellationToken)
{
// flag that controls concurrency
var useConcurrent = true;
// get original compilation
var compilation = await _project.GetCompilationAsync(cancellationToken).ConfigureAwait(false);
// fork compilation with concurrent build. this is okay since WithAnalyzers will fork compilation
// anyway to attach event queue. this should make compiling compilation concurrent and make things
// faster
compilation = compilation.WithOptions(compilation.Options.WithConcurrentBuild(useConcurrent));
// We need this to fork soluton, otherwise, option is cached at document.
// all this can go away once we do this - https://github.com/dotnet/roslyn/issues/19284
using (var temporaryWorksapce = new TemporaryWorkspace(_project.Solution))
{
// TODO: can we support analyzerExceptionFilter in remote host?
// right now, host doesn't support watson, we might try to use new NonFatal watson API?
var analyzerOptions = new CompilationWithAnalyzersOptions(
options: new WorkspaceAnalyzerOptions(_project.AnalyzerOptions, MergeOptions(_project.Solution.Options, options), temporaryWorksapce.CurrentSolution),
onAnalyzerException: OnAnalyzerException,
analyzerExceptionFilter: null,
concurrentAnalysis: useConcurrent,
logAnalyzerExecutionTime: logAnalyzerExecutionTime,
reportSuppressedDiagnostics: reportSuppressedDiagnostics);
var analyzerDriver = compilation.WithAnalyzers(analyzers, analyzerOptions);
// PERF: Run all analyzers at once using the new GetAnalysisResultAsync API.
var analysisResult = await analyzerDriver.GetAnalysisResultAsync(cancellationToken).ConfigureAwait(false);
// record performance if tracker is available
if (_performanceTracker != null)
{
// +1 to include project itself
_performanceTracker.AddSnapshot(analysisResult.AnalyzerTelemetryInfo.ToAnalyzerPerformanceInfo(), _project.DocumentIds.Count + 1);
}
var builderMap = analysisResult.ToResultBuilderMap(_project, VersionStamp.Default, compilation, analysisResult.Analyzers, cancellationToken);
return(DiagnosticAnalysisResultMap.Create(
builderMap.ToImmutableDictionary(kv => GetAnalyzerId(analyzerMap, kv.Key), kv => kv.Value),
analysisResult.AnalyzerTelemetryInfo.ToImmutableDictionary(kv => GetAnalyzerId(analyzerMap, kv.Key), kv => kv.Value),
_exceptions.ToImmutableDictionary(kv => GetAnalyzerId(analyzerMap, kv.Key), kv => kv.Value.ToImmutableArray())));
}
}
