Documentation

type Context n s t a b = ( GenericN s, GenericN t, Defined ( Rep s) ( NoGeneric s '[' Text "arising from a generic traversal of the type parameter at position " :<>: QuoteType n, ((' Text "of type " :<>: QuoteType a) :<>: ' Text " in ") :<>: QuoteType s]) (() :: Constraint ), s ~ Infer t ( P n b ' PTag ) a, t ~ Infer s ( P n a ' PTag ) b, Error ( ArgCount s <=? n) n ( ArgCount s) s, a ~ ArgAt s n, b ~ ArgAt t n, GHasTypes ChGeneric ( RepN s) ( RepN t) ( Param n a) ( Param n b)) Source #

derived :: forall n s t a b. Context n s t a b => Traversal s t a b Source #