X-Git-Url: http://git.megacz.com/?p=ghc-hetmet.git;a=blobdiff_plain;f=compiler%2Ftypecheck%2FTcRnMonad.lhs;h=f0303c11412b58e1954f56f5a54699719728a778;hp=06e3d811f4d4dbfafe56d19e08639261a4702429;hb=bb7d80b3b8d1396d481d3b24302bee24a3d92f71;hpb=d4b95ea994e850f2c85e418b5625874fd25b0ebf

diff --git a/compiler/typecheck/TcRnMonad.lhs b/compiler/typecheck/TcRnMonad.lhs
index 06e3d81..f0303c1 100644
--- a/compiler/typecheck/TcRnMonad.lhs
+++ b/compiler/typecheck/TcRnMonad.lhs
@@ -14,14 +14,6 @@ module TcRnMonad(
 import TcRnTypes	-- Re-export all
 import IOEnv		-- Re-export all
 
-#if defined(GHCI)
-import TypeRep
-import IdInfo
-import TysWiredIn
-import PrelNames
-import {-#SOURCE#-} TcEnv
-#endif
-
 import HsSyn hiding (LIE)
 import HscTypes
 import Module
@@ -71,13 +63,14 @@ ioToTcRn = ioToIOEnv
 
 initTc :: HscEnv
        -> HscSource
+       -> Bool		-- True <=> retain renamed syntax trees
        -> Module 
        -> TcM r
        -> IO (Messages, Maybe r)
 		-- Nothing => error thrown by the thing inside
 		-- (error messages should have been printed already)
 
-initTc hsc_env hsc_src mod do_this
+initTc hsc_env hsc_src keep_rn_syntax mod do_this
  = do { errs_var     <- newIORef (emptyBag, emptyBag) ;
       	tvs_var      <- newIORef emptyVarSet ;
 	type_env_var <- newIORef emptyNameEnv ;
@@ -86,6 +79,10 @@ initTc hsc_env hsc_src mod do_this
 	th_var	     <- newIORef False ;
 	dfun_n_var   <- newIORef 1 ;
       	let {
+	     maybe_rn_syntax empty_val
+		| keep_rn_syntax = Just empty_val
+		| otherwise	 = Nothing ;
+			
 	     gbl_env = TcGblEnv {
 		tcg_mod      = mod,
 		tcg_src	     = hsc_src,
@@ -101,9 +98,11 @@ initTc hsc_env hsc_src mod do_this
 		tcg_exports  = [],
 		tcg_imports  = emptyImportAvails,
 		tcg_dus      = emptyDUs,
-                tcg_rn_imports = Nothing,
-                tcg_rn_exports = Nothing,
-		tcg_rn_decls = Nothing,
+
+                tcg_rn_imports = maybe_rn_syntax [],
+                tcg_rn_exports = maybe_rn_syntax [],
+		tcg_rn_decls   = maybe_rn_syntax emptyRnGroup,
+
 		tcg_binds    = emptyLHsBinds,
 		tcg_deprecs  = NoDeprecs,
 		tcg_insts    = [],
@@ -152,7 +151,7 @@ initTcPrintErrors	-- Used from the interactive loop only
        -> TcM r
        -> IO (Maybe r)
 initTcPrintErrors env mod todo = do
-  (msgs, res) <- initTc env HsSrcFile mod todo
+  (msgs, res) <- initTc env HsSrcFile False mod todo
   printErrorsAndWarnings (hsc_dflags env) msgs
   return res
 \end{code}
@@ -161,7 +160,6 @@ initTcPrintErrors env mod todo = do
 addBreakpointBindings :: TcM a -> TcM a
 addBreakpointBindings thing_inside
    = thing_inside
-
 \end{code}
 
 %************************************************************************
@@ -727,9 +725,12 @@ checkTc False err = failWithTc err
 
 \begin{code}
 addWarnTc :: Message -> TcM ()
-addWarnTc msg
+addWarnTc msg = do { env0 <- tcInitTidyEnv 
+		   ; addWarnTcM (env0, msg) }
+
+addWarnTcM :: (TidyEnv, Message) -> TcM ()
+addWarnTcM (env0, msg)
  = do { ctxt <- getErrCtxt ;
-	env0 <- tcInitTidyEnv ;
 	ctxt_msgs <- do_ctxt env0 ctxt ;
 	addWarn (vcat (msg : ctxt_to_use ctxt_msgs)) }