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-rw-r--r--haddock-api/src/Haddock/Interface/Create.hs21
1 files changed, 11 insertions, 10 deletions
diff --git a/haddock-api/src/Haddock/Interface/Create.hs b/haddock-api/src/Haddock/Interface/Create.hs
index 75e7e9a1..f218853b 100644
--- a/haddock-api/src/Haddock/Interface/Create.hs
+++ b/haddock-api/src/Haddock/Interface/Create.hs
@@ -312,16 +312,17 @@ mkDocOpts mbOpts flags mdl = do
[] -> tell ["No option supplied to DOC_OPTION/doc_option"] >> return []
xs -> liftM catMaybes (mapM parseOption xs)
Nothing -> return []
- hm <- if Flag_HideModule (moduleString mdl) `elem` flags
- then return $ OptHide : opts
- else return opts
- ie <- if Flag_IgnoreAllExports `elem` flags
- then return $ OptIgnoreExports : hm
- else return hm
- se <- if Flag_ShowExtensions (moduleString mdl) `elem` flags
- then return $ OptShowExtensions : ie
- else return ie
- return se
+ pure (foldl go opts flags)
+ where
+ mdlStr = moduleString mdl
+
+ -- Later flags override earlier ones
+ go os m | m == Flag_HideModule mdlStr = OptHide : os
+ | m == Flag_ShowModule mdlStr = filter (/= OptHide) os
+ | m == Flag_ShowAllModules = filter (/= OptHide) os
+ | m == Flag_IgnoreAllExports = OptIgnoreExports : os
+ | m == Flag_ShowExtensions mdlStr = OptIgnoreExports : os
+ | otherwise = os
parseOption :: String -> ErrMsgM (Maybe DocOption)
parseOption "hide" = return (Just OptHide)