monoid-record-0.1: Support for modifying record fields of monoidal type
Data.Monoid.Record
add :: Monoid m => (a -> m) -> (m -> a -> a) -> m -> a -> aSource
class Monoid m => Wrapper m a | m -> a whereSource
Methods
wrap :: a -> mSource
addP :: (b -> m) -> (m -> b -> b) -> a -> b -> bSource
Instances