comonad-5.0.4: Comonads

Safe HaskellSafe
LanguageHaskell2010

Data.Functor.Composition

Synopsis

Documentation

class Composition o where Source #

We often need to distinguish between various forms of Functor-like composition in Haskell in order to please the type system. This lets us work with these representations uniformly.

Minimal complete definition

decompose, compose

Methods

decompose :: o f g x -> f (g x) Source #

compose :: f (g x) -> o f g x Source #

Instances
Composition (Compose :: (* -> *) -> (* -> *) -> * -> *) Source # 
Instance details

Defined in Data.Functor.Composition

Methods

decompose :: Compose f g x -> f (g x) Source #

compose :: f (g x) -> Compose f g x Source #