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-rw-r--r--haddock-api/src/Haddock/GhcUtils.hs5
1 files changed, 5 insertions, 0 deletions
diff --git a/haddock-api/src/Haddock/GhcUtils.hs b/haddock-api/src/Haddock/GhcUtils.hs
index dcc1d834..4280cd80 100644
--- a/haddock-api/src/Haddock/GhcUtils.hs
+++ b/haddock-api/src/Haddock/GhcUtils.hs
@@ -88,6 +88,10 @@ filterSigNames p (ClassOpSig is_default ns ty) =
case filter (p . unLoc) ns of
[] -> Nothing
filtered -> Just (ClassOpSig is_default filtered ty)
+filterSigNames p (PatSynSig ns ty) =
+ case filter (p . unLoc) ns of
+ [] -> Nothing
+ filtered -> Just (PatSynSig filtered ty)
filterSigNames _ _ = Nothing
ifTrueJust :: Bool -> name -> Maybe name
@@ -110,6 +114,7 @@ sigNameNoLoc _ = []
isUserLSig :: LSig name -> Bool
isUserLSig (L _(TypeSig {})) = True
isUserLSig (L _(ClassOpSig {})) = True
+isUserLSig (L _(PatSynSig {})) = True
isUserLSig _ = False