Remove unnecessary fromIntegral calls

[ghc-base.git] / GHC / IO / Handle / FD.hs

diff --git a/GHC/IO/Handle/FD.hs b/GHC/IO/Handle/FD.hs
index ec215ec..0ef0cea 100644 (file)
--- a/GHC/IO/Handle/FD.hs
+++ b/GHC/IO/Handle/FD.hs
@@ -21,16 +21,14 @@ module GHC.IO.Handle.FD (
  ) where
 
 import GHC.Base
-import GHC.Num
-import GHC.Real
 import GHC.Show
 import Data.Maybe
-import Control.Monad
+-- import Control.Monad
 import Foreign.C.Types
 import GHC.MVar
 import GHC.IO
 import GHC.IO.Encoding
-import GHC.IO.Exception
+-- import GHC.IO.Exception
 import GHC.IO.Device as IODevice
 import GHC.IO.Exception
 import GHC.IO.IOMode
@@ -51,6 +49,7 @@ import qualified System.Posix.Internals as Posix
 
 -- | A handle managing input from the Haskell program's standard input channel.
 stdin :: Handle
+{-# NOINLINE stdin #-}
 stdin = unsafePerformIO $ do
    -- ToDo: acquire lock
    setBinaryMode FD.stdin
@@ -60,6 +59,7 @@ stdin = unsafePerformIO $ do
 
 -- | A handle managing output to the Haskell program's standard output channel.
 stdout :: Handle
+{-# NOINLINE stdout #-}
 stdout = unsafePerformIO $ do
    -- ToDo: acquire lock
    setBinaryMode FD.stdout
@@ -69,6 +69,7 @@ stdout = unsafePerformIO $ do
 
 -- | A handle managing output to the Haskell program's standard error channel.
 stderr :: Handle
+{-# NOINLINE stderr #-}
 stderr = unsafePerformIO $ do
     -- ToDo: acquire lock
    setBinaryMode FD.stderr
@@ -81,13 +82,17 @@ stdHandleFinalizer :: FilePath -> MVar Handle__ -> IO ()
 stdHandleFinalizer fp m = do
   h_ <- takeMVar m
   flushWriteBuffer h_
+  case haType h_ of 
+      ClosedHandle -> return ()
+      _other       -> closeTextCodecs h_
   putMVar m (ioe_finalizedHandle fp)
 
 -- We have to put the FDs into binary mode on Windows to avoid the newline
 -- translation that the CRT IO library does.
 setBinaryMode :: FD -> IO ()
 #ifdef mingw32_HOST_OS
-setBinaryMode fd = do setmode (fdFD fd) True; return ()
+setBinaryMode fd = do _ <- setmode (fdFD fd) True
+                      return ()
 #else
 setBinaryMode _ = return ()
 #endif
@@ -234,7 +239,7 @@ fdToHandle' fdint mb_type is_socket filepath iomode binary = do
                         Just RegularFile -> Nothing
                           -- no stat required for streams etc.:
                         Just other       -> Just (other,0,0)
-  (fd,fd_type) <- FD.mkFD (fromIntegral fdint) iomode mb_stat
+  (fd,fd_type) <- FD.mkFD fdint iomode mb_stat
                        is_socket
                        is_socket
   mkHandleFromFD fd fd_type filepath iomode is_socket
@@ -249,8 +254,8 @@ fdToHandle' fdint mb_type is_socket filepath iomode binary = do
 -- translation instead.
 fdToHandle :: Posix.FD -> IO Handle
 fdToHandle fdint = do
-   iomode <- Posix.fdGetMode (fromIntegral fdint)
-   (fd,fd_type) <- FD.mkFD (fromIntegral fdint) iomode Nothing
+   iomode <- Posix.fdGetMode fdint
+   (fd,fd_type) <- FD.mkFD fdint iomode Nothing
             False{-is_socket-} 
               -- NB. the is_socket flag is False, meaning that:
               --  on Windows we're guessing this is not a socket (XXX)