[project @ 2003-06-24 09:43:23 by simonmar]

[ghc-hetmet.git] / ghc / compiler / utils / Binary.hs

diff --git a/ghc/compiler/utils/Binary.hs b/ghc/compiler/utils/Binary.hs
index 764f918..690fb56 100644 (file)
--- a/ghc/compiler/utils/Binary.hs
+++ b/ghc/compiler/utils/Binary.hs
@@ -48,6 +48,9 @@ module Binary
 
   ) where
 
+#include "HsVersions.h"
+
+-- The *host* architecture version:
 #include "MachDeps.h"
 
 import {-# SOURCE #-} Module
@@ -58,10 +61,10 @@ import UniqFM
 import FastMutInt
 
 #if __GLASGOW_HASKELL__ < 503
-import IOExts
-import Bits
-import Int
-import Word
+import DATA_IOREF
+import DATA_BITS
+import DATA_INT
+import DATA_WORD
 import Char
 import Monad
 import Exception
@@ -75,6 +78,7 @@ import PrelIOBase             ( IOError(..), IOErrorType(..)
                                )
 import PrelReal                        ( Ratio(..) )
 import PrelIOBase              ( IO(..) )
+import IOExts                  ( openFileEx, IOModeEx(..) )
 #else
 import Data.Array.IO
 import Data.Array
@@ -85,7 +89,7 @@ import Data.IORef
 import Data.Char               ( ord, chr )
 import Data.Array.Base         ( unsafeRead, unsafeWrite )
 import Control.Monad           ( when )
-import Control.Exception       ( throw, throwDyn )
+import Control.Exception       ( throwDyn )
 import System.IO as IO
 import System.IO.Unsafe                ( unsafeInterleaveIO )
 import System.IO.Error         ( mkIOError, eofErrorType )
@@ -93,7 +97,17 @@ import GHC.Real                      ( Ratio(..) )
 import GHC.Exts
 import GHC.IOBase              ( IO(..) )
 import GHC.Word                        ( Word8(..) )
+#if __GLASGOW_HASKELL__ < 601
+-- openFileEx is available from the lang package, but we want to 
+-- be independent of hslibs libraries.
 import GHC.Handle              ( openFileEx, IOModeEx(..) )
+#else
+import System.IO               ( openBinaryFile )
+#endif
+#endif
+
+#if __GLASGOW_HASKELL__ < 601
+openBinaryFile f mode = openFileEx f (BinaryMode mode)
 #endif
 
 #if __GLASGOW_HASKELL__ < 503
@@ -223,7 +237,7 @@ isEOFBin (BinIO _ ix_r h) = hIsEOF h
 writeBinMem :: BinHandle -> FilePath -> IO ()
 writeBinMem (BinIO _ _ _) _ = error "Data.Binary.writeBinMem: not a memory handle"
 writeBinMem (BinMem _ ix_r sz_r arr_r) fn = do
-  h <- openFileEx fn (BinaryMode WriteMode)
+  h <- openBinaryFile fn WriteMode
   arr <- readIORef arr_r
   ix  <- readFastMutInt ix_r
   hPutArray h arr ix
@@ -237,7 +251,7 @@ writeBinMem (BinMem _ ix_r sz_r arr_r) fn = do
 
 readBinMem :: FilePath -> IO BinHandle
 readBinMem filename = do
-  h <- openFileEx filename (BinaryMode ReadMode)
+  h <- openBinaryFile filename ReadMode
   filesize' <- hFileSize h
   let filesize = fromIntegral filesize'
   arr <- newArray_ (0,filesize-1)
@@ -263,7 +277,9 @@ expandBin (BinMem _ ix_r sz_r arr_r) off = do
             | i <- [ 0 .. sz-1 ] ]
    writeFastMutInt sz_r sz'
    writeIORef arr_r arr'
-   hPutStrLn stderr ("expanding to size: " ++ show sz')
+#ifdef DEBUG
+   hPutStrLn stderr ("Binary: expanding to size: " ++ show sz')
+#endif
    return ()
 expandBin (BinIO _ _ _) _ = return ()
        -- no need to expand a file, we'll assume they expand by themselves.
@@ -294,7 +310,11 @@ getWord8 (BinMem _ ix_r sz_r arr_r) = do
     ix <- readFastMutInt ix_r
     sz <- readFastMutInt sz_r
     when (ix >= sz)  $
+#if __GLASGOW_HASKELL__ <= 408
        throw (mkIOError eofErrorType "Data.Binary.getWord8" Nothing Nothing)
+#else
+       ioError (mkIOError eofErrorType "Data.Binary.getWord8" Nothing Nothing)
+#endif
     arr <- readIORef arr_r
     w <- unsafeRead arr ix
     writeFastMutInt ix_r (ix+1)
@@ -688,4 +708,4 @@ instance Binary FastString where
 
   get bh = do 
        j <- get bh
-       case getUserData bh of (_, _, _, arr) -> return (arr ! j)
+       case getUserData bh of (_, _, _, arr) -> return $! (arr ! j)