org.eclipse.lsp4j.SignatureHelpParams Java Examples

@Override
public SignatureHelp getSignatureHelp(final Document document, final XtextResource resource, final SignatureHelpParams params, final CancelIndicator cancelIndicator) {
  final int offset = document.getOffSet(params.getPosition());
  Preconditions.<XtextResource>checkNotNull(resource, "resource");
  Preconditions.checkArgument((offset >= 0), ("offset >= 0. Was: " + Integer.valueOf(offset)));
  final EObject object = this.offsetHelper.resolveContainedElementAt(resource, offset);
  if ((object instanceof OperationCall)) {
    final String operationName = this.getOperationName(((OperationCall)object));
    boolean _isNullOrEmpty = StringExtensions.isNullOrEmpty(operationName);
    boolean _not = (!_isNullOrEmpty);
    if (_not) {
      return this.getSignatureHelp(((OperationCall)object), operationName, offset);
    }
  }
  return ISignatureHelpService.EMPTY;
}
 

/**
 * Displays a function's parameters, including which one is currently
 * active. Called automatically by VSCode any time that the user types "(",
 * so be sure to check that a function call is actually happening at the
 * current position.
 */
@Override
public CompletableFuture<SignatureHelp> signatureHelp(SignatureHelpParams params)
{
    return CompletableFutures.computeAsync(compilerWorkspace.getExecutorService(), cancelToken ->
    {
        cancelToken.checkCanceled();

        //make sure that the latest changes have been passed to
        //workspace.fileChanged() before proceeding
        if(realTimeProblemsChecker != null)
        {
            realTimeProblemsChecker.updateNow();
        }

        compilerWorkspace.startBuilding();
        try
        {
            SignatureHelpProvider provider = new SignatureHelpProvider(workspaceFolderManager, fileTracker);
            return provider.signatureHelp(params, cancelToken);
        }
        finally
        {
            compilerWorkspace.doneBuilding();
        }
    });
}
 

/**
 * Compute the signature help. Executed in a read request.
 * @since 2.20
 */
protected SignatureHelp signatureHelp(SignatureHelpParams params, CancelIndicator cancelIndicator) {
	URI uri = getURI(params);
	ISignatureHelpService helper = getService(uri, ISignatureHelpService.class);
	if (helper == null) {
		return ISignatureHelpService.EMPTY;
	}
	return workspaceManager.doRead(uri,
			(doc, resource) -> helper.getSignatureHelp(doc, resource, params, cancelIndicator));
}
 

@Override
public CompletableFuture<SignatureHelp> signatureHelp(SignatureHelpParams signatureHelpParams) {
	LOGGER.info("signatureHelp: {}", signatureHelpParams.getTextDocument());
	return CompletableFuture.completedFuture(null);
}
 

@Override
public CompletableFuture<SignatureHelp> signatureHelp(SignatureHelpParams position) {
	logInfo(">> document/signatureHelp");
	SignatureHelpHandler handler = new SignatureHelpHandler(preferenceManager);
	return computeAsync((monitor) -> handler.signatureHelp(position, monitor));
}
 

private SignatureHelp getSignatureHelp(ICompilationUnit cu, int line, int character) {
	String payload = createSignatureHelpRequest(cu, line, character);
	SignatureHelpParams position = getParams(payload);
	return handler.signatureHelp(position, monitor);
}
 

@Override
public SignatureHelp getSignatureHelp(Document document, XtextResource resource, SignatureHelpParams params, CancelIndicator cancelIndicator) {
	return EMPTY;
}
 

@Override
public CompletableFuture<SignatureHelp> signatureHelp(SignatureHelpParams params) {
	return requestManager.runRead((cancelIndicator) -> signatureHelp(params, cancelIndicator));
}
 

/**
 * The signature help request is sent from the client to the server to
 * request signature information at a given cursor position.
 * 
 * Registration Options: SignatureHelpRegistrationOptions
 */
@JsonRequest
default CompletableFuture<SignatureHelp> signatureHelp(SignatureHelpParams params) {
	throw new UnsupportedOperationException();
}
 

SignatureHelp getSignatureHelp(Document document, XtextResource resource, SignatureHelpParams params, CancelIndicator cancelIndicator);