private async Task <DocumentAnalysisData> GetDocumentAnalysisDataAsync(
CompilationWithAnalyzers?compilation, Document document, StateSet stateSet, AnalysisKind kind, CancellationToken cancellationToken)
{
// get log title and functionId
GetLogFunctionIdAndTitle(kind, out var functionId, out var title);
using (Logger.LogBlock(functionId, GetDocumentLogMessage, title, document, stateSet.Analyzer, cancellationToken))
{
try
{
var version = await GetDiagnosticVersionAsync(document.Project, cancellationToken).ConfigureAwait(false);
var state = stateSet.GetOrCreateActiveFileState(document.Id);
var existingData = state.GetAnalysisData(kind);
if (existingData.Version == version)
{
return(existingData);
}
// perf optimization. check whether analyzer is suppressed and avoid getting diagnostics if suppressed.
// REVIEW: IsAnalyzerSuppressed call seems can be quite expensive in certain condition. is there any other way to do this?
if (AnalyzerService.IsAnalyzerSuppressed(stateSet.Analyzer, document.Project))
{
return(new DocumentAnalysisData(version, existingData.Items, ImmutableArray <DiagnosticData> .Empty));
}
var diagnostics = await AnalyzerService.ComputeDiagnosticsAsync(compilation, document, stateSet.Analyzer, kind, span : null, DiagnosticLogAggregator, cancellationToken).ConfigureAwait(false);
// this is no-op in product. only run in test environment
Logger.Log(functionId, (t, d, a, ds) => $"{GetDocumentLogMessage(t, d, a)}, {string.Join(Environment.NewLine, ds)}",
title, document, stateSet.Analyzer, diagnostics);
// we only care about local diagnostics
return(new DocumentAnalysisData(version, existingData.Items, diagnostics.ToImmutableArrayOrEmpty()));
}
catch (Exception e) when(FatalError.ReportUnlessCanceled(e))
{
throw ExceptionUtilities.Unreachable;
}
}
}
private Task <IEnumerable <DiagnosticData> > ComputeDiagnosticsAsync(
CompilationWithAnalyzers?compilation, Document document, DiagnosticAnalyzer analyzer, AnalysisKind kind, TextSpan?spanOpt, CancellationToken cancellationToken)
{
return(AnalyzerService.ComputeDiagnosticsAsync(compilation, document, analyzer, kind, spanOpt, DiagnosticLogAggregator, cancellationToken));
}