Safe Haskell	None
Language	Haskell2010

Fresnel.Prism

Contents

Synopsis

type Prism s t a b = forall p. IsPrism p => Optic p s t a b
type Prism' s a = Prism s s a a
class (IsIso p, Choice p) => IsPrism p
prism :: (b -> t) -> (s -> Either t a) -> Prism s t a b
prism' :: (b -> s) -> (s -> Maybe a) -> Prism s s a b
withPrism :: Prism s t a b -> ((b -> t) -> (s -> Either t a) -> r) -> r
matching :: Optional s t a b -> s -> Either t a
matching' :: Optional s t a b -> s -> Maybe a
is :: Optional s t a b -> s -> Bool
isn't :: Optional s t a b -> s -> Bool
only :: Eq a => a -> Prism' a ()
nearly :: a -> (a -> Bool) -> Prism' a ()
without :: Prism s1 t1 a1 b1 -> Prism s2 t2 a2 b2 -> Prism (Either s1 s2) (Either t1 t2) (Either a1 a2) (Either b1 b2)
below :: Traversable f => Prism' s a -> Prism' (f s) (f a)
aside :: Prism s t a b -> Prism (e, s) (e, t) (e, a) (e, b)
newtype UnpackedPrism a b s t = UnpackedPrism {
- withUnpackedPrism :: forall r. ((b -> t) -> (s -> Either t a) -> r) -> r
}
unpackedPrism :: (b -> t) -> (s -> Either t a) -> UnpackedPrism a b s t

Prisms

type Prism s t a b = forall p. IsPrism p => Optic p s t a b Source #

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

class (IsIso p, Choice p) => IsPrism p Source #

Instances details

Monad m => IsPrism (Kleisli m) Source #
Instance details Defined in Fresnel.Prism.Internal
Functor f => IsPrism (OptionalStar f) Source #
Instance details Defined in Fresnel.Prism.Internal
IsPrism (Recall e) Source #
Instance details Defined in Fresnel.Prism.Internal
IsPrism ((->) :: Type -> Type -> Type) Source #
Instance details Defined in Fresnel.Prism.Internal
Monoid r => IsPrism (Forget r :: Type -> Type -> Type) Source #
Instance details Defined in Fresnel.Prism.Internal
Applicative f => IsPrism (Star f) Source #
Instance details Defined in Fresnel.Prism.Internal
IsPrism (UnpackedOptional a b) Source #
Instance details Defined in Fresnel.Optional
IsPrism (UnpackedPrism a b) Source #
Instance details Defined in Fresnel.Prism

Construction

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

prism' :: (b -> s) -> (s -> Maybe a) -> Prism s s a b Source #

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

is :: Optional s t a b -> s -> Bool Source #

only :: Eq a => a -> Prism' a () Source #

nearly :: a -> (a -> Bool) -> Prism' a () Source #

without :: Prism s1 t1 a1 b1 -> Prism s2 t2 a2 b2 -> Prism (Either s1 s2) (Either t1 t2) (Either a1 a2) (Either b1 b2) Source #

aside :: Prism s t a b -> Prism (e, s) (e, t) (e, a) (e, b) Source #

Constructors

UnpackedPrism
Fields withUnpackedPrism :: forall r. ((b -> t) -> (s -> Either t a) -> r) -> r

Instances details

Choice (UnpackedPrism a b) Source #
Instance details Defined in Fresnel.Prism Methods left' :: UnpackedPrism a b a0 b0 -> UnpackedPrism a b (Either a0 c) (Either b0 c) right' :: UnpackedPrism a b a0 b0 -> UnpackedPrism a b (Either c a0) (Either c b0)
Profunctor (UnpackedPrism a b) Source #
Instance details Defined in Fresnel.Prism Methods dimap :: (a0 -> b0) -> (c -> d) -> UnpackedPrism a b b0 c -> UnpackedPrism a b a0 d lmap :: (a0 -> b0) -> UnpackedPrism a b b0 c -> UnpackedPrism a b a0 c rmap :: (b0 -> c) -> UnpackedPrism a b a0 b0 -> UnpackedPrism a b a0 c (#.) :: forall a0 b0 c q. Coercible c b0 => q b0 c -> UnpackedPrism a b a0 b0 -> UnpackedPrism a b a0 c (.#) :: forall a0 b0 c q. Coercible b0 a0 => UnpackedPrism a b b0 c -> q a0 b0 -> UnpackedPrism a b a0 c
IsIso (UnpackedPrism a b) Source #
Instance details Defined in Fresnel.Prism
IsPrism (UnpackedPrism a b) Source #
Instance details Defined in Fresnel.Prism
Functor (UnpackedPrism a b s) Source #
Instance details Defined in Fresnel.Prism Methods fmap :: (a0 -> b0) -> UnpackedPrism a b s a0 -> UnpackedPrism a b s b0 # (<$) :: a0 -> UnpackedPrism a b s b0 -> UnpackedPrism a b s a0 #

unpackedPrism :: (b -> t) -> (s -> Either t a) -> UnpackedPrism a b s t Source #