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Minor type printing amomaly
author
simonpj@microsoft.com
<unknown>
Fri, 17 Sep 2010 14:02:04 +0000
(14:02 +0000)
committer
simonpj@microsoft.com
<unknown>
Fri, 17 Sep 2010 14:02:04 +0000
(14:02 +0000)
compiler/types/TypeRep.lhs
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diff --git
a/compiler/types/TypeRep.lhs
b/compiler/types/TypeRep.lhs
index
fafbaab
..
e80bd4d
100644
(file)
--- 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
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
ppr_forall_type :: Prec -> Type -> SDoc
ppr_forall_type p ty