private async Task <ImmutableArray <DiagnosticData> > GetProjectDiagnosticsAsync(Project project, CancellationToken cancellationToken)
{
if (project == null)
{
return(ImmutableArray <DiagnosticData> .Empty);
}
var compilation = await project.GetCompilationAsync(cancellationToken).ConfigureAwait(false);
var analyzers = _analyzerManager.CreateDiagnosticAnalyzers(project);
var compilationWithAnalyzer = compilation.WithAnalyzers(analyzers, project.AnalyzerOptions, cancellationToken);
// REVIEW: this API is a bit strange.
// if getting diagnostic is cancelled, it has to create new compilation and do everything from scretch again?
return(GetDiagnosticData(project, await compilationWithAnalyzer.GetAnalyzerDiagnosticsAsync().ConfigureAwait(false)).ToImmutableArrayOrEmpty());
}
