private static async Task ClassifySpansAsync( TaggerContext <IClassificationTag> context, DocumentSnapshotSpan spanToTag, IClassificationService classificationService, ClassificationTypeMap typeMap) { try { var document = spanToTag.Document; var snapshotSpan = spanToTag.SnapshotSpan; var snapshot = snapshotSpan.Snapshot; var cancellationToken = context.CancellationToken; using (Logger.LogBlock(FunctionId.Tagger_SemanticClassification_TagProducer_ProduceTags, cancellationToken)) { var classifiedSpans = ClassificationUtilities.GetOrCreateClassifiedSpanList(); await AddSemanticClassificationsAsync( document, snapshotSpan.Span.ToTextSpan(), classificationService, classifiedSpans, cancellationToken : cancellationToken).ConfigureAwait(false); ClassificationUtilities.Convert(typeMap, snapshotSpan.Snapshot, classifiedSpans, context.AddTag); ClassificationUtilities.ReturnClassifiedSpanList(classifiedSpans); var version = await document.Project.GetDependentSemanticVersionAsync(cancellationToken).ConfigureAwait(false); // Let the context know that this was the span we actually tried to tag. context.SetSpansTagged(SpecializedCollections.SingletonEnumerable(spanToTag)); context.State = version; } } catch (Exception e) when(FatalError.ReportAndPropagateUnlessCanceled(e)) { throw ExceptionUtilities.Unreachable; } }
private static async Task ClassifySpansAsync( TaggerContext <IClassificationTag> context, DocumentSnapshotSpan spanToTag, IClassificationService classificationService, ClassificationTypeMap typeMap, ClassificationOptions options, CancellationToken cancellationToken) { try { var document = spanToTag.Document; var snapshotSpan = spanToTag.SnapshotSpan; var snapshot = snapshotSpan.Snapshot; using (Logger.LogBlock(FunctionId.Tagger_SemanticClassification_TagProducer_ProduceTags, cancellationToken)) { using var _ = ArrayBuilder <ClassifiedSpan> .GetInstance(out var classifiedSpans); await classificationService.AddSemanticClassificationsAsync( document, snapshotSpan.Span.ToTextSpan(), options, classifiedSpans, cancellationToken).ConfigureAwait(false); foreach (var span in classifiedSpans) { context.AddTag(ClassificationUtilities.Convert(typeMap, snapshotSpan.Snapshot, span)); } var version = await document.Project.GetDependentSemanticVersionAsync(cancellationToken).ConfigureAwait(false); // Let the context know that this was the span we actually tried to tag. context.SetSpansTagged(SpecializedCollections.SingletonEnumerable(spanToTag)); context.State = version; } } catch (Exception e) when(FatalError.ReportAndPropagateUnlessCanceled(e, cancellationToken)) { throw ExceptionUtilities.Unreachable; } }