public override Argument VisitConstantExpression(CalcParser.ConstantExpressionContext context)
{
if (context.ConstE() != null)
{
return(new Argument(Math.E));
}
if (context.ConstPi() != null)
{
return(new Argument(Math.PI));
}
throw new ExpressionException("Unknown constant: " + context.GetText());
}
public override Query VisitConstantExpression(CalcParser.ConstantExpressionContext context)
{
Argument arg = null;
if (context.ConstE() != null)
{
arg = new Argument(Math.E);
}
if (context.ConstPi() != null)
{
arg = new Argument(Math.PI);
}
if (arg == null)
{
throw new ExpressionException("Unknown constant: " + context.GetText());
}
return(new Query(arg.ToString(), ResultType.Number));
}