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fix in PGF.Printer

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krasimir
2010-02-17 10:31:10 +00:00
parent d91ffecfa4
commit e54ac49769
1 changed files with 4 additions and 2 deletions
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6
src/runtime/haskell/PGF/Type.hs
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@@ -87,11 +87,13 @@ pType = do
ppType :: Int -> [CId] -> Type -> PP.Doc
ppType d scope (DTyp hyps cat args)
| null hyps = ppParens (d > 3) (ppRes scope cat args)
| null hyps = ppRes scope cat args
| otherwise = let (scope',hdocs) = mapAccumL (ppHypo 1) scope hyps
in ppParens (d > 0) (foldr (\hdoc doc -> hdoc PP.<+> PP.text "->" PP.<+> doc) (ppRes scope' cat args) hdocs)
where
ppRes scope cat es = ppCId cat PP.<+> PP.hsep (map (ppExpr 4 scope) es)
ppRes scope cat es
| null es = ppCId cat
| otherwise = ppParens (d > 3) (ppCId cat PP.<+> PP.hsep (map (ppExpr 4 scope) es))
ppHypo :: Int -> [CId] -> (BindType,CId,Type) -> ([CId],PP.Doc)
ppHypo d scope (Explicit,x,typ) = if x == wildCId