module Control.Comonad.Traced.Class
( ComonadTraced(..)
, traces
) where
import Control.Comonad
import Control.Comonad.Trans.Class
import qualified Control.Comonad.Trans.Env.Strict as Strict
import qualified Control.Comonad.Trans.Store.Strict as Strict
import qualified Control.Comonad.Trans.Discont.Strict as Strict
import qualified Control.Comonad.Trans.Env.Lazy as Lazy
import qualified Control.Comonad.Trans.Store.Lazy as Lazy
import qualified Control.Comonad.Trans.Discont.Lazy as Lazy
import qualified Control.Comonad.Trans.Traced as Simple
import qualified Control.Comonad.Trans.Traced.Memo as Memo
import qualified Control.Comonad.Trans.Store.Memo as Memo
import qualified Control.Comonad.Trans.Discont.Memo as Memo
import Control.Comonad.Trans.Identity
import Data.Monoid
import Data.Semigroup
class Comonad w => ComonadTraced m w | w -> m where
trace :: m -> w a -> a
traces :: ComonadTraced m w => (a -> m) -> w a -> a
traces f wa = trace (f (extract wa)) wa
instance (Comonad w, Semigroup m, Monoid m) => ComonadTraced m (Simple.TracedT m w) where
trace = Simple.trace
instance (Comonad w, Monoid m) => ComonadTraced m (Memo.TracedT m w) where
trace = Memo.trace
lowerTrace :: (ComonadTrans t, ComonadTraced m w) => m -> t w a -> a
lowerTrace m = trace m . lower
instance ComonadTraced m w => ComonadTraced m (IdentityT w) where
trace = lowerTrace
instance ComonadTraced m w => ComonadTraced m (Strict.EnvT e w) where
trace = lowerTrace
instance ComonadTraced m w => ComonadTraced m (Strict.DiscontT k w) where
trace = lowerTrace
instance ComonadTraced m w => ComonadTraced m (Strict.StoreT s w) where
trace = lowerTrace
instance ComonadTraced m w => ComonadTraced m (Lazy.EnvT e w) where
trace = lowerTrace
instance ComonadTraced m w => ComonadTraced m (Lazy.DiscontT k w) where
trace = lowerTrace
instance ComonadTraced m w => ComonadTraced m (Lazy.StoreT s w) where
trace = lowerTrace
instance ComonadTraced m w => ComonadTraced m (Memo.DiscontT k w) where
trace = lowerTrace
instance ComonadTraced m w => ComonadTraced m (Memo.StoreT s w) where
trace = lowerTrace