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Fix Trac #3964: view patterns in DsArrows
author
simonpj@microsoft.com
<unknown>
Fri, 9 Apr 2010 16:55:57 +0000
(16:55 +0000)
committer
simonpj@microsoft.com
<unknown>
Fri, 9 Apr 2010 16:55:57 +0000
(16:55 +0000)
Just a missing case; I've eliminated the catch-all so
that we get a warning next time we extend HsPat
compiler/deSugar/DsArrows.lhs
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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 p = pprPanic "collectl/go" (ppr p)
+ go (ViewPat _ pat _) = collectl pat bndrs
+ go p@(QuasiQuotePat {}) = pprPanic "collectl/go" (ppr p)
\end{code}