public async Task <Hover?> HandleRequestAsync(TextDocumentPositionParams request, RequestContext context, CancellationToken cancellationToken)
{
var document = context.Document;
if (document == null)
{
return(null);
}
var position = await document.GetPositionFromLinePositionAsync(ProtocolConversions.PositionToLinePosition(request.Position), cancellationToken).ConfigureAwait(false);
var quickInfoService = document.Project.LanguageServices.GetService <IXamlQuickInfoService>();
if (quickInfoService == null)
{
return(null);
}
var info = await quickInfoService.GetQuickInfoAsync(document, position, cancellationToken).ConfigureAwait(false);
if (info == null)
{
return(null);
}
var descriptionBuilder = new List <TaggedText>(info.Description);
if (info.Symbol != null)
{
var options = _globalOptions.GetSymbolDescriptionOptions(document.Project.Language);
var description = await info.Symbol.GetDescriptionAsync(document, options, cancellationToken).ConfigureAwait(false);
if (description.Any())
{
if (descriptionBuilder.Any())
{
descriptionBuilder.AddLineBreak();
}
descriptionBuilder.AddRange(description);
}
}
var text = await document.GetTextAsync(cancellationToken).ConfigureAwait(false);
return(new VSInternalHover
{
Range = ProtocolConversions.TextSpanToRange(info.Span, text),
Contents = new MarkupContent
{
Kind = MarkupKind.Markdown,
Value = GetMarkdownString(descriptionBuilder)
},
RawContent = new ClassifiedTextElement(descriptionBuilder.Select(tp => new ClassifiedTextRun(tp.Tag.ToClassificationTypeName(), tp.Text)))
});
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;
}
}
public async Task <LSP.CompletionItem> HandleRequestAsync(LSP.CompletionItem completionItem, RequestContext context, CancellationToken cancellationToken)
{
Contract.ThrowIfNull(context.Solution);
if (completionItem is not VSInternalCompletionItem vsCompletionItem)
{
return(completionItem);
}
CompletionResolveData?data;
if (completionItem.Data is JToken token)
{
data = token.ToObject <CompletionResolveData>();
Assumes.Present(data);
}
else
{
return(completionItem);
}
var documentId = DocumentId.CreateFromSerialized(ProjectId.CreateFromSerialized(data.ProjectGuid), data.DocumentGuid);
var document = context.Solution.GetDocument(documentId) ?? context.Solution.GetAdditionalDocument(documentId);
if (document == null)
{
return(completionItem);
}
var offset = await document.GetPositionFromLinePositionAsync(ProtocolConversions.PositionToLinePosition(data.Position), cancellationToken).ConfigureAwait(false);
var completionService = document.Project.LanguageServices.GetRequiredService <IXamlCompletionService>();
var symbol = await completionService.GetSymbolAsync(new XamlCompletionContext(document, offset), completionItem.Label, cancellationToken : cancellationToken).ConfigureAwait(false);
if (symbol == null)
{
return(completionItem);
}
var options = _globalOptions.GetSymbolDescriptionOptions(document.Project.Language);
var description = await symbol.GetDescriptionAsync(document, options, cancellationToken).ConfigureAwait(false);
vsCompletionItem.Description = new ClassifiedTextElement(description.Select(tp => new ClassifiedTextRun(tp.Tag.ToClassificationTypeName(), tp.Text)));
return(vsCompletionItem);
}
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));
}
public async Task <LSP.CompletionItem> HandleRequestAsync(LSP.CompletionItem completionItem, RequestContext context, CancellationToken cancellationToken)
{
var document = context.Document;
Contract.ThrowIfNull(document);
var completionService = document.Project.LanguageServices.GetRequiredService <CompletionService>();
var cacheEntry = GetCompletionListCacheEntry(completionItem);
if (cacheEntry == null)
{
// Don't have a cache associated with this completion item, cannot resolve.
context.TraceInformation("No cache entry found for the provided completion item at resolve time.");
return(completionItem);
}
var list = cacheEntry.CompletionList;
// Find the matching completion item in the completion list
var selectedItem = list.Items.FirstOrDefault(cachedCompletionItem => MatchesLSPCompletionItem(completionItem, cachedCompletionItem));
if (selectedItem == null)
{
return(completionItem);
}
var completionOptions = _globalOptions.GetCompletionOptions(document.Project.Language);
var displayOptions = _globalOptions.GetSymbolDescriptionOptions(document.Project.Language);
var description = await completionService.GetDescriptionAsync(document, selectedItem, completionOptions, displayOptions, cancellationToken).ConfigureAwait(false) !;
if (description != null)
{
var supportsVSExtensions = context.ClientCapabilities.HasVisualStudioLspCapability();
if (supportsVSExtensions)
{
var vsCompletionItem = (LSP.VSInternalCompletionItem)completionItem;
vsCompletionItem.Description = new ClassifiedTextElement(description.TaggedParts
.Select(tp => new ClassifiedTextRun(tp.Tag.ToClassificationTypeName(), tp.Text)));
}
else
{
var clientSupportsMarkdown = context.ClientCapabilities.TextDocument?.Completion?.CompletionItem?.DocumentationFormat.Contains(LSP.MarkupKind.Markdown) == true;
completionItem.Documentation = ProtocolConversions.GetDocumentationMarkupContent(description.TaggedParts, document, clientSupportsMarkdown);
}
}
// We compute the TextEdit resolves for complex text edits (e.g. override and partial
// method completions) here. Lazily resolving TextEdits is technically a violation of
// the LSP spec, but is currently supported by the VS client anyway. Once the VS client
// adheres to the spec, this logic will need to change and VS will need to provide
// official support for TextEdit resolution in some form.
if (selectedItem.IsComplexTextEdit)
{
Contract.ThrowIfTrue(completionItem.InsertText != null);
Contract.ThrowIfTrue(completionItem.TextEdit != null);
var snippetsSupported = context.ClientCapabilities.TextDocument?.Completion?.CompletionItem?.SnippetSupport ?? false;
completionItem.TextEdit = await GenerateTextEditAsync(
document, completionService, selectedItem, snippetsSupported, cancellationToken).ConfigureAwait(false);
}
return(completionItem);
}