Network.AWS.ARN.Internal.Lens

Reimplement a few lens types and combinators to keep the dependency footprint down.

Documentation

type Lens' s a = forall f. Functor f => (a -> f a) -> s -> f s

type Setter s a = (a -> Identity a) -> s -> Identity s

set :: Setter s a -> a -> s -> s

over :: Setter s a -> (a -> a) -> s -> s

type Prism' s a = forall p f. (Choice p, Applicative f) => p a (f a) -> p s (f s)

prism' :: forall s a. (a -> s) -> (s -> Maybe a) -> Prism' s a

preview :: Prism' s a -> s -> Maybe a

review :: Prism' s a -> a -> s

(^?) :: s -> Prism' s a -> Maybe a infixl 8