| Copyright | (c) Edward Kmett 2009-2011 |
|---|---|
| License | BSD-style |
| Maintainer | ekmett@gmail.com |
| Stability | experimental |
| Portability | non-portable (MPTCs) |
| Safe Haskell | Trustworthy |
| Language | Haskell98 |
Data.Semigroup.Alternative
Description
A semigroup for working with Alternative Functors.
- newtype Alternate f a = Alternate {
- getAlternate :: f a
Documentation
A Alternate turns any Alternative instance into a Monoid.
Constructors
| Alternate | |
Fields
| |
Instances
| Alternative f => Alternative (Alternate f) | |
| Functor f => Functor (Alternate f) | |
| Applicative f => Applicative (Alternate f) | |
| Alternative f => Reducer (f a) (Alternate f a) | |
| Alternative f => Monoid (Alternate f a) | |
| Alternative f => Semigroup (Alternate f a) |