| Safe Haskell | Safe-Inferred |
|---|---|
| Language | GHC2021 |
Fold.Nonempty.Utilities
Synopsis
- duplicate :: NonemptyFold a b -> NonemptyFold a (Fold a b)
- premap :: (a -> b) -> NonemptyFold b r -> NonemptyFold a r
- nest :: Applicative f => NonemptyFold a b -> NonemptyFold (f a) (f b)
Documentation
duplicate :: NonemptyFold a b -> NonemptyFold a (Fold a b) Source #
Allows to continue feeding a fold even after passing it to a function that closes it
premap :: (a -> b) -> NonemptyFold b r -> NonemptyFold a r Source #
(premap f folder) returns a new fold where f is applied at each step
nest :: Applicative f => NonemptyFold a b -> NonemptyFold (f a) (f b) Source #
Nest a fold in an applicative