diff options
| author | Alex Biehl <alexbiehl@gmail.com> | 2017-06-23 18:30:45 +0200 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2017-06-23 18:30:45 +0200 |
| commit | 2d919a367139482cd76398ca1e90dff6f5427779 (patch) | |
| tree | 40a7faef20a633d831d8e098f02c2b6bfbfe61c0 /haddock-api/src/Haddock | |
| parent | cf7addb983bd2079b221199f8ec09c8edaeb8956 (diff) | |
Don't include names with empty subordinates in maps (#644)
These are unecessary anyway and just blow up interface size
Diffstat (limited to 'haddock-api/src/Haddock')
| -rw-r--r-- | haddock-api/src/Haddock/Interface/Create.hs | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/haddock-api/src/Haddock/Interface/Create.hs b/haddock-api/src/Haddock/Interface/Create.hs index 0984894d..50643e2a 100644 --- a/haddock-api/src/Haddock/Interface/Create.hs +++ b/haddock-api/src/Haddock/Interface/Create.hs @@ -317,7 +317,12 @@ mkMaps :: DynFlags mkMaps dflags gre instances decls = let (a, b, c, d) = unzip4 $ map mappings decls - in (f' $ map (nubByName fst) a , f b, f c, f d, instanceMap) + in ( f' (map (nubByName fst) a) + , f (filterMapping (not . M.null) b) + , f (filterMapping (not . null) c) + , f (filterMapping (not . null) d) + , instanceMap + ) where f :: (Ord a, Monoid b) => [[(a, b)]] -> Map a b f = M.fromListWith (<>) . concat @@ -325,6 +330,9 @@ mkMaps dflags gre instances decls = f' :: [[(Name, MDoc Name)]] -> Map Name (MDoc Name) f' = M.fromListWith metaDocAppend . concat + filterMapping :: (b -> Bool) -> [[(a, b)]] -> [[(a, b)]] + filterMapping p = map (filter (p . snd)) + mappings :: (LHsDecl Name, [HsDocString]) -> ( [(Name, MDoc Name)] , [(Name, Map Int (MDoc Name))] |