-- Hoogle documentation, generated by Haddock
-- See Hoogle, http://www.haskell.org/hoogle/


-- | Van Laarhoven lenses
--   
--   Van Laarhoven lenses
@package lenz
@version 0.1

module Data.Lens
type Lens α β a b = Refractor ((~) (->)) Functor α β a b
lens :: (α -> a) -> (b -> α -> β) -> Lens α β a b
iso :: (α -> a) -> (b -> β) -> Lens α β a b
get :: Lens α β a b -> α -> a
set :: Lens α β a b -> b -> α -> β
modify :: Lens α β a b -> (a -> b) -> α -> β
fstL :: Lens (a, c) (b, c) a b
sndL :: Lens (a, b) (a, c) b c
swapL :: Lens (a, b) (c, d) (b, a) (d, c)