Basement.Compat.MonadTrans

Description

An internal and really simple monad transformers, without any bells and whistse.

Synopsis

Documentation

newtype State s m a #

Simple State monad

Constructors

State
Fields runState :: s -> m (a, s)

Instances

Monad m => Monad (State r m) #
Methods (>>=) :: State r m a -> (a -> State r m b) -> State r m b # (>>) :: State r m a -> State r m b -> State r m b # return :: a -> State r m a # fail :: String -> State r m a #
Monad m => Functor (State s m) #
Methods fmap :: (a -> b) -> State s m a -> State s m b # (<$) :: a -> State s m b -> State s m a #
Monad m => Applicative (State s m) #
Methods pure :: a -> State s m a # (<>) :: State s m (a -> b) -> State s m a -> State s m b # (>) :: State s m a -> State s m b -> State s m b # (<*) :: State s m a -> State s m b -> State s m a #

newtype Reader r m a #

Simple Reader monad

Constructors

Reader
Fields runReader :: r -> m a

Instances

Monad m => Monad (Reader r m) #
Methods (>>=) :: Reader r m a -> (a -> Reader r m b) -> Reader r m b # (>>) :: Reader r m a -> Reader r m b -> Reader r m b # return :: a -> Reader r m a # fail :: String -> Reader r m a #
Monad m => Functor (Reader r m) #
Methods fmap :: (a -> b) -> Reader r m a -> Reader r m b # (<$) :: a -> Reader r m b -> Reader r m a #
Monad m => Applicative (Reader r m) #
Methods pure :: a -> Reader r m a # (<>) :: Reader r m (a -> b) -> Reader r m a -> Reader r m b # (>) :: Reader r m a -> Reader r m b -> Reader r m b # (<*) :: Reader r m a -> Reader r m b -> Reader r m a #