Whitespace only (TcInstDcls)

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

diff --git a/compiler/typecheck/TcDefaults.lhs b/compiler/typecheck/TcDefaults.lhs
index 01d7fb2..66064c0 100644 (file)
--- a/compiler/typecheck/TcDefaults.lhs
+++ b/compiler/typecheck/TcDefaults.lhs
@@ -5,17 +5,15 @@
 \section[TcDefaults]{Typechecking \tr{default} declarations}
 
 \begin{code}
-{-# OPTIONS_GHC -w #-}
+{-# 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/WorkingConventions#Warnings
+--     http://hackage.haskell.org/trac/ghc/wiki/Commentary/CodingStyle#Warnings
 -- for details
 
 module TcDefaults ( tcDefaults ) where
 
-#include "HsVersions.h"
-
 import HsSyn
 import Name
 import Class
@@ -29,6 +27,7 @@ import DynFlags
 import SrcLoc
 import Maybe
 import Outputable
+import FastString
 \end{code}
 
 \begin{code}
@@ -50,7 +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                    $
@@ -61,7 +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) }
 
@@ -86,19 +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}