/// <summary>Performs evaluation of a function</summary>
/// <param name="caller">The tracking object calling the function</param>
/// <param name="name">The function name</param>
/// <param name="param">The function parameters</param>
/// <returns></returns>
public Val RunFunction(ITracker caller, string name, Val[] param)
{
IValFunc vfs = ValFuncs.Get(new Pair <string, int>(name, param.Length));
if (vfs == null)
{
if (ValFuncRef.Contains(name))
{
vfs = ValFuncs.Get(new Pair <string, int>(name, -1)); // Val[]
if (vfs == null)
{
throw new EvalException(caller, Resource.Strings.Error_EvalException_IncorrectParameters.F(name));
}
}
else
{
throw new EvalException(caller, Resource.Strings.Error_EvalException_FunctionNotFound.F(name));
}
}
return(vfs.Execute(caller, name, this, param));
}
/// <summary>Retrieves a function from the function list</summary>
/// <param name="name">The function name</param>
/// <param name="argnum">The number of arguments for the function</param>
/// <returns></returns>
public object GetFunction(string name, int argnum)
{
return(ValFuncs.Get(new Pair <string, int>(name, argnum)));
}