protected override Variable Evaluate(ParsingScript script)
{
List <Variable> args = script.GetFunctionArgs();
script.MoveBackIf(Constants.START_GROUP);
if (args.Count != m_args.Length)
{
throw new ArgumentException("Function [" + m_name + "] arguments mismatch: " +
m_args.Length + " declared, " + args.Count + " supplied");
}
Variable result = Run(args);
return(result);
}