-- | This small library defines data types 'Tup1', 'Tup2' ... 'Tup9' for homogeneous tuples of small size (both strict and lazy), -- and various instances for them, most notably 'Functor' and 'Applicative'. We also have a 'Tup' type class: -- -- > class Tup f where -- > tupSize :: f a -> Int -- > tupToList :: f a -> [a] -- > tupFromList :: [a] -> f a -- > tupProxy :: f a -> Proxy a -- > ... -- -- Also included is a very simple preprocesszor @tuplepp@ which translates -- the syntax @\{\{a,b,c\}\}@ into @(Tup3 a b c)@. -- -- A different implementation is also given in the module "Data.Tup.Vec"; this basically implements -- lists which encode their length in their types. For this, just replace 'Tup' by 'Vec' everywhere. -- The same instances and functions are provided. -- -- A third implementation is in "Data.Tup.Newtype"; here the tuples are newtypes of Haskell tuples. -- Just replace 'Tup' by 'NTup'. -- module Data.Tup ( module Data.Tup.Tup ) where import Control.Applicative ( Applicative ) -- only for Haddock import Data.Tup.Tup