private async TPL.Task <ImmutableArray <DefinitionItem> > GetDefinitionItemsAsync(Document document, int position, CancellationToken cancellationToken)
{
var lspClient = _roslynLspClientServiceFactory.ActiveLanguageServerClient;
if (lspClient == null)
{
return(ImmutableArray <DefinitionItem> .Empty);
}
var text = await document.GetTextAsync(cancellationToken).ConfigureAwait(false);
var textDocumentPositionParams = ProtocolConversions.PositionToTextDocumentPositionParams(position, text, document);
var response = await lspClient.RequestAsync(LSP.Methods.TextDocumentDefinition.ToLSRequest(), textDocumentPositionParams, cancellationToken).ConfigureAwait(false);
var locations = ((JToken)response)?.ToObject <LSP.Location[]>();
if (locations == null)
{
return(ImmutableArray <DefinitionItem> .Empty);
}
var definitionItems = ImmutableArray.CreateBuilder <DefinitionItem>();
foreach (var location in locations)
{
DocumentSpan?documentSpan;
if (lspClient.ProtocolConverter.IsExternalDocument(location.Uri))
{
var externalDocument = _remoteWorkspace.GetOrAddExternalDocument(location.Uri.LocalPath, document.Project.Language);
var externalText = await externalDocument.GetTextAsync(cancellationToken).ConfigureAwait(false);
var textSpan = ProtocolConversions.RangeToTextSpan(location.Range, externalText);
documentSpan = new DocumentSpan(externalDocument, textSpan);
}
else
{
documentSpan = await _remoteWorkspace.GetDocumentSpanFromLocation(location, cancellationToken).ConfigureAwait(false);
if (documentSpan == null)
{
continue;
}
}
definitionItems.Add(DefinitionItem.Create(ImmutableArray <string> .Empty, ImmutableArray <TaggedText> .Empty, documentSpan.Value));
}
return(definitionItems.ToImmutable());
}
public async Task FindImplementationsAsync(Document document, int position, IFindUsagesContext context)
{
var text = await document.GetTextAsync().ConfigureAwait(false);
var lspClient = _roslynLspClientServiceFactory.ActiveLanguageServerClient;
if (lspClient == null)
{
return;
}
var documentPositionParams = ProtocolConversions.PositionToTextDocumentPositionParams(position, text, document);
var response = await lspClient.RequestAsync(LiveShareProtocol.Methods.TextDocumentImplementations, documentPositionParams, context.CancellationToken).ConfigureAwait(false);
var locations = ((JToken)response)?.ToObject <LSP.Location[]>();
if (locations == null)
{
return;
}
foreach (var location in locations)
{
var documentSpan = await _remoteLanguageServiceWorkspace.GetDocumentSpanFromLocation(location, context.CancellationToken).ConfigureAwait(false);
if (documentSpan == null)
{
continue;
}
// Get the text for the line containing the definition to show in the UI.
var docText = await documentSpan.Value.Document.GetTextAsync(context.CancellationToken).ConfigureAwait(false);
var lineText = docText.GetSubText(docText.Lines[location.Range.Start.Line].Span).ToString();
await context.OnDefinitionFoundAsync(DefinitionItem.Create(ImmutableArray <string> .Empty,
ImmutableArray.Create(new TaggedText(TextTags.Text, lineText)), documentSpan.Value)).ConfigureAwait(false);
}
}
public async Task <SignatureHelpItems> GetItemsAsync(Document document, int position, SignatureHelpTriggerInfo triggerInfo, CancellationToken cancellationToken)
{
// This provider is exported for all workspaces - so limit it to just our workspace.
if (document.Project.Solution.Workspace.Kind != WorkspaceKind.AnyCodeRoslynWorkspace)
{
return(null);
}
var lspClient = _roslynLspClientServiceFactory.ActiveLanguageServerClient;
if (lspClient == null)
{
return(null);
}
var text = await document.GetTextAsync(cancellationToken).ConfigureAwait(false);
var textDocumentPositionParams = ProtocolConversions.PositionToTextDocumentPositionParams(position, text, document);
var signatureHelp = await lspClient.RequestAsync(Methods.TextDocumentSignatureHelp.ToLSRequest(), textDocumentPositionParams, cancellationToken).ConfigureAwait(false);
if (signatureHelp == null || signatureHelp.Signatures == null || signatureHelp.Signatures.Length <= 0)
{
return(null);
}
var items = new List <SignatureHelpItem>();
foreach (var signature in signatureHelp.Signatures)
{
items.Add(CreateSignatureHelpItem(signature));
}
var linePosition = text.Lines.GetLinePosition(position);
var applicableSpan = text.Lines.GetTextSpan(new CodeAnalysis.Text.LinePositionSpan(linePosition, linePosition));
return(new SignatureHelpItems(items, applicableSpan, signatureHelp.ActiveParameter, signatureHelp.ActiveParameter, null, signatureHelp.ActiveSignature));
}
public async Task <ImmutableArray <DocumentHighlights> > GetDocumentHighlightsAsync(Document document, int position, IImmutableSet <Document> documentsToSearch, CancellationToken cancellationToken)
{
var lspClient = _roslynLspClientServiceFactory.ActiveLanguageServerClient;
if (lspClient == null)
{
return(ImmutableArray <DocumentHighlights> .Empty);
}
var text = await document.GetTextAsync().ConfigureAwait(false);
var textDocumentPositionParams = ProtocolConversions.PositionToTextDocumentPositionParams(position, text, document);
var highlights = await lspClient.RequestAsync(Methods.TextDocumentDocumentHighlight.ToLSRequest(), textDocumentPositionParams, cancellationToken).ConfigureAwait(false);
if (highlights == null)
{
return(ImmutableArray <DocumentHighlights> .Empty);
}
var highlightSpans = highlights.Select(highlight => new HighlightSpan(ProtocolConversions.RangeToTextSpan(highlight.Range, text), ToHighlightSpanKind(highlight.Kind)));
return(ImmutableArray.Create(new DocumentHighlights(document, highlightSpans.ToImmutableArray())));
}
