Data.Bifunctor

Documentation

class Bifunctor p where

Minimal definition either bimap or first and second

Methods

bimap :: (a -> b) -> (c -> d) -> p a c -> p b d

first :: (a -> b) -> p a c -> p b c

second :: (b -> c) -> p a b -> p a c

Instances

Bifunctor Either

Bifunctor (,)

Bifunctor Const

Bifunctor ((,,) x)

Bifunctor ((,,,) x y)

Bifunctor ((,,,,) x y z)