module Control.Joint.Base.Maybe where import Control.Joint.Composition (Composition (Primary, unwrap)) import Control.Joint.Transformer (Transformer (Schema, lay, wrap)) import Control.Joint.Schemes.UT (UT (UT)) instance Composition Maybe where type Primary Maybe a = Maybe a unwrap x = x instance Transformer Maybe where type Schema Maybe u = UT Maybe u lay x = UT $ Just <$> x wrap x = UT . pure $ x