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|
{-# LANGUAGE DeriveDataTypeable, FlexibleInstances, MultiParamTypeClasses,
CPP #-}
#if __GLASGOW_HASKELL__ >= 708
{-# LANGUAGE RoleAnnotations #-}
#endif
{-# OPTIONS_HADDOCK hide #-}
-----------------------------------------------------------------------------
-- |
-- Module : Data.Array.IO.Internal
-- Copyright : (c) The University of Glasgow 2001-2012
-- License : BSD-style (see the file libraries/base/LICENSE)
--
-- Maintainer : libraries@haskell.org
-- Stability : experimental
-- Portability : non-portable (uses Data.Array.Base)
--
-- Mutable boxed and unboxed arrays in the IO monad.
--
-----------------------------------------------------------------------------
module Data.Array.IO.Internals (
IOArray(..), -- instance of: Eq, Typeable
IOUArray(..), -- instance of: Eq, Typeable
castIOUArray, -- :: IOUArray ix a -> IO (IOUArray ix b)
unsafeThawIOUArray,
) where
import Data.Int
import Data.Word
import Data.Typeable
import Control.Monad.ST ( RealWorld, stToIO )
import Foreign.Ptr ( Ptr, FunPtr )
import Foreign.StablePtr ( StablePtr )
#if __GLASGOW_HASKELL__ < 711
import Data.Ix
#endif
import Data.Array.Base
import GHC.IOArray (IOArray(..))
-----------------------------------------------------------------------------
-- Flat unboxed mutable arrays (IO monad)
-- | Mutable, unboxed, strict arrays in the 'IO' monad. The type
-- arguments are as follows:
--
-- * @i@: the index type of the array (should be an instance of 'Ix')
--
-- * @e@: the element type of the array. Only certain element types
-- are supported: see "Data.Array.MArray" for a list of instances.
--
newtype IOUArray i e = IOUArray (STUArray RealWorld i e)
deriving Typeable
#if __GLASGOW_HASKELL__ >= 708
-- Both parameters have class-based invariants. See also #9220.
type role IOUArray nominal nominal
#endif
instance Eq (IOUArray i e) where
IOUArray s1 == IOUArray s2 = s1 == s2
instance MArray IOUArray Bool IO where
{-# INLINE getBounds #-}
getBounds (IOUArray arr) = stToIO $ getBounds arr
{-# INLINE getNumElements #-}
getNumElements (IOUArray arr) = stToIO $ getNumElements arr
{-# INLINE newArray #-}
newArray lu initialValue = stToIO $ do
marr <- newArray lu initialValue; return (IOUArray marr)
{-# INLINE unsafeNewArray_ #-}
unsafeNewArray_ lu = stToIO $ do
marr <- unsafeNewArray_ lu; return (IOUArray marr)
{-# INLINE newArray_ #-}
newArray_ = unsafeNewArray_
{-# INLINE unsafeRead #-}
unsafeRead (IOUArray marr) i = stToIO (unsafeRead marr i)
{-# INLINE unsafeWrite #-}
unsafeWrite (IOUArray marr) i e = stToIO (unsafeWrite marr i e)
instance MArray IOUArray Char IO where
{-# INLINE getBounds #-}
getBounds (IOUArray arr) = stToIO $ getBounds arr
{-# INLINE getNumElements #-}
getNumElements (IOUArray arr) = stToIO $ getNumElements arr
{-# INLINE newArray #-}
newArray lu initialValue = stToIO $ do
marr <- newArray lu initialValue; return (IOUArray marr)
{-# INLINE unsafeNewArray_ #-}
unsafeNewArray_ lu = stToIO $ do
marr <- unsafeNewArray_ lu; return (IOUArray marr)
{-# INLINE newArray_ #-}
newArray_ = unsafeNewArray_
{-# INLINE unsafeRead #-}
unsafeRead (IOUArray marr) i = stToIO (unsafeRead marr i)
{-# INLINE unsafeWrite #-}
unsafeWrite (IOUArray marr) i e = stToIO (unsafeWrite marr i e)
instance MArray IOUArray Int IO where
{-# INLINE getBounds #-}
getBounds (IOUArray arr) = stToIO $ getBounds arr
{-# INLINE getNumElements #-}
getNumElements (IOUArray arr) = stToIO $ getNumElements arr
{-# INLINE newArray #-}
newArray lu initialValue = stToIO $ do
marr <- newArray lu initialValue; return (IOUArray marr)
{-# INLINE unsafeNewArray_ #-}
unsafeNewArray_ lu = stToIO $ do
marr <- unsafeNewArray_ lu; return (IOUArray marr)
{-# INLINE newArray_ #-}
newArray_ = unsafeNewArray_
{-# INLINE unsafeRead #-}
unsafeRead (IOUArray marr) i = stToIO (unsafeRead marr i)
{-# INLINE unsafeWrite #-}
unsafeWrite (IOUArray marr) i e = stToIO (unsafeWrite marr i e)
instance MArray IOUArray Word IO where
{-# INLINE getBounds #-}
getBounds (IOUArray arr) = stToIO $ getBounds arr
{-# INLINE getNumElements #-}
getNumElements (IOUArray arr) = stToIO $ getNumElements arr
{-# INLINE newArray #-}
newArray lu initialValue = stToIO $ do
marr <- newArray lu initialValue; return (IOUArray marr)
{-# INLINE unsafeNewArray_ #-}
unsafeNewArray_ lu = stToIO $ do
marr <- unsafeNewArray_ lu; return (IOUArray marr)
{-# INLINE newArray_ #-}
newArray_ = unsafeNewArray_
{-# INLINE unsafeRead #-}
unsafeRead (IOUArray marr) i = stToIO (unsafeRead marr i)
{-# INLINE unsafeWrite #-}
unsafeWrite (IOUArray marr) i e = stToIO (unsafeWrite marr i e)
instance MArray IOUArray (Ptr a) IO where
{-# INLINE getBounds #-}
getBounds (IOUArray arr) = stToIO $ getBounds arr
{-# INLINE getNumElements #-}
getNumElements (IOUArray arr) = stToIO $ getNumElements arr
{-# INLINE newArray #-}
newArray lu initialValue = stToIO $ do
marr <- newArray lu initialValue; return (IOUArray marr)
{-# INLINE unsafeNewArray_ #-}
unsafeNewArray_ lu = stToIO $ do
marr <- unsafeNewArray_ lu; return (IOUArray marr)
{-# INLINE newArray_ #-}
newArray_ = unsafeNewArray_
{-# INLINE unsafeRead #-}
unsafeRead (IOUArray marr) i = stToIO (unsafeRead marr i)
{-# INLINE unsafeWrite #-}
unsafeWrite (IOUArray marr) i e = stToIO (unsafeWrite marr i e)
instance MArray IOUArray (FunPtr a) IO where
{-# INLINE getBounds #-}
getBounds (IOUArray arr) = stToIO $ getBounds arr
{-# INLINE getNumElements #-}
getNumElements (IOUArray arr) = stToIO $ getNumElements arr
{-# INLINE newArray #-}
newArray lu initialValue = stToIO $ do
marr <- newArray lu initialValue; return (IOUArray marr)
{-# INLINE unsafeNewArray_ #-}
unsafeNewArray_ lu = stToIO $ do
marr <- unsafeNewArray_ lu; return (IOUArray marr)
{-# INLINE newArray_ #-}
newArray_ = unsafeNewArray_
{-# INLINE unsafeRead #-}
unsafeRead (IOUArray marr) i = stToIO (unsafeRead marr i)
{-# INLINE unsafeWrite #-}
unsafeWrite (IOUArray marr) i e = stToIO (unsafeWrite marr i e)
instance MArray IOUArray Float IO where
{-# INLINE getBounds #-}
getBounds (IOUArray arr) = stToIO $ getBounds arr
{-# INLINE getNumElements #-}
getNumElements (IOUArray arr) = stToIO $ getNumElements arr
{-# INLINE newArray #-}
newArray lu initialValue = stToIO $ do
marr <- newArray lu initialValue; return (IOUArray marr)
{-# INLINE unsafeNewArray_ #-}
unsafeNewArray_ lu = stToIO $ do
marr <- unsafeNewArray_ lu; return (IOUArray marr)
{-# INLINE newArray_ #-}
newArray_ = unsafeNewArray_
{-# INLINE unsafeRead #-}
unsafeRead (IOUArray marr) i = stToIO (unsafeRead marr i)
{-# INLINE unsafeWrite #-}
unsafeWrite (IOUArray marr) i e = stToIO (unsafeWrite marr i e)
instance MArray IOUArray Double IO where
{-# INLINE getBounds #-}
getBounds (IOUArray arr) = stToIO $ getBounds arr
{-# INLINE getNumElements #-}
getNumElements (IOUArray arr) = stToIO $ getNumElements arr
{-# INLINE newArray #-}
newArray lu initialValue = stToIO $ do
marr <- newArray lu initialValue; return (IOUArray marr)
{-# INLINE unsafeNewArray_ #-}
unsafeNewArray_ lu = stToIO $ do
marr <- unsafeNewArray_ lu; return (IOUArray marr)
{-# INLINE newArray_ #-}
newArray_ = unsafeNewArray_
{-# INLINE unsafeRead #-}
unsafeRead (IOUArray marr) i = stToIO (unsafeRead marr i)
{-# INLINE unsafeWrite #-}
unsafeWrite (IOUArray marr) i e = stToIO (unsafeWrite marr i e)
instance MArray IOUArray (StablePtr a) IO where
{-# INLINE getBounds #-}
getBounds (IOUArray arr) = stToIO $ getBounds arr
{-# INLINE getNumElements #-}
getNumElements (IOUArray arr) = stToIO $ getNumElements arr
{-# INLINE newArray #-}
newArray lu initialValue = stToIO $ do
marr <- newArray lu initialValue; return (IOUArray marr)
{-# INLINE unsafeNewArray_ #-}
unsafeNewArray_ lu = stToIO $ do
marr <- unsafeNewArray_ lu; return (IOUArray marr)
{-# INLINE newArray_ #-}
newArray_ = unsafeNewArray_
{-# INLINE unsafeRead #-}
unsafeRead (IOUArray marr) i = stToIO (unsafeRead marr i)
{-# INLINE unsafeWrite #-}
unsafeWrite (IOUArray marr) i e = stToIO (unsafeWrite marr i e)
instance MArray IOUArray Int8 IO where
{-# INLINE getBounds #-}
getBounds (IOUArray arr) = stToIO $ getBounds arr
{-# INLINE getNumElements #-}
getNumElements (IOUArray arr) = stToIO $ getNumElements arr
{-# INLINE newArray #-}
newArray lu initialValue = stToIO $ do
marr <- newArray lu initialValue; return (IOUArray marr)
{-# INLINE unsafeNewArray_ #-}
unsafeNewArray_ lu = stToIO $ do
marr <- unsafeNewArray_ lu; return (IOUArray marr)
{-# INLINE newArray_ #-}
newArray_ = unsafeNewArray_
{-# INLINE unsafeRead #-}
unsafeRead (IOUArray marr) i = stToIO (unsafeRead marr i)
{-# INLINE unsafeWrite #-}
unsafeWrite (IOUArray marr) i e = stToIO (unsafeWrite marr i e)
instance MArray IOUArray Int16 IO where
{-# INLINE getBounds #-}
getBounds (IOUArray arr) = stToIO $ getBounds arr
{-# INLINE getNumElements #-}
getNumElements (IOUArray arr) = stToIO $ getNumElements arr
{-# INLINE newArray #-}
newArray lu initialValue = stToIO $ do
marr <- newArray lu initialValue; return (IOUArray marr)
{-# INLINE unsafeNewArray_ #-}
unsafeNewArray_ lu = stToIO $ do
marr <- unsafeNewArray_ lu; return (IOUArray marr)
{-# INLINE newArray_ #-}
newArray_ = unsafeNewArray_
{-# INLINE unsafeRead #-}
unsafeRead (IOUArray marr) i = stToIO (unsafeRead marr i)
{-# INLINE unsafeWrite #-}
unsafeWrite (IOUArray marr) i e = stToIO (unsafeWrite marr i e)
instance MArray IOUArray Int32 IO where
{-# INLINE getBounds #-}
getBounds (IOUArray arr) = stToIO $ getBounds arr
{-# INLINE getNumElements #-}
getNumElements (IOUArray arr) = stToIO $ getNumElements arr
{-# INLINE newArray #-}
newArray lu initialValue = stToIO $ do
marr <- newArray lu initialValue; return (IOUArray marr)
{-# INLINE unsafeNewArray_ #-}
unsafeNewArray_ lu = stToIO $ do
marr <- unsafeNewArray_ lu; return (IOUArray marr)
{-# INLINE newArray_ #-}
newArray_ = unsafeNewArray_
{-# INLINE unsafeRead #-}
unsafeRead (IOUArray marr) i = stToIO (unsafeRead marr i)
{-# INLINE unsafeWrite #-}
unsafeWrite (IOUArray marr) i e = stToIO (unsafeWrite marr i e)
instance MArray IOUArray Int64 IO where
{-# INLINE getBounds #-}
getBounds (IOUArray arr) = stToIO $ getBounds arr
{-# INLINE getNumElements #-}
getNumElements (IOUArray arr) = stToIO $ getNumElements arr
{-# INLINE newArray #-}
newArray lu initialValue = stToIO $ do
marr <- newArray lu initialValue; return (IOUArray marr)
{-# INLINE unsafeNewArray_ #-}
unsafeNewArray_ lu = stToIO $ do
marr <- unsafeNewArray_ lu; return (IOUArray marr)
{-# INLINE newArray_ #-}
newArray_ = unsafeNewArray_
{-# INLINE unsafeRead #-}
unsafeRead (IOUArray marr) i = stToIO (unsafeRead marr i)
{-# INLINE unsafeWrite #-}
unsafeWrite (IOUArray marr) i e = stToIO (unsafeWrite marr i e)
instance MArray IOUArray Word8 IO where
{-# INLINE getBounds #-}
getBounds (IOUArray arr) = stToIO $ getBounds arr
{-# INLINE getNumElements #-}
getNumElements (IOUArray arr) = stToIO $ getNumElements arr
{-# INLINE newArray #-}
newArray lu initialValue = stToIO $ do
marr <- newArray lu initialValue; return (IOUArray marr)
{-# INLINE unsafeNewArray_ #-}
unsafeNewArray_ lu = stToIO $ do
marr <- unsafeNewArray_ lu; return (IOUArray marr)
{-# INLINE newArray_ #-}
newArray_ = unsafeNewArray_
{-# INLINE unsafeRead #-}
unsafeRead (IOUArray marr) i = stToIO (unsafeRead marr i)
{-# INLINE unsafeWrite #-}
unsafeWrite (IOUArray marr) i e = stToIO (unsafeWrite marr i e)
instance MArray IOUArray Word16 IO where
{-# INLINE getBounds #-}
getBounds (IOUArray arr) = stToIO $ getBounds arr
{-# INLINE getNumElements #-}
getNumElements (IOUArray arr) = stToIO $ getNumElements arr
{-# INLINE newArray #-}
newArray lu initialValue = stToIO $ do
marr <- newArray lu initialValue; return (IOUArray marr)
{-# INLINE unsafeNewArray_ #-}
unsafeNewArray_ lu = stToIO $ do
marr <- unsafeNewArray_ lu; return (IOUArray marr)
{-# INLINE newArray_ #-}
newArray_ = unsafeNewArray_
{-# INLINE unsafeRead #-}
unsafeRead (IOUArray marr) i = stToIO (unsafeRead marr i)
{-# INLINE unsafeWrite #-}
unsafeWrite (IOUArray marr) i e = stToIO (unsafeWrite marr i e)
instance MArray IOUArray Word32 IO where
{-# INLINE getBounds #-}
getBounds (IOUArray arr) = stToIO $ getBounds arr
{-# INLINE getNumElements #-}
getNumElements (IOUArray arr) = stToIO $ getNumElements arr
{-# INLINE newArray #-}
newArray lu initialValue = stToIO $ do
marr <- newArray lu initialValue; return (IOUArray marr)
{-# INLINE unsafeNewArray_ #-}
unsafeNewArray_ lu = stToIO $ do
marr <- unsafeNewArray_ lu; return (IOUArray marr)
{-# INLINE newArray_ #-}
newArray_ = unsafeNewArray_
{-# INLINE unsafeRead #-}
unsafeRead (IOUArray marr) i = stToIO (unsafeRead marr i)
{-# INLINE unsafeWrite #-}
unsafeWrite (IOUArray marr) i e = stToIO (unsafeWrite marr i e)
instance MArray IOUArray Word64 IO where
{-# INLINE getBounds #-}
getBounds (IOUArray arr) = stToIO $ getBounds arr
{-# INLINE getNumElements #-}
getNumElements (IOUArray arr) = stToIO $ getNumElements arr
{-# INLINE newArray #-}
newArray lu initialValue = stToIO $ do
marr <- newArray lu initialValue; return (IOUArray marr)
{-# INLINE unsafeNewArray_ #-}
unsafeNewArray_ lu = stToIO $ do
marr <- unsafeNewArray_ lu; return (IOUArray marr)
{-# INLINE newArray_ #-}
newArray_ = unsafeNewArray_
{-# INLINE unsafeRead #-}
unsafeRead (IOUArray marr) i = stToIO (unsafeRead marr i)
{-# INLINE unsafeWrite #-}
unsafeWrite (IOUArray marr) i e = stToIO (unsafeWrite marr i e)
-- | Casts an 'IOUArray' with one element type into one with a
-- different element type. All the elements of the resulting array
-- are undefined (unless you know what you\'re doing...).
castIOUArray :: IOUArray ix a -> IO (IOUArray ix b)
castIOUArray (IOUArray marr) = stToIO $ do
marr' <- castSTUArray marr
return (IOUArray marr')
{-# INLINE unsafeThawIOUArray #-}
#if __GLASGOW_HASKELL__ >= 711
unsafeThawIOUArray :: UArray ix e -> IO (IOUArray ix e)
#else
unsafeThawIOUArray :: Ix ix => UArray ix e -> IO (IOUArray ix e)
#endif
unsafeThawIOUArray arr = stToIO $ do
marr <- unsafeThawSTUArray arr
return (IOUArray marr)
{-# RULES
"unsafeThaw/IOUArray" unsafeThaw = unsafeThawIOUArray
#-}
#if __GLASGOW_HASKELL__ >= 711
thawIOUArray :: UArray ix e -> IO (IOUArray ix e)
#else
thawIOUArray :: Ix ix => UArray ix e -> IO (IOUArray ix e)
#endif
thawIOUArray arr = stToIO $ do
marr <- thawSTUArray arr
return (IOUArray marr)
{-# RULES
"thaw/IOUArray" thaw = thawIOUArray
#-}
{-# INLINE unsafeFreezeIOUArray #-}
#if __GLASGOW_HASKELL__ >= 711
unsafeFreezeIOUArray :: IOUArray ix e -> IO (UArray ix e)
#else
unsafeFreezeIOUArray :: Ix ix => IOUArray ix e -> IO (UArray ix e)
#endif
unsafeFreezeIOUArray (IOUArray marr) = stToIO (unsafeFreezeSTUArray marr)
{-# RULES
"unsafeFreeze/IOUArray" unsafeFreeze = unsafeFreezeIOUArray
#-}
#if __GLASGOW_HASKELL__ >= 711
freezeIOUArray :: IOUArray ix e -> IO (UArray ix e)
#else
freezeIOUArray :: Ix ix => IOUArray ix e -> IO (UArray ix e)
#endif
freezeIOUArray (IOUArray marr) = stToIO (freezeSTUArray marr)
{-# RULES
"freeze/IOUArray" freeze = freezeIOUArray
#-}
|
