protected override async Task Tokenize(
SemanticTokensBuilder builder, ITextDocumentIdentifierParams identifier,
CancellationToken cancellationToken
)
{
var hash = Hash.StringHash(identifier.TextDocument.Uri.GetFileSystemPath());
var now = DateTime.Now;
IntPtr tokensPtr = IntPtr.Zero;
int count = 0;
long internalMicros = TreeSitter.GetTokens(hash, out tokensPtr, out count); // this can be async because it actually does work.
var then = DateTime.Now;
var elapsed = then - now;
_logger.LogInformation("Elapsed time for C++ tokens: " + elapsed.TotalMilliseconds + " native time: " + internalMicros);
List <Diagnostic> diagnostics = new List <Diagnostic>();
unsafe
{
SemanticToken *ptr = (SemanticToken *)tokensPtr;
for (int i = 0; i < count; i++)
{
if ((int)ptr[i].type == 255)
{
Diagnostic diag = new Diagnostic();
diag.Severity = DiagnosticSeverity.Error;
diag.Range = new OmniSharp.Extensions.LanguageServer.Protocol.Models.Range();
diag.Range.Start = new Position(ptr[i].line, ptr[i].col);
diag.Range.End = new Position(ptr[i].line, ptr[i].col + ptr[i].length);
diag.Message = "undeclared identifer";
diagnostics.Add(diag);
continue;
}
builder.Push(ptr[i].line, ptr[i].col, ptr[i].length, (int)ptr[i].type, (int)ptr[i].modifier);
}
}
diagnoser.Add(identifier.TextDocument.Uri, 0, diagnostics);
diagnoser.Publish(identifier.TextDocument.Uri);
}
public override Task <SignatureHelp> Handle(SignatureHelpParams request, CancellationToken cancellationToken)
{
var currentHash = Hash.StringHash(request.TextDocument.Uri.GetFileSystemPath());
var pos = request.Position;
TreeSitter.GetSignature(currentHash, pos.Line, pos.Character, out var signatureArrayPtr, out var parameterCount, out var activeParameter, out var errorCount, out var errorRanges);
if (signatureArrayPtr.ToInt64() == 0)
{
return(Task.FromResult(new SignatureHelp()));
}
var signaturePtr = System.Runtime.InteropServices.Marshal.ReadIntPtr(signatureArrayPtr);
var signature = System.Runtime.InteropServices.Marshal.PtrToStringAnsi(signaturePtr);
SignatureInformation info = new SignatureInformation();
info.Label = signature;
var paramList = new List <ParameterInformation>();
if (parameterCount > 0)
{
for (int i = 0; i < parameterCount; i++)
{
var paramInfo = new ParameterInformation();
var paramPtr = System.Runtime.InteropServices.Marshal.ReadIntPtr(signatureArrayPtr + 8 * (i + 1));;
paramInfo.Label = System.Runtime.InteropServices.Marshal.PtrToStringAnsi(paramPtr);
paramList.Add(paramInfo);
}
}
info.Parameters = new Container <ParameterInformation>(paramList);
SignatureHelp help = new SignatureHelp();
help.Signatures = new Container <SignatureInformation>(info);
help.ActiveParameter = activeParameter;
help.ActiveSignature = 0;
if (errorCount > 0)
{
List <Diagnostic> diagnostics = new List <Diagnostic>();
PublishDiagnosticsParams diagnosticsParams = new PublishDiagnosticsParams();
diagnosticsParams.Uri = request.TextDocument.Uri;
unsafe
{
for (int i = 0; i < errorCount; i++)
{
Range * errors = (Range *)errorRanges;
var error = errors[i];
Diagnostic diagnostic = new Diagnostic();
diagnostic.Message = "Extra argument";
diagnostic.Range = new OmniSharp.Extensions.LanguageServer.Protocol.Models.Range(
new Position(error.startLine, error.startCol),
new Position(error.endLine, error.endCol));
diagnostics.Add(diagnostic);
}
}
diagnoser.Add(request.TextDocument.Uri, 1, diagnostics);
}
else
{
diagnoser.Add(request.TextDocument.Uri, 1, new List <Diagnostic>());
}
return(Task.FromResult(help));
}