X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=compiler%2Ftypes%2FTypeRep.lhs;h=e80bd4d8a6d8b832732a5b9938a72aed5ba2bacd;hb=67ed735fab12c12a1d48878d7bda33588c67fb78;hp=fafbaab1d27df759b5ad8d84504350ee0f9070fe;hpb=d2ce0f52d42edf32bb9f13796e6ba6edba8bd516;p=ghc-hetmet.git

diff --git a/compiler/types/TypeRep.lhs b/compiler/types/TypeRep.lhs
index fafbaab..e80bd4d 100644
--- a/compiler/types/TypeRep.lhs
+++ b/compiler/types/TypeRep.lhs
@@ -503,8 +503,11 @@ ppr_type p (FunTy ty1 ty2)
     maybeParen p FunPrec $
     sep (ppr_type FunPrec ty1 : ppr_fun_tail ty2)
   where
-    ppr_fun_tail (FunTy ty1 ty2) = (arrow <+> ppr_type FunPrec ty1) : ppr_fun_tail ty2
-    ppr_fun_tail other_ty        = [arrow <+> pprType other_ty]
+    ppr_fun_tail (FunTy ty1 ty2) 
+      | not (is_pred ty1) = (arrow <+> ppr_type FunPrec ty1) : ppr_fun_tail ty2
+    ppr_fun_tail other_ty = [arrow <+> pprType other_ty]
+    is_pred (PredTy {}) = True
+    is_pred _           = False
 
 ppr_forall_type :: Prec -> Type -> SDoc
 ppr_forall_type p ty