| Safe Haskell | Safe-Inferred |
|---|---|
| Language | Haskell2010 |
Control.Applicative.Monoid
Description
This module defines the AlternativeMonoid class
Documentation
class Applicative f => MonoidApplicative f where Source
Minimal complete definition
Nothing
Methods
(><) :: Monoid a => f a -> f a -> f a infixl 5 Source
Lifted and potentially optimized monoid mappend operation from the parameter type.
Instances
| Monoid s => MonoidApplicative (Parser a s) |
class (Alternative f, MonoidApplicative f) => MonoidAlternative f where Source
Minimal complete definition
Nothing
Methods
moptional :: Monoid a => f a -> f a Source
Like optional, but restricted to Monoid results.
concatMany :: Monoid a => f a -> f a Source
Zero or more argument occurrences like many, but concatenated.
concatSome :: Monoid a => f a -> f a Source
One or more argument occurrences like some, but concatenated.
Instances
| (Alternative (Parser a s), Monoid s) => MonoidAlternative (Parser a s) |