module Data.Text.Class where import Prelude import Data.Text.Lazy (Text, pack, unpack) ------------------------------------------------------------------------ -- Type classes ------------------------------------------------------------------------ class ToText a where toText :: a -> Text class FromText a where fromText :: Text -> a class (ToText a, FromText a) => IsText a ------------------------------------------------------------------------ -- Instances ------------------------------------------------------------------------ instance ToText Text where toText = id instance FromText Text where fromText = id instance IsText Text --- instance ToText String where toText = pack instance FromText String where fromText = unpack instance IsText String