generic-lens-2.0.0.0: Generically derive traversals, lenses and prisms.

Data.Generics.Internal.VL

Synopsis

# Documentation

type Lens' s a = Lens s s a a Source #

Type alias for lens

type Lens s t a b = forall f. Functor f => (a -> f b) -> s -> f t Source #

view :: ((a -> Const a a) -> s -> Const a s) -> s -> a Source #

(^.) :: s -> ((a -> Const a a) -> s -> Const a s) -> a infixl 8 Source #

Getting

(.~) :: ((a -> Identity b) -> s -> Identity t) -> b -> s -> t infixr 4 Source #

set :: Lens s t a b -> b -> s -> t Source #

over :: ((a -> Identity b) -> s -> Identity t) -> (a -> b) -> s -> t Source #

lens2lensvl :: ALens a b i s t -> Lens s t a b Source #

ravel :: (ALens a b i a b -> ALens a b i s t) -> Lens s t a b Source #

lens :: (s -> a) -> (s -> b -> t) -> Lens s t a b Source #

data Exchange a b s t Source #

Constructors

 Exchange (s -> a) (b -> t)
Instances
 Profunctor (Exchange a b) Source # Instance detailsDefined in Data.Generics.Internal.VL.Iso Methodsdimap :: (a0 -> b0) -> (c -> d) -> Exchange a b b0 c -> Exchange a b a0 d #lmap :: (a0 -> b0) -> Exchange a b b0 c -> Exchange a b a0 c #rmap :: (b0 -> c) -> Exchange a b a0 b0 -> Exchange a b a0 c #(#.) :: Coercible c b0 => q b0 c -> Exchange a b a0 b0 -> Exchange a b a0 c #(.#) :: Coercible b0 a0 => Exchange a b b0 c -> q a0 b0 -> Exchange a b a0 c #

type Iso' s a = forall p f. (Profunctor p, Functor f) => p a (f a) -> p s (f s) Source #

type Iso s t a b = forall p f. (Profunctor p, Functor f) => p a (f b) -> p s (f t) Source #

fromIso :: Iso s t a b -> Iso b a t s Source #

iso2isovl :: Iso s t a b -> Iso s t a b Source #

withIso :: Iso s t a b -> ((s -> a) -> (b -> t) -> r) -> r Source #

Extract the two functions, one from s -> a and one from b -> t that characterize an Iso.

repIso :: (Generic a, Generic b) => Iso a b (Rep a x) (Rep b x) Source #

A type and its generic representation are isomorphic

repIsoN :: (GenericN a, GenericN b) => Iso a b (RepN a x) (RepN b x) Source #

paramIso :: Iso (Param n a) (Param n b) a b Source #

mIso :: Iso (M1 i c f p) (M1 i c g p) (f p) (g p) Source #

M1 is just a wrapper around f p

kIso :: Iso (K1 r a p) (K1 r b p) a b Source #

recIso :: Iso (Rec r a p) (Rec r b p) a b Source #

prodIso :: Iso ((a :*: b) x) ((a' :*: b') x) (a x, b x) (a' x, b' x) Source #

iso :: (s -> a) -> (b -> t) -> Iso s t a b Source #

type Prism s t a b = forall p f. (Choice p, Applicative f) => p a (f b) -> p s (f t) Source #

Type alias for prism

type Prism' s a = Prism s s a a Source #

match :: Prism s t a b -> s -> Either t a Source #

build :: Prism s t a b -> b -> t Source #

prism :: (b -> t) -> (s -> Either t a) -> Prism s t a b Source #

prism2prismvl :: APrism i s t a b -> Prism s t a b Source #

data Market a b s t Source #

Constructors

 Market (b -> t) (s -> Either t a)
Instances
 Choice (Market a b) Source # Instance detailsDefined in Data.Generics.Internal.VL.Prism Methodsleft' :: Market a b a0 b0 -> Market a b (Either a0 c) (Either b0 c) #right' :: Market a b a0 b0 -> Market a b (Either c a0) (Either c b0) # Profunctor (Market a b) Source # Instance detailsDefined in Data.Generics.Internal.VL.Prism Methodsdimap :: (a0 -> b0) -> (c -> d) -> Market a b b0 c -> Market a b a0 d #lmap :: (a0 -> b0) -> Market a b b0 c -> Market a b a0 c #rmap :: (b0 -> c) -> Market a b a0 b0 -> Market a b a0 c #(#.) :: Coercible c b0 => q b0 c -> Market a b a0 b0 -> Market a b a0 c #(.#) :: Coercible b0 a0 => Market a b b0 c -> q a0 b0 -> Market a b a0 c # Functor (Market a b s) Source # Instance detailsDefined in Data.Generics.Internal.VL.Prism Methodsfmap :: (a0 -> b0) -> Market a b s a0 -> Market a b s b0 #(<\$) :: a0 -> Market a b s b0 -> Market a b s a0 #