public override async Task <LSP.SemanticTokens> HandleRequestAsync(
LSP.SemanticTokensRangeParams request,
RequestContext context,
CancellationToken cancellationToken)
{
Contract.ThrowIfNull(request.TextDocument, "TextDocument is null.");
Contract.ThrowIfNull(context.Document, "Document is null.");
var options = _globalOptions.GetClassificationOptions(context.Document.Project.Language);
// The results from the range handler should not be cached since we don't want to cache
// partial token results. In addition, a range request is only ever called with a whole
// document request, so caching range results is unnecessary since the whole document
// handler will cache the results anyway.
var(tokensData, isFinalized) = await SemanticTokensHelpers.ComputeSemanticTokensDataAsync(
context.Document,
SemanticTokensHelpers.TokenTypeToIndex,
request.Range,
options,
includeSyntacticClassifications : context.Document.IsRazorDocument(),
cancellationToken).ConfigureAwait(false);
return(new RoslynSemanticTokens {
Data = tokensData, IsFinalized = isFinalized
});
}
public async Task <IntellisenseQuickInfoItem> GetQuickInfoItemAsync(IAsyncQuickInfoSession session, CancellationToken cancellationToken)
{
var triggerPoint = session.GetTriggerPoint(_subjectBuffer.CurrentSnapshot);
if (!triggerPoint.HasValue)
{
return(null);
}
var snapshot = triggerPoint.Value.Snapshot;
var document = snapshot.GetOpenDocumentInCurrentContextWithChanges();
if (document == null)
{
return(null);
}
var service = QuickInfoService.GetService(document);
if (service == null)
{
return(null);
}
try
{
using (Logger.LogBlock(FunctionId.Get_QuickInfo_Async, cancellationToken))
{
cancellationToken.ThrowIfCancellationRequested();
var options = _globalOptions.GetSymbolDescriptionOptions(document.Project.Language);
var item = await service.GetQuickInfoAsync(document, triggerPoint.Value, options, cancellationToken).ConfigureAwait(false);
if (item != null)
{
var textVersion = snapshot.Version;
var trackingSpan = textVersion.CreateTrackingSpan(item.Span.ToSpan(), SpanTrackingMode.EdgeInclusive);
var classificationOptions = _globalOptions.GetClassificationOptions(document.Project.Language);
return(await IntellisenseQuickInfoBuilder.BuildItemAsync(
trackingSpan, item, document, classificationOptions,
_threadingContext, _operationExecutor,
_asyncListener, _streamingPresenter, cancellationToken).ConfigureAwait(false));
}
return(null);
}
}
catch (Exception e) when(FatalError.ReportAndPropagateUnlessCanceled(e, cancellationToken, ErrorSeverity.Critical))
{
throw ExceptionUtilities.Unreachable;
}
}
protected sealed override Task ProduceTagsAsync(
TaggerContext <IClassificationTag> context, CancellationToken cancellationToken)
{
Debug.Assert(context.SpansToTag.IsSingle());
var spanToTag = context.SpansToTag.Single();
var document = spanToTag.Document;
if (document == null)
{
return(Task.CompletedTask);
}
// Attempt to get a classification service which will actually produce the results.
// If we can't (because we have no Document, or because the language doesn't support
// this service), then bail out immediately.
var classificationService = document.GetLanguageService <IClassificationService>();
if (classificationService == null)
{
return(Task.CompletedTask);
}
// The LSP client will handle producing tags when running under the LSP editor.
// Our tagger implementation should return nothing to prevent conflicts.
var workspaceContextService = document.Project.Solution.Services.GetRequiredService <IWorkspaceContextService>();
if (workspaceContextService?.IsInLspEditorContext() == true)
{
return(Task.CompletedTask);
}
// If the LSP semantic tokens feature flag is enabled, return nothing to prevent conflicts.
var isLspSemanticTokensEnabled = _globalOptions.GetOption(LspOptions.LspSemanticTokensFeatureFlag);
if (isLspSemanticTokensEnabled)
{
return(Task.CompletedTask);
}
var classificationOptions = _globalOptions.GetClassificationOptions(document.Project.Language);
return(ClassificationUtilities.ProduceTagsAsync(
context, spanToTag, classificationService, _typeMap, classificationOptions, _type, cancellationToken));
}
public async Task <Hover?> HandleRequestAsync(TextDocumentPositionParams request, RequestContext context, CancellationToken cancellationToken)
{
var document = context.Document;
Contract.ThrowIfNull(document);
var position = await document.GetPositionFromLinePositionAsync(ProtocolConversions.PositionToLinePosition(request.Position), cancellationToken).ConfigureAwait(false);
var quickInfoService = document.Project.LanguageServices.GetRequiredService <QuickInfoService>();
var options = _globalOptions.GetSymbolDescriptionOptions(document.Project.Language);
var info = await quickInfoService.GetQuickInfoAsync(document, position, options, cancellationToken).ConfigureAwait(false);
if (info == null)
{
return(null);
}
var classificationOptions = _globalOptions.GetClassificationOptions(document.Project.Language);
var text = await document.GetTextAsync(cancellationToken).ConfigureAwait(false);
return(await GetHoverAsync(info, text, document.Project.Language, document, classificationOptions, context.ClientCapabilities, cancellationToken).ConfigureAwait(false));
}
private async Task <ImmutableArray <ReferenceLocationDescriptor> > FixUpDescriptorsAsync(
Solution solution, ImmutableArray <ReferenceLocationDescriptor> descriptors, CancellationToken cancellationToken)
{
using var _ = ArrayBuilder <ReferenceLocationDescriptor> .GetInstance(out var list);
foreach (var descriptor in descriptors)
{
var referencedDocumentId = DocumentId.CreateFromSerialized(
ProjectId.CreateFromSerialized(descriptor.ProjectGuid), descriptor.DocumentGuid);
var document = await solution.GetDocumentAsync(referencedDocumentId, includeSourceGenerated : true, cancellationToken).ConfigureAwait(false);
if (document == null)
{
continue;
}
var spanMapper = document.Services.GetService <ISpanMappingService>();
if (spanMapper == null)
{
// for normal document, just add one as they are
list.Add(descriptor);
continue;
}
var span = new TextSpan(descriptor.SpanStart, descriptor.SpanLength);
var results = await spanMapper.MapSpansAsync(document, SpecializedCollections.SingletonEnumerable(span), cancellationToken).ConfigureAwait(false);
// external component violated contracts. the mapper should preserve input order/count.
// since we gave in 1 span, it should return 1 span back
Contract.ThrowIfTrue(results.IsDefaultOrEmpty);
var result = results[0];
if (result.IsDefault)
{
// it is allowed for mapper to return default
// if it can't map the given span to any usable span
continue;
}
var excerpter = document.Services.GetService <IDocumentExcerptService>();
if (excerpter == null)
{
continue;
}
var classificationOptions = _globalOptions.GetClassificationOptions(document.Project.Language);
var referenceExcerpt = await excerpter.TryExcerptAsync(document, span, ExcerptMode.SingleLine, classificationOptions, cancellationToken).ConfigureAwait(false);
var tooltipExcerpt = await excerpter.TryExcerptAsync(document, span, ExcerptMode.Tooltip, classificationOptions, cancellationToken).ConfigureAwait(false);
var(text, start, length) = GetReferenceInfo(referenceExcerpt, descriptor);
var(before1, before2, after1, after2) = GetReferenceTexts(referenceExcerpt, tooltipExcerpt, descriptor);
list.Add(new ReferenceLocationDescriptor(
descriptor.LongDescription,
descriptor.Language,
descriptor.Glyph,
result.Span.Start,
result.Span.Length,
result.LinePositionSpan.Start.Line,
result.LinePositionSpan.Start.Character,
descriptor.ProjectGuid,
descriptor.DocumentGuid,
result.FilePath,
text,
start,
length,
before1,
before2,
after1,
after2));
}
return(list.ToImmutable());
}