module Control.Monad.Class.MonadSay where

import           Control.Monad.Reader
import qualified Data.ByteString.Char8 as BSC

class Monad m => MonadSay m where
  say :: String -> m ()

instance MonadSay IO where
  say :: String -> IO ()
say = ByteString -> IO ()
BSC.putStrLn forall b c a. (b -> c) -> (a -> b) -> a -> c
. String -> ByteString
BSC.pack

instance MonadSay m => MonadSay (ReaderT r m) where
  say :: String -> ReaderT r m ()
say = forall (t :: (* -> *) -> * -> *) (m :: * -> *) a.
(MonadTrans t, Monad m) =>
m a -> t m a
lift forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall (m :: * -> *). MonadSay m => String -> m ()
say