private bool TryGetTupleExpression(SignatureHelpTriggerReason triggerReason, SyntaxNode root, int position,
ISyntaxFactsService syntaxFacts, CancellationToken cancellationToken, out TupleExpressionSyntax tupleExpression)
{
return(CommonSignatureHelpUtilities.TryGetSyntax(root, position, syntaxFacts, triggerReason, IsTupleExpressionTriggerToken,
IsTupleArgumentListToken, cancellationToken, out tupleExpression));
}
internal static TextSpan GetSignatureHelpSpan(AttributeArgumentListSyntax argumentList) => CommonSignatureHelpUtilities.GetSignatureHelpSpan(argumentList, s_getAttributeArgumentListCloseToken);
private bool TryGetInitializerExpression(SyntaxNode root, int position, ISyntaxFactsService syntaxFacts, SignatureHelpTriggerReason triggerReason, CancellationToken cancellationToken, out InitializerExpressionSyntax expression) => CommonSignatureHelpUtilities.TryGetSyntax(root, position, syntaxFacts, triggerReason, IsTriggerToken, IsInitializerExpressionToken, cancellationToken, out expression) && expression != null;
internal static TextSpan GetSignatureHelpSpan(InitializerExpressionSyntax initializer) => CommonSignatureHelpUtilities.GetSignatureHelpSpan(initializer, initializer.SpanStart, s_getInitializerExpressionCloseToken);
