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-rw-r--r--src/Haddock/Backends/Xhtml/Decl.hs6
1 files changed, 2 insertions, 4 deletions
diff --git a/src/Haddock/Backends/Xhtml/Decl.hs b/src/Haddock/Backends/Xhtml/Decl.hs
index 5cdc819c..3cfba1de 100644
--- a/src/Haddock/Backends/Xhtml/Decl.hs
+++ b/src/Haddock/Backends/Xhtml/Decl.hs
@@ -26,7 +26,6 @@ import Haddock.Backends.Xhtml.Utils
import Haddock.GhcUtils
import Haddock.Types
-import Control.Monad ( join )
import Data.List ( intersperse )
import qualified Data.Map as Map
import Data.Maybe
@@ -589,8 +588,7 @@ ppSideBySideConstr subdocs unicode qual (L _ con) = (decl, mbDoc, fieldPart)
forall_ = con_explicit con
-- don't use "con_doc con", in case it's reconstructed from a .hi file,
-- or also because we want Haddock to do the doc-parsing, not GHC.
- -- 'join' is in Maybe.
- mbDoc = join $ fmap fst $ lookup (unLoc $ con_name con) subdocs
+ mbDoc = lookup (unLoc $ con_name con) subdocs >>= fst
mkFunTy a b = noLoc (HsFunTy a b)
@@ -602,7 +600,7 @@ ppSideBySideField subdocs unicode qual (ConDeclField (L _ name) ltype _) =
[])
where
-- don't use cd_fld_doc for same reason we don't use con_doc above
- mbDoc = join $ fmap fst $ lookup name subdocs
+ mbDoc = lookup name subdocs >>= fst
ppShortField :: Bool -> Bool -> Qualification -> ConDeclField DocName -> Html