Major patch to fix reporting of unused imports

[ghc-hetmet.git] / compiler / typecheck / TcRnDriver.lhs

diff --git a/compiler/typecheck/TcRnDriver.lhs b/compiler/typecheck/TcRnDriver.lhs
index cc7d63d..30574ae 100644 (file)
--- a/compiler/typecheck/TcRnDriver.lhs
+++ b/compiler/typecheck/TcRnDriver.lhs
@@ -34,7 +34,6 @@ import DynFlags
 import StaticFlags
 import HsSyn
 import RdrHsSyn
-
 import PrelNames
 import RdrName
 import TcHsSyn
@@ -237,7 +236,7 @@ tcRnImports hsc_env this_mod import_decls
            gbl { 
               tcg_rdr_env      = plusOccEnv (tcg_rdr_env gbl) rdr_env,
              tcg_imports      = tcg_imports gbl `plusImportAvails` imports,
-              tcg_rn_imports   = fmap (const rn_imports) (tcg_rn_imports gbl),
+              tcg_rn_imports   = rn_imports,
              tcg_inst_env     = extendInstEnvList (tcg_inst_env gbl) home_insts,
              tcg_fam_inst_env = extendFamInstEnvList (tcg_fam_inst_env gbl) 
                                                       home_fam_insts,
@@ -944,6 +943,12 @@ check_main dflags tcg_env
     pp_main_fn | main_fn == main_RDR_Unqual = ptext (sLit "function") <+> quotes (ppr main_fn)
               | otherwise                  = ptext (sLit "main function") <+> quotes (ppr main_fn)
               
+-- | Get the unqualified name of the function to use as the \"main\" for the main module.
+-- Either returns the default name or the one configured on the command line with -main-is
+getMainFun :: DynFlags -> RdrName
+getMainFun dflags = case (mainFunIs dflags) of
+    Just fn -> mkRdrUnqual (mkVarOccFS (mkFastString fn))
+    Nothing -> main_RDR_Unqual
 \end{code}
 
 Note [Root-main Id]
@@ -1266,7 +1271,7 @@ tcRnType hsc_env ictxt rdr_type
     failIfErrsM ;
 
        -- Now kind-check the type
-    (ty', kind) <- kcHsType rn_type ;
+    (ty', kind) <- kcLHsType rn_type ;
     return kind
     }
   where