Add {-# OPTIONS_GHC -w #-} and some blurb to all compiler modules

[ghc-hetmet.git] / compiler / ghci / GhciMonad.hs

diff --git a/compiler/ghci/GhciMonad.hs b/compiler/ghci/GhciMonad.hs
index f68da83..c92c4e0 100644 (file)
--- a/compiler/ghci/GhciMonad.hs
+++ b/compiler/ghci/GhciMonad.hs
@@ -6,6 +6,13 @@
 --
 -----------------------------------------------------------------------------
 
+{-# OPTIONS_GHC -w #-}
+-- The above warning supression flag is a temporary kludge.
+-- While working on this module you are encouraged to remove it and fix
+-- any warnings in the module. See
+--     http://hackage.haskell.org/trac/ghc/wiki/WorkingConventions#Warnings
+-- for details
+
 module GhciMonad where
 
 #include "HsVersions.h"
@@ -111,6 +118,9 @@ instance Monad GHCi where
   (GHCi m) >>= k  =  GHCi $ \s -> m s >>= \a -> unGHCi (k a) s
   return a  = GHCi $ \s -> return a
 
+instance Functor GHCi where
+    fmap f m = m >>= return . f
+
 ghciHandleDyn :: Typeable t => (t -> GHCi a) -> GHCi a -> GHCi a
 ghciHandleDyn h (GHCi m) = GHCi $ \s -> 
    Exception.catchDyn (m s) (\e -> unGHCi (h e) s)