diff options
Diffstat (limited to 'src/Storage.hs')
| -rw-r--r-- | src/Storage.hs | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/Storage.hs b/src/Storage.hs index f73c420..8bf8802 100644 --- a/src/Storage.hs +++ b/src/Storage.hs @@ -54,6 +54,7 @@ import Codec.Compression.Zlib import qualified Codec.MIME.Type as MIME import qualified Codec.MIME.Parse as MIME +import Control.Applicative import Control.Arrow import Control.Concurrent import Control.DeepSeq @@ -520,7 +521,7 @@ evalStore _ StoreZero = return ZeroObject type StoreRec c = ReaderT (Storage' c) (Writer [IO [(ByteString, RecItem' c)]]) () newtype Load a = Load (ReaderT (Ref, Object) (Either String) a) - deriving (Functor, Applicative, Monad, MonadReader (Ref, Object), MonadError String) + deriving (Functor, Applicative, Alternative, Monad, MonadPlus, MonadReader (Ref, Object), MonadError String) type LoadRec a = ReaderT (Ref, [(ByteString, RecItem)]) (Either String) a |