X-Git-Url: http://git.megacz.com/?p=ghc-hetmet.git;a=blobdiff_plain;f=compiler%2Fmain%2FGHC.hs;h=0ecc09b9d78aac4af555c333f515932868472447;hp=44ec3ff26bc4c4a4c6b2f3bd3aa2b56f97a904ac;hb=927df6486bc0dcb598b82702ca40c8fad0d9b25f;hpb=4da7b4ae7d6344d5ab6a1eafe39d04d850183a4a

diff --git a/compiler/main/GHC.hs b/compiler/main/GHC.hs
index 44ec3ff..0ecc09b 100644
--- a/compiler/main/GHC.hs
+++ b/compiler/main/GHC.hs
@@ -933,6 +933,10 @@ getPackageModuleInfo :: HscEnv -> Module -> IO (Maybe ModuleInfo)
 #ifdef GHCI
 getPackageModuleInfo hsc_env mdl = do
   mb_avails <- hscGetModuleExports hsc_env mdl
+     -- This is the only use of hscGetModuleExports.  Perhaps we could use
+     -- hscRnImportDecls instead, but that does a lot more than we need
+     -- (building instance environment, checking family instance consistency
+     -- etc.).
   case mb_avails of
     Nothing -> return Nothing
     Just avails -> do