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marcosh/Application.hs

Created June 14, 2018 13:20
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Web applications as profunctors
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Application.hs
module Application where
import Data.Profunctor
newtype Application request response = Application {unApplication :: request -> IO response}
instance Profunctor Application where
dimap actOnRequest actOnResponse application = Application $ (fmap actOnResponse) . (unApplication application) . actOnRequest
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