public PatternUst VisitLiteral(DslParser.LiteralContext context)
{
PatternUst result;
var textSpan = context.GetTextSpan();
if (context.Id() != null)
{
result = ProcessId(context.Id());
}
else if (context.String() != null)
{
result = new PatternStringLiteral(RemoveQuotes(context.GetText()), textSpan);
}
else if (context.Oct() != null)
{
result = new PatternIntLiteral(
System.Convert.ToInt64(context.Oct().GetText(), 8), textSpan);
}
else if (context.Int() != null)
{
string text = context.Int().GetText();
if (long.TryParse(text, out long longValue))
{
result = new PatternIntLiteral(longValue, textSpan);
}
else
{
result = new PatternBigIntLiteral(longValue, textSpan);
}
}
else if (context.Hex() != null)
{
result = new PatternIntLiteral(
System.Convert.ToInt64(context.Hex().GetText(), 16), textSpan);
}
else if (context.Bool() != null)
{
result = new PatternBooleanLiteral(bool.Parse(context.Bool().GetText()), textSpan);
}
else if (context.Null() != null)
{
result = new PatternNullLiteral(textSpan);
}
else
{
throw new NotImplementedException();
}
return(result);
}
public virtual T Visit(PatternNullLiteral patternNullLiteral)
{
return(VisitChildren(patternNullLiteral));
}