Safe Haskell	Safe-Inferred
Language	Haskell2010

Data.Variant.VariantF

Contents

Algebras
Reexport

Description

VariantF functor

Synopsis

newtype VariantF (xs :: [t -> Type]) (e :: t) = VariantF (V (ApplyAll e xs))
type family ApplyAll (e :: t) (xs :: [t -> k]) :: [k] where ...
pattern FV :: forall c cs e. c :< ApplyAll e cs => c -> VariantF cs e
appendVariantF :: forall (ys :: [Type -> Type]) (xs :: [Type -> Type]) e. ApplyAll e (Concat xs ys) ~ Concat (ApplyAll e xs) (ApplyAll e ys) => VariantF xs e -> VariantF (Concat xs ys) e
prependVariantF :: forall (xs :: [Type -> Type]) (ys :: [Type -> Type]) e. (ApplyAll e (Concat xs ys) ~ Concat (ApplyAll e xs) (ApplyAll e ys), KnownNat (Length (ApplyAll e xs))) => VariantF ys e -> VariantF (Concat xs ys) e
toVariantFHead :: forall x xs e. x e -> VariantF (x ': xs) e
toVariantFTail :: forall x xs e. VariantF xs e -> VariantF (x ': xs) e
popVariantFHead :: forall x xs e. VariantF (x ': xs) e -> Either (VariantF xs e) (x e)
variantFToValue :: VariantF '[f] e -> f e
type MapVariantF a b cs ds e = (MapVariant (a e) (b e) (ApplyAll e cs), ds ~ ReplaceNS (IndexesOf a cs) b cs, ApplyAll e ds ~ ReplaceNS (IndexesOf (a e) (ApplyAll e cs)) (b e) (ApplyAll e cs))
mapVariantF :: forall a b cs ds e. MapVariantF a b cs ds e => (a e -> b e) -> VariantF cs e -> VariantF ds e
type PopVariantF x xs e = (x e :< ApplyAll e xs, Remove (x e) (ApplyAll e xs) ~ ApplyAll e (Remove x xs))
popVariantF :: forall x xs e. PopVariantF x xs e => VariantF xs e -> Either (VariantF (Remove x xs) e) (x e)
type LiftVariantF xs ys e = LiftVariant (ApplyAll e xs) (ApplyAll e ys)
liftVariantF :: forall as bs e. LiftVariantF as bs e => VariantF as e -> VariantF bs e
type SplitVariantF as xs e = (Complement (ApplyAll e xs) (ApplyAll e as) ~ ApplyAll e (Complement xs as), SplitVariant (ApplyAll e as) (ApplyAll e (Complement xs as)) (ApplyAll e xs))
splitVariantF :: forall as xs e. SplitVariantF as xs e => VariantF xs e -> Either (VariantF (Complement xs as) e) (VariantF as e)
variantFToCont :: ContVariant (ApplyAll e xs) => VariantF xs e -> ContFlow (ApplyAll e xs) r
variantFToContM :: (ContVariant (ApplyAll e xs), Monad m) => m (VariantF xs e) -> ContFlow (ApplyAll e xs) (m r)
contToVariantF :: forall xs e. ContVariant (ApplyAll e xs) => ContFlow (ApplyAll e xs) (V (ApplyAll e xs)) -> VariantF xs e
contToVariantFM :: forall xs e m. (ContVariant (ApplyAll e xs), Monad m) => ContFlow (ApplyAll e xs) (m (V (ApplyAll e xs))) -> m (VariantF xs e)
type family BottomUpF c fs :: Constraint where ...
class BottomUp c fs where
- toBottomUp :: (forall f. c f => f a -> b) -> VariantF fs a -> b
class BottomUpOrig c fs where
- toBottomUpOrig :: (forall f. c f => f (t, a) -> b) -> VariantF fs (t, a) -> b
type family BottomUpOrigF c fs :: Constraint where ...
class TopDownStop c fs where
- toTopDownStop :: (forall f. c f => TopDownStopT a f) -> TopDownStopT a (VariantF fs)
type family TopDownStopF c fs :: Constraint where ...
class NoConstraint a
module Data.Functor

Documentation

newtype VariantF (xs :: [t -> Type]) (e :: t) Source #

Recursive Functor-like Variant

Constructors

VariantF (V (ApplyAll e xs))

Instances

Instances details

(Eq1 f, Eq1 (VariantF fs), ConstraintAll1 Eq1 fs) => Eq1 (VariantF (f ': fs)) Source #
Instance details Defined in Data.Variant.VariantF Methods liftEq :: (a -> b -> Bool) -> VariantF (f ': fs) a -> VariantF (f ': fs) b -> Bool #
Eq1 (VariantF ('[] :: [Type -> Type])) Source #
Instance details Defined in Data.Variant.VariantF Methods liftEq :: (a -> b -> Bool) -> VariantF '[] a -> VariantF '[] b -> Bool #
(Ord1 f, Ord1 (VariantF fs), ConstraintAll1 Eq1 fs, ConstraintAll1 Ord1 fs) => Ord1 (VariantF (f ': fs)) Source #
Instance details Defined in Data.Variant.VariantF Methods liftCompare :: (a -> b -> Ordering) -> VariantF (f ': fs) a -> VariantF (f ': fs) b -> Ordering #
Ord1 (VariantF ('[] :: [Type -> Type])) Source #
Instance details Defined in Data.Variant.VariantF Methods liftCompare :: (a -> b -> Ordering) -> VariantF '[] a -> VariantF '[] b -> Ordering #
(Show1 f, Show1 (VariantF fs), ConstraintAll1 Show1 fs) => Show1 (VariantF (f ': fs)) Source #
Instance details Defined in Data.Variant.VariantF Methods liftShowsPrec :: (Int -> a -> ShowS) -> ([a] -> ShowS) -> Int -> VariantF (f ': fs) a -> ShowS # liftShowList :: (Int -> a -> ShowS) -> ([a] -> ShowS) -> [VariantF (f ': fs) a] -> ShowS #
Show1 (VariantF ('[] :: [Type -> Type])) Source #
Instance details Defined in Data.Variant.VariantF Methods liftShowsPrec :: (Int -> a -> ShowS) -> ([a] -> ShowS) -> Int -> VariantF '[] a -> ShowS # liftShowList :: (Int -> a -> ShowS) -> ([a] -> ShowS) -> [VariantF '[] a] -> ShowS #
(Functor (VariantF fs), Functor f) => Functor (VariantF (f ': fs)) Source #
Instance details Defined in Data.Variant.VariantF Methods fmap :: (a -> b) -> VariantF (f ': fs) a -> VariantF (f ': fs) b # (<$) :: a -> VariantF (f ': fs) b -> VariantF (f ': fs) a #
Functor (VariantF ('[] :: [Type -> Type])) Source #
Instance details Defined in Data.Variant.VariantF Methods fmap :: (a -> b) -> VariantF '[] a -> VariantF '[] b # (<$) :: a -> VariantF '[] b -> VariantF '[] a #
(Show1 (VariantF xs), ConstraintAll1 Show1 xs, Show e) => Show (VariantF xs e) Source #	Show instance for VariantF `>>>` `let a = FV (ConsF 'a' "Test") :: VariantF '[ConsF Char,NilF] String``>>>` `let b = FV (NilF :: NilF String) :: VariantF '[ConsF Char,NilF] String``>>>` `print a`ConsF 'a' "Test" `>>>` `print b`NilF
Instance details Defined in Data.Variant.VariantF Methods showsPrec :: Int -> VariantF xs e -> ShowS # show :: VariantF xs e -> String # showList :: [VariantF xs e] -> ShowS #
NFData (V (ApplyAll e xs)) => NFData (VariantF xs e) Source #
Instance details Defined in Data.Variant.VariantF Methods rnf :: VariantF xs e -> () #
(Eq1 (VariantF xs), ConstraintAll1 Eq1 xs, Eq e) => Eq (VariantF xs e) Source #	Eq instance for VariantF `>>>` `let a = FV (ConsF 'a' "Test") :: VariantF '[ConsF Char,NilF] String``>>>` `let a' = FV (ConsF 'a' "XXX") :: VariantF '[ConsF Char,NilF] String``>>>` `let b = FV (ConsF 'b' "Test") :: VariantF '[ConsF Char,NilF] String``>>>` `a == a`True `>>>` `a == a'`False `>>>` `a == b`False `>>>` `let c = FV (ConsF 'c' b) :: VariantF '[ConsF Char,NilF] (VariantF '[ConsF Char, NilF] String)``>>>` `c == c`True `>>>` `let n1 = FV (NilF :: NilF ()) :: VariantF '[ConsF Char,NilF] ()``>>>` `let n2 = FV (NilF :: NilF ()) :: VariantF '[ConsF Char,NilF] ()``>>>` `n1 == n2`True
Instance details Defined in Data.Variant.VariantF Methods (==) :: VariantF xs e -> VariantF xs e -> Bool # (/=) :: VariantF xs e -> VariantF xs e -> Bool #
(Ord1 (VariantF xs), ConstraintAll1 Ord1 xs, ConstraintAll1 Eq1 xs, Ord e) => Ord (VariantF xs e) Source #	Ord instance for VariantF `>>>` `let a = FV (ConsF 'a' "Test") :: VariantF '[ConsF Char,NilF] String``>>>` `let a' = FV (ConsF 'a' "XXX") :: VariantF '[ConsF Char,NilF] String``>>>` `let b = FV (ConsF 'b' "Test") :: VariantF '[ConsF Char,NilF] String``>>>` `compare a a`EQ `>>>` `compare a a'`LT `>>>` `compare a b`LT
Instance details Defined in Data.Variant.VariantF Methods compare :: VariantF xs e -> VariantF xs e -> Ordering # (<) :: VariantF xs e -> VariantF xs e -> Bool # (<=) :: VariantF xs e -> VariantF xs e -> Bool # (>) :: VariantF xs e -> VariantF xs e -> Bool # (>=) :: VariantF xs e -> VariantF xs e -> Bool # max :: VariantF xs e -> VariantF xs e -> VariantF xs e # min :: VariantF xs e -> VariantF xs e -> VariantF xs e #
ContVariant (ApplyAll e xs) => MultiCont (VariantF xs e) Source #
Instance details Defined in Data.Variant.VariantF Associated Types type MultiContTypes (VariantF xs e) :: [Type] Source # Methods toCont :: VariantF xs e -> ContFlow (MultiContTypes (VariantF xs e)) r Source # toContM :: Monad m => m (VariantF xs e) -> ContFlow (MultiContTypes (VariantF xs e)) (m r) Source #
type Base (VariantF xs a) Source #
Instance details Defined in Data.Variant.VariantF type Base (VariantF xs a) = VariantF xs
type MultiContTypes (VariantF xs e) Source #
Instance details Defined in Data.Variant.VariantF type MultiContTypes (VariantF xs e) = ApplyAll e xs

type family ApplyAll (e :: t) (xs :: [t -> k]) :: [k] where ... Source #

Apply its first argument to every element of the 2nd arg list

ApplyAll e '[f,g,h] ==> '[f e, g e, h e]

Equations

ApplyAll e '[] = '[]
ApplyAll e (f ': fs) = f e ': ApplyAll e fs

pattern FV :: forall c cs e. c :< ApplyAll e cs => c -> VariantF cs e Source #

Pattern-match in a VariantF

>>> FV (NilF :: NilF String) :: VariantF '[ConsF Char,NilF] String
NilF

appendVariantF :: forall (ys :: [Type -> Type]) (xs :: [Type -> Type]) e. ApplyAll e (Concat xs ys) ~ Concat (ApplyAll e xs) (ApplyAll e ys) => VariantF xs e -> VariantF (Concat xs ys) e Source #

prependVariantF :: forall (xs :: [Type -> Type]) (ys :: [Type -> Type]) e. (ApplyAll e (Concat xs ys) ~ Concat (ApplyAll e xs) (ApplyAll e ys), KnownNat (Length (ApplyAll e xs))) => VariantF ys e -> VariantF (Concat xs ys) e Source #

toVariantFHead :: forall x xs e. x e -> VariantF (x ': xs) e Source #

Set the first value

toVariantFTail :: forall x xs e. VariantF xs e -> VariantF (x ': xs) e Source #

Set the tail

popVariantFHead :: forall x xs e. VariantF (x ': xs) e -> Either (VariantF xs e) (x e) Source #

Pop VariantF head

variantFToValue :: VariantF '[f] e -> f e Source #

Retrieve a single value

type MapVariantF a b cs ds e = (MapVariant (a e) (b e) (ApplyAll e cs), ds ~ ReplaceNS (IndexesOf a cs) b cs, ApplyAll e ds ~ ReplaceNS (IndexesOf (a e) (ApplyAll e cs)) (b e) (ApplyAll e cs)) Source #

mapVariantF :: forall a b cs ds e. MapVariantF a b cs ds e => (a e -> b e) -> VariantF cs e -> VariantF ds e Source #

Map the matching types of a variant

type PopVariantF x xs e = (x e :< ApplyAll e xs, Remove (x e) (ApplyAll e xs) ~ ApplyAll e (Remove x xs)) Source #

popVariantF :: forall x xs e. PopVariantF x xs e => VariantF xs e -> Either (VariantF (Remove x xs) e) (x e) Source #

Pop VariantF

type LiftVariantF xs ys e = LiftVariant (ApplyAll e xs) (ApplyAll e ys) Source #

xs is liftable in ys

liftVariantF :: forall as bs e. LiftVariantF as bs e => VariantF as e -> VariantF bs e Source #

Lift a VariantF into another

type SplitVariantF as xs e = (Complement (ApplyAll e xs) (ApplyAll e as) ~ ApplyAll e (Complement xs as), SplitVariant (ApplyAll e as) (ApplyAll e (Complement xs as)) (ApplyAll e xs)) Source #

splitVariantF :: forall as xs e. SplitVariantF as xs e => VariantF xs e -> Either (VariantF (Complement xs as) e) (VariantF as e) Source #

Split a VariantF in two

variantFToCont :: ContVariant (ApplyAll e xs) => VariantF xs e -> ContFlow (ApplyAll e xs) r Source #

Convert a VariantF into a multi-continuation

variantFToContM :: (ContVariant (ApplyAll e xs), Monad m) => m (VariantF xs e) -> ContFlow (ApplyAll e xs) (m r) Source #

Convert a VariantF into a multi-continuation

contToVariantF :: forall xs e. ContVariant (ApplyAll e xs) => ContFlow (ApplyAll e xs) (V (ApplyAll e xs)) -> VariantF xs e Source #

Convert a multi-continuation into a VariantF

contToVariantFM :: forall xs e m. (ContVariant (ApplyAll e xs), Monad m) => ContFlow (ApplyAll e xs) (m (V (ApplyAll e xs))) -> m (VariantF xs e) Source #

Convert a multi-continuation into a VariantF

Algebras

type family BottomUpF c fs :: Constraint where ... Source #

Equations

BottomUpF c fs = (Functor (VariantF fs), BottomUp c fs)

class BottomUp c fs where Source #

Methods

toBottomUp :: (forall f. c f => f a -> b) -> VariantF fs a -> b Source #

Instances

Instances details

BottomUp (c :: (t -> Type) -> Constraint) ('[] :: [t -> Type]) Source #
Instance details Defined in Data.Variant.VariantF Methods toBottomUp :: forall (a :: t0) b. (forall (f :: t0 -> Type). c f => f a -> b) -> VariantF '[] a -> b Source #
(BottomUp c fs, c f) => BottomUp (c :: (t -> Type) -> Constraint) (f ': fs :: [t -> Type]) Source #
Instance details Defined in Data.Variant.VariantF Methods toBottomUp :: forall (a :: t0) b. (forall (f0 :: t0 -> Type). c f0 => f0 a -> b) -> VariantF (f ': fs) a -> b Source #

class BottomUpOrig c fs where Source #

Methods

toBottomUpOrig :: (forall f. c f => f (t, a) -> b) -> VariantF fs (t, a) -> b Source #

Instances

Instances details

BottomUpOrig c ('[] :: [Type -> Type]) Source #
Instance details Defined in Data.Variant.VariantF Methods toBottomUpOrig :: (forall (f :: Type -> Type). c f => f (t, a) -> b) -> VariantF '[] (t, a) -> b Source #
(BottomUpOrig c fs, c f) => BottomUpOrig c (f ': fs) Source #
Instance details Defined in Data.Variant.VariantF Methods toBottomUpOrig :: (forall (f0 :: Type -> Type). c f0 => f0 (t, a) -> b) -> VariantF (f ': fs) (t, a) -> b Source #

type family BottomUpOrigF c fs :: Constraint where ... Source #

Equations

BottomUpOrigF c fs = (Functor (VariantF fs), BottomUpOrig c fs)

class TopDownStop c fs where Source #

Methods

toTopDownStop :: (forall f. c f => TopDownStopT a f) -> TopDownStopT a (VariantF fs) Source #

Instances

Instances details

TopDownStop c ('[] :: [Type -> Type]) Source #
Instance details Defined in Data.Variant.VariantF Methods toTopDownStop :: (forall (f :: Type -> Type). c f => TopDownStopT a f) -> TopDownStopT a (VariantF '[]) Source #
(TopDownStop c fs, Functor f, c f) => TopDownStop c (f ': fs) Source #
Instance details Defined in Data.Variant.VariantF Methods toTopDownStop :: (forall (f0 :: Type -> Type). c f0 => TopDownStopT a f0) -> TopDownStopT a (VariantF (f ': fs)) Source #

type family TopDownStopF c fs :: Constraint where ... Source #

Equations

TopDownStopF c fs = (Functor (VariantF fs), TopDownStop c fs)

Reexport

class NoConstraint a Source #

Useful to specify a "Type -> Constraint" function returning an empty constraint

Instances

Instances details

NoConstraint a Source #
Instance details Defined in Data.Variant

module Data.Functor