X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=compiler%2Fiface%2FIfaceEnv.lhs;h=cea950873f89f0248daa80147bd4a3801020ed58;hb=17434e5beb213f1e8971d1ce8ffbf40a0848bb3a;hp=3c1db558649a530313ed73138070be0b7161da77;hpb=36f5406a714f0f1225377a7d601358ee7146fae8;p=ghc-hetmet.git

diff --git a/compiler/iface/IfaceEnv.lhs b/compiler/iface/IfaceEnv.lhs
index 3c1db55..cea9508 100644
--- a/compiler/iface/IfaceEnv.lhs
+++ b/compiler/iface/IfaceEnv.lhs
@@ -6,7 +6,7 @@ module IfaceEnv (
 	lookupIfaceTop, lookupIfaceExt,
 	lookupOrig, lookupIfaceTc,
 	newIfaceName, newIfaceNames,
-	extendIfaceIdEnv, extendIfaceTyVarEnv, refineIfaceIdEnv,
+	extendIfaceIdEnv, extendIfaceTyVarEnv, 
 	tcIfaceLclId,     tcIfaceTyVar, 
 
 	lookupAvail, ifaceExportNames,
@@ -24,7 +24,6 @@ import HscTypes		( NameCache(..), HscEnv(..), GenAvailInfo(..),
 			  IfaceExport, OrigNameCache )
 import Type		( mkOpenTvSubst, substTy )
 import TyCon		( TyCon, tyConName )
-import Unify		( TypeRefinement )
 import DataCon		( dataConWorkId, dataConName )
 import Var		( TyVar, Id, varName, setIdType, idType )
 import Name		( Name, nameUnique, nameModule, 
@@ -33,16 +32,17 @@ import Name		( Name, nameUnique, nameModule,
 		  	  isWiredInName, mkIPName,
 			  mkExternalName, mkInternalName )
 import NameSet		( NameSet, emptyNameSet, addListToNameSet )
-import OccName		( OccName, isTupleOcc_maybe, tcName, dataName, mapOccEnv,
+import OccName		( OccName, isTupleOcc_maybe, tcName, dataName, mapOccEnv, occNameFS,
 			  lookupOccEnv, unitOccEnv, extendOccEnv, extendOccEnvList )
-import PrelNames	( gHC_PRIM, pREL_TUP )
-import Module		( Module, emptyModuleEnv, 
-			  lookupModuleEnv, extendModuleEnv_C )
+import PrelNames	( gHC_PRIM, dATA_TUP )
+import Module		( Module, emptyModuleEnv, ModuleName, modulePackageId,
+			  lookupModuleEnv, extendModuleEnv_C, mkModule )
+import UniqFM           ( lookupUFM, addListToUFM )
+import FastString       ( FastString )
 import UniqSupply	( UniqSupply, splitUniqSupply, uniqFromSupply, uniqsFromSupply )
 import FiniteMap	( emptyFM, lookupFM, addToFM )
 import BasicTypes	( IPName(..), mapIPName )
 import SrcLoc		( SrcLoc, noSrcLoc )
-import Maybes		( orElse )
 
 import Outputable
 \end{code}
@@ -229,7 +229,7 @@ newIPName occ_name_ip
 \begin{code}
 lookupOrigNameCache :: OrigNameCache -> Module -> OccName -> Maybe Name
 lookupOrigNameCache nc mod occ
-  | mod == pREL_TUP || mod == gHC_PRIM,		-- Boxed tuples from one, 
+  | mod == dATA_TUP || mod == gHC_PRIM,		-- Boxed tuples from one, 
     Just tup_info <- isTupleOcc_maybe occ	-- unboxed from the other
   = 	-- Special case for tuples; there are too many
 	-- of them to pre-populate the original-name cache
@@ -285,34 +285,26 @@ initOrigNames names = foldl extendOrigNameCache emptyModuleEnv names
 %************************************************************************
 
 \begin{code}
-tcIfaceLclId :: OccName -> IfL Id
+tcIfaceLclId :: FastString -> IfL Id
 tcIfaceLclId occ
   = do	{ lcl <- getLclEnv
-	; case (lookupOccEnv (if_id_env lcl) occ) of
+	; case (lookupUFM (if_id_env lcl) occ) of
             Just ty_var -> return ty_var
             Nothing     -> failIfM (text "Iface id out of scope: " <+> ppr occ)
         }
 
-refineIfaceIdEnv :: TypeRefinement -> IfL a -> IfL a
-refineIfaceIdEnv (tv_subst, _) thing_inside
-  = do	{ env <- getLclEnv
-	; let { id_env' = mapOccEnv refine_id (if_id_env env)
-	      ;	refine_id id = setIdType id (substTy subst (idType id))
-	      ;	subst = mkOpenTvSubst tv_subst }
-	; setLclEnv (env { if_id_env = id_env' }) thing_inside }
-	
 extendIfaceIdEnv :: [Id] -> IfL a -> IfL a
 extendIfaceIdEnv ids thing_inside
   = do	{ env <- getLclEnv
-	; let { id_env' = extendOccEnvList (if_id_env env) pairs
-	      ;	pairs   = [(getOccName id, id) | id <- ids] }
+	; let { id_env' = addListToUFM (if_id_env env) pairs
+	      ;	pairs   = [(occNameFS (getOccName id), id) | id <- ids] }
 	; setLclEnv (env { if_id_env = id_env' }) thing_inside }
 
 
-tcIfaceTyVar :: OccName -> IfL TyVar
+tcIfaceTyVar :: FastString -> IfL TyVar
 tcIfaceTyVar occ
   = do	{ lcl <- getLclEnv
-	; case (lookupOccEnv (if_tv_env lcl) occ) of
+	; case (lookupUFM (if_tv_env lcl) occ) of
             Just ty_var -> return ty_var
             Nothing     -> failIfM (text "Iface type variable out of scope: " <+> ppr occ)
         }
@@ -320,8 +312,8 @@ tcIfaceTyVar occ
 extendIfaceTyVarEnv :: [TyVar] -> IfL a -> IfL a
 extendIfaceTyVarEnv tyvars thing_inside
   = do	{ env <- getLclEnv
-	; let { tv_env' = extendOccEnvList (if_tv_env env) pairs
-	      ;	pairs   = [(getOccName tv, tv) | tv <- tyvars] }
+	; let { tv_env' = addListToUFM (if_tv_env env) pairs
+	      ;	pairs   = [(occNameFS (getOccName tv), tv) | tv <- tyvars] }
 	; setLclEnv (env { if_tv_env = tv_env' }) thing_inside }
 \end{code}
 
@@ -339,7 +331,7 @@ lookupIfaceTc other_tc	    = return (ifaceTyConName other_tc)
 
 lookupIfaceExt :: IfaceExtName -> IfL Name
 lookupIfaceExt (ExtPkg  mod occ)   = lookupOrig mod occ
-lookupIfaceExt (HomePkg mod occ _) = lookupOrig mod occ
+lookupIfaceExt (HomePkg mod occ _) = lookupHomePackage mod occ
 lookupIfaceExt (LocalTop occ)	   = lookupIfaceTop occ
 lookupIfaceExt (LocalTopSub occ _) = lookupIfaceTop occ
 
@@ -348,10 +340,16 @@ lookupIfaceTop :: OccName -> IfL Name
 lookupIfaceTop occ
   = do	{ env <- getLclEnv; lookupOrig (if_mod env) occ }
 
+lookupHomePackage :: ModuleName -> OccName -> IfL Name
+lookupHomePackage mod_name occ
+  = do	{ env <- getLclEnv; 
+        ; let this_pkg = modulePackageId (if_mod env)
+        ; lookupOrig (mkModule this_pkg mod_name) occ }
+
 newIfaceName :: OccName -> IfL Name
 newIfaceName occ
   = do	{ uniq <- newUnique
-	; return (mkInternalName uniq occ noSrcLoc) }
+	; return $! mkInternalName uniq occ noSrcLoc }
 
 newIfaceNames :: [OccName] -> IfL [Name]
 newIfaceNames occs