X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=compiler%2Ftypecheck%2FTcRnMonad.lhs;h=65128baf4e7702aa6f3c966277a2ca8fd0ea9454;hb=c80364f8e4681b34e974f5df36ecdacec7cd9cd8;hp=3333bb7c2a82006056f662578ff841f803e1d200;hpb=762c24327f4a2f874fb8a4b2d6717d36aa6c5e02;p=ghc-hetmet.git

diff --git a/compiler/typecheck/TcRnMonad.lhs b/compiler/typecheck/TcRnMonad.lhs
index 3333bb7..65128ba 100644
--- a/compiler/typecheck/TcRnMonad.lhs
+++ b/compiler/typecheck/TcRnMonad.lhs
@@ -168,9 +168,8 @@ initTcPrintErrors	-- Used from the interactive loop only
        -> Module 
        -> TcM r
        -> IO (Messages, Maybe r)
-initTcPrintErrors env mod todo = do
-  (msgs, res) <- initTc env HsSrcFile False mod todo
-  return (msgs, res)
+
+initTcPrintErrors env mod todo = initTc env HsSrcFile False mod todo
 \end{code}
 
 %************************************************************************
@@ -253,7 +252,7 @@ doptM flag = do { dflags <- getDOpts; return (dopt flag dflags) }
 
 setOptM :: ExtensionFlag -> TcRnIf gbl lcl a -> TcRnIf gbl lcl a
 setOptM flag = updEnv (\ env@(Env { env_top = top }) ->
-			 env { env_top = top { hsc_dflags = xopt_set_flattened (hsc_dflags top) flag}} )
+			 env { env_top = top { hsc_dflags = xopt_set (hsc_dflags top) flag}} )
 
 unsetOptM :: DynFlag -> TcRnIf gbl lcl a -> TcRnIf gbl lcl a
 unsetOptM flag = updEnv (\ env@(Env { env_top = top }) ->
@@ -330,11 +329,11 @@ newMetaUnique
 newUnique :: TcRnIf gbl lcl Unique
 newUnique
  = do { env <- getEnv ;
-	let { u_var = env_us env } ;
-	us <- readMutVar u_var ;
-        case splitUniqSupply us of { (us1,_) -> do {
-	writeMutVar u_var us1 ;
-	return $! uniqFromSupply us }}}
+        let { u_var = env_us env } ;
+        us <- readMutVar u_var ;
+        case takeUniqFromSupply us of { (uniq, us') -> do {
+        writeMutVar u_var us' ;
+        return $! uniq }}}
    -- NOTE 1: we strictly split the supply, to avoid the possibility of leaving
    -- a chain of unevaluated supplies behind.
    -- NOTE 2: we use the uniq in the supply from the MutVar directly, and
@@ -345,11 +344,11 @@ newUnique
 newUniqueSupply :: TcRnIf gbl lcl UniqSupply
 newUniqueSupply
  = do { env <- getEnv ;
-	let { u_var = env_us env } ;
-	us <- readMutVar u_var ;
+        let { u_var = env_us env } ;
+        us <- readMutVar u_var ;
         case splitUniqSupply us of { (us1,us2) -> do {
-	writeMutVar u_var us1 ;
-	return us2 }}}
+        writeMutVar u_var us1 ;
+        return us2 }}}
 
 newLocalName :: Name -> TcRnIf gbl lcl Name
 newLocalName name	-- Make a clone