Data.Generics.Internal.VL

Documentation

type Lens' s a = Lens s s a a

Type alias for lens

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

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

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

Getting

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

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

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

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

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

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

data Exchange a b s t

Constructors

Exchange (s -> a) (b -> t)

Instances

Profunctor (Exchange a b)

Defined in Data.Generics.Internal.VL.Iso

Methods

dimap :: (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)

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

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

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

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

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)

A type and its generic representation are isomorphic

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

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

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

M1 is just a wrapper around `f p`

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

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

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

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

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

Type alias for prism

type Prism' s a = Prism s s a a

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

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

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

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

data Market a b s t

Constructors

Market (b -> t) (s -> Either t a)

Instances

Choice (Market a b)

Defined in Data.Generics.Internal.VL.Prism

Methods

left' :: 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)

Defined in Data.Generics.Internal.VL.Prism

Methods

dimap :: (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)

Defined in Data.Generics.Internal.VL.Prism

Methods

fmap :: (a0 -> b0) -> Market a b s a0 -> Market a b s b0

(<$) :: a0 -> Market a b s b0 -> Market a b s a0

module Data.Generics.Internal.VL.Traversal