Portability | non-portable |
---|---|
Stability | provisional |
Maintainer | Edward Kmett <ekmett@gmail.com> |
Safe Haskell | Trustworthy |
Actions
class (Monad m, Gettable f) => Effective m r f | f -> m r whereSource
An Effective
Functor
ignores its argument and is isomorphic to a Monad
wrapped around a value.
That said, the Monad
is possibly rather unrelated to any Applicative
structure.
ineffective :: f a -> m rSource
Wrap a monadic effect with a phantom type argument.
(Gettable (Effect m r), Monad m) => Effective m r (Effect m r) | |
Functor (Effect m r) | |
(Functor (Effect m r), Monad m, Monoid r) => Applicative (Effect m r) | |
(Functor (Effect m r), Apply m, Semigroup r) => Apply (Effect m r) | |
Functor (Effect m r) => Gettable (Effect m r) | |
(Monad m, Monoid r) => Monoid (Effect m r a) | |
(Apply m, Semigroup r) => Semigroup (Effect m r a) |