transformers-0.3.0.0: Concrete functor and monad transformers

Portabilityportable
Stabilityexperimental
Maintainerlibraries@haskell.org
Safe HaskellSafe-Inferred

Control.Applicative.Backwards

Description

Making functors with an Applicative instance that performs actions in the reverse order.

Synopsis

Documentation

newtype Backwards f a Source

The same functor, but with an Applicative instance that performs actions in the reverse order.

Constructors

Backwards 

Fields

forwards :: f a
 

Instances

Functor f => Functor (Backwards f)

Derived instance.

Applicative f => Applicative (Backwards f)

Apply f-actions in the reverse order.

Foldable f => Foldable (Backwards f)

Derived instance.

Traversable f => Traversable (Backwards f)

Derived instance.

Alternative f => Alternative (Backwards f)

Try alternatives in the same order as f.