private async Task <ProjectionResult?> GetProjectionCoreAsync(LSPDocumentSnapshot documentSnapshot, Position position, bool rejectOnNewerParallelRequest, CancellationToken cancellationToken)
{
if (documentSnapshot is null)
{
throw new ArgumentNullException(nameof(documentSnapshot));
}
if (position is null)
{
throw new ArgumentNullException(nameof(position));
}
// We initialize the logger here instead of the constructor as the projection provider is constructed
// *before* the language server. Thus, the log hub has yet to be initialized, thus we would be unable to
// create the logger at that time.
await InitializeLogHubAsync(cancellationToken).ConfigureAwait(false);
var languageQueryParams = new RazorLanguageQueryParams()
{
Position = position,
Uri = documentSnapshot.Uri
};
var response = await _requestInvoker.ReinvokeRequestOnServerAsync <RazorLanguageQueryParams, RazorLanguageQueryResponse>(
documentSnapshot.Snapshot.TextBuffer,
LanguageServerConstants.RazorLanguageQueryEndpoint,
RazorLSPConstants.RazorLanguageServerName,
CheckRazorLanguageQueryCapability,
languageQueryParams,
cancellationToken).ConfigureAwait(false);
var languageResponse = response?.Response;
if (languageResponse is null)
{
_logHubLogger?.LogInformation("The language server is still being spun up. Could not resolve the projection.");
return(null);
}
VirtualDocumentSnapshot virtualDocument;
if (languageResponse.Kind == RazorLanguageKind.CSharp &&
documentSnapshot.TryGetVirtualDocument <CSharpVirtualDocumentSnapshot>(out var csharpDoc))
{
virtualDocument = csharpDoc;
}
else if (languageResponse.Kind == RazorLanguageKind.Html &&
documentSnapshot.TryGetVirtualDocument <HtmlVirtualDocumentSnapshot>(out var htmlDoc))
{
virtualDocument = htmlDoc;
}
else
{
_logHubLogger?.LogInformation($"Could not find projection for {languageResponse.Kind:G}.");
return(null);
}
if (languageResponse.HostDocumentVersion is null)
{
// There should always be a document version attached to an open document.
// Log it and move on as if it was synchronized.
var message = $"Could not find a document version associated with the document '{documentSnapshot.Uri}'";
_activityLogger.LogVerbose(message);
_logHubLogger?.LogWarning(message);
}
else
{
var synchronized = await _documentSynchronizer.TrySynchronizeVirtualDocumentAsync(documentSnapshot.Version, virtualDocument, rejectOnNewerParallelRequest, cancellationToken).ConfigureAwait(false);
if (!synchronized)
{
_logHubLogger?.LogInformation("Could not synchronize.");
return(null);
}
}
var result = new ProjectionResult()
{
Uri = virtualDocument.Uri,
Position = languageResponse.Position,
PositionIndex = languageResponse.PositionIndex,
LanguageKind = languageResponse.Kind,
HostDocumentVersion = languageResponse.HostDocumentVersion
};
return(result);
}
public override async Task <ProjectionResult> GetProjectionAsync(LSPDocumentSnapshot documentSnapshot, Position position, CancellationToken cancellationToken)
{
if (documentSnapshot is null)
{
throw new ArgumentNullException(nameof(documentSnapshot));
}
if (position is null)
{
throw new ArgumentNullException(nameof(position));
}
var languageQueryParams = new RazorLanguageQueryParams()
{
Position = new Position(position.Line, position.Character),
Uri = documentSnapshot.Uri
};
var languageResponse = await _requestInvoker.RequestServerAsync <RazorLanguageQueryParams, RazorLanguageQueryResponse>(
LanguageServerConstants.RazorLanguageQueryEndpoint,
LanguageServerKind.Razor,
languageQueryParams,
cancellationToken).ConfigureAwait(false);
VirtualDocumentSnapshot virtualDocument;
if (languageResponse.Kind == RazorLanguageKind.CSharp &&
documentSnapshot.TryGetVirtualDocument <CSharpVirtualDocumentSnapshot>(out var csharpDoc))
{
virtualDocument = csharpDoc;
}
else if (languageResponse.Kind == RazorLanguageKind.Html &&
documentSnapshot.TryGetVirtualDocument <HtmlVirtualDocumentSnapshot>(out var htmlDoc))
{
virtualDocument = htmlDoc;
}
else
{
return(null);
}
if (languageResponse.HostDocumentVersion == UndefinedDocumentVersion)
{
// There should always be a document version attached to an open document.
// Log it and move on as if it was synchronized.
_logger.LogVerbose($"Could not find a document version associated with the document '{documentSnapshot.Uri}'");
}
else
{
var synchronized = await _documentSynchronizer.TrySynchronizeVirtualDocumentAsync(documentSnapshot.Version, virtualDocument, cancellationToken).ConfigureAwait(false);
if (!synchronized)
{
// Could not synchronize
return(null);
}
}
var result = new ProjectionResult()
{
Uri = virtualDocument.Uri,
Position = languageResponse.Position,
PositionIndex = languageResponse.PositionIndex,
LanguageKind = languageResponse.Kind,
HostDocumentVersion = languageResponse.HostDocumentVersion
};
return(result);
}