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/Haskell 8

Data.Proxy

License BSD-style (see the LICENSE file in the distribution)
Maintainer [email protected]
Stability experimental
Portability portable
Safe Haskell Trustworthy
Language Haskell2010

Description

Definition of a Proxy type (poly-kinded in GHC)

Since: 4.7.0.0

data Proxy t Source

A concrete, poly-kinded proxy type

Constructors

Proxy

Instances

Generic1 k (Proxy k)

Associated Types

type Rep1 (Proxy k) (f :: Proxy k -> *) :: k -> * Source

Methods

from1 :: f a -> Rep1 (Proxy k) f a Source

to1 :: Rep1 (Proxy k) f a -> f a Source

Monad (Proxy *)

Since: 4.7.0.0

Methods

(>>=) :: Proxy * a -> (a -> Proxy * b) -> Proxy * b Source

(>>) :: Proxy * a -> Proxy * b -> Proxy * b Source

return :: a -> Proxy * a Source

fail :: String -> Proxy * a Source

Functor (Proxy *)

Since: 4.7.0.0

Methods

fmap :: (a -> b) -> Proxy * a -> Proxy * b Source

(<$) :: a -> Proxy * b -> Proxy * a Source

Applicative (Proxy *)

Since: 4.7.0.0

Methods

pure :: a -> Proxy * a Source

(<*>) :: Proxy * (a -> b) -> Proxy * a -> Proxy * b Source

liftA2 :: (a -> b -> c) -> Proxy * a -> Proxy * b -> Proxy * c Source

(*>) :: Proxy * a -> Proxy * b -> Proxy * b Source

(<*) :: Proxy * a -> Proxy * b -> Proxy * a Source

Foldable (Proxy *)

Since: 4.7.0.0

Methods

fold :: Monoid m => Proxy * m -> m Source

foldMap :: Monoid m => (a -> m) -> Proxy * a -> m Source

foldr :: (a -> b -> b) -> b -> Proxy * a -> b Source

foldr' :: (a -> b -> b) -> b -> Proxy * a -> b Source

foldl :: (b -> a -> b) -> b -> Proxy * a -> b Source

foldl' :: (b -> a -> b) -> b -> Proxy * a -> b Source

foldr1 :: (a -> a -> a) -> Proxy * a -> a Source

foldl1 :: (a -> a -> a) -> Proxy * a -> a Source

toList :: Proxy * a -> [a] Source

null :: Proxy * a -> Bool Source

length :: Proxy * a -> Int Source

elem :: Eq a => a -> Proxy * a -> Bool Source

maximum :: Ord a => Proxy * a -> a Source

minimum :: Ord a => Proxy * a -> a Source

sum :: Num a => Proxy * a -> a Source

product :: Num a => Proxy * a -> a Source

Traversable (Proxy *)

Since: 4.7.0.0

Methods

traverse :: Applicative f => (a -> f b) -> Proxy * a -> f (Proxy * b) Source

sequenceA :: Applicative f => Proxy * (f a) -> f (Proxy * a) Source

mapM :: Monad m => (a -> m b) -> Proxy * a -> m (Proxy * b) Source

sequence :: Monad m => Proxy * (m a) -> m (Proxy * a) Source

MonadPlus (Proxy *)

Since: 4.9.0.0

Methods

mzero :: Proxy * a Source

mplus :: Proxy * a -> Proxy * a -> Proxy * a Source

Alternative (Proxy *)

Since: 4.9.0.0

Methods

empty :: Proxy * a Source

(<|>) :: Proxy * a -> Proxy * a -> Proxy * a Source

some :: Proxy * a -> Proxy * [a] Source

many :: Proxy * a -> Proxy * [a] Source

MonadZip (Proxy *)

Since: 4.9.0.0

Methods

mzip :: Proxy * a -> Proxy * b -> Proxy * (a, b) Source

mzipWith :: (a -> b -> c) -> Proxy * a -> Proxy * b -> Proxy * c Source

munzip :: Proxy * (a, b) -> (Proxy * a, Proxy * b) Source

Show1 (Proxy *)

Since: 4.9.0.0

Methods

liftShowsPrec :: (Int -> a -> ShowS) -> ([a] -> ShowS) -> Int -> Proxy * a -> ShowS Source

liftShowList :: (Int -> a -> ShowS) -> ([a] -> ShowS) -> [Proxy * a] -> ShowS Source

Read1 (Proxy *)

Since: 4.9.0.0

Methods

liftReadsPrec :: (Int -> ReadS a) -> ReadS [a] -> Int -> ReadS (Proxy * a) Source

liftReadList :: (Int -> ReadS a) -> ReadS [a] -> ReadS [Proxy * a] Source

liftReadPrec :: ReadPrec a -> ReadPrec [a] -> ReadPrec (Proxy * a) Source

liftReadListPrec :: ReadPrec a -> ReadPrec [a] -> ReadPrec [Proxy * a] Source

Ord1 (Proxy *)

Since: 4.9.0.0

Methods

liftCompare :: (a -> b -> Ordering) -> Proxy * a -> Proxy * b -> Ordering Source

Eq1 (Proxy *)

Since: 4.9.0.0

Methods

liftEq :: (a -> b -> Bool) -> Proxy * a -> Proxy * b -> Bool Source

Bounded (Proxy k t)

Methods

minBound :: Proxy k t Source

maxBound :: Proxy k t Source

Enum (Proxy k s)

Since: 4.7.0.0

Methods

succ :: Proxy k s -> Proxy k s Source

pred :: Proxy k s -> Proxy k s Source

toEnum :: Int -> Proxy k s Source

fromEnum :: Proxy k s -> Int Source

enumFrom :: Proxy k s -> [Proxy k s] Source

enumFromThen :: Proxy k s -> Proxy k s -> [Proxy k s] Source

enumFromTo :: Proxy k s -> Proxy k s -> [Proxy k s] Source

enumFromThenTo :: Proxy k s -> Proxy k s -> Proxy k s -> [Proxy k s] Source

Eq (Proxy k s)

Since: 4.7.0.0

Methods

(==) :: Proxy k s -> Proxy k s -> Bool Source

(/=) :: Proxy k s -> Proxy k s -> Bool Source

Data t => Data (Proxy * t)

Since: 4.7.0.0

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Proxy * t -> c (Proxy * t) Source

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c (Proxy * t) Source

toConstr :: Proxy * t -> Constr Source

dataTypeOf :: Proxy * t -> DataType Source

dataCast1 :: Typeable (* -> *) t => (forall d. Data d => c (t d)) -> Maybe (c (Proxy * t)) Source

dataCast2 :: Typeable (* -> * -> *) t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c (Proxy * t)) Source

gmapT :: (forall b. Data b => b -> b) -> Proxy * t -> Proxy * t Source

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Proxy * t -> r Source

gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Proxy * t -> r Source

gmapQ :: (forall d. Data d => d -> u) -> Proxy * t -> [u] Source

gmapQi :: Int -> (forall d. Data d => d -> u) -> Proxy * t -> u Source

gmapM :: Monad m => (forall d. Data d => d -> m d) -> Proxy * t -> m (Proxy * t) Source

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Proxy * t -> m (Proxy * t) Source

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Proxy * t -> m (Proxy * t) Source

Ord (Proxy k s)

Since: 4.7.0.0

Methods

compare :: Proxy k s -> Proxy k s -> Ordering Source

(<) :: Proxy k s -> Proxy k s -> Bool Source

(<=) :: Proxy k s -> Proxy k s -> Bool Source

(>) :: Proxy k s -> Proxy k s -> Bool Source

(>=) :: Proxy k s -> Proxy k s -> Bool Source

max :: Proxy k s -> Proxy k s -> Proxy k s Source

min :: Proxy k s -> Proxy k s -> Proxy k s Source

Read (Proxy k s)

Since: 4.7.0.0

Show (Proxy k s)

Since: 4.7.0.0

Methods

showsPrec :: Int -> Proxy k s -> ShowS Source

show :: Proxy k s -> String Source

showList :: [Proxy k s] -> ShowS Source

Ix (Proxy k s)

Since: 4.7.0.0

Methods

range :: (Proxy k s, Proxy k s) -> [Proxy k s] Source

index :: (Proxy k s, Proxy k s) -> Proxy k s -> Int Source

unsafeIndex :: (Proxy k s, Proxy k s) -> Proxy k s -> Int

inRange :: (Proxy k s, Proxy k s) -> Proxy k s -> Bool Source

rangeSize :: (Proxy k s, Proxy k s) -> Int Source

unsafeRangeSize :: (Proxy k s, Proxy k s) -> Int

Generic (Proxy k t)

Associated Types

type Rep (Proxy k t) :: * -> * Source

Methods

from :: Proxy k t -> Rep (Proxy k t) x Source

to :: Rep (Proxy k t) x -> Proxy k t Source

Semigroup (Proxy k s)

Since: 4.9.0.0

Methods

(<>) :: Proxy k s -> Proxy k s -> Proxy k s Source

sconcat :: NonEmpty (Proxy k s) -> Proxy k s Source

stimes :: Integral b => b -> Proxy k s -> Proxy k s Source

Monoid (Proxy k s)

Since: 4.7.0.0

Methods

mempty :: Proxy k s Source

mappend :: Proxy k s -> Proxy k s -> Proxy k s Source

mconcat :: [Proxy k s] -> Proxy k s Source

type Rep1 k (Proxy k)
type Rep1 k (Proxy k) = D1 k (MetaData "Proxy" "Data.Proxy" "base" False) (C1 k (MetaCons "Proxy" PrefixI False) (U1 k))
type Rep (Proxy k t)
type Rep (Proxy k t) = D1 * (MetaData "Proxy" "Data.Proxy" "base" False) (C1 * (MetaCons "Proxy" PrefixI False) (U1 *))

asProxyTypeOf :: a -> proxy a -> a Source

asProxyTypeOf is a type-restricted version of const. It is usually used as an infix operator, and its typing forces its first argument (which is usually overloaded) to have the same type as the tag of the second.

data KProxy (t :: *) Source

A concrete, promotable proxy type, for use at the kind level There are no instances for this because it is intended at the kind level only

Constructors

KProxy

© The University of Glasgow and others
Licensed under a BSD-style license (see top of the page).
https://downloads.haskell.org/~ghc/8.2.1/docs/html/libraries/base-4.10.0.0/Data-Proxy.html