Data.Kind

Basic kinds

Since: base-4.9.0.0

Documentation

type Type = TYPE LiftedRep

The kind of types with lifted values. For example Int :: Type.

type Constraint = CONSTRAINT LiftedRep

The kind of lifted constraints

data FUN

The builtin function type, written in infix form as a % m -> b. Values of this type are functions taking inputs of type a and producing outputs of type b. The multiplicity of the input is m.

Note that FUN m a b permits representation polymorphism in both a and b, so that types like Int# -> Int# can still be well-kinded.

Instances

Category (->)

Since: base-3.0

Defined in Control.Category

Methods

id :: a -> a

(.) :: (b -> c) -> (a -> b) -> a -> c

Arrow (->)

Since: base-2.1

Defined in Control.Arrow

Methods

arr :: (b -> c) -> b -> c

first :: (b -> c) -> (b, d) -> (c, d)

second :: (b -> c) -> (d, b) -> (d, c)

(***) :: (b -> c) -> (b' -> c') -> (b, b') -> (c, c')

(&&&) :: (b -> c) -> (b -> c') -> b -> (c, c')

ArrowApply (->)

Since: base-2.1

Defined in Control.Arrow

Methods

app :: (b -> c, b) -> c

ArrowChoice (->)

Since: base-2.1

Defined in Control.Arrow

Methods

left :: (b -> c) -> Either b d -> Either c d

right :: (b -> c) -> Either d b -> Either d c

(+++) :: (b -> c) -> (b' -> c') -> Either b b' -> Either c c'

(|||) :: (b -> d) -> (c -> d) -> Either b c -> d

ArrowLoop (->)

Since: base-2.1

Defined in Control.Arrow

Methods

loop :: ((b, d) -> (c, d)) -> b -> c

Monoid b => Monoid (a -> b)

Since: base-2.1

Defined in GHC.Base

Methods

mempty :: a -> b

mappend :: (a -> b) -> (a -> b) -> a -> b

mconcat :: [a -> b] -> a -> b

Semigroup b => Semigroup (a -> b)

Since: base-4.9.0.0

Defined in GHC.Base

Methods

(<>) :: (a -> b) -> (a -> b) -> a -> b

sconcat :: NonEmpty (a -> b) -> a -> b

stimes :: Integral b0 => b0 -> (a -> b) -> a -> b

Show (a -> b)

Since: base-2.1

Defined in Text.Show.Functions

Methods

showsPrec :: Int -> (a -> b) -> ShowS

show :: (a -> b) -> String

showList :: [a -> b] -> ShowS

(PrintfArg a, HPrintfType r) => HPrintfType (a -> r)

Since: base-2.1

Defined in Text.Printf

Methods

hspr :: Handle -> String -> [UPrintf] -> a -> r

(PrintfArg a, PrintfType r) => PrintfType (a -> r)

Since: base-2.1

Defined in Text.Printf

Methods

spr :: String -> [UPrintf] -> a -> r

MonadFix ((->) r)

Since: base-2.1

Defined in Control.Monad.Fix

Methods

mfix :: (a -> r -> a) -> r -> a

Applicative ((->) r)

Since: base-2.1

Defined in GHC.Base

Methods

pure :: a -> r -> a

(<*>) :: (r -> (a -> b)) -> (r -> a) -> r -> b

liftA2 :: (a -> b -> c) -> (r -> a) -> (r -> b) -> r -> c

(*>) :: (r -> a) -> (r -> b) -> r -> b

(<*) :: (r -> a) -> (r -> b) -> r -> a

Functor ((->) r)

Since: base-2.1

Defined in GHC.Base

Methods

fmap :: (a -> b) -> (r -> a) -> r -> b

(<$) :: a -> (r -> b) -> r -> a

Monad ((->) r)

Since: base-2.1

Defined in GHC.Base

Methods

(>>=) :: (r -> a) -> (a -> r -> b) -> r -> b

(>>) :: (r -> a) -> (r -> b) -> r -> b

return :: a -> r -> a