Data.Maybe.Singletons

Defines functions and datatypes relating to the singleton for Maybe, including singled versions of all the definitions in Data.Maybe.

Because many of these definitions are produced by Template Haskell, it is not possible to create proper Haddock documentation. Please look up the corresponding operation in Data.Maybe. Also, please excuse the apparent repeated variable names. This is due to an interaction between Template Haskell and Haddock.

Documentation

type family Sing :: k -> Type

The singleton kind-indexed type family.

Instances

type Sing

Defined in Data.Semigroup.Singletons.Internal.Wrappers

type Sing = SAll

type Sing

Defined in Data.Semigroup.Singletons.Internal.Wrappers

type Sing = SAny

type Sing

Defined in Data.Singletons.Base.Instances

type Sing = SVoid

type Sing

Defined in GHC.TypeLits.Singletons.Internal

type Sing = SNat

type Sing

Defined in Data.Singletons.Base.Instances

type Sing = SOrdering

type Sing

Defined in Data.Singletons.Base.TypeError

type Sing = SErrorMessage

type Sing

Defined in Data.Singletons.Base.Instances

type Sing = STuple0

type Sing

Defined in Data.Singletons.Base.Instances

type Sing = SBool

type Sing

Defined in GHC.TypeLits.Singletons.Internal

type Sing = SChar

type Sing

Defined in GHC.TypeLits.Singletons.Internal

type Sing = SSymbol

type Sing

Defined in Data.Singletons.Base.Instances

type Sing = SIdentity :: Identity a -> Type

type Sing

Defined in Data.Monoid.Singletons

type Sing = SFirst :: First a -> Type

type Sing

Defined in Data.Monoid.Singletons

type Sing = SLast :: Last a -> Type

type Sing

Defined in Data.Ord.Singletons

type Sing = SDown :: Down a -> Type

type Sing

Defined in Data.Semigroup.Singletons.Internal.Wrappers

type Sing = SFirst :: First a -> Type

type Sing

Defined in Data.Semigroup.Singletons.Internal.Wrappers

type Sing = SLast :: Last a -> Type

type Sing

Defined in Data.Semigroup.Singletons.Internal.Wrappers

type Sing = SMax :: Max a -> Type

type Sing

Defined in Data.Semigroup.Singletons.Internal.Wrappers

type Sing = SMin :: Min a -> Type

type Sing

Defined in Data.Semigroup.Singletons.Internal.Wrappers

type Sing = SWrappedMonoid :: WrappedMonoid m -> Type

type Sing

Defined in Data.Semigroup.Singletons.Internal.Wrappers

type Sing = SDual :: Dual a -> Type

type Sing

Defined in Data.Semigroup.Singletons.Internal.Wrappers

type Sing = SProduct :: Product a -> Type

type Sing

Defined in Data.Semigroup.Singletons.Internal.Wrappers

type Sing = SSum :: Sum a -> Type

type Sing

Defined in Data.Singletons.Base.Instances

type Sing = SNonEmpty :: NonEmpty a -> Type

type Sing

Defined in Data.Singletons.Base.Instances

type Sing = SMaybe :: Maybe a -> Type

type Sing

A choice of singleton for the kind TYPE rep (for some RuntimeRep rep), an instantiation of which is the famous kind Type.

Conceivably, one could generalize this instance to `Sing @k` for any kind k, and remove all other Sing instances. We don't adopt this design, however, since it is far more convenient in practice to work with explicit singleton values than TypeReps (for instance, TypeReps are more difficult to pattern match on, and require extra runtime checks).

We cannot produce explicit singleton values for everything in TYPE rep, however, since it is an open kind, so we reach for TypeRep in this one particular case.

Defined in Data.Singletons.Base.TypeRepTYPE

type Sing = TypeRep :: TYPE rep -> Type

type Sing

Defined in Data.Singletons.Base.Instances

type Sing = SList :: [a] -> Type

type Sing

Defined in Data.Singletons.Base.Instances

type Sing = SEither :: Either a b -> Type

type Sing

Defined in Data.Proxy.Singletons

type Sing = SProxy :: Proxy t -> Type

type Sing

Defined in Data.Semigroup.Singletons

type Sing = SArg :: Arg a b -> Type

type Sing

Defined in Data.Singletons

type Sing = SWrappedSing :: WrappedSing a -> Type

type Sing

Defined in Data.Singletons

type Sing = SLambda :: (k1 ~> k2) -> Type

type Sing

Defined in Data.Singletons.Base.Instances

type Sing = STuple2 :: (a, b) -> Type

type Sing

Defined in Data.Functor.Const.Singletons

type Sing = SConst :: Const a b -> Type

type Sing

Defined in Data.Singletons.Base.Instances

type Sing = STuple3 :: (a, b, c) -> Type

type Sing

Defined in Data.Functor.Product.Singletons

type Sing = SProduct :: Product f g a -> Type

type Sing

Defined in Data.Functor.Sum.Singletons

type Sing = SSum :: Sum f g a -> Type

type Sing

Defined in Data.Singletons.Base.Instances

type Sing = STuple4 :: (a, b, c, d) -> Type

type Sing

Defined in Data.Functor.Compose.Singletons

type Sing = SCompose :: Compose f g a -> Type

type Sing

Defined in Data.Singletons.Base.Instances

type Sing = STuple5 :: (a, b, c, d, e) -> Type

type Sing

Defined in Data.Singletons.Base.Instances

type Sing = STuple6 :: (a, b, c, d, e, f) -> Type

type Sing

Defined in Data.Singletons.Base.Instances

type Sing = STuple7 :: (a, b, c, d, e, f, g) -> Type

data SMaybe :: forall (a :: Type). Maybe a -> Type where

Constructors

SNothing :: forall (a :: Type). SMaybe ('Nothing :: Maybe (a :: Type))

SJust :: forall (a :: Type) (n :: a). (Sing n) -> SMaybe ('Just n :: Maybe (a :: Type))

Instances

SDecide a => TestCoercion (SMaybe :: Maybe a -> Type)

Defined in Data.Singletons.Base.Instances

Methods

testCoercion :: forall (a0 :: k) (b :: k). SMaybe a0 -> SMaybe b -> Maybe (Coercion a0 b)

SDecide a => TestEquality (SMaybe :: Maybe a -> Type)

Defined in Data.Singletons.Base.Instances

Methods

testEquality :: forall (a0 :: k) (b :: k). SMaybe a0 -> SMaybe b -> Maybe (a0 :~: b)

ShowSing a => Show (SMaybe z)

Defined in Data.Singletons.Base.Instances

Methods

showsPrec :: Int -> SMaybe z -> ShowS

show :: SMaybe z -> String

showList :: [SMaybe z] -> ShowS

Singletons from Data.Maybe

maybe_ :: b -> (a -> b) -> Maybe a -> b

type family Maybe_ (a :: b) (a :: (~>) a b) (a :: Maybe a) :: b where ...

Equations

Maybe_ n _ 'Nothing = n

Maybe_ _ f ('Just x) = Apply f x

sMaybe_ :: forall (t :: b) (t :: (~>) a b) (t :: Maybe a). Sing t -> Sing t -> Sing t -> Sing (Apply (Apply (Apply Maybe_Sym0 t) t) t :: b) :: Type

The preceding two definitions are derived from the function maybe in Data.Maybe. The extra underscore is to avoid name clashes with the type Maybe.

type family IsJust (a :: Maybe a) :: Bool where ...

Equations

IsJust 'Nothing = FalseSym0

IsJust ('Just _) = TrueSym0

sIsJust :: forall (t :: Maybe a). Sing t -> Sing (Apply IsJustSym0 t :: Bool) :: Type

type family IsNothing (a :: Maybe a) :: Bool where ...

Equations

IsNothing 'Nothing = TrueSym0

IsNothing ('Just _) = FalseSym0

sIsNothing :: forall (t :: Maybe a). Sing t -> Sing (Apply IsNothingSym0 t :: Bool) :: Type

type family FromJust (a :: Maybe a) :: a where ...

Equations

FromJust 'Nothing = Apply ErrorSym0 "Maybe.fromJust: Nothing"

FromJust ('Just x) = x

sFromJust :: forall (t :: Maybe a). Sing t -> Sing (Apply FromJustSym0 t :: a) :: Type

type family FromMaybe (a :: a) (a :: Maybe a) :: a where ...

Equations

FromMaybe d x = Case_6989586621679468375 d x x

sFromMaybe :: forall (t :: a) (t :: Maybe a). Sing t -> Sing t -> Sing (Apply (Apply FromMaybeSym0 t) t :: a) :: Type

type family ListToMaybe (a :: [a]) :: Maybe a where ...

Equations

ListToMaybe '[] = NothingSym0

ListToMaybe ('(:) a _) = Apply JustSym0 a

sListToMaybe :: forall (t :: [a]). Sing t -> Sing (Apply ListToMaybeSym0 t :: Maybe a) :: Type

type family MaybeToList (a :: Maybe a) :: [a] where ...

Equations

MaybeToList 'Nothing = NilSym0

MaybeToList ('Just x) = Apply (Apply (:@#@$) x) NilSym0

sMaybeToList :: forall (t :: Maybe a). Sing t -> Sing (Apply MaybeToListSym0 t :: [a]) :: Type

type family CatMaybes (a :: [Maybe a]) :: [a] where ...

Equations

CatMaybes '[] = NilSym0

CatMaybes ('(:) ('Just x) xs) = Apply (Apply (:@#@$) x) (Apply CatMaybesSym0 xs)

CatMaybes ('(:) 'Nothing xs) = Apply CatMaybesSym0 xs

sCatMaybes :: forall (t :: [Maybe a]). Sing t -> Sing (Apply CatMaybesSym0 t :: [a]) :: Type

type family MapMaybe (a :: (~>) a (Maybe b)) (a :: [a]) :: [b] where ...

Equations

MapMaybe _ '[] = NilSym0

MapMaybe f ('(:) x xs) = Case_6989586621679468350 f x xs (Let6989586621679468348Scrutinee_6989586621679468218Sym3 f x xs)

sMapMaybe :: forall (t :: (~>) a (Maybe b)) (t :: [a]). Sing t -> Sing t -> Sing (Apply (Apply MapMaybeSym0 t) t :: [b]) :: Type

Defunctionalization symbols

type family NothingSym0 :: Maybe (a :: Type) where ...

Equations

NothingSym0 = 'Nothing

data JustSym0 :: (~>) a (Maybe (a :: Type))

Instances

SingI (JustSym0 :: TyFun a (Maybe a) -> Type)

Defined in Data.Singletons.Base.Instances

Methods

sing :: Sing JustSym0

SuppressUnusedWarnings (JustSym0 :: TyFun a (Maybe a) -> Type)

Defined in Data.Singletons.Base.Instances

Methods

suppressUnusedWarnings :: ()

type Apply (JustSym0 :: TyFun a (Maybe a) -> Type) (a6989586621679037528 :: a)

Defined in Data.Singletons.Base.Instances

type Apply (JustSym0 :: TyFun a (Maybe a) -> Type) (a6989586621679037528 :: a) = 'Just a6989586621679037528

type family JustSym1 (a6989586621679037528 :: a) :: Maybe (a :: Type) where ...

Equations

JustSym1 a6989586621679037528 = 'Just a6989586621679037528

data Maybe_Sym0 :: (~>) b ((~>) ((~>) a b) ((~>) (Maybe a) b))

Instances

SingI (Maybe_Sym0 :: TyFun b ((a ~> b) ~> (Maybe a ~> b)) -> Type)

Defined in Data.Maybe.Singletons

Methods

sing :: Sing Maybe_Sym0

SuppressUnusedWarnings (Maybe_Sym0 :: TyFun b ((a ~> b) ~> (Maybe a ~> b)) -> Type)

Defined in Data.Maybe.Singletons

Methods

suppressUnusedWarnings :: ()

type Apply (Maybe_Sym0 :: TyFun b ((a ~> b) ~> (Maybe a ~> b)) -> Type) (a6989586621679466255 :: b)

Defined in Data.Maybe.Singletons

type Apply (Maybe_Sym0 :: TyFun b ((a ~> b) ~> (Maybe a ~> b)) -> Type) (a6989586621679466255 :: b) = Maybe_Sym1 a6989586621679466255 :: TyFun (a ~> b) (Maybe a ~> b) -> Type

data Maybe_Sym1 (a6989586621679466255 :: b) :: (~>) ((~>) a b) ((~>) (Maybe a) b)

Instances

SingI1 (Maybe_Sym1 :: b -> TyFun (a ~> b) (Maybe a ~> b) -> Type)

Defined in Data.Maybe.Singletons

Methods

liftSing :: forall (x :: k1). Sing x -> Sing (Maybe_Sym1 x)

SingI d => SingI (Maybe_Sym1 d :: TyFun (a ~> b) (Maybe a ~> b) -> Type)

Defined in Data.Maybe.Singletons

Methods

sing :: Sing (Maybe_Sym1 d)

SuppressUnusedWarnings (Maybe_Sym1 a6989586621679466255 :: TyFun (a ~> b) (Maybe a ~> b) -> Type)

Defined in Data.Maybe.Singletons

Methods

suppressUnusedWarnings :: ()

type Apply (Maybe_Sym1 a6989586621679466255 :: TyFun (a ~> b) (Maybe a ~> b) -> Type) (a6989586621679466256 :: a ~> b)

Defined in Data.Maybe.Singletons

type Apply (Maybe_Sym1 a6989586621679466255 :: TyFun (a ~> b) (Maybe a ~> b) -> Type) (a6989586621679466256 :: a ~> b) = Maybe_Sym2 a6989586621679466255 a6989586621679466256

data Maybe_Sym2 (a6989586621679466255 :: b) (a6989586621679466256 :: (~>) a b) :: (~>) (Maybe a) b

Instances

SingI2 (Maybe_Sym2 :: b -> (a ~> b) -> TyFun (Maybe a) b -> Type)

Defined in Data.Maybe.Singletons

Methods

liftSing2 :: forall (x :: k1) (y :: k2). Sing x -> Sing y -> Sing (Maybe_Sym2 x y)

SingI d => SingI1 (Maybe_Sym2 d :: (a ~> b) -> TyFun (Maybe a) b -> Type)

Defined in Data.Maybe.Singletons

Methods

liftSing :: forall (x :: k1). Sing x -> Sing (Maybe_Sym2 d x)

(SingI d1, SingI d2) => SingI (Maybe_Sym2 d1 d2 :: TyFun (Maybe a) b -> Type)

Defined in Data.Maybe.Singletons

Methods

sing :: Sing (Maybe_Sym2 d1 d2)

SuppressUnusedWarnings (Maybe_Sym2 a6989586621679466255 a6989586621679466256 :: TyFun (Maybe a) b -> Type)

Defined in Data.Maybe.Singletons

Methods

suppressUnusedWarnings :: ()

type Apply (Maybe_Sym2 a6989586621679466255 a6989586621679466256 :: TyFun (Maybe a) b -> Type) (a6989586621679466257 :: Maybe a)

Defined in Data.Maybe.Singletons

type Apply (Maybe_Sym2 a6989586621679466255 a6989586621679466256 :: TyFun (Maybe a) b -> Type) (a6989586621679466257 :: Maybe a) = Maybe_ a6989586621679466255 a6989586621679466256 a6989586621679466257

type family Maybe_Sym3 (a6989586621679466255 :: b) (a6989586621679466256 :: (~>) a b) (a6989586621679466257 :: Maybe a) :: b where ...

Equations

Maybe_Sym3 a6989586621679466255 a6989586621679466256 a6989586621679466257 = Maybe_ a6989586621679466255 a6989586621679466256 a6989586621679466257

data IsJustSym0 :: (~>) (Maybe a) Bool

Instances

SingI (IsJustSym0 :: TyFun (Maybe a) Bool -> Type)

Defined in Data.Maybe.Singletons

Methods

sing :: Sing IsJustSym0

SuppressUnusedWarnings (IsJustSym0 :: TyFun (Maybe a) Bool -> Type)

Defined in Data.Maybe.Singletons

Methods

suppressUnusedWarnings :: ()

type Apply (IsJustSym0 :: TyFun (Maybe a) Bool -> Type) (a6989586621679468388 :: Maybe a)

Defined in Data.Maybe.Singletons

type Apply (IsJustSym0 :: TyFun (Maybe a) Bool -> Type) (a6989586621679468388 :: Maybe a) = IsJust a6989586621679468388

type family IsJustSym1 (a6989586621679468388 :: Maybe a) :: Bool where ...

Equations

IsJustSym1 a6989586621679468388 = IsJust a6989586621679468388

data IsNothingSym0 :: (~>) (Maybe a) Bool

Instances

SingI (IsNothingSym0 :: TyFun (Maybe a) Bool -> Type)

Defined in Data.Maybe.Singletons

Methods

sing :: Sing IsNothingSym0

SuppressUnusedWarnings (IsNothingSym0 :: TyFun (Maybe a) Bool -> Type)

Defined in Data.Maybe.Singletons

Methods

suppressUnusedWarnings :: ()

type Apply (IsNothingSym0 :: TyFun (Maybe a) Bool -> Type) (a6989586621679468385 :: Maybe a)

Defined in Data.Maybe.Singletons

type Apply (IsNothingSym0 :: TyFun (Maybe a) Bool -> Type) (a6989586621679468385 :: Maybe a) = IsNothing a6989586621679468385

type family IsNothingSym1 (a6989586621679468385 :: Maybe a) :: Bool where ...

Equations

IsNothingSym1 a6989586621679468385 = IsNothing a6989586621679468385

data FromJustSym0 :: (~>) (Maybe a) a

Instances

SingI (FromJustSym0 :: TyFun (Maybe a) a -> Type)

Defined in Data.Maybe.Singletons

Methods

sing :: Sing FromJustSym0

SuppressUnusedWarnings (FromJustSym0 :: TyFun (Maybe a) a -> Type)

Defined in Data.Maybe.Singletons

Methods

suppressUnusedWarnings :: ()

type Apply (FromJustSym0 :: TyFun (Maybe a) a -> Type) (a6989586621679468381 :: Maybe a)

Defined in Data.Maybe.Singletons

type Apply (FromJustSym0 :: TyFun (Maybe a) a -> Type) (a6989586621679468381 :: Maybe a) = FromJust a6989586621679468381

type family FromJustSym1 (a6989586621679468381 :: Maybe a) :: a where ...

Equations

FromJustSym1 a6989586621679468381 = FromJust a6989586621679468381

data FromMaybeSym0 :: (~>) a ((~>) (Maybe a) a)

Instances

SingI (FromMaybeSym0 :: TyFun a (Maybe a ~> a) -> Type)

Defined in Data.Maybe.Singletons

Methods

sing :: Sing FromMaybeSym0

SuppressUnusedWarnings (FromMaybeSym0 :: TyFun a (Maybe a ~> a) -> Type)

Defined in Data.Maybe.Singletons

Methods

suppressUnusedWarnings :: ()

type Apply (FromMaybeSym0 :: TyFun a (Maybe a ~> a) -> Type) (a6989586621679468371 :: a)

Defined in Data.Maybe.Singletons

type Apply (FromMaybeSym0 :: TyFun a (Maybe a ~> a) -> Type) (a6989586621679468371 :: a) = FromMaybeSym1 a6989586621679468371

data FromMaybeSym1 (a6989586621679468371 :: a) :: (~>) (Maybe a) a

Instances

SingI1 (FromMaybeSym1 :: a -> TyFun (Maybe a) a -> Type)

Defined in Data.Maybe.Singletons

Methods

liftSing :: forall (x :: k1). Sing x -> Sing (FromMaybeSym1 x)

SingI d => SingI (FromMaybeSym1 d :: TyFun (Maybe a) a -> Type)

Defined in Data.Maybe.Singletons

Methods

sing :: Sing (FromMaybeSym1 d)

SuppressUnusedWarnings (FromMaybeSym1 a6989586621679468371 :: TyFun (Maybe a) a -> Type)

Defined in Data.Maybe.Singletons

Methods

suppressUnusedWarnings :: ()

type Apply (FromMaybeSym1 a6989586621679468371 :: TyFun (Maybe a) a -> Type) (a6989586621679468372 :: Maybe a)

Defined in Data.Maybe.Singletons

type Apply (FromMaybeSym1 a6989586621679468371 :: TyFun (Maybe a) a -> Type) (a6989586621679468372 :: Maybe a) = FromMaybe a6989586621679468371 a6989586621679468372

type family FromMaybeSym2 (a6989586621679468371 :: a) (a6989586621679468372 :: Maybe a) :: a where ...

Equations

FromMaybeSym2 a6989586621679468371 a6989586621679468372 = FromMaybe a6989586621679468371 a6989586621679468372

data ListToMaybeSym0 :: (~>) [a] (Maybe a)

Instances

SingI (ListToMaybeSym0 :: TyFun [a] (Maybe a) -> Type)

Defined in Data.Maybe.Singletons

Methods

sing :: Sing ListToMaybeSym0

SuppressUnusedWarnings (ListToMaybeSym0 :: TyFun [a] (Maybe a) -> Type)

Defined in Data.Maybe.Singletons

Methods

suppressUnusedWarnings :: ()

type Apply (ListToMaybeSym0 :: TyFun [a] (Maybe a) -> Type) (a6989586621679468362 :: [a])

Defined in Data.Maybe.Singletons

type Apply (ListToMaybeSym0 :: TyFun [a] (Maybe a) -> Type) (a6989586621679468362 :: [a]) = ListToMaybe a6989586621679468362

type family ListToMaybeSym1 (a6989586621679468362 :: [a]) :: Maybe a where ...

Equations

ListToMaybeSym1 a6989586621679468362 = ListToMaybe a6989586621679468362

data MaybeToListSym0 :: (~>) (Maybe a) [a]

Instances

SingI (MaybeToListSym0 :: TyFun (Maybe a) [a] -> Type)

Defined in Data.Maybe.Singletons

Methods

sing :: Sing MaybeToListSym0

SuppressUnusedWarnings (MaybeToListSym0 :: TyFun (Maybe a) [a] -> Type)

Defined in Data.Maybe.Singletons

Methods

suppressUnusedWarnings :: ()

type Apply (MaybeToListSym0 :: TyFun (Maybe a) [a] -> Type) (a6989586621679468366 :: Maybe a)

Defined in Data.Maybe.Singletons

type Apply (MaybeToListSym0 :: TyFun (Maybe a) [a] -> Type) (a6989586621679468366 :: Maybe a) = MaybeToList a6989586621679468366

type family MaybeToListSym1 (a6989586621679468366 :: Maybe a) :: [a] where ...

Equations

MaybeToListSym1 a6989586621679468366 = MaybeToList a6989586621679468366

data CatMaybesSym0 :: (~>) [Maybe a] [a]

Instances

SingI (CatMaybesSym0 :: TyFun [Maybe a] [a] -> Type)

Defined in Data.Maybe.Singletons

Methods

sing :: Sing CatMaybesSym0

SuppressUnusedWarnings (CatMaybesSym0 :: TyFun [Maybe a] [a] -> Type)

Defined in Data.Maybe.Singletons

Methods

suppressUnusedWarnings :: ()

type Apply (CatMaybesSym0 :: TyFun [Maybe a] [a] -> Type) (a6989586621679468356 :: [Maybe a])

Defined in Data.Maybe.Singletons

type Apply (CatMaybesSym0 :: TyFun [Maybe a] [a] -> Type) (a6989586621679468356 :: [Maybe a]) = CatMaybes a6989586621679468356

type family CatMaybesSym1 (a6989586621679468356 :: [Maybe a]) :: [a] where ...

Equations

CatMaybesSym1 a6989586621679468356 = CatMaybes a6989586621679468356

data MapMaybeSym0 :: (~>) ((~>) a (Maybe b)) ((~>) [a] [b])

Instances

SingI (MapMaybeSym0 :: TyFun (a ~> Maybe b) ([a] ~> [b]) -> Type)

Defined in Data.Maybe.Singletons

Methods

sing :: Sing MapMaybeSym0

SuppressUnusedWarnings (MapMaybeSym0 :: TyFun (a ~> Maybe b) ([a] ~> [b]) -> Type)

Defined in Data.Maybe.Singletons

Methods

suppressUnusedWarnings :: ()

type Apply (MapMaybeSym0 :: TyFun (a ~> Maybe b) ([a] ~> [b]) -> Type) (a6989586621679468341 :: a ~> Maybe b)

Defined in Data.Maybe.Singletons

type Apply (MapMaybeSym0 :: TyFun (a ~> Maybe b) ([a] ~> [b]) -> Type) (a6989586621679468341 :: a ~> Maybe b) = MapMaybeSym1 a6989586621679468341

data MapMaybeSym1 (a6989586621679468341 :: (~>) a (Maybe b)) :: (~>) [a] [b]

Instances

SingI1 (MapMaybeSym1 :: (a ~> Maybe b) -> TyFun [a] [b] -> Type)

Defined in Data.Maybe.Singletons

Methods

liftSing :: forall (x :: k1). Sing x -> Sing (MapMaybeSym1 x)

SingI d => SingI (MapMaybeSym1 d :: TyFun [a] [b] -> Type)

Defined in Data.Maybe.Singletons

Methods

sing :: Sing (MapMaybeSym1 d)

SuppressUnusedWarnings (MapMaybeSym1 a6989586621679468341 :: TyFun [a] [b] -> Type)

Defined in Data.Maybe.Singletons

Methods

suppressUnusedWarnings :: ()

type Apply (MapMaybeSym1 a6989586621679468341 :: TyFun [a] [b] -> Type) (a6989586621679468342 :: [a])

Defined in Data.Maybe.Singletons

type Apply (MapMaybeSym1 a6989586621679468341 :: TyFun [a] [b] -> Type) (a6989586621679468342 :: [a]) = MapMaybe a6989586621679468341 a6989586621679468342

type family MapMaybeSym2 (a6989586621679468341 :: (~>) a (Maybe b)) (a6989586621679468342 :: [a]) :: [b] where ...

Equations

MapMaybeSym2 a6989586621679468341 a6989586621679468342 = MapMaybe a6989586621679468341 a6989586621679468342