public IFunc <MyNullable <T>, MyNullable <U> > FMap <U>(IFunc <T, U> func)
{
return(new Function <MyNullable <T>, MyNullable <U> >(t =>
{
if (t.HasValue)
{
return new MyNullable <U>(func.Evaluate(t.Value));
}
else
{
return new MyNullable <U>();
}
}));
}
public IFunc <MyEnumerable <T>, MyEnumerable <U> > FMap <U>(IFunc <T, U> func)
{
return(new Function <MyEnumerable <T>, MyEnumerable <U> >(_t =>
{
List <U> u = new List <U>();
foreach (T t in _t)
{
u.Add(func.Evaluate(t));
}
return new MyEnumerable <U>(u);
}));
}