-
--- ---------------------------------------------------------------------------
--- Variables
-
-newSTRef :: a -> ST s (STRef.STRef s a)
-readSTRef :: STRef.STRef s a -> ST s a
-writeSTRef :: STRef.STRef s a -> a -> ST s ()
-
-newSTRef = strictToLazyST . STRef.newSTRef
-readSTRef = strictToLazyST . STRef.readSTRef
-writeSTRef r a = strictToLazyST (STRef.writeSTRef r a)
-
--- --------------------------------------------------------------------------
--- Arrays
-
-newSTArray :: Ix ix => (ix,ix) -> elt -> ST s (STArray.STArray s ix elt)
-readSTArray :: Ix ix => STArray.STArray s ix elt -> ix -> ST s elt
-writeSTArray :: Ix ix => STArray.STArray s ix elt -> ix -> elt -> ST s ()
-boundsSTArray :: Ix ix => STArray.STArray s ix elt -> (ix, ix)
-thawSTArray :: Ix ix => Array ix elt -> ST s (STArray.STArray s ix elt)
-freezeSTArray :: Ix ix => STArray.STArray s ix elt -> ST s (Array ix elt)
-unsafeFreezeSTArray :: Ix ix => STArray.STArray s ix elt -> ST s (Array ix elt)
-
-#ifdef __GLASGOW_HASKELL__
-
-newSTArray ixs init = strictToLazyST (STArray.newSTArray ixs init)
-
-readSTArray arr ix = strictToLazyST (STArray.readSTArray arr ix)
-writeSTArray arr ix v = strictToLazyST (STArray.writeSTArray arr ix v)
-boundsSTArray arr = STArray.boundsSTArray arr
-thawSTArray arr = strictToLazyST (STArray.thawSTArray arr)
-freezeSTArray arr = strictToLazyST (STArray.freezeSTArray arr)
-unsafeFreezeSTArray arr = strictToLazyST (STArray.unsafeFreezeSTArray arr)
-unsafeThawSTArray arr = strictToLazyST (STArray.unsafeThawSTArray arr)
-#endif
-
-
-#ifdef __HUGS__
-newSTArray ixs elt = do
- { arr <- strictToLazyST (primNewArray (rangeSize ixs) elt)
- ; return (STArray ixs arr)
- }
-
-boundsSTArray (STArray ixs arr) = ixs
-readSTArray (STArray ixs arr) ix
- = strictToLazyST (primReadArray arr (index ixs ix))
-writeSTArray (STArray ixs arr) ix elt
- = strictToLazyST (primWriteArray arr (index ixs ix) elt)
-freezeSTArray (STArray ixs arr) = do
- { arr' <- strictToLazyST (primFreezeArray arr)
- ; return (Array ixs arr')
- }
-
-unsafeFreezeSTArray (STArray ixs arr) = do
- { arr' <- strictToLazyST (primUnsafeFreezeArray arr)
- ; return (Array ixs arr')
- }
-
-thawSTArray (Array ixs arr) = do
- { arr' <- strictToLazyST (primThawArray arr)
- ; return (STArray ixs arr')
- }
-
-primFreezeArray :: PrimMutableArray s a -> ST.ST s (PrimArray a)
-primFreezeArray arr = do
- { let n = primSizeMutableArray arr
- ; arr' <- primNewArray n arrEleBottom
- ; mapM_ (copy arr arr') [0..n-1]
- ; primUnsafeFreezeArray arr'
- }
- where
- copy arr arr' i = do { x <- primReadArray arr i; primWriteArray arr' i x }
- arrEleBottom = error "primFreezeArray: panic"
-
-primThawArray :: PrimArray a -> ST.ST s (PrimMutableArray s a)
-primThawArray arr = do
- { let n = primSizeArray arr
- ; arr' <- primNewArray n arrEleBottom
- ; mapM_ (copy arr arr') [0..n-1]
- ; return arr'
- }
- where
- copy arr arr' i = primWriteArray arr' i (primIndexArray arr i)
- arrEleBottom = error "primFreezeArray: panic"