#include "HsVersions.h"
-#if __GLASGOW_HASKELL__ < 411
-import PrelAddr ( Addr(..) )
+#if __GLASGOW_HASKELL__ < 502
import Panic ( panic )
#else
-import Addr ( Addr(..) )
#if __GLASGOW_HASKELL__ < 503
import Ptr ( Ptr(..) )
#else
import PrimPacked
import FastString
-import GlaExts
+import GLAEXTS
+
import Foreign
-import IO ( openFile, isEOFError )
-import Addr
-import Exception ( bracket )
-import CString ( unpackCStringBA )
+#if __GLASGOW_HASKELL__ >= 502
+import CForeign
+#endif
+
+import IO ( openFile, isEOFError )
+import EXCEPTION ( bracket )
#if __GLASGOW_HASKELL__ < 503
import PrelIOBase
\begin{code}
instance Show StringBuffer where
- showsPrec _ s = showString ""
+ showsPrec _ s = showString "<stringbuffer>"
\end{code}
\begin{code}
-- the sentinel. Assume it has a final newline for now, and overwrite
-- that with the sentinel. slurpFileExpandTabs (below) leaves room
-- for the sentinel.
- let (A# a#) = a;
+ let (Ptr a#) = a;
(I# read#) = read;
end# = read# -# 1#
- -- add sentinel '\NUL'
- _casm_ `` ((char *)%0)[(int)%1]=(char)0; '' (A# a#) (I# end#)
- return (StringBuffer a# end# 0# 0#)
+ -- add sentinel '\NUL'
+ writeCharOffPtr a (I# end#) '\0'
-unsafeWriteBuffer :: StringBuffer -> Int# -> Char# -> StringBuffer
-unsafeWriteBuffer s@(StringBuffer a _ _ _) i# ch# =
- unsafePerformIO (
- _casm_ `` ((char *)%0)[(int)%1]=(char)%2; '' (A# a) (I# i#) (C# ch#) >>= \ () ->
- return s
- )
+ return (StringBuffer a# end# 0# 0#)
\end{code}
-----------------------------------------------------------------------------
stringToStringBuffer :: String -> IO StringBuffer
freeStringBuffer :: StringBuffer -> IO ()
-#if __GLASGOW_HASKELL__ >= 411
-stringToStringBuffer str =
- do let sz@(I# sz#) = length str
- (Ptr a#) <- mallocBytes (sz+1)
- fill_in str (A# a#)
- writeCharOffAddr (A# a#) sz '\0' -- sentinel
- return (StringBuffer a# sz# 0# 0#)
- where
- fill_in [] _ = return ()
- fill_in (c:cs) a = do
- writeCharOffAddr a 0 c
- fill_in cs (a `plusAddr` 1)
+#if __GLASGOW_HASKELL__ >= 502
+stringToStringBuffer str = do
+ let sz@(I# sz#) = length str
+ Ptr a# <- newCString str
+ return (StringBuffer a# sz# 0# 0#)
freeStringBuffer (StringBuffer a# _ _ _) = Foreign.free (Ptr a#)
#else
expanded tabs, and enlarge it if necessary.
\begin{code}
+#if __GLASGOW_HASKELL__ < 501
getErrType :: IO Int
getErrType = _ccall_ getErrType__
+#endif
-slurpFileExpandTabs :: FilePath -> IO (Addr,Int)
+slurpFileExpandTabs :: FilePath -> IO (Ptr (),Int)
slurpFileExpandTabs fname = do
bracket (openFile fname ReadMode) (hClose)
(\ handle ->
if sz_i == 0
-- empty file: just allocate a buffer containing '\0'
then do chunk <- allocMem 1
- writeCharOffAddr chunk 0 '\0'
+ writeCharOffPtr chunk 0 '\0'
return (chunk, 0)
else do let sz_i' = (sz_i * 12) `div` 10 -- add 20% for tabs
chunk <- allocMem sz_i'
trySlurp handle sz_i' chunk
)
-trySlurp :: Handle -> Int -> Addr -> IO (Addr, Int)
+trySlurp :: Handle -> Int -> Ptr () -> IO (Ptr (), Int)
trySlurp handle sz_i chunk =
#if __GLASGOW_HASKELL__ < 501
wantReadableHandle "hGetChar" handle $ \ handle_ ->
tAB_SIZE = 8#
- slurpFile :: Int# -> Int# -> Addr -> Int# -> Int# -> IO (Addr, Int)
+ slurpFile :: Int# -> Int# -> Ptr () -> Int# -> Int# -> IO (Ptr (), Int)
slurpFile c off chunk chunk_sz max_off = slurp c off
where
- slurp :: Int# -> Int# -> IO (Addr, Int)
+ slurp :: Int# -> Int# -> IO (Ptr (), Int)
slurp c off | off >=# max_off = do
let new_sz = chunk_sz *# 2#
chunk' <- reAllocMem chunk (I# new_sz)
'\xFFFF' -> return (chunk, I# off)
#endif
'\t' -> tabIt c off
- ch -> do writeCharOffAddr chunk (I# off) ch
+ ch -> do writeCharOffPtr chunk (I# off) ch
let c' | ch == '\n' = 0#
| otherwise = c +# 1#
slurp c' (off +# 1#)
- tabIt :: Int# -> Int# -> IO (Addr, Int)
+ tabIt :: Int# -> Int# -> IO (Ptr (), Int)
-- can't run out of buffer in here, because we reserved an
-- extra tAB_SIZE bytes at the end earlier.
tabIt c off = do
- writeCharOffAddr chunk (I# off) ' '
+ writeCharOffPtr chunk (I# off) ' '
let c' = c +# 1#
off' = off +# 1#
if c' `remInt#` tAB_SIZE ==# 0#
return (chunk', rc+1 {- room for sentinel -})
-reAllocMem :: Addr -> Int -> IO Addr
+reAllocMem :: Ptr () -> Int -> IO (Ptr ())
reAllocMem ptr sz = do
- chunk <- _ccall_ realloc ptr sz
- if chunk == nullAddr
+ chunk <- c_realloc ptr sz
+ if chunk == nullPtr
then fail "reAllocMem"
else return chunk
-allocMem :: Int -> IO Addr
+allocMem :: Int -> IO (Ptr ())
allocMem sz = do
- chunk <- _ccall_ malloc sz
- if chunk == nullAddr
+ chunk <- c_malloc sz
+ if chunk == nullPtr
#if __GLASGOW_HASKELL__ < 501
then constructErrorAndFail "allocMem"
#else
"out of memory" Nothing)
#endif
else return chunk
+
+#if __GLASGOW_HASKELL__ <= 408
+c_malloc sz = do A# a <- c_malloc' sz; return (Ptr a)
+foreign import ccall "malloc" unsafe
+ c_malloc' :: Int -> IO Addr
+
+c_realloc (Ptr a) sz = do A# a <- c_realloc' (A# a) sz; return (Ptr a)
+foreign import ccall "realloc" unsafe
+ c_realloc' :: Addr -> Int -> IO Addr
+#else
+foreign import ccall "malloc" unsafe
+ c_malloc :: Int -> IO (Ptr a)
+
+foreign import ccall "realloc" unsafe
+ c_realloc :: Ptr a -> Int -> IO (Ptr a)
+#endif
\end{code}
Lookup
-- conversion
lexemeToString :: StringBuffer -> String
-lexemeToString (StringBuffer fo _ start_pos# current#) =
+lexemeToString (StringBuffer fo len# start_pos# current#) =
if start_pos# ==# current# then
""
else
- unpackCStringBA (copySubStr (A# fo) (I# start_pos#) (I# (current# -# start_pos#)))
+ unpackCStringBA
+ (copySubStr fo (I# start_pos#) (I# (current# -# start_pos#)))
+ (I# len#)
lexemeToFastString :: StringBuffer -> FastString
lexemeToFastString (StringBuffer fo l# start_pos# current#) =
if start_pos# ==# current# then
mkFastString ""
else
- mkFastSubString (A# fo) (I# start_pos#) (I# (current# -# start_pos#))
+ mkFastSubString fo (I# start_pos#) (I# (current# -# start_pos#))
\end{code}
projects / ghc-hetmet.git / blobdiff