{-# LANGUAGE UndecidableInstances, IncoherentInstances #-}
{-# OPTIONS_GHC -fno-warn-orphans    #-}
module Data.Repa.Array.Material.Auto.InstList
        ( A             (..)
        , Name          (..)
        , Array         (..))
where
import Data.Repa.Array.Material.Auto.Base       as A
import Data.Repa.Array.Material.Boxed           as A
import Data.Repa.Array.Meta.Window              as A
import Data.Repa.Array.Internals.Bulk           as A
import Data.Repa.Array.Internals.Target         as A
import Data.Repa.Array.Internals.Layout         as A
import Control.Monad
#include "repa-array.h"


----------------------------------------------------------------------------------------------- []
instance Bulk A a => Bulk A [a] where
 data Array A [a]               = AArray_List !(Array B [a])
 layout (AArray_List arr)       = Auto (A.length arr)
 index  (AArray_List arr) ix    = A.index arr ix
 {-# INLINE_ARRAY layout #-}
 {-# INLINE_ARRAY index  #-}

deriving instance Show a => Show (Array A [a])


instance Bulk A a => Windowable A [a] where
 window st len (AArray_List arr) 
  = AArray_List (window st len arr)
 {-# INLINE_ARRAY window #-}


instance  Target A [a] where
 data Buffer A [a]
  = ABuffer_List !(Buffer B [a])

 unsafeNewBuffer (Auto len)     
  = liftM ABuffer_List $ unsafeNewBuffer (Boxed len)
 {-# INLINE_ARRAY unsafeNewBuffer #-}

 unsafeReadBuffer   (ABuffer_List arr) ix
  = unsafeReadBuffer arr ix
 {-# INLINE_ARRAY unsafeReadBuffer #-}

 unsafeWriteBuffer  (ABuffer_List arr) ix x
  = unsafeWriteBuffer arr ix x
 {-# INLINE_ARRAY unsafeWriteBuffer #-}

 unsafeGrowBuffer   (ABuffer_List arr) bump
  = liftM ABuffer_List  $ unsafeGrowBuffer arr bump
 {-# INLINE_ARRAY unsafeGrowBuffer #-}

 unsafeFreezeBuffer (ABuffer_List arr)
  = liftM AArray_List   $ unsafeFreezeBuffer arr 
 {-# INLINE_ARRAY unsafeFreezeBuffer #-}

 unsafeThawBuffer   (AArray_List arr)
  = liftM ABuffer_List  $ unsafeThawBuffer  arr
 {-# INLINE_ARRAY unsafeThawBuffer #-}

 unsafeSliceBuffer st len (ABuffer_List buf)
  = liftM ABuffer_List  $ unsafeSliceBuffer st len buf
 {-# INLINE_ARRAY unsafeSliceBuffer #-}

 touchBuffer (ABuffer_List buf)
  = touchBuffer buf
 {-# INLINE_ARRAY touchBuffer #-}

 bufferLayout (ABuffer_List buf)
  = Auto $ A.extent $ bufferLayout buf
 {-# INLINE_ARRAY bufferLayout #-}


instance Eq a
      => Eq (Array A [a]) where
 (==) (AArray_List arr1) (AArray_List arr2) = arr1 == arr2
 {-# INLINE (==) #-}