Add MonadMask instance for Handler

This commit is contained in:
Moritz Kiefer 2018-11-03 21:41:23 +01:00
parent 58ccae1ca0
commit 95e66fa398

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@ -11,7 +11,7 @@ import Prelude.Compat
import Control.Monad.Base import Control.Monad.Base
(MonadBase (..)) (MonadBase (..))
import Control.Monad.Catch import Control.Monad.Catch
(MonadCatch, MonadThrow) (MonadCatch, MonadMask, MonadThrow)
import Control.Monad.Error.Class import Control.Monad.Error.Class
(MonadError) (MonadError)
import Control.Monad.IO.Class import Control.Monad.IO.Class
@ -29,7 +29,7 @@ newtype Handler a = Handler { runHandler' :: ExceptT ServantErr IO a }
deriving deriving
( Functor, Applicative, Monad, MonadIO, Generic ( Functor, Applicative, Monad, MonadIO, Generic
, MonadError ServantErr , MonadError ServantErr
, MonadThrow, MonadCatch , MonadThrow, MonadCatch, MonadMask
) )
instance MonadBase IO Handler where instance MonadBase IO Handler where