base-4.16.0.0: Basic libraries
LicenseBSD-style (see the LICENSE file in the distribution)
Maintainerlibraries@haskell.org
Stabilityexperimental
Portabilitynot portable
Safe HaskellTrustworthy
LanguageHaskell2010

Data.Kind

Description

Basic kinds

Since: base-4.9.0.0

Synopsis

Documentation

type Type = Type Source #

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

data Constraint Source #

The kind of constraints, like Show a

data FUN Source #

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 levity-polymorphism in both a and b, so that types like Int# -> Int# can still be well-kinded.

Instances

Instances details
Category (->) #

Since: base-3.0

Instance details

Defined in Control.Category

Methods

id :: forall (a :: k). a -> a Source #

(.) :: forall (b :: k) (c :: k) (a :: k). (b -> c) -> (a -> b) -> a -> c Source #

Show (a -> b) #

Since: base-2.1

Instance details

Defined in Text.Show.Functions

Methods

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

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

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

Semigroup b => Semigroup (a -> b) #

Since: base-4.9.0.0

Instance details

Defined in GHC.Base

Methods

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

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

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

Monoid b => Monoid (a -> b) #

Since: base-2.1

Instance details

Defined in GHC.Base

Methods

mempty :: a -> b Source #

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

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

Arrow (->) #

Since: base-2.1

Instance details

Defined in Control.Arrow

Methods

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

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

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

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

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

ArrowApply (->) #

Since: base-2.1

Instance details

Defined in Control.Arrow

Methods

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

ArrowChoice (->) #

Since: base-2.1

Instance details

Defined in Control.Arrow

Methods

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

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

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

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

ArrowLoop (->) #

Since: base-2.1

Instance details

Defined in Control.Arrow

Methods

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

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

Since: base-2.1

Instance details

Defined in Text.Printf

Methods

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

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

Since: base-2.1

Instance details

Defined in Text.Printf

Methods

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

Monad ((->) r) #

Since: base-2.1

Instance details

Defined in GHC.Base

Methods

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

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

return :: a -> r -> a Source #

Functor ((->) r) #

Since: base-2.1

Instance details

Defined in GHC.Base

Methods

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

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

MonadFix ((->) r) #

Since: base-2.1

Instance details

Defined in Control.Monad.Fix

Methods

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

Applicative ((->) r) #

Since: base-2.1

Instance details

Defined in GHC.Base

Methods

pure :: a -> r -> a Source #

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

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

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

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