private ArithFunction GetArithFunction(Literal l)
{
ArithFunction af = null;
if (curAg != null)
{
// try to find the function in agent register
af = curAg.GetFunction(l.GetFunctor(), l.GetArity());
}
if (af == null)
{
// try global function
af = FunctionRegister.GetFunction(l.GetFunctor(), l.GetArity());
}
return(af);
}
public ArithFunction GetFunction(string function, int arity)
{
if (functions == null)
{
return(null);
}
ArithFunction af;
functions.TryGetValue(function, out af);
if (af == null || !af.CheckArity(arity))
{
af = FunctionRegister.GetFunction(function, arity);
}
if (af != null && af.CheckArity(arity))
{
return(af);
}
else
{
return(null);
}
}
