public async Task <SignatureHelp> HandleRequestAsync(TextDocumentPositionParams request, ClientCapabilities clientCapabilities, CancellationToken cancellationToken)
{
if (request is null)
{
throw new ArgumentNullException(nameof(request));
}
if (clientCapabilities is null)
{
throw new ArgumentNullException(nameof(clientCapabilities));
}
_logger.LogInformation($"Starting request for {request.TextDocument.Uri}.");
if (!_documentManager.TryGetDocument(request.TextDocument.Uri, out var documentSnapshot))
{
_logger.LogWarning($"Failed to find document {request.TextDocument.Uri}.");
return(null);
}
var projectionResult = await _projectionProvider.GetProjectionAsync(
documentSnapshot,
request.Position,
cancellationToken).ConfigureAwait(false);
if (projectionResult == null)
{
return(null);
}
cancellationToken.ThrowIfCancellationRequested();
var textDocumentPositionParams = new TextDocumentPositionParams()
{
Position = projectionResult.Position,
TextDocument = new TextDocumentIdentifier()
{
Uri = projectionResult.Uri
},
};
_logger.LogInformation($"Requesting signature help for {projectionResult.Uri}.");
var signatureHelp = await _requestInvoker.ReinvokeRequestOnServerAsync <TextDocumentPositionParams, SignatureHelp>(
Methods.TextDocumentSignatureHelpName,
projectionResult.LanguageKind.ToContainedLanguageContentType(),
textDocumentPositionParams,
cancellationToken).ConfigureAwait(false);
if (signatureHelp is null)
{
_logger.LogInformation("Returning no result.");
}
else
{
_logger.LogInformation("Returning result.");
}
return(signatureHelp);
}
public async Task <DocumentOnTypeRenameResponseItem> HandleRequestAsync(DocumentOnTypeRenameParams request, ClientCapabilities clientCapabilities, CancellationToken cancellationToken)
{
if (request is null)
{
throw new ArgumentNullException(nameof(request));
}
cancellationToken.ThrowIfCancellationRequested();
if (!_documentManager.TryGetDocument(request.TextDocument.Uri, out var documentSnapshot))
{
return(null);
}
var projectionResult = await _projectionProvider.GetProjectionAsync(documentSnapshot, request.Position, cancellationToken).ConfigureAwait(false);
if (projectionResult is null || projectionResult.LanguageKind != RazorLanguageKind.Html)
{
return(null);
}
var onTypeRenameParams = new DocumentOnTypeRenameParams()
{
Position = projectionResult.Position,
TextDocument = new TextDocumentIdentifier()
{
Uri = projectionResult.Uri
}
};
var contentType = projectionResult.LanguageKind.ToContainedLanguageContentType();
var response = await _requestInvoker.ReinvokeRequestOnServerAsync <DocumentOnTypeRenameParams, DocumentOnTypeRenameResponseItem>(
MSLSPMethods.OnTypeRenameName,
contentType,
onTypeRenameParams,
cancellationToken).ConfigureAwait(false);
if (response is null)
{
return(null);
}
var mappingResult = await _documentMappingProvider.MapToDocumentRangesAsync(
projectionResult.LanguageKind,
request.TextDocument.Uri,
response.Ranges,
cancellationToken).ConfigureAwait(false);
if (mappingResult is null ||
(_documentManager.TryGetDocument(request.TextDocument.Uri, out var mappedDocumentSnapshot) &&
mappingResult.HostDocumentVersion != mappedDocumentSnapshot.Version))
{
// Couldn't remap the range or the document changed in the meantime. Discard this result.
return(null);
}
response.Ranges = mappingResult.Ranges;
return(response);
}
public async Task <DocumentOnAutoInsertResponseItem> HandleRequestAsync(DocumentOnAutoInsertParams request, ClientCapabilities clientCapabilities, CancellationToken cancellationToken)
{
if (!AllowedTriggerCharacters.Contains(request.Character, StringComparer.Ordinal))
{
// We haven't built support for this character yet.
return(null);
}
if (!_documentManager.TryGetDocument(request.TextDocument.Uri, out var documentSnapshot))
{
return(null);
}
var projectionResult = await _projectionProvider.GetProjectionAsync(documentSnapshot, request.Position, cancellationToken).ConfigureAwait(false);
if (projectionResult == null || projectionResult.LanguageKind != RazorLanguageKind.Html)
{
return(null);
}
var formattingParams = new DocumentOnAutoInsertParams()
{
Character = request.Character,
Options = request.Options,
Position = projectionResult.Position,
TextDocument = new TextDocumentIdentifier()
{
Uri = projectionResult.Uri
}
};
var contentType = projectionResult.LanguageKind.ToContainedLanguageContentType();
var response = await _requestInvoker.ReinvokeRequestOnServerAsync <DocumentOnAutoInsertParams, DocumentOnAutoInsertResponseItem>(
MSLSPMethods.OnAutoInsertName,
contentType,
formattingParams,
cancellationToken).ConfigureAwait(false);
if (response == null)
{
return(null);
}
var remappedEdit = await _documentMappingProvider.RemapTextEditsAsync(projectionResult.Uri, new[] { response.TextEdit }, cancellationToken).ConfigureAwait(false);
if (!remappedEdit.Any())
{
return(null);
}
var remappedResponse = new DocumentOnAutoInsertResponseItem()
{
TextEdit = remappedEdit.Single(),
TextEditFormat = response.TextEditFormat,
};
return(remappedResponse);
}
public async Task <WorkspaceEdit> HandleRequestAsync(RenameParams request, ClientCapabilities clientCapabilities, CancellationToken cancellationToken)
{
if (request is null)
{
throw new ArgumentNullException(nameof(request));
}
if (clientCapabilities is null)
{
throw new ArgumentNullException(nameof(clientCapabilities));
}
if (!_documentManager.TryGetDocument(request.TextDocument.Uri, out var documentSnapshot))
{
return(null);
}
var projectionResult = await _projectionProvider.GetProjectionAsync(documentSnapshot, request.Position, cancellationToken).ConfigureAwait(false);
if (projectionResult == null)
{
// We only support C# renames for now.
return(null);
}
cancellationToken.ThrowIfCancellationRequested();
var renameParams = new RenameParams()
{
Position = projectionResult.Position,
NewName = request.NewName,
TextDocument = new TextDocumentIdentifier()
{
Uri = projectionResult.Uri
}
};
var result = await _requestInvoker.ReinvokeRequestOnServerAsync <RenameParams, WorkspaceEdit>(
Methods.TextDocumentRenameName,
projectionResult.LanguageKind.ToContainedLanguageContentType(),
renameParams,
cancellationToken).ConfigureAwait(false);
if (result == null)
{
return(null);
}
cancellationToken.ThrowIfCancellationRequested();
var remappedResult = await _documentMappingProvider.RemapWorkspaceEditAsync(result, cancellationToken).ConfigureAwait(false);
return(remappedResult);
}
public async Task <Location[]> HandleRequestAsync(TextDocumentPositionParams request, ClientCapabilities clientCapabilities, CancellationToken cancellationToken)
{
if (request is null)
{
throw new ArgumentNullException(nameof(request));
}
if (clientCapabilities is null)
{
throw new ArgumentNullException(nameof(clientCapabilities));
}
if (!_documentManager.TryGetDocument(request.TextDocument.Uri, out var documentSnapshot))
{
return(null);
}
var projectionResult = await _projectionProvider.GetProjectionAsync(documentSnapshot, request.Position, cancellationToken).ConfigureAwait(false);
if (projectionResult == null || projectionResult.LanguageKind != RazorLanguageKind.CSharp)
{
return(null);
}
cancellationToken.ThrowIfCancellationRequested();
var serverKind = LanguageServerKind.CSharp;
var textDocumentPositionParams = new TextDocumentPositionParams()
{
Position = projectionResult.Position,
TextDocument = new TextDocumentIdentifier()
{
Uri = projectionResult.Uri
}
};
var result = await _requestInvoker.ReinvokeRequestOnServerAsync <TextDocumentPositionParams, Location[]>(
Methods.TextDocumentImplementationName,
serverKind,
textDocumentPositionParams,
cancellationToken).ConfigureAwait(false);
if (result == null || result.Length == 0)
{
return(result);
}
cancellationToken.ThrowIfCancellationRequested();
var remappedLocations = await _documentMappingProvider.RemapLocationsAsync(result, cancellationToken).ConfigureAwait(false);
return(remappedLocations);
}
public async Task <SignatureHelp> HandleRequestAsync(TextDocumentPositionParams request, ClientCapabilities clientCapabilities, CancellationToken cancellationToken)
{
if (request is null)
{
throw new ArgumentNullException(nameof(request));
}
if (clientCapabilities is null)
{
throw new ArgumentNullException(nameof(clientCapabilities));
}
if (!_documentManager.TryGetDocument(request.TextDocument.Uri, out var documentSnapshot))
{
return(null);
}
var projectionResult = await _projectionProvider.GetProjectionAsync(documentSnapshot, request.Position, cancellationToken).ConfigureAwait(false);
if (projectionResult == null || projectionResult.LanguageKind != RazorLanguageKind.CSharp)
{
return(null);
}
cancellationToken.ThrowIfCancellationRequested();
var textDocumentPositionParams = new TextDocumentPositionParams()
{
Position = projectionResult.Position,
TextDocument = new TextDocumentIdentifier()
{
Uri = projectionResult.Uri
},
};
var signatureHelp = await _requestInvoker.ReinvokeRequestOnServerAsync <TextDocumentPositionParams, SignatureHelp>(
Methods.TextDocumentSignatureHelpName,
RazorLSPConstants.CSharpContentTypeName,
textDocumentPositionParams,
cancellationToken).ConfigureAwait(false);
return(signatureHelp);
}
public async Task <DocumentOnTypeRenameResponseItem> HandleRequestAsync(DocumentOnTypeRenameParams request, ClientCapabilities clientCapabilities, CancellationToken cancellationToken)
{
if (request is null)
{
throw new ArgumentNullException(nameof(request));
}
cancellationToken.ThrowIfCancellationRequested();
_logger.LogInformation($"Starting request for {request.TextDocument.Uri}.");
if (!_documentManager.TryGetDocument(request.TextDocument.Uri, out var documentSnapshot))
{
_logger.LogWarning($"Failed to find document {request.TextDocument.Uri}.");
return(null);
}
var projectionResult = await _projectionProvider.GetProjectionAsync(
documentSnapshot,
request.Position,
cancellationToken).ConfigureAwait(false);
if (projectionResult is null)
{
return(null);
}
else if (projectionResult.LanguageKind != RazorLanguageKind.Html)
{
_logger.LogInformation($"Unsupported language kind {projectionResult.LanguageKind:G}.");
return(null);
}
var onTypeRenameParams = new DocumentOnTypeRenameParams()
{
Position = projectionResult.Position,
TextDocument = new TextDocumentIdentifier()
{
Uri = projectionResult.Uri
}
};
_logger.LogInformation($"Requesting OnTypeRename for {projectionResult.Uri}.");
var contentType = projectionResult.LanguageKind.ToContainedLanguageContentType();
var response = await _requestInvoker.ReinvokeRequestOnServerAsync <DocumentOnTypeRenameParams, DocumentOnTypeRenameResponseItem>(
MSLSPMethods.OnTypeRenameName,
contentType,
onTypeRenameParams,
cancellationToken).ConfigureAwait(false);
if (response is null)
{
_logger.LogInformation("Received no results.");
return(null);
}
_logger.LogInformation($"Received response, remapping.");
var mappingResult = await _documentMappingProvider.MapToDocumentRangesAsync(
projectionResult.LanguageKind,
request.TextDocument.Uri,
response.Ranges,
cancellationToken).ConfigureAwait(false);
if (mappingResult is null ||
(_documentManager.TryGetDocument(request.TextDocument.Uri, out var mappedDocumentSnapshot) &&
mappingResult.HostDocumentVersion != mappedDocumentSnapshot.Version))
{
// Couldn't remap the range or the document changed in the meantime. Discard this result.
_logger.LogInformation($"Mapping failed. Versions: {documentSnapshot.Version} -> {mappingResult?.HostDocumentVersion}.");
return(null);
}
response.Ranges = mappingResult.Ranges;
_logger.LogInformation("Returned remapped result.");
return(response);
}
public async Task <Hover> HandleRequestAsync(TextDocumentPositionParams request, ClientCapabilities clientCapabilities, CancellationToken cancellationToken)
{
await _joinableTaskFactory.SwitchToMainThreadAsync(cancellationToken);
if (!_documentManager.TryGetDocument(request.TextDocument.Uri, out var documentSnapshot))
{
return(null);
}
// Switch to a background thread.
await TaskScheduler.Default;
var projectionResult = await _projectionProvider.GetProjectionAsync(documentSnapshot, request.Position, cancellationToken).ConfigureAwait(false);
if (projectionResult == null)
{
return(null);
}
var serverKind = projectionResult.LanguageKind == RazorLanguageKind.CSharp ? LanguageServerKind.CSharp : LanguageServerKind.Html;
var textDocumentPositionParams = new TextDocumentPositionParams()
{
Position = projectionResult.Position,
TextDocument = new TextDocumentIdentifier()
{
Uri = projectionResult.Uri
}
};
Hover result;
try
{
result = await _requestInvoker.RequestServerAsync <TextDocumentPositionParams, Hover>(
Methods.TextDocumentHoverName,
serverKind,
textDocumentPositionParams,
cancellationToken).ConfigureAwait(false);
}
catch
{
// Ensure we fail silently (Temporary till roslyn update is live)
return(null);
}
if (result?.Range == null || result?.Contents == null)
{
return(null);
}
var mappingResult = await _documentMappingProvider.MapToDocumentRangeAsync(projectionResult.LanguageKind, request.TextDocument.Uri, result.Range, cancellationToken).ConfigureAwait(false);
if (mappingResult == null)
{
// Couldn't remap the edits properly. Returning hover at initial request position.
return(new Hover
{
Contents = result.Contents,
Range = new Range()
{
Start = request.Position,
End = request.Position
}
});
}
else if (mappingResult.HostDocumentVersion != documentSnapshot.Version)
{
// Discard hover if document has changed.
return(null);
}
return(new Hover
{
Contents = result.Contents,
Range = mappingResult.Range
});
}
public async Task <SumType <CompletionItem[], CompletionList>?> HandleRequestAsync(CompletionParams request, ClientCapabilities clientCapabilities, CancellationToken cancellationToken)
{
if (request is null)
{
throw new ArgumentNullException(nameof(request));
}
if (clientCapabilities is null)
{
throw new ArgumentNullException(nameof(clientCapabilities));
}
if (!_documentManager.TryGetDocument(request.TextDocument.Uri, out var documentSnapshot))
{
return(null);
}
var projectionResult = await _projectionProvider.GetProjectionAsync(documentSnapshot, request.Position, cancellationToken).ConfigureAwait(false);
if (projectionResult == null)
{
return(null);
}
var serverKind = projectionResult.LanguageKind == RazorLanguageKind.CSharp ? LanguageServerKind.CSharp : LanguageServerKind.Html;
var(succeeded, result) = await TryGetProvisionalCompletionsAsync(request, documentSnapshot, projectionResult, cancellationToken).ConfigureAwait(false);
if (succeeded)
{
// This means the user has just typed a dot after some identifier such as (cursor is pipe): "DateTime.| "
// In this case Razor interprets after the dot as Html and before it as C#.
// We use this criteria to provide a better completion experience for what we call provisional changes.
}
else if (!TriggerAppliesToProjection(request.Context, projectionResult.LanguageKind))
{
return(null);
}
else
{
var completionContext = RewriteContext(request.Context, projectionResult.LanguageKind);
// This is a valid non-provisional completion request.
var completionParams = new CompletionParams()
{
Context = completionContext,
Position = projectionResult.Position,
TextDocument = new TextDocumentIdentifier()
{
Uri = projectionResult.Uri
}
};
result = await _requestInvoker.ReinvokeRequestOnServerAsync <CompletionParams, SumType <CompletionItem[], CompletionList>?>(
Methods.TextDocumentCompletionName,
serverKind.ToContentType(),
completionParams,
cancellationToken).ConfigureAwait(false);
}
if (TryConvertToCompletionList(result, out var completionList))
{
var wordExtent = documentSnapshot.Snapshot.GetWordExtent(request.Position.Line, request.Position.Character, _textStructureNavigator);
if (serverKind == LanguageServerKind.CSharp)
{
completionList = PostProcessCSharpCompletionList(request, documentSnapshot, wordExtent, completionList);
}
completionList = TranslateTextEdits(request.Position, projectionResult.Position, wordExtent, completionList);
var requestContext = new CompletionRequestContext(documentSnapshot.Uri, projectionResult.Uri, serverKind);
var resultId = _completionRequestContextCache.Set(requestContext);
SetResolveData(resultId, completionList);
}
return(completionList);
public async Task <TextEdit[]> HandleRequestAsync(DocumentOnTypeFormattingParams request, ClientCapabilities clientCapabilities, CancellationToken cancellationToken)
{
if (!AllTriggerCharacters.Contains(request.Character, StringComparer.Ordinal))
{
// Unexpected trigger character.
return(null);
}
if (!_documentManager.TryGetDocument(request.TextDocument.Uri, out var documentSnapshot))
{
return(null);
}
var triggerCharacterKind = await GetTriggerCharacterLanguageKindAsync(documentSnapshot, request.Position, request.Character, cancellationToken).ConfigureAwait(false);
if (triggerCharacterKind == null || triggerCharacterKind != RazorLanguageKind.CSharp)
{
return(null);
}
if (!IsApplicableTriggerCharacter(request.Character, triggerCharacterKind.Value))
{
// We were triggered but the trigger character doesn't make sense for the current cursor position. Bail.
return(null);
}
cancellationToken.ThrowIfCancellationRequested();
var projectionResult = await _projectionProvider.GetProjectionAsync(documentSnapshot, request.Position, cancellationToken).ConfigureAwait(false);
if (projectionResult == null)
{
return(null);
}
var formattingParams = new DocumentOnTypeFormattingParams()
{
Character = request.Character,
Options = request.Options,
Position = projectionResult.Position,
TextDocument = new TextDocumentIdentifier()
{
Uri = projectionResult.Uri
}
};
cancellationToken.ThrowIfCancellationRequested();
var contentType = triggerCharacterKind.Value.ToContainedLanguageContentType();
var response = await _requestInvoker.ReinvokeRequestOnServerAsync <DocumentOnTypeFormattingParams, TextEdit[]>(
Methods.TextDocumentOnTypeFormattingName,
contentType,
formattingParams,
cancellationToken).ConfigureAwait(false);
if (response == null)
{
return(null);
}
cancellationToken.ThrowIfCancellationRequested();
var remappedEdits = await _documentMappingProvider.RemapFormattedTextEditsAsync(projectionResult.Uri, response, request.Options, cancellationToken).ConfigureAwait(false);
return(remappedEdits);
}
public async Task <WorkspaceEdit?> HandleRequestAsync(RenameParams request, ClientCapabilities clientCapabilities, CancellationToken cancellationToken)
{
if (request is null)
{
throw new ArgumentNullException(nameof(request));
}
if (clientCapabilities is null)
{
throw new ArgumentNullException(nameof(clientCapabilities));
}
_logger.LogInformation($"Starting request for {request.TextDocument.Uri}.");
if (!_documentManager.TryGetDocument(request.TextDocument.Uri, out var documentSnapshot))
{
_logger.LogWarning($"Failed to find document {request.TextDocument.Uri}.");
return(null);
}
var projectionResult = await _projectionProvider.GetProjectionAsync(
documentSnapshot,
request.Position,
cancellationToken).ConfigureAwait(false);
if (projectionResult is null)
{
return(null);
}
cancellationToken.ThrowIfCancellationRequested();
var renameParams = new RenameParams()
{
Position = projectionResult.Position,
NewName = request.NewName,
TextDocument = new TextDocumentIdentifier()
{
Uri = projectionResult.Uri
}
};
_logger.LogInformation($"Requesting rename for {projectionResult.Uri}.");
var serverKind = projectionResult.LanguageKind.ToLanguageServerKind();
var textBuffer = serverKind.GetTextBuffer(documentSnapshot);
var languageServerName = serverKind.ToLanguageServerName();
var response = await _requestInvoker.ReinvokeRequestOnServerAsync <RenameParams, WorkspaceEdit>(
textBuffer,
Methods.TextDocumentRenameName,
languageServerName,
renameParams,
cancellationToken).ConfigureAwait(false);
if (!ReinvocationResponseHelper.TryExtractResultOrLog(response, _logger, languageServerName, out var result))
{
return(null);
}
_logger.LogInformation("Received result, remapping.");
var remappedResult = await _documentMappingProvider.RemapWorkspaceEditAsync(result, cancellationToken).ConfigureAwait(false);
_logger.LogInformation("Returned rename result.");
return(remappedResult);
}
// Internal for testing
internal async override Task <VSInternalReferenceItem[]> HandleRequestAsync(ReferenceParams request, ClientCapabilities clientCapabilities, string token, CancellationToken cancellationToken)
{
if (request is null)
{
throw new ArgumentNullException(nameof(request));
}
if (clientCapabilities is null)
{
throw new ArgumentNullException(nameof(clientCapabilities));
}
_logger.LogInformation($"Starting request for {request.TextDocument.Uri}.");
if (!_documentManager.TryGetDocument(request.TextDocument.Uri, out var documentSnapshot))
{
_logger.LogWarning($"Failed to find document {request.TextDocument.Uri}.");
return(null);
}
var projectionResult = await _projectionProvider.GetProjectionAsync(
documentSnapshot,
request.Position,
cancellationToken).ConfigureAwait(false);
if (projectionResult == null)
{
return(null);
}
cancellationToken.ThrowIfCancellationRequested();
var referenceParams = new SerializableReferenceParams()
{
Position = projectionResult.Position,
TextDocument = new TextDocumentIdentifier()
{
Uri = projectionResult.Uri
},
Context = request.Context,
PartialResultToken = token // request.PartialResultToken
};
_logger.LogInformation("Attaching to progress listener.");
if (!_lspProgressListener.TryListenForProgress(
token,
onProgressNotifyAsync: (value, ct) => ProcessReferenceItemsAsync(value, request.PartialResultToken, ct),
DelayAfterLastNotifyAsync,
cancellationToken,
out var onCompleted))
{
_logger.LogWarning("Failed to attach to progress listener.");
return(null);
}
_logger.LogInformation($"Requesting references for {projectionResult.Uri}.");
var response = await _requestInvoker.ReinvokeRequestOnServerAsync <SerializableReferenceParams, VSInternalReferenceItem[]>(
Methods.TextDocumentReferencesName,
projectionResult.LanguageKind.ToContainedLanguageServerName(),
referenceParams,
cancellationToken).ConfigureAwait(false);
var result = response.Result;
if (result is null)
{
_logger.LogInformation("Received no results from initial request.");
return(null);
}
cancellationToken.ThrowIfCancellationRequested();
_logger.LogInformation("Waiting on progress notifications.");
// We must not return till we have received the progress notifications
// and reported the results via the PartialResultToken
await onCompleted.ConfigureAwait(false);
cancellationToken.ThrowIfCancellationRequested();
_logger.LogInformation("Finished waiting, remapping results.");
// Results returned through Progress notification
var remappedResults = await RemapReferenceItemsAsync(result, cancellationToken).ConfigureAwait(false);
_logger.LogInformation($"Returning {remappedResults.Length} results.");
return(remappedResults);
// Local functions
async Task DelayAfterLastNotifyAsync(CancellationToken cancellationToken)
{
using var combined = ImmediateNotificationTimeout.CombineWith(cancellationToken);
try
{
await Task.Delay(WaitForProgressNotificationTimeout, combined.Token).ConfigureAwait(false);
}
catch (TaskCanceledException) when(ImmediateNotificationTimeout.IsCancellationRequested)
{
// The delay was requested to complete immediately
}
}
}
public async Task <SumType <Location[]?, VSInternalReferenceItem[]?> > HandleRequestAsync(TextDocumentPositionParams request, ClientCapabilities clientCapabilities, CancellationToken cancellationToken)
{
if (request is null)
{
throw new ArgumentNullException(nameof(request));
}
if (clientCapabilities is null)
{
throw new ArgumentNullException(nameof(clientCapabilities));
}
_logger.LogInformation($"Starting request for {request.TextDocument.Uri}.");
if (!_documentManager.TryGetDocument(request.TextDocument.Uri, out var documentSnapshot))
{
_logger.LogWarning($"Failed to find document {request.TextDocument.Uri}.");
return(new());
}
var projectionResult = await _projectionProvider.GetProjectionAsync(
documentSnapshot,
request.Position,
cancellationToken).ConfigureAwait(false);
if (projectionResult is null)
{
return(new());
}
cancellationToken.ThrowIfCancellationRequested();
var textDocumentPositionParams = new TextDocumentPositionParams()
{
Position = projectionResult.Position,
TextDocument = new TextDocumentIdentifier()
{
Uri = projectionResult.Uri
}
};
var serverKind = projectionResult.LanguageKind.ToLanguageServerKind();
var languageServerName = serverKind.ToLanguageServerName();
_logger.LogInformation($"Requesting {languageServerName} implementation for {projectionResult.Uri}.");
var textBuffer = serverKind.GetTextBuffer(documentSnapshot);
var response = await _requestInvoker.ReinvokeRequestOnServerAsync <TextDocumentPositionParams, SumType <Location[]?, VSInternalReferenceItem[]?> >(
textBuffer,
Methods.TextDocumentImplementationName,
languageServerName,
textDocumentPositionParams,
cancellationToken).ConfigureAwait(false);
if (!ReinvocationResponseHelper.TryExtractResultOrLog(response, _logger, languageServerName, out var result))
{
return(new());
}
cancellationToken.ThrowIfCancellationRequested();
// From some language servers we get VSInternalReferenceItem results, and from some we get Location results.
// We check for the _vs_id property, which is required in VSInternalReferenceItem, to know which is which.
if (result.Value is VSInternalReferenceItem[] referenceItems)
{
var remappedLocations = await FindAllReferencesHandler.RemapReferenceItemsAsync(referenceItems, _documentMappingProvider, _documentManager, cancellationToken).ConfigureAwait(false);
_logger.LogInformation($"Returning {remappedLocations?.Length} internal reference items.");
return(remappedLocations);
}
else if (result.Value is Location[] locations)
{
var remappedLocations = await _documentMappingProvider.RemapLocationsAsync(locations, cancellationToken).ConfigureAwait(false);
_logger.LogInformation($"Returning {remappedLocations?.Length} locations.");
return(remappedLocations);
}
_logger.LogInformation("Received no results.");
return(Array.Empty <VSInternalReferenceItem>());
}
public async Task <TextEdit[]> HandleRequestAsync(DocumentOnTypeFormattingParams request, ClientCapabilities clientCapabilities, CancellationToken cancellationToken)
{
if (!AllowedTriggerCharacters.Contains(request.Character, StringComparer.Ordinal))
{
// We haven't built support for this character yet.
return(EmptyEdits);
}
await _joinableTaskFactory.SwitchToMainThreadAsync(cancellationToken);
if (!_documentManager.TryGetDocument(request.TextDocument.Uri, out var documentSnapshot))
{
return(EmptyEdits);
}
await SwitchToBackgroundThread().ConfigureAwait(false);
var projectionResult = await _projectionProvider.GetProjectionAsync(documentSnapshot, request.Position, cancellationToken).ConfigureAwait(false);
if (projectionResult == null || projectionResult.LanguageKind != RazorLanguageKind.Html)
{
return(EmptyEdits);
}
if (request.Options.OtherOptions == null)
{
request.Options.OtherOptions = new Dictionary <string, object>();
}
request.Options.OtherOptions[LanguageServerConstants.ExpectsCursorPlaceholderKey] = true;
var formattingParams = new DocumentOnTypeFormattingParams()
{
Character = request.Character,
Options = request.Options,
Position = projectionResult.Position,
TextDocument = new TextDocumentIdentifier()
{
Uri = projectionResult.Uri
}
};
var serverKind = projectionResult.LanguageKind == RazorLanguageKind.CSharp ? LanguageServerKind.CSharp : LanguageServerKind.Html;
var edits = await _requestInvoker.ReinvokeRequestOnServerAsync <DocumentOnTypeFormattingParams, TextEdit[]>(
Methods.TextDocumentOnTypeFormattingName,
serverKind,
formattingParams,
cancellationToken).ConfigureAwait(false);
if (edits == null)
{
return(EmptyEdits);
}
var mappedEdits = new List <TextEdit>();
foreach (var edit in edits)
{
if (edit.Range == null || edit.NewText == null)
{
// Sometimes the HTML language server returns invalid edits like these. We should just ignore those.
continue;
}
var mappingResult = await _documentMappingProvider.MapToDocumentRangeAsync(projectionResult.LanguageKind, request.TextDocument.Uri, edit.Range, cancellationToken).ConfigureAwait(false);
if (mappingResult == null || mappingResult.HostDocumentVersion != documentSnapshot.Version)
{
// Couldn't remap the edits properly. Discard this request.
return(EmptyEdits);
}
var mappedEdit = new TextEdit()
{
NewText = edit.NewText,
Range = mappingResult.Range
};
mappedEdits.Add(mappedEdit);
}
if (mappedEdits.Count == 0)
{
return(EmptyEdits);
}
await _joinableTaskFactory.SwitchToMainThreadAsync(cancellationToken);
if (!_documentManager.TryGetDocument(request.TextDocument.Uri, out var newDocumentSnapshot) ||
newDocumentSnapshot.Version != documentSnapshot.Version)
{
// The document changed while were working on the background. Discard this request.
return(EmptyEdits);
}
await _editorService.ApplyTextEditsAsync(documentSnapshot.Uri, documentSnapshot.Snapshot, mappedEdits).ConfigureAwait(false);
// We would have already applied the edits and moved the cursor. Return empty.
return(EmptyEdits);
}
public async Task <Hover> HandleRequestAsync(TextDocumentPositionParams request, ClientCapabilities clientCapabilities, CancellationToken cancellationToken)
{
if (request is null)
{
throw new ArgumentNullException(nameof(request));
}
if (clientCapabilities is null)
{
throw new ArgumentNullException(nameof(clientCapabilities));
}
if (!_documentManager.TryGetDocument(request.TextDocument.Uri, out var documentSnapshot))
{
return(null);
}
var projectionResult = await _projectionProvider.GetProjectionAsync(documentSnapshot, request.Position, cancellationToken).ConfigureAwait(false);
if (projectionResult == null)
{
return(null);
}
var contentType = projectionResult.LanguageKind.ToContainedLanguageContentType();
cancellationToken.ThrowIfCancellationRequested();
var textDocumentPositionParams = new TextDocumentPositionParams()
{
Position = projectionResult.Position,
TextDocument = new TextDocumentIdentifier()
{
Uri = projectionResult.Uri
}
};
var result = await _requestInvoker.ReinvokeRequestOnServerAsync <TextDocumentPositionParams, Hover>(
Methods.TextDocumentHoverName,
contentType,
textDocumentPositionParams,
cancellationToken).ConfigureAwait(false);
if (result?.Range == null || result?.Contents == null)
{
return(null);
}
var mappingResult = await _documentMappingProvider.MapToDocumentRangesAsync(projectionResult.LanguageKind, request.TextDocument.Uri, new[] { result.Range }, cancellationToken).ConfigureAwait(false);
if (mappingResult == null || mappingResult.Ranges[0].IsUndefined())
{
// Couldn't remap the edits properly. Returning hover at initial request position.
return(CreateHover(result, new Range
{
Start = request.Position,
End = request.Position
}));
}
else if (mappingResult.HostDocumentVersion != documentSnapshot.Version)
{
// Discard hover if document has changed.
return(null);
}
return(CreateHover(result, mappingResult.Ranges[0]));
}
public async Task <TextEdit[]> HandleRequestAsync(DocumentOnTypeFormattingParams request, ClientCapabilities clientCapabilities, CancellationToken cancellationToken)
{
if (!AllTriggerCharacters.Contains(request.Character, StringComparer.Ordinal))
{
// Unexpected trigger character.
return(null);
}
_logger.LogInformation($"Starting request for {request.TextDocument.Uri}.");
if (!_documentManager.TryGetDocument(request.TextDocument.Uri, out var documentSnapshot))
{
_logger.LogWarning($"Failed to find document {request.TextDocument.Uri}.");
return(null);
}
var triggerCharacterKind = await GetTriggerCharacterLanguageKindAsync(documentSnapshot, request.Position, request.Character, cancellationToken).ConfigureAwait(false);
if (triggerCharacterKind == null)
{
_logger.LogInformation($"Failed to identify trigger character language context.");
return(null);
}
else if (triggerCharacterKind != RazorLanguageKind.CSharp)
{
_logger.LogInformation($"Unsupported trigger character language {triggerCharacterKind:G}.");
return(null);
}
if (!IsApplicableTriggerCharacter(request.Character, triggerCharacterKind.Value))
{
// We were triggered but the trigger character doesn't make sense for the current cursor position. Bail.
_logger.LogInformation("Unsupported trigger character location.");
return(null);
}
cancellationToken.ThrowIfCancellationRequested();
var projectionResult = await _projectionProvider.GetProjectionAsync(
documentSnapshot,
request.Position,
cancellationToken).ConfigureAwait(false);
if (projectionResult == null)
{
return(null);
}
var formattingParams = new DocumentOnTypeFormattingParams()
{
Character = request.Character,
Options = request.Options,
Position = projectionResult.Position,
TextDocument = new TextDocumentIdentifier()
{
Uri = projectionResult.Uri
}
};
cancellationToken.ThrowIfCancellationRequested();
_logger.LogInformation($"Requesting formatting for {projectionResult.Uri}.");
var contentType = triggerCharacterKind.Value.ToContainedLanguageContentType();
var textEdits = await _requestInvoker.ReinvokeRequestOnServerAsync <DocumentOnTypeFormattingParams, TextEdit[]>(
Methods.TextDocumentOnTypeFormattingName,
contentType,
formattingParams,
cancellationToken).ConfigureAwait(false);
if (textEdits == null)
{
_logger.LogInformation("Received no results.");
return(null);
}
_logger.LogInformation($"Received {textEdits.Length} results, remapping.");
cancellationToken.ThrowIfCancellationRequested();
var remappedTextEdits = await _documentMappingProvider.RemapFormattedTextEditsAsync(projectionResult.Uri, textEdits, request.Options, containsSnippet : false, cancellationToken).ConfigureAwait(false);
_logger.LogInformation($"Returning {remappedTextEdits?.Length} text edits.");
return(remappedTextEdits);
}
public async Task <Hover?> HandleRequestAsync(TextDocumentPositionParams request, ClientCapabilities clientCapabilities, CancellationToken cancellationToken)
{
if (request is null)
{
throw new ArgumentNullException(nameof(request));
}
if (clientCapabilities is null)
{
throw new ArgumentNullException(nameof(clientCapabilities));
}
_logger.LogInformation($"Starting request for {request.TextDocument.Uri}.");
if (!_documentManager.TryGetDocument(request.TextDocument.Uri, out var documentSnapshot))
{
_logger.LogWarning($"Failed to find document {request.TextDocument.Uri}.");
return(null);
}
var projectionResult = await _projectionProvider.GetProjectionAsync(
documentSnapshot,
request.Position,
cancellationToken).ConfigureAwait(false);
if (projectionResult is null)
{
return(null);
}
var languageServerName = projectionResult.LanguageKind.ToContainedLanguageServerName();
cancellationToken.ThrowIfCancellationRequested();
var textDocumentPositionParams = new TextDocumentPositionParams()
{
Position = projectionResult.Position,
TextDocument = new TextDocumentIdentifier()
{
Uri = projectionResult.Uri
}
};
_logger.LogInformation($"Requesting hovers for {projectionResult.Uri}.");
var serverKind = projectionResult.LanguageKind.ToLanguageServerKind();
var textBuffer = serverKind.GetTextBuffer(documentSnapshot);
var response = await _requestInvoker.ReinvokeRequestOnServerAsync <TextDocumentPositionParams, Hover>(
textBuffer,
Methods.TextDocumentHoverName,
languageServerName,
textDocumentPositionParams,
cancellationToken).ConfigureAwait(false);
if (!ReinvocationResponseHelper.TryExtractResultOrLog(response, _logger, languageServerName, out var result))
{
return(null);
}
if (result.Range is null)
{
_logger.LogInformation("Received no results.");
return(null);
}
_logger.LogInformation("Received result, remapping.");
var mappingResult = await _documentMappingProvider.MapToDocumentRangesAsync(
projectionResult.LanguageKind,
request.TextDocument.Uri,
new[] { result.Range },
cancellationToken).ConfigureAwait(false);
if (mappingResult is null || mappingResult.Ranges[0].IsUndefined())
{
// Couldn't remap the edits properly. Returning hover at initial request position.
_logger.LogInformation("Mapping failed");
return(CreateHover(result, new Range
{
Start = request.Position,
End = request.Position
}));
}
public async Task <SumType <CompletionItem[], CompletionList>?> HandleRequestAsync(CompletionParams request, ClientCapabilities clientCapabilities, CancellationToken cancellationToken)
{
await _joinableTaskFactory.SwitchToMainThreadAsync(cancellationToken);
if (!_documentManager.TryGetDocument(request.TextDocument.Uri, out var documentSnapshot))
{
return(null);
}
// Switch to a background thread.
await TaskScheduler.Default;
var projectionResult = await _projectionProvider.GetProjectionAsync(documentSnapshot, request.Position, cancellationToken).ConfigureAwait(false);
if (projectionResult == null)
{
return(null);
}
var serverKind = projectionResult.LanguageKind == RazorLanguageKind.CSharp ? LanguageServerKind.CSharp : LanguageServerKind.Html;
var(succeeded, result) = await TryGetProvisionalCompletionsAsync(request, documentSnapshot, projectionResult, cancellationToken).ConfigureAwait(false);
if (succeeded)
{
// This means the user has just typed a dot after some identifier such as (cursor is pipe): "DateTime.| "
// In this case Razor interprets after the dot as Html and before it as C#.
// We use this criteria to provide a better completion experience for what we call provisional changes.
}
else if (!TriggerAppliesToProjection(request.Context, projectionResult.LanguageKind))
{
return(null);
}
else
{
// This is a valid non-provisional completion request.
var completionParams = new CompletionParams()
{
Context = request.Context,
Position = projectionResult.Position,
TextDocument = new TextDocumentIdentifier()
{
Uri = projectionResult.Uri
}
};
result = await _requestInvoker.RequestServerAsync <CompletionParams, SumType <CompletionItem[], CompletionList>?>(
Methods.TextDocumentCompletionName,
serverKind,
completionParams,
cancellationToken).ConfigureAwait(false);
}
if (result.HasValue)
{
// Set some context on the CompletionItem so the CompletionResolveHandler can handle it accordingly.
result = SetResolveData(result.Value, serverKind);
}
return(result);
}
public async Task <DocumentHighlight[]> HandleRequestAsync(DocumentHighlightParams request, ClientCapabilities clientCapabilities, CancellationToken cancellationToken)
{
if (request is null)
{
throw new ArgumentNullException(nameof(request));
}
if (clientCapabilities is null)
{
throw new ArgumentNullException(nameof(clientCapabilities));
}
if (!_documentManager.TryGetDocument(request.TextDocument.Uri, out var documentSnapshot))
{
return(null);
}
var projectionResult = await _projectionProvider.GetProjectionAsync(documentSnapshot, request.Position, cancellationToken).ConfigureAwait(false);
if (projectionResult == null || projectionResult.LanguageKind != RazorLanguageKind.CSharp)
{
return(null);
}
cancellationToken.ThrowIfCancellationRequested();
var serverKind = LanguageServerKind.CSharp;
var documentHighlightParams = new DocumentHighlightParams()
{
Position = projectionResult.Position,
TextDocument = new TextDocumentIdentifier()
{
Uri = projectionResult.Uri
}
};
var highlights = await _requestInvoker.ReinvokeRequestOnServerAsync <DocumentHighlightParams, DocumentHighlight[]>(
Methods.TextDocumentDocumentHighlightName,
serverKind,
documentHighlightParams,
cancellationToken).ConfigureAwait(false);
if (highlights == null || highlights.Length == 0)
{
return(highlights);
}
var remappedHighlights = new List <DocumentHighlight>();
var rangesToMap = highlights.Select(r => r.Range).ToArray();
var mappingResult = await _documentMappingProvider.MapToDocumentRangesAsync(
projectionResult.LanguageKind,
request.TextDocument.Uri,
rangesToMap,
cancellationToken).ConfigureAwait(false);
if (mappingResult == null || mappingResult.HostDocumentVersion != documentSnapshot.Version)
{
// Couldn't remap the range or the document changed in the meantime. Discard this highlight.
return(Array.Empty <DocumentHighlight>());
}
for (var i = 0; i < highlights.Length; i++)
{
var highlight = highlights[i];
var range = mappingResult.Ranges[i];
if (range.IsUndefined())
{
// Couldn't remap the range correctly. Discard this range.
continue;
}
var remappedHighlight = new DocumentHighlight()
{
Range = range,
Kind = highlight.Kind
};
remappedHighlights.Add(remappedHighlight);
}
return(remappedHighlights.ToArray());
}
public async Task <SumType <CompletionItem[], CompletionList>?> HandleRequestAsync(CompletionParams request, ClientCapabilities clientCapabilities, CancellationToken cancellationToken)
{
if (request is null)
{
throw new ArgumentNullException(nameof(request));
}
if (clientCapabilities is null)
{
throw new ArgumentNullException(nameof(clientCapabilities));
}
_logger.LogInformation($"Starting request for {request.TextDocument.Uri}.");
if (!_documentManager.TryGetDocument(request.TextDocument.Uri, out var documentSnapshot))
{
_logger.LogWarning($"Failed to find document {request.TextDocument.Uri}.");
return(null);
}
if (!TryGetWordExtent(request, documentSnapshot, out var wordExtent))
{
return(null);
}
var projectionResult = await _projectionProvider.GetProjectionAsync(
documentSnapshot,
request.Position,
cancellationToken).ConfigureAwait(false);
if (projectionResult == null)
{
if (IsRazorCompilerBugWithCSharpKeywords(request, wordExtent))
{
var csharpPolyfilledCompletionList = new CompletionList()
{
Items = Array.Empty <CompletionItem>(),
IsIncomplete = true,
};
csharpPolyfilledCompletionList = IncludeCSharpKeywords(csharpPolyfilledCompletionList);
return(csharpPolyfilledCompletionList);
}
return(null);
}
var projectedPosition = projectionResult.Position;
var projectedDocumentUri = projectionResult.Uri;
var serverKind = projectionResult.LanguageKind == RazorLanguageKind.CSharp ? LanguageServerKind.CSharp : LanguageServerKind.Html;
var languageServerName = projectionResult.LanguageKind == RazorLanguageKind.CSharp ? RazorLSPConstants.RazorCSharpLanguageServerName : RazorLSPConstants.HtmlLanguageServerName;
var(succeeded, result) = await TryGetProvisionalCompletionsAsync(request, documentSnapshot, projectionResult, cancellationToken).ConfigureAwait(false);
if (succeeded)
{
// This means the user has just typed a dot after some identifier such as (cursor is pipe): "DateTime.| "
// In this case Razor interprets after the dot as Html and before it as C#.
// We use this criteria to provide a better completion experience for what we call provisional changes.
serverKind = LanguageServerKind.CSharp;
if (documentSnapshot.TryGetVirtualDocument <CSharpVirtualDocumentSnapshot>(out var csharpVirtualDocumentSnapshot))
{
projectedDocumentUri = csharpVirtualDocumentSnapshot.Uri;
}
else
{
_logger.LogError("Could not acquire C# virtual document snapshot after provisional completion.");
}
}
else if (!TriggerAppliesToProjection(request.Context, projectionResult.LanguageKind))
{
_logger.LogInformation("Trigger does not apply to projection.");
return(null);
}
else
{
// This is a valid non-provisional completion request.
_logger.LogInformation("Searching for non-provisional completions, rewriting context.");
var completionContext = RewriteContext(request.Context, projectionResult.LanguageKind);
var completionParams = new CompletionParams()
{
Context = completionContext,
Position = projectedPosition,
TextDocument = new TextDocumentIdentifier()
{
Uri = projectedDocumentUri
}
};
_logger.LogInformation($"Requesting non-provisional completions for {projectedDocumentUri}.");
var textBuffer = serverKind.GetTextBuffer(documentSnapshot);
var response = await _requestInvoker.ReinvokeRequestOnServerAsync <CompletionParams, SumType <CompletionItem[], CompletionList>?>(
textBuffer,
Methods.TextDocumentCompletionName,
languageServerName,
completionParams,
cancellationToken).ConfigureAwait(false);
if (!ReinvocationResponseHelper.TryExtractResultOrLog(response, _logger, languageServerName, out result))
{
return(null);
}
_logger.LogInformation("Found non-provisional completion");
}
if (TryConvertToCompletionList(result, out var completionList))
{
if (serverKind == LanguageServerKind.CSharp)
{
completionList = PostProcessCSharpCompletionList(request, documentSnapshot, wordExtent, completionList);
}
completionList = TranslateTextEdits(request.Position, projectedPosition, wordExtent, completionList);
var requestContext = new CompletionRequestContext(documentSnapshot.Uri, projectedDocumentUri, serverKind);
var resultId = _completionRequestContextCache.Set(requestContext);
SetResolveData(resultId, completionList);
}
if (completionList != null)
{
completionList = completionList is VSInternalCompletionList vsCompletionList
? new OptimizedVSCompletionList(vsCompletionList)
: new OptimizedVSCompletionList(completionList);
}
_logger.LogInformation("Returning completion list.");
return(completionList);
public async Task <DocumentHighlight[]> HandleRequestAsync(DocumentHighlightParams request, ClientCapabilities clientCapabilities, CancellationToken cancellationToken)
{
if (request is null)
{
throw new ArgumentNullException(nameof(request));
}
if (clientCapabilities is null)
{
throw new ArgumentNullException(nameof(clientCapabilities));
}
_logger.LogInformation($"Starting request for {request.TextDocument.Uri}.");
if (!_documentManager.TryGetDocument(request.TextDocument.Uri, out var documentSnapshot))
{
_logger.LogWarning($"Failed to find document {request.TextDocument.Uri}.");
return(null);
}
var projectionResult = await _projectionProvider.GetProjectionAsync(
documentSnapshot,
request.Position,
cancellationToken).ConfigureAwait(false);
if (projectionResult == null)
{
return(null);
}
var serverKind = projectionResult.LanguageKind == RazorLanguageKind.CSharp ? LanguageServerKind.CSharp : LanguageServerKind.Html;
cancellationToken.ThrowIfCancellationRequested();
var documentHighlightParams = new DocumentHighlightParams()
{
Position = projectionResult.Position,
TextDocument = new TextDocumentIdentifier()
{
Uri = projectionResult.Uri
}
};
_logger.LogInformation($"Requesting highlights for {projectionResult.Uri} at ({projectionResult.Position?.Line}, {projectionResult.Position?.Character}).");
var highlights = await _requestInvoker.ReinvokeRequestOnServerAsync <DocumentHighlightParams, DocumentHighlight[]>(
Methods.TextDocumentDocumentHighlightName,
serverKind.ToContentType(),
documentHighlightParams,
cancellationToken).ConfigureAwait(false);
if (highlights == null || highlights.Length == 0)
{
_logger.LogInformation("Received no results.");
return(highlights);
}
_logger.LogInformation($"Received {highlights.Length} results, remapping.");
var remappedHighlights = new List <DocumentHighlight>();
var rangesToMap = highlights.Select(r => r.Range).ToArray();
var mappingResult = await _documentMappingProvider.MapToDocumentRangesAsync(
projectionResult.LanguageKind,
request.TextDocument.Uri,
rangesToMap,
cancellationToken).ConfigureAwait(false);
if (mappingResult == null || mappingResult.HostDocumentVersion != documentSnapshot.Version)
{
// Couldn't remap the range or the document changed in the meantime. Discard this highlight.
_logger.LogInformation($"Mapping failed. Versions: {documentSnapshot.Version} -> {mappingResult?.HostDocumentVersion}.");
return(Array.Empty <DocumentHighlight>());
}
for (var i = 0; i < highlights.Length; i++)
{
var highlight = highlights[i];
var range = mappingResult.Ranges[i];
if (range.IsUndefined())
{
// Couldn't remap the range correctly. Discard this range.
continue;
}
var remappedHighlight = new DocumentHighlight()
{
Range = range,
Kind = highlight.Kind
};
remappedHighlights.Add(remappedHighlight);
}
_logger.LogInformation($"Returning {remappedHighlights.Count} highlights.");
return(remappedHighlights.ToArray());
}
public async Task <DocumentOnAutoInsertResponseItem> HandleRequestAsync(DocumentOnAutoInsertParams request, ClientCapabilities clientCapabilities, CancellationToken cancellationToken)
{
if (request is null)
{
throw new ArgumentNullException(nameof(request));
}
if (!AllAllowedTriggerCharacters.Contains(request.Character, StringComparer.Ordinal))
{
// We haven't built support for this character yet.
return(null);
}
_logger.LogInformation($"Starting request for {request.TextDocument.Uri}, with trigger character {request.Character}.");
if (!_documentManager.TryGetDocument(request.TextDocument.Uri, out var documentSnapshot))
{
return(null);
}
var projectionResult = await _projectionProvider.GetProjectionAsync(documentSnapshot, request.Position, cancellationToken).ConfigureAwait(false);
if (projectionResult == null)
{
_logger.LogWarning($"Failed to find document {request.TextDocument.Uri}.");
return(null);
}
else if (projectionResult.LanguageKind == RazorLanguageKind.Razor)
{
_logger.LogInformation("OnAutoInsert not supported in Razor context.");
return(null);
}
else if (projectionResult.LanguageKind == RazorLanguageKind.Html &&
!HTMLAllowedTriggerCharacters.Contains(request.Character, StringComparer.Ordinal))
{
_logger.LogInformation("Inapplicable HTML trigger char.");
return(null);
}
else if (projectionResult.LanguageKind == RazorLanguageKind.CSharp &&
!CSharpAllowedTriggerCharacters.Contains(request.Character, StringComparer.Ordinal))
{
_logger.LogInformation("Inapplicable C# trigger char.");
return(null);
}
var formattingParams = new DocumentOnAutoInsertParams()
{
Character = request.Character,
Options = request.Options,
Position = projectionResult.Position,
TextDocument = new TextDocumentIdentifier()
{
Uri = projectionResult.Uri
}
};
_logger.LogInformation($"Requesting auto-insert for {projectionResult.Uri}.");
var contentType = projectionResult.LanguageKind.ToContainedLanguageContentType();
var response = await _requestInvoker.ReinvokeRequestOnServerAsync <DocumentOnAutoInsertParams, DocumentOnAutoInsertResponseItem>(
MSLSPMethods.OnAutoInsertName,
contentType,
formattingParams,
cancellationToken).ConfigureAwait(false);
if (response == null)
{
_logger.LogInformation("Received no results.");
return(null);
}
_logger.LogInformation("Received result, remapping.");
var containsSnippet = response.TextEditFormat == InsertTextFormat.Snippet;
var remappedEdits = await _documentMappingProvider.RemapFormattedTextEditsAsync(
projectionResult.Uri,
new[] { response.TextEdit },
request.Options,
containsSnippet,
cancellationToken).ConfigureAwait(false);
if (!remappedEdits.Any())
{
_logger.LogInformation("No edits remain after remapping.");
return(null);
}
var remappedEdit = remappedEdits.Single();
var remappedResponse = new DocumentOnAutoInsertResponseItem()
{
TextEdit = remappedEdit,
TextEditFormat = response.TextEditFormat,
};
_logger.LogInformation($"Returning edit.");
return(remappedResponse);
}
public async Task <Location[]> HandleRequestAsync(TextDocumentPositionParams request, ClientCapabilities clientCapabilities, CancellationToken cancellationToken)
{
if (request is null)
{
throw new ArgumentNullException(nameof(request));
}
if (clientCapabilities is null)
{
throw new ArgumentNullException(nameof(clientCapabilities));
}
_logger.LogInformation($"Starting request for {request.TextDocument.Uri}.");
if (!_documentManager.TryGetDocument(request.TextDocument.Uri, out var documentSnapshot))
{
_logger.LogWarning($"Failed to find document {request.TextDocument.Uri}.");
return(null);
}
var projectionResult = await _projectionProvider.GetProjectionAsync(
documentSnapshot,
request.Position,
cancellationToken).ConfigureAwait(false);
if (projectionResult == null)
{
return(null);
}
cancellationToken.ThrowIfCancellationRequested();
var textDocumentPositionParams = new TextDocumentPositionParams()
{
Position = projectionResult.Position,
TextDocument = new TextDocumentIdentifier()
{
Uri = projectionResult.Uri
}
};
var serverKind = projectionResult.LanguageKind.ToLanguageServerKind();
var languageServerName = serverKind.ToLanguageServerName();
_logger.LogInformation($"Requesting {languageServerName} implementation for {projectionResult.Uri}.");
var textBuffer = serverKind.GetTextBuffer(documentSnapshot);
var response = await _requestInvoker.ReinvokeRequestOnServerAsync <TextDocumentPositionParams, Location[]>(
textBuffer,
Methods.TextDocumentImplementationName,
languageServerName,
textDocumentPositionParams,
cancellationToken).ConfigureAwait(false);
if (!ReinvocationResponseHelper.TryExtractResultOrLog(response, _logger, languageServerName, out var locations))
{
return(null);
}
if (locations.Length == 0)
{
_logger.LogInformation("Received no results.");
return(locations);
}
_logger.LogInformation($"Received {locations.Length} results, remapping.");
cancellationToken.ThrowIfCancellationRequested();
var remappedLocations = await _documentMappingProvider.RemapLocationsAsync(locations, cancellationToken).ConfigureAwait(false);
_logger.LogInformation($"Returning {remappedLocations?.Length} locations.");
return(remappedLocations);
}
// Internal for testing
internal async override Task <VSReferenceItem[]> HandleRequestAsync(ReferenceParams request, ClientCapabilities clientCapabilities, string token, CancellationToken cancellationToken)
{
if (request is null)
{
throw new ArgumentNullException(nameof(request));
}
if (clientCapabilities is null)
{
throw new ArgumentNullException(nameof(clientCapabilities));
}
if (!_documentManager.TryGetDocument(request.TextDocument.Uri, out var documentSnapshot))
{
return(null);
}
var projectionResult = await _projectionProvider.GetProjectionAsync(documentSnapshot, request.Position, cancellationToken).ConfigureAwait(false);
if (projectionResult == null)
{
return(null);
}
cancellationToken.ThrowIfCancellationRequested();
var referenceParams = new SerializableReferenceParams()
{
Position = projectionResult.Position,
TextDocument = new TextDocumentIdentifier()
{
Uri = projectionResult.Uri
},
Context = request.Context,
PartialResultToken = token // request.PartialResultToken
};
if (!_lspProgressListener.TryListenForProgress(
token,
onProgressNotifyAsync: (value, ct) => ProcessReferenceItemsAsync(value, request.PartialResultToken, ct),
WaitForProgressNotificationTimeout,
cancellationToken,
out var onCompleted))
{
return(null);
}
var result = await _requestInvoker.ReinvokeRequestOnServerAsync <SerializableReferenceParams, VSReferenceItem[]>(
Methods.TextDocumentReferencesName,
projectionResult.LanguageKind.ToContainedLanguageContentType(),
referenceParams,
cancellationToken).ConfigureAwait(false);
if (result == null)
{
return(null);
}
cancellationToken.ThrowIfCancellationRequested();
// We must not return till we have received the progress notifications
// and reported the results via the PartialResultToken
await onCompleted.ConfigureAwait(false);
cancellationToken.ThrowIfCancellationRequested();
// Results returned through Progress notification
var remappedResults = await RemapReferenceItemsAsync(result, cancellationToken).ConfigureAwait(false);
return(remappedResults);
}