lens-4.15.4: Lenses, Folds and Traversals

Copyright(C) 2012-2016 Edward Kmett (C) 2017 Ryan Scott
LicenseBSD-style (see the file LICENSE)
MaintainerEdward Kmett <ekmett@gmail.com>
Stabilityexperimental
Portabilitynon-portable
Safe HaskellSafe
LanguageHaskell98

Control.Lens.Internal.CTypes

Description

In Control.Lens.Wrapped, we need to muck around with the internals of the newtypes in Foreign.C.Types. Unfortunately, the exact types used varies wildly from platform to platform, so trying to manage the imports necessary to bring these types in scope can be unwieldy.

To make things easier, we use this module as a way to import everything carte blanche that might be used internally in Foreign.C.Types. For now, this consists of all the exports from the Data.Int and Data.Word modules, as well as the Ptr type.

Synopsis

Documentation

module Data.Int

data Ptr a #

A value of type Ptr a represents a pointer to an object, or an array of objects, which may be marshalled to or from Haskell values of type a.

The type a will often be an instance of class Storable which provides the marshalling operations. However this is not essential, and you can provide your own operations to access the pointer. For example you might write small foreign functions to get or set the fields of a C struct.

Instances
IArray UArray (Ptr a) 
Instance details

Methods

bounds :: Ix i => UArray i (Ptr a) -> (i, i) #

numElements :: Ix i => UArray i (Ptr a) -> Int

unsafeArray :: Ix i => (i, i) -> [(Int, Ptr a)] -> UArray i (Ptr a)

unsafeAt :: Ix i => UArray i (Ptr a) -> Int -> Ptr a

unsafeReplace :: Ix i => UArray i (Ptr a) -> [(Int, Ptr a)] -> UArray i (Ptr a)

unsafeAccum :: Ix i => (Ptr a -> e' -> Ptr a) -> UArray i (Ptr a) -> [(Int, e')] -> UArray i (Ptr a)

unsafeAccumArray :: Ix i => (Ptr a -> e' -> Ptr a) -> Ptr a -> (i, i) -> [(Int, e')] -> UArray i (Ptr a)

Generic1 k (URec k (Ptr ())) 
Instance details

Associated Types

type Rep1 (URec k (Ptr ())) (f :: URec k (Ptr ()) -> *) :: k -> * #

Methods

from1 :: f a -> Rep1 (URec k (Ptr ())) f a #

to1 :: Rep1 (URec k (Ptr ())) f a -> f a #

Eq (Ptr a) 
Instance details

Methods

(==) :: Ptr a -> Ptr a -> Bool #

(/=) :: Ptr a -> Ptr a -> Bool #

Data a => Data (Ptr a)

Since: 4.8.0.0

Instance details

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Ptr a -> c (Ptr a) #

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c (Ptr a) #

toConstr :: Ptr a -> Constr #

dataTypeOf :: Ptr a -> DataType #

dataCast1 :: Typeable (* -> *) t => (forall d. Data d => c (t d)) -> Maybe (c (Ptr a)) #

dataCast2 :: Typeable (* -> * -> *) t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c (Ptr a)) #

gmapT :: (forall b. Data b => b -> b) -> Ptr a -> Ptr a #

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Ptr a -> r #

gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Ptr a -> r #

gmapQ :: (forall d. Data d => d -> u) -> Ptr a -> [u] #

gmapQi :: Int -> (forall d. Data d => d -> u) -> Ptr a -> u #

gmapM :: Monad m => (forall d. Data d => d -> m d) -> Ptr a -> m (Ptr a) #

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Ptr a -> m (Ptr a) #

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Ptr a -> m (Ptr a) #

Ord (Ptr a) 
Instance details

Methods

compare :: Ptr a -> Ptr a -> Ordering #

(<) :: Ptr a -> Ptr a -> Bool #

(<=) :: Ptr a -> Ptr a -> Bool #

(>) :: Ptr a -> Ptr a -> Bool #

(>=) :: Ptr a -> Ptr a -> Bool #

max :: Ptr a -> Ptr a -> Ptr a #

min :: Ptr a -> Ptr a -> Ptr a #

Show (Ptr a)

Since: 2.1

Instance details

Methods

showsPrec :: Int -> Ptr a -> ShowS #

show :: Ptr a -> String #

showList :: [Ptr a] -> ShowS #

Storable (Ptr a)

Since: 2.1

Instance details

Methods

sizeOf :: Ptr a -> Int #

alignment :: Ptr a -> Int #

peekElemOff :: Ptr (Ptr a) -> Int -> IO (Ptr a) #

pokeElemOff :: Ptr (Ptr a) -> Int -> Ptr a -> IO () #

peekByteOff :: Ptr b -> Int -> IO (Ptr a) #

pokeByteOff :: Ptr b -> Int -> Ptr a -> IO () #

peek :: Ptr (Ptr a) -> IO (Ptr a) #

poke :: Ptr (Ptr a) -> Ptr a -> IO () #

Hashable (Ptr a) 
Instance details

Methods

hashWithSalt :: Int -> Ptr a -> Int #

hash :: Ptr a -> Int #

Prim (Ptr a) 
Instance details
Storable a => HasSetter (Ptr a) a 
Instance details

Methods

($=) :: MonadIO m => Ptr a -> a -> m () #

Storable a => HasGetter (Ptr a) a 
Instance details

Methods

get :: MonadIO m => Ptr a -> m a #

Storable a => HasUpdate (Ptr a) a a 
Instance details

Methods

($~) :: MonadIO m => Ptr a -> (a -> a) -> m () #

($~!) :: MonadIO m => Ptr a -> (a -> a) -> m () #

MArray (STUArray s) (Ptr a) (ST s) 
Instance details

Methods

getBounds :: Ix i => STUArray s i (Ptr a) -> ST s (i, i) #

getNumElements :: Ix i => STUArray s i (Ptr a) -> ST s Int

newArray :: Ix i => (i, i) -> Ptr a -> ST s (STUArray s i (Ptr a)) #

newArray_ :: Ix i => (i, i) -> ST s (STUArray s i (Ptr a)) #

unsafeNewArray_ :: Ix i => (i, i) -> ST s (STUArray s i (Ptr a))

unsafeRead :: Ix i => STUArray s i (Ptr a) -> Int -> ST s (Ptr a)

unsafeWrite :: Ix i => STUArray s i (Ptr a) -> Int -> Ptr a -> ST s ()

Functor (URec * (Ptr ())) 
Instance details

Methods

fmap :: (a -> b) -> URec * (Ptr ()) a -> URec * (Ptr ()) b #

(<$) :: a -> URec * (Ptr ()) b -> URec * (Ptr ()) a #

Foldable (URec * (Ptr ())) 
Instance details

Methods

fold :: Monoid m => URec * (Ptr ()) m -> m #

foldMap :: Monoid m => (a -> m) -> URec * (Ptr ()) a -> m #

foldr :: (a -> b -> b) -> b -> URec * (Ptr ()) a -> b #

foldr' :: (a -> b -> b) -> b -> URec * (Ptr ()) a -> b #

foldl :: (b -> a -> b) -> b -> URec * (Ptr ()) a -> b #

foldl' :: (b -> a -> b) -> b -> URec * (Ptr ()) a -> b #

foldr1 :: (a -> a -> a) -> URec * (Ptr ()) a -> a #

foldl1 :: (a -> a -> a) -> URec * (Ptr ()) a -> a #

toList :: URec * (Ptr ()) a -> [a] #

null :: URec * (Ptr ()) a -> Bool #

length :: URec * (Ptr ()) a -> Int #

elem :: Eq a => a -> URec * (Ptr ()) a -> Bool #

maximum :: Ord a => URec * (Ptr ()) a -> a #

minimum :: Ord a => URec * (Ptr ()) a -> a #

sum :: Num a => URec * (Ptr ()) a -> a #

product :: Num a => URec * (Ptr ()) a -> a #

Traversable (URec * (Ptr ())) 
Instance details

Methods

traverse :: Applicative f => (a -> f b) -> URec * (Ptr ()) a -> f (URec * (Ptr ()) b) #

sequenceA :: Applicative f => URec * (Ptr ()) (f a) -> f (URec * (Ptr ()) a) #

mapM :: Monad m => (a -> m b) -> URec * (Ptr ()) a -> m (URec * (Ptr ()) b) #

sequence :: Monad m => URec * (Ptr ()) (m a) -> m (URec * (Ptr ()) a) #

Eq (URec k (Ptr ()) p) 
Instance details

Methods

(==) :: URec k (Ptr ()) p -> URec k (Ptr ()) p -> Bool #

(/=) :: URec k (Ptr ()) p -> URec k (Ptr ()) p -> Bool #

Ord (URec k (Ptr ()) p) 
Instance details

Methods

compare :: URec k (Ptr ()) p -> URec k (Ptr ()) p -> Ordering #

(<) :: URec k (Ptr ()) p -> URec k (Ptr ()) p -> Bool #

(<=) :: URec k (Ptr ()) p -> URec k (Ptr ()) p -> Bool #

(>) :: URec k (Ptr ()) p -> URec k (Ptr ()) p -> Bool #

(>=) :: URec k (Ptr ()) p -> URec k (Ptr ()) p -> Bool #

max :: URec k (Ptr ()) p -> URec k (Ptr ()) p -> URec k (Ptr ()) p #

min :: URec k (Ptr ()) p -> URec k (Ptr ()) p -> URec k (Ptr ()) p #

Generic (URec k (Ptr ()) p) 
Instance details

Associated Types

type Rep (URec k (Ptr ()) p) :: * -> * #

Methods

from :: URec k (Ptr ()) p -> Rep (URec k (Ptr ()) p) x #

to :: Rep (URec k (Ptr ()) p) x -> URec k (Ptr ()) p #

data URec k (Ptr ())

Used for marking occurrences of Addr#

Since: 4.9.0.0

Instance details
data URec k (Ptr ()) = UAddr {}
type Rep1 k (URec k (Ptr ())) 
Instance details
type Rep1 k (URec k (Ptr ())) = D1 k (MetaData "URec" "GHC.Generics" "base" False) (C1 k (MetaCons "UAddr" PrefixI True) (S1 k (MetaSel (Just Symbol "uAddr#") NoSourceUnpackedness NoSourceStrictness DecidedLazy) (UAddr k)))
type Rep (URec k (Ptr ()) p) 
Instance details
type Rep (URec k (Ptr ()) p) = D1 * (MetaData "URec" "GHC.Generics" "base" False) (C1 * (MetaCons "UAddr" PrefixI True) (S1 * (MetaSel (Just Symbol "uAddr#") NoSourceUnpackedness NoSourceStrictness DecidedLazy) (UAddr *)))

module Data.Word