lens-4.19: 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
LanguageHaskell2010

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.

Instance details

Defined in Control.Lens.Internal.Setter

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

Instance details

Defined in Control.Lens.Internal.Setter

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 # 
Instance details

Defined in Control.Lens.Internal.Setter

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 #