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-rw-r--r--src/Haddock/Backends/Xhtml.hs7
1 files changed, 5 insertions, 2 deletions
diff --git a/src/Haddock/Backends/Xhtml.hs b/src/Haddock/Backends/Xhtml.hs
index 600a5362..b639760d 100644
--- a/src/Haddock/Backends/Xhtml.hs
+++ b/src/Haddock/Backends/Xhtml.hs
@@ -41,6 +41,7 @@ import System.FilePath hiding ( (</>) )
import System.Directory
import Data.Map ( Map )
import qualified Data.Map as Map hiding ( Map )
+import qualified Data.Set as Set hiding ( Set )
import Data.Function
import Data.Ord ( comparing )
@@ -415,9 +416,11 @@ ppHtmlIndex odir doctitle _maybe_package themes
getIfaceIndex iface =
[ (getOccString name
- , Map.fromList [(name, [(mdl, name `elem` instVisibleExports iface)])])
+ , Map.fromList [(name, [(mdl, name `Set.member` visible)])])
| name <- instExports iface ]
- where mdl = instMod iface
+ where
+ mdl = instMod iface
+ visible = Set.fromList (instVisibleExports iface)
indexElt :: (String, Map GHC.Name [(Module,Bool)]) -> HtmlTable
indexElt (str, entities) =