shithub: MicroHs

ref: 51f905138babfc67f3291a40c8b5ddd7ec85b73d
dir: /lib/Control/Monad/Fail.hs/

View raw version 
module Control.Monad.Fail(MonadFail(..)) where
import Prelude()              -- do not import Prelude
import Primitives
import Control.Applicative
import Control.Error
import Control.Monad
import Data.Char
import Data.List_Type

class Monad m => MonadFail m where
  fail :: forall a . String -> m a
  fail = error

instance MonadFail [] where
  fail _ = []