X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=compiler%2Ftypecheck%2FTcDefaults.lhs;h=66064c0dd5c9869e046d48facbfb0a8c11d1f728;hb=5244158455f546d07632e48c718a771a8f2145a3;hp=f3f35d4c9bed904effbd34b1bff26c0d30e25dc6;hpb=d4b95ea994e850f2c85e418b5625874fd25b0ebf;p=ghc-hetmet.git

diff --git a/compiler/typecheck/TcDefaults.lhs b/compiler/typecheck/TcDefaults.lhs
index f3f35d4..66064c0 100644
--- a/compiler/typecheck/TcDefaults.lhs
+++ b/compiler/typecheck/TcDefaults.lhs
@@ -5,9 +5,14 @@
 \section[TcDefaults]{Typechecking \tr{default} declarations}
 
 \begin{code}
-module TcDefaults ( tcDefaults ) where
+{-# OPTIONS -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/Commentary/CodingStyle#Warnings
+-- for details
 
-#include "HsVersions.h"
+module TcDefaults ( tcDefaults ) where
 
 import HsSyn
 import Name
@@ -22,6 +27,7 @@ import DynFlags
 import SrcLoc
 import Maybe
 import Outputable
+import FastString
 \end{code}
 
 \begin{code}
@@ -43,7 +49,7 @@ tcDefaults []
 	-- defaultDefaultTys
 
 tcDefaults [L locn (DefaultDecl [])]
-  = returnM (Just [])		-- Default declaration specifying no types
+  = return (Just [])		-- Default declaration specifying no types
 
 tcDefaults [L locn (DefaultDecl mono_tys)]
   = setSrcSpan locn 			$
@@ -54,7 +60,7 @@ tcDefaults [L locn (DefaultDecl mono_tys)]
 	; let deflt_clss | ovl_str   = [num_class, is_str_class]
 			 | otherwise = [num_class]
 
-	; tau_tys <- mappM (tc_default_ty deflt_clss) mono_tys
+	; tau_tys <- mapM (tc_default_ty deflt_clss) mono_tys
     
 	; return (Just tau_tys) }
 
@@ -79,19 +85,19 @@ check_instance ty cls
   = do	{ (_, mb_res) <- tryTc (tcSimplifyDefault [mkClassPred cls [ty]])
 	; return (isJust mb_res) }
     
-defaultDeclCtxt = ptext SLIT("When checking the types in a default declaration")
+defaultDeclCtxt = ptext (sLit "When checking the types in a default declaration")
 
 dupDefaultDeclErr (L _ (DefaultDecl _) : dup_things)
-  = hang (ptext SLIT("Multiple default declarations"))
+  = hang (ptext (sLit "Multiple default declarations"))
       4  (vcat (map pp dup_things))
   where
-    pp (L locn (DefaultDecl _)) = ptext SLIT("here was another default declaration") <+> ppr locn
+    pp (L locn (DefaultDecl _)) = ptext (sLit "here was another default declaration") <+> ppr locn
 
 polyDefErr ty 
-  = hang (ptext SLIT("Illegal polymorphic type in default declaration") <> colon) 4 (ppr ty) 
+  = hang (ptext (sLit "Illegal polymorphic type in default declaration") <> colon) 4 (ppr ty) 
 
 badDefaultTy ty deflt_clss
-  = hang (ptext SLIT("The default type") <+> quotes (ppr ty) <+> ptext SLIT("is not an instance of"))
-       2 (foldr1 (\a b -> a <+> ptext SLIT("or") <+> b) (map (quotes. ppr) deflt_clss))
+  = hang (ptext (sLit "The default type") <+> quotes (ppr ty) <+> ptext (sLit "is not an instance of"))
+       2 (foldr1 (\a b -> a <+> ptext (sLit "or") <+> b) (map (quotes. ppr) deflt_clss))
 \end{code}