Safe Haskell	Safe
Language	Haskell98

Data.Bifunctor.Functor

Synopsis

type (:->) p q = forall a b. p a b -> q a b
class BifunctorFunctor t where
- bifmap :: (p :-> q) -> t p :-> t q
class BifunctorFunctor t => BifunctorMonad t where
- bireturn :: p :-> t p
- bibind :: (p :-> t q) -> t p :-> t q
- bijoin :: t (t p) :-> t p
biliftM :: BifunctorMonad t => (p :-> q) -> t p :-> t q
class BifunctorFunctor t => BifunctorComonad t where
- biextract :: t p :-> p
- biextend :: (t p :-> q) -> t p :-> t q
- biduplicate :: t p :-> t (t p)
biliftW :: BifunctorComonad t => (p :-> q) -> t p :-> t q

Documentation

type (:->) p q = forall a b. p a b -> q a b infixr 0 #

Using parametricity as an approximation of a natural transformation in two arguments.

Methods

bifmap :: (p :-> q) -> t p :-> t q #

Instances

BifunctorFunctor (Flip :: (k2 -> k1 -> Type) -> k1 -> k2 -> Type) #
Instance details Defined in Data.Bifunctor.Flip Methods bifmap :: (p :-> q) -> Flip p :-> Flip q #
BifunctorFunctor (Product p :: (k1 -> k2 -> Type) -> k1 -> k2 -> Type) #
Instance details Defined in Data.Bifunctor.Product Methods bifmap :: (p0 :-> q) -> Product p p0 :-> Product p q #
BifunctorFunctor (Sum p :: (k1 -> k2 -> Type) -> k1 -> k2 -> Type) #
Instance details Defined in Data.Bifunctor.Sum Methods bifmap :: (p0 :-> q) -> Sum p p0 :-> Sum p q #
Functor f => BifunctorFunctor (Tannen f :: (k1 -> k2 -> Type) -> k1 -> k2 -> Type) #
Instance details Defined in Data.Bifunctor.Tannen Methods bifmap :: (p :-> q) -> Tannen f p :-> Tannen f q #

Minimal complete definition

Methods

bibind :: (p :-> t q) -> t p :-> t q #

bijoin :: t (t p) :-> t p #

Instances

BifunctorMonad (Sum p :: (k1 -> k2 -> Type) -> k1 -> k2 -> Type) #
Instance details Defined in Data.Bifunctor.Sum Methods bireturn :: p0 :-> Sum p p0 # bibind :: (p0 :-> Sum p q) -> Sum p p0 :-> Sum p q # bijoin :: Sum p (Sum p p0) :-> Sum p p0 #
(Functor f, Monad f) => BifunctorMonad (Tannen f :: (k1 -> k2 -> Type) -> k1 -> k2 -> Type) #
Instance details Defined in Data.Bifunctor.Tannen Methods bireturn :: p :-> Tannen f p # bibind :: (p :-> Tannen f q) -> Tannen f p :-> Tannen f q # bijoin :: Tannen f (Tannen f p) :-> Tannen f p #

biliftM :: BifunctorMonad t => (p :-> q) -> t p :-> t q #

Minimal complete definition

Methods

biextend :: (t p :-> q) -> t p :-> t q #

biduplicate :: t p :-> t (t p) #

Instances

BifunctorComonad (Product p :: (k1 -> k2 -> Type) -> k1 -> k2 -> Type) #
Instance details Defined in Data.Bifunctor.Product Methods biextract :: Product p p0 :-> p0 # biextend :: (Product p p0 :-> q) -> Product p p0 :-> Product p q # biduplicate :: Product p p0 :-> Product p (Product p p0) #
Comonad f => BifunctorComonad (Tannen f :: (k1 -> k2 -> Type) -> k1 -> k2 -> Type) #
Instance details Defined in Data.Bifunctor.Tannen Methods biextract :: Tannen f p :-> p # biextend :: (Tannen f p :-> q) -> Tannen f p :-> Tannen f q # biduplicate :: Tannen f p :-> Tannen f (Tannen f p) #