Copyright  (c) Ross Paterson 2010 

License  BSDstyle (see the file LICENSE) 
Maintainer  libraries@haskell.org 
Stability  experimental 
Portability  portable 
Safe Haskell  Safe 
Language  Haskell2010 
Composition of functors.
Since: 4.9.0.0
 newtype Compose f g a = Compose {
 getCompose :: f (g a)
Documentation
newtype Compose f g a infixr 9 Source #
Righttoleft composition of functors. The composition of applicative functors is always applicative, but the composition of monads is not always a monad.
Compose infixr 9  

(Functor f, Functor g) => Functor (Compose * * f g) #  
(Applicative f, Applicative g) => Applicative (Compose * * f g) #  
(Foldable f, Foldable g) => Foldable (Compose * * f g) #  
(Traversable f, Traversable g) => Traversable (Compose * * f g) #  
Functor f => Generic1 (Compose * * f g) #  
(Alternative f, Applicative g) => Alternative (Compose * * f g) #  
(Show1 f, Show1 g) => Show1 (Compose * * f g) #  
(Read1 f, Read1 g) => Read1 (Compose * * f g) #  
(Ord1 f, Ord1 g) => Ord1 (Compose * * f g) #  
(Eq1 f, Eq1 g) => Eq1 (Compose * * f g) #  
(Eq1 f, Eq1 g, Eq a) => Eq (Compose * * f g a) #  
(Data (f (g a)), Typeable k1 a, Typeable * k, Typeable * k1, Typeable (k > *) f, Typeable (k1 > k) g) => Data (Compose k k1 f g a) #  
(Ord1 f, Ord1 g, Ord a) => Ord (Compose * * f g a) #  
(Read1 f, Read1 g, Read a) => Read (Compose * * f g a) #  
(Show1 f, Show1 g, Show a) => Show (Compose * * f g a) #  
Generic (Compose k k1 f g a) #  
type Rep1 (Compose * * f g) #  
type Rep (Compose k k1 f g a) #  