NFData instances

1 files changed, 7 insertions, 3 deletions

diff --git a/spec/src/Thermoprint/Identifiers.hs b/spec/src/Thermoprint/Identifiers.hs
index ee35e24..0d6f56a 100644
--- a/spec/src/Thermoprint/Identifiers.hs
+++ b/spec/src/Thermoprint/Identifiers.hs
@@ -8,17 +8,21 @@ module Thermoprint.Identifiers
        , castId
        ) where
 
+import Data.Typeable (Typeable)
+import GHC.Generics (Generic)
+import Control.DeepSeq (NFData)
+
 import Servant.API (ToText, FromText)
 import Data.Aeson (FromJSON, ToJSON)
 
 newtype PrinterId = PrinterId Integer
-                  deriving (Show, Read, Eq, Ord, Num, Real, Integral, Enum, FromText, ToText, FromJSON, ToJSON)
+                  deriving (Show, Read, Eq, Ord, Num, Real, Integral, Enum, FromText, ToText, FromJSON, ToJSON, Typeable, Generic, NFData)
 
 newtype JobId = JobId Integer
-              deriving (Show, Read, Eq, Ord, Num, Real, Integral, Enum, FromText, ToText, FromJSON, ToJSON)
+              deriving (Show, Read, Eq, Ord, Num, Real, Integral, Enum, FromText, ToText, FromJSON, ToJSON, Typeable, Generic, NFData)
 
 newtype DraftId = DraftId Integer
-              deriving (Show, Read, Eq, Ord, Num, Real, Integral, Enum, FromText, ToText, FromJSON, ToJSON)
+              deriving (Show, Read, Eq, Ord, Num, Real, Integral, Enum, FromText, ToText, FromJSON, ToJSON, Typeable, Generic, NFData)
 
 castId :: (Integral a, Enum b) => a -> b
 castId = toEnum . fromInteger . toInteger