public async Task <RazorLanguageQueryResponse> Handle(RazorLanguageQueryParams request, CancellationToken cancellationToken)
{
int?documentVersion = null;
DocumentSnapshot documentSnapshot = null;
await Task.Factory.StartNew(() =>
{
_documentResolver.TryResolveDocument(request.Uri.GetAbsoluteOrUNCPath(), out documentSnapshot);
if (!_documentVersionCache.TryGetDocumentVersion(documentSnapshot, out documentVersion))
{
// This typically happens for closed documents.
documentVersion = null;
}
return(documentSnapshot);
}, CancellationToken.None, TaskCreationOptions.None, _foregroundDispatcher.ForegroundScheduler);
var codeDocument = await documentSnapshot.GetGeneratedOutputAsync();
var sourceText = await documentSnapshot.GetTextAsync();
var linePosition = new LinePosition((int)request.Position.Line, (int)request.Position.Character);
var hostDocumentIndex = sourceText.Lines.GetPosition(linePosition);
var responsePosition = request.Position;
if (codeDocument.IsUnsupported())
{
// All language queries on unsupported documents return Html. This is equivalent to what pre-VSCode Razor was capable of.
return(new RazorLanguageQueryResponse()
{
Kind = RazorLanguageKind.Html,
Position = responsePosition,
PositionIndex = hostDocumentIndex,
HostDocumentVersion = documentVersion,
});
}
var responsePositionIndex = hostDocumentIndex;
var languageKind = _documentMappingService.GetLanguageKind(codeDocument, hostDocumentIndex);
if (languageKind == RazorLanguageKind.CSharp)
{
if (_documentMappingService.TryMapToProjectedDocumentPosition(codeDocument, hostDocumentIndex, out var projectedPosition, out var projectedIndex))
{
// For C# locations, we attempt to return the corresponding position
// within the projected document
responsePosition = projectedPosition;
responsePositionIndex = projectedIndex;
}
else
{
// It no longer makes sense to think of this location as C#, since it doesn't
// correspond to any position in the projected document. This should not happen
// since there should be source mappings for all the C# spans.
languageKind = RazorLanguageKind.Razor;
responsePositionIndex = hostDocumentIndex;
}
}
public async Task <RazorLanguageQueryResponse> Handle(RazorLanguageQueryParams request, CancellationToken cancellationToken)
{
var documentUri = request.Uri.GetAbsoluteOrUNCPath();
var info = await TryGetDocumentSnapshotAndVersionAsync(documentUri, cancellationToken).ConfigureAwait(false);
if (info is null)
{
_logger.LogError("Failed to get the document snapshot '{documentUri}', could not map to document ranges.", documentUri);
throw new InvalidOperationException($"Unable to resolve document {request.Uri.GetAbsoluteOrUNCPath()}.");
}
var(documentSnapshot, documentVersion) = info;
var codeDocument = await documentSnapshot.GetGeneratedOutputAsync();
var sourceText = await documentSnapshot.GetTextAsync();
var linePosition = new LinePosition(request.Position.Line, request.Position.Character);
var hostDocumentIndex = sourceText.Lines.GetPosition(linePosition);
var responsePosition = request.Position;
if (codeDocument.IsUnsupported())
{
// All language queries on unsupported documents return Html. This is equivalent to what pre-VSCode Razor was capable of.
return(new RazorLanguageQueryResponse()
{
Kind = RazorLanguageKind.Html,
Position = responsePosition,
PositionIndex = hostDocumentIndex,
HostDocumentVersion = documentVersion,
});
}
var responsePositionIndex = hostDocumentIndex;
var languageKind = _documentMappingService.GetLanguageKind(codeDocument, hostDocumentIndex);
if (languageKind == RazorLanguageKind.CSharp)
{
if (_documentMappingService.TryMapToProjectedDocumentPosition(codeDocument, hostDocumentIndex, out var projectedPosition, out var projectedIndex))
{
// For C# locations, we attempt to return the corresponding position
// within the projected document
responsePosition = projectedPosition;
responsePositionIndex = projectedIndex;
}
else
{
// It no longer makes sense to think of this location as C#, since it doesn't
// correspond to any position in the projected document. This should not happen
// since there should be source mappings for all the C# spans.
languageKind = RazorLanguageKind.Razor;
responsePositionIndex = hostDocumentIndex;
}
}