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Fix Trac #3964: view patterns in DsArrows
[ghc-hetmet.git]
/
compiler
/
deSugar
/
DsArrows.lhs
diff --git
a/compiler/deSugar/DsArrows.lhs
b/compiler/deSugar/DsArrows.lhs
index
b1a4c59
..
d50aa3e
100644
(file)
--- a/
compiler/deSugar/DsArrows.lhs
+++ b/
compiler/deSugar/DsArrows.lhs
@@
-1066,5
+1066,6
@@
collectl (L _ pat) bndrs
go (SigPatOut pat _) = collectl pat bndrs
go (TypePat _) = bndrs
go (CoPat _ pat _) = collectl (noLoc pat) bndrs
go (SigPatOut pat _) = collectl pat bndrs
go (TypePat _) = bndrs
go (CoPat _ pat _) = collectl (noLoc pat) bndrs
- go p = pprPanic "collectl/go" (ppr p)
+ go (ViewPat _ pat _) = collectl pat bndrs
+ go p@(QuasiQuotePat {}) = pprPanic "collectl/go" (ppr p)
\end{code}
\end{code}