| Safe Haskell | Safe-Inferred |
|---|---|
| Language | Haskell2010 |
Control.Lens.Profunctor
Description
This module provides conversion functions between the optics defined in
this library and Profunctor-based optics.
The goal of these functions is to provide an interoperability layer between
the two styles of optics, and not to reimplement all the library in terms of
Profunctor optics.
Synopsis
- type OpticP p s t a b = p a b -> p s t
- fromLens :: Strong p => LensLike (Context a b) s t a b -> OpticP p s t a b
- fromIso :: Profunctor p => Optic p Identity s t a b -> OpticP p s t a b
- fromPrism :: Choice p => Optic p Identity s t a b -> OpticP p s t a b
- fromSetter :: Mapping p => ASetter s t a b -> OpticP p s t a b
- fromTraversal :: Traversing p => ATraversal s t a b -> OpticP p s t a b
- toLens :: Functor f => OpticP (Star f) s t a b -> LensLike f s t a b
- toIso :: (Profunctor p, Functor f) => OpticP (WrappedPafb f p) s t a b -> Optic p f s t a b
- toPrism :: (Choice p, Applicative f) => OpticP (WrappedPafb f p) s t a b -> Optic p f s t a b
- toSetter :: Settable f => OpticP (Star f) s t a b -> LensLike f s t a b
- toTraversal :: Applicative f => OpticP (Star f) s t a b -> LensLike f s t a b
Profunctor optic
Conversion from Van Laarhoven optics
fromLens :: Strong p => LensLike (Context a b) s t a b -> OpticP p s t a b Source #
Converts a Lens to a Profunctor-based one.
fromLens::Lenss t a b -> LensP s t a b
fromIso :: Profunctor p => Optic p Identity s t a b -> OpticP p s t a b Source #
Converts a Iso to a Profunctor-based one.
fromIso::Isos t a b -> IsoP s t a b
fromPrism :: Choice p => Optic p Identity s t a b -> OpticP p s t a b Source #
Converts a Prism to a Profunctor-based one.
fromPrism::Prisms t a b -> PrismP s t a b
fromSetter :: Mapping p => ASetter s t a b -> OpticP p s t a b Source #
Converts a Setter to a Profunctor-based one.
fromSetter::Setters t a b -> SetterP s t a b
fromTraversal :: Traversing p => ATraversal s t a b -> OpticP p s t a b Source #
Converts a Traversal to a Profunctor-based one.
fromTraversal::Traversals t a b -> TraversalP s t a b
Conversion to Van Laarhoven optics
toLens :: Functor f => OpticP (Star f) s t a b -> LensLike f s t a b Source #
Obtain a Lens from a Profunctor-based one.
toLens:: LensP s t a b ->Lenss t a b
toIso :: (Profunctor p, Functor f) => OpticP (WrappedPafb f p) s t a b -> Optic p f s t a b Source #
Obtain a Iso from a Profunctor-based one.
toIso:: IsoP s t a b ->Isos t a b
toPrism :: (Choice p, Applicative f) => OpticP (WrappedPafb f p) s t a b -> Optic p f s t a b Source #
Obtain a Prism from a Profunctor-based one.
toPrism:: PrismP s t a b ->Prisms t a b
toSetter :: Settable f => OpticP (Star f) s t a b -> LensLike f s t a b Source #
Obtain a Setter from a Profunctor-based one.
toSetter:: SetterP s t a b ->Setters t a b
toTraversal :: Applicative f => OpticP (Star f) s t a b -> LensLike f s t a b Source #
Obtain a Traversal from a Profunctor-based one.
toTraversal:: TraversalP s t a b ->Traversals t a b