shithub: MicroHs

ref: 6a67714e02cd9cd49377591c39f03bb1f06814f7
dir: /lib/Control/Monad/Fail.hs/

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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 _ = []