shithub: MicroHs

ref: 1cf6dce4c28d3020699d04d8c2b98280c298e109
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 _ = []