Keep track of family instance modules

[ghc-hetmet.git] / compiler / main / Main.hs

diff --git a/compiler/main/Main.hs b/compiler/main/Main.hs
index 0dd1cbe..f7c5be7 100644 (file)
--- a/compiler/main/Main.hs
+++ b/compiler/main/Main.hs
@@ -19,6 +19,7 @@ import CmdLineParser
 
 -- Implementations of the various modes (--show-iface, mkdependHS. etc.)
 import LoadIface       ( showIface )
+import HscMain          ( newHscEnv )
 import DriverPipeline  ( oneShot, compileFile )
 import DriverMkDepend  ( doMkDependHS )
 #ifdef GHCI
@@ -40,13 +41,14 @@ import Util
 import Panic
 
 -- Standard Haskell libraries
-import EXCEPTION       ( throwDyn )
-import IO
-import Directory       ( doesDirectoryExist )
-import System          ( getArgs, exitWith, ExitCode(..) )
-import Monad
-import List
-import Maybe
+import Control.Exception ( throwDyn )
+import System.IO
+import System.Directory        ( doesDirectoryExist )
+import System.Environment
+import System.Exit
+import Control.Monad
+import Data.List
+import Data.Maybe
 
 -----------------------------------------------------------------------------
 -- ToDo:
@@ -147,7 +149,7 @@ main =
        PrintLibdir     -> putStrLn (topDir dflags)
        ShowVersion     -> showVersion
         ShowNumVersion  -> putStrLn cProjectVersion
-        ShowInterface f -> showIface f
+        ShowInterface f -> doShowIface dflags f
        DoMake          -> doMake session srcs
        DoMkDependHS    -> doMkDependHS session (map fst srcs)
        StopBefore p    -> oneShot dflags p srcs
@@ -395,6 +397,15 @@ doMake sess srcs  = do
     when (failed ok_flag) (exitWith (ExitFailure 1))
     return ()
 
+
+-- ---------------------------------------------------------------------------
+-- --show-iface mode
+
+doShowIface :: DynFlags -> FilePath -> IO ()
+doShowIface dflags file = do
+  hsc_env <- newHscEnv dflags
+  showIface hsc_env file
+
 -- ---------------------------------------------------------------------------
 -- Various banners and verbosity output.