lens-4.15.4: Lenses, Folds and Traversals

Copyright(C) 2012-2016 Edward Kmett
LicenseBSD-style (see the file LICENSE)
MaintainerEdward Kmett <ekmett@gmail.com>
Stabilityprovisional
Portabilitynon-portable
Safe HaskellSafe
LanguageHaskell98

Control.Lens.Internal.Setter

Contents

Description

 

Synopsis

Setters

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

Anything Settable must be isomorphic to the Identity Functor.

Minimal complete definition

untainted

Methods

untainted :: f a -> a Source #

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

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

Instances

Settable Identity Source #

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

Methods

untainted :: Identity a -> a Source #

untaintedDot :: Profunctor p => p a (Identity b) -> p a b Source #

taintedDot :: Profunctor p => p a b -> p a (Identity b) Source #

Settable f => Settable (Backwards * f) Source #

backwards

Methods

untainted :: Backwards * f a -> a Source #

untaintedDot :: Profunctor p => p a (Backwards * f b) -> p a b Source #

taintedDot :: Profunctor p => p a b -> p a (Backwards * f b) Source #

(Settable f, Settable g) => Settable (Compose * * f g) Source # 

Methods

untainted :: Compose * * f g a -> a Source #

untaintedDot :: Profunctor p => p a (Compose * * f g b) -> p a b Source #

taintedDot :: Profunctor p => p a b -> p a (Compose * * f g b) Source #