Control.Lens.Internal.Setter

Setters

class (Applicative f, Distributive f, Traversable f) => Settable f where

Anything Settable must be isomorphic to the Identity Functor.

Minimal complete definition

untainted

Methods

untainted :: f a -> a

untaintedDot :: Profunctor p => p a (f b) -> p a b

taintedDot :: Profunctor p => p a b -> p a (f b)

Instances

Settable Identity

So you can pass our Setter into combinators from other lens libraries.

Settable f => Settable (Backwards f)

backwards

(Settable f, Settable g) => Settable (Compose f g)