Remove unused imports

[ghc-hetmet.git] / compiler / iface / IfaceEnv.lhs

diff --git a/compiler/iface/IfaceEnv.lhs b/compiler/iface/IfaceEnv.lhs
index e09ff41..05c6289 100644 (file)
--- a/compiler/iface/IfaceEnv.lhs
+++ b/compiler/iface/IfaceEnv.lhs
@@ -7,7 +7,7 @@ module IfaceEnv (
        lookupOrig, lookupOrigNameCache, extendNameCache,
        newIfaceName, newIfaceNames,
        extendIfaceIdEnv, extendIfaceTyVarEnv, 
-       tcIfaceLclId,     tcIfaceTyVar, 
+       tcIfaceLclId, tcIfaceTyVar, lookupIfaceTyVar,
        tcIfaceTick,
 
        ifaceExportNames,
@@ -26,7 +26,6 @@ import TyCon
 import DataCon
 import Var
 import Name
-import OccName
 import PrelNames
 import Module
 import LazyUniqFM
@@ -282,6 +281,11 @@ tcIfaceTyVar occ
             Nothing     -> failIfM (text "Iface type variable out of scope: " <+> ppr occ)
         }
 
+lookupIfaceTyVar :: FastString -> IfL (Maybe TyVar)
+lookupIfaceTyVar occ
+  = do { lcl <- getLclEnv
+       ; return (lookupUFM (if_tv_env lcl) occ) }
+
 extendIfaceTyVarEnv :: [TyVar] -> IfL a -> IfL a
 extendIfaceTyVarEnv tyvars thing_inside
   = do { env <- getLclEnv