Deriving arbitrary functions in Haskell
When working with derived instances in Haskell, is it possible to derive functions for arbitrary types, or are we restricted to particular functions? ...
derived-instances
How does deriving work in Haskell?
ADTs in Haskell can automatically become instance of some typeclasses (like Show, Eq) by deriving from them. data Maybe a = Nothing | Just a deriving (Eq, Ord) My question is, how does this deriving work, i.e. how does Haskell know how to implement the functions of the derived typeclass for the deriving ADT? Also, why is derivi...