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-rw-r--r--src/runtime/haskell/PGF.hs3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/runtime/haskell/PGF.hs b/src/runtime/haskell/PGF.hs
index a2a2154bb..9cb23bf50 100644
--- a/src/runtime/haskell/PGF.hs
+++ b/src/runtime/haskell/PGF.hs
@@ -302,7 +302,8 @@ browse pgf id = fmap (\def -> (def,producers,consumers)) definition
Just (ty,_,Just eqs) -> Just $ render (text "fun" <+> ppCId id <+> colon <+> ppType 0 [] ty $$
if null eqs
then empty
- else text "def" <+> vcat [let (scope,ds) = mapAccumL (ppPatt 9) [] patts
+ else text "def" <+> vcat [let scope = foldl pattScope [] patts
+ ds = map (ppPatt 9 scope) patts
in ppCId id <+> hsep ds <+> char '=' <+> ppExpr 0 scope res | Equ patts res <- eqs])
Just (ty,_,Nothing ) -> Just $ render (text "data" <+> ppCId id <+> colon <+> ppType 0 [] ty)
Nothing -> case Map.lookup id (cats (abstract pgf)) of