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Pretty printing change
author
simonpj@microsoft.com
<unknown>
Wed, 18 Aug 2010 06:54:36 +0000
(06:54 +0000)
committer
simonpj@microsoft.com
<unknown>
Wed, 18 Aug 2010 06:54:36 +0000
(06:54 +0000)
compiler/types/TypeRep.lhs
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diff --git
a/compiler/types/TypeRep.lhs
b/compiler/types/TypeRep.lhs
index
55beb28
..
74e0bdf
100644
(file)
--- a/
compiler/types/TypeRep.lhs
+++ b/
compiler/types/TypeRep.lhs
@@
-449,7
+449,8
@@
pprClassPred :: Class -> [Type] -> SDoc
pprClassPred clas tys = ppr_type_app TopPrec (getName clas) tys
pprTheta :: ThetaType -> SDoc
-pprTheta theta = parens (sep (punctuate comma (map pprPred theta)))
+pprTheta [pred] = pprPred pred
+pprTheta theta = parens (sep (punctuate comma (map pprPred theta)))
pprThetaArrow :: ThetaType -> SDoc
pprThetaArrow [] = empty