X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=ghc%2Fcompiler%2Ftypecheck%2FTcTyClsDecls.lhs;h=95166861ec668c6e0a09546ffc9f5e52a645de73;hb=6a4854eaa266d994ebd0d471614a52b43dd329d9;hp=0c2054e4fe58943090952d078898f58b55ca2735;hpb=2b65c00d358287b432c8fb267a5cb3a754580d45;p=ghc-hetmet.git

diff --git a/ghc/compiler/typecheck/TcTyClsDecls.lhs b/ghc/compiler/typecheck/TcTyClsDecls.lhs
index 0c2054e..9516686 100644
--- a/ghc/compiler/typecheck/TcTyClsDecls.lhs
+++ b/ghc/compiler/typecheck/TcTyClsDecls.lhs
@@ -650,7 +650,7 @@ checkValidClass cls
 
 		-- Check that for a generic method, the type of 
 		-- the method is sufficiently simple
-	; checkTc (dm /= GenDefMeth || validGenericMethodType op_ty)
+	; checkTc (dm /= GenDefMeth || validGenericMethodType tau)
 		  (badGenericMethodType op_name op_ty)
 	}
 	where
@@ -702,7 +702,7 @@ genericMultiParamErr clas
 badGenericMethodType op op_ty
   = hang (ptext SLIT("Generic method type is too complex"))
        4 (vcat [ppr op <+> dcolon <+> ppr op_ty,
-		ptext SLIT("You can only use type variables, arrows, and tuples")])
+		ptext SLIT("You can only use type variables, arrows, lists, and tuples")])
 
 recSynErr syn_decls
   = setSrcSpan (getLoc (head sorted_decls)) $