Remove the lock around NameCache for readBinIface.

[ghc-hetmet.git] / compiler / iface / BinIface.hs

diff --git a/compiler/iface/BinIface.hs b/compiler/iface/BinIface.hs
index 60647a6..2661326 100644 (file)
--- a/compiler/iface/BinIface.hs
+++ b/compiler/iface/BinIface.hs
@@ -22,9 +22,7 @@ import Annotations
 import IfaceSyn
 import Module
 import Name
-import OccName
 import VarEnv
-import InstEnv
 import Class
 import DynFlags
 import UniqFM
@@ -59,15 +57,13 @@ data TraceBinIFaceReading = TraceBinIFaceReading | QuietBinIFaceReading
 readBinIface :: CheckHiWay -> TraceBinIFaceReading -> FilePath
              -> TcRnIf a b ModIface
 readBinIface checkHiWay traceBinIFaceReading hi_path = do
-  nc <- getNameCache
-  (new_nc, iface) <- liftIO $
-    readBinIface_ checkHiWay traceBinIFaceReading hi_path nc
-  setNameCache new_nc
-  return iface
+  update_nc <- mkNameCacheUpdater
+  liftIO $ readBinIface_ checkHiWay traceBinIFaceReading hi_path update_nc
 
-readBinIface_ :: CheckHiWay -> TraceBinIFaceReading -> FilePath -> NameCache
-              -> IO (NameCache, ModIface)
-readBinIface_ checkHiWay traceBinIFaceReading hi_path nc = do
+readBinIface_ :: CheckHiWay -> TraceBinIFaceReading -> FilePath
+              -> NameCacheUpdater (Array Int Name)
+              -> IO ModIface
+readBinIface_ checkHiWay traceBinIFaceReading hi_path update_nc = do
   let printer :: SDoc -> IO ()
       printer = case traceBinIFaceReading of
                 TraceBinIFaceReading -> \sd -> printSDoc sd defaultDumpStyle
@@ -129,12 +125,12 @@ readBinIface_ checkHiWay traceBinIFaceReading hi_path nc = do
   symtab_p <- Binary.get bh     -- Get the symtab ptr
   data_p <- tellBin bh          -- Remember where we are now
   seekBin bh symtab_p
-  (nc', symtab) <- getSymbolTable bh nc
+  symtab <- getSymbolTable bh update_nc
   seekBin bh data_p             -- Back to where we were before
   let ud = getUserData bh
   bh <- return $! setUserData bh ud{ud_symtab = symtab}
   iface <- get bh
-  return (nc', iface)
+  return iface
 
 
 writeBinIface :: DynFlags -> FilePath -> ModIface -> IO ()
@@ -149,7 +145,7 @@ writeBinIface dflags hi_path mod_iface = do
         -- The version and way descriptor go next
   put_ bh (show opt_HiVersion)
   way_descr <- getWayDescr
-  put  bh way_descr
+  put_  bh way_descr
 
         -- Remember where the symbol table pointer will go
   symtab_p_p <- tellBin bh
@@ -208,7 +204,7 @@ initBinMemSize :: Int
 initBinMemSize = 1024 * 1024
 
 -- The *host* architecture version:
-#include "MachDeps.h"
+#include "../includes/MachDeps.h"
 
 binaryInterfaceMagic :: Word32
 #if   WORD_SIZE_IN_BITS == 32
@@ -226,16 +222,17 @@ putSymbolTable bh next_off symtab = do
   let names = elems (array (0,next_off-1) (eltsUFM symtab))
   mapM_ (\n -> serialiseName bh n symtab) names
 
-getSymbolTable :: BinHandle -> NameCache -> IO (NameCache, Array Int Name)
-getSymbolTable bh namecache = do
+getSymbolTable :: BinHandle -> NameCacheUpdater (Array Int Name)
+               -> IO (Array Int Name)
+getSymbolTable bh update_namecache = do
   sz <- get bh
   od_names <- sequence (replicate sz (get bh))
-  let 
+  update_namecache $ \namecache ->
+    let
         arr = listArray (0,sz-1) names
         (namecache', names) =    
                 mapAccumR (fromOnDiskName arr) namecache od_names
-  --
-  return (namecache', arr)
+    in (namecache', arr)
 
 type OnDiskName = (PackageId, ModuleName, OccName)
 
@@ -681,7 +678,7 @@ instance (Binary name) => Binary (IPName name) where
 
 instance Binary DmdType where
        -- Ignore DmdEnv when spitting out the DmdType
-  put bh (DmdType _ ds dr) = do p <- put bh ds; put bh dr; return (castBin p)
+  put bh (DmdType _ ds dr) = do p <- put bh ds; put_ bh dr; return (castBin p)
   get bh = do ds <- get bh; dr <- get bh; return (DmdType emptyVarEnv ds dr)
 
 instance Binary Demand where