1 files changed, 14 insertions, 12 deletions
diff --git a/src/Haddock/Interface/Rename.hs b/src/Haddock/Interface/Rename.hs
index aa1a170f..566e3acb 100644
--- a/src/Haddock/Interface/Rename.hs
+++ b/src/Haddock/Interface/Rename.hs
@@ -260,7 +260,6 @@ renameLContext (L loc context) = do
   context' <- mapM renameLType context
   return (L loc context')
 
-
 renameInstHead :: InstHead Name -> RnM (InstHead DocName)
 renameInstHead (className, k, types, rest) = do
   className' <- rename className
@@ -365,19 +364,22 @@ renameDataDefn (HsDataDefn { dd_ND = nd, dd_ctxt = lcontext, dd_cType = cType
                        , dd_kindSig = k', dd_cons = cons', dd_derivs = Nothing })
 
 renameCon :: ConDecl Name -> RnM (ConDecl DocName)
-renameCon decl@(ConDecl { con_name = lname, con_qvars = ltyvars
+renameCon decl@(ConDecl { con_names = lnames, con_qvars = ltyvars
                         , con_cxt = lcontext, con_details = details
                         , con_res = restype, con_doc = mbldoc }) = do
-      lname'    <- renameL lname
+      lnames'   <- mapM renameL lnames
       ltyvars'  <- renameLTyVarBndrs ltyvars
       lcontext' <- renameLContext lcontext
       details'  <- renameDetails details
       restype'  <- renameResType restype
       mbldoc'   <- mapM renameLDocHsSyn mbldoc
-      return (decl { con_name = lname', con_qvars = ltyvars', con_cxt = lcontext'
+      return (decl { con_names = lnames', con_qvars = ltyvars', con_cxt = lcontext'
                    , con_details = details', con_res = restype', con_doc = mbldoc' })
+
   where
-    renameDetails (RecCon fields) = return . RecCon =<< mapM renameConDeclFieldField fields
+    renameDetails (RecCon fields) = do
+      fields' <- mapM renameConDeclFieldField fields
+      return (RecCon fields')
     renameDetails (PrefixCon ps) = return . PrefixCon =<< mapM renameLType ps
     renameDetails (InfixCon a b) = do
       a' <- renameLType a
@@ -388,12 +390,12 @@ renameCon decl@(ConDecl { con_name = lname, con_qvars = ltyvars
     renameResType (ResTyGADT t) = return . ResTyGADT =<< renameLType t
 
 
-renameConDeclFieldField :: ConDeclField Name -> RnM (ConDeclField DocName)
-renameConDeclFieldField (ConDeclField name t doc) = do
-  name' <- renameL name
+renameConDeclFieldField :: LConDeclField Name -> RnM (LConDeclField DocName)
+renameConDeclFieldField (L l (ConDeclField names t doc)) = do
+  names' <- mapM renameL names
   t'   <- renameLType t
   doc' <- mapM renameLDocHsSyn doc
-  return (ConDeclField name' t' doc')
+  return $ L l (ConDeclField names' t' doc')
 
 
 renameSig :: Sig Name -> RnM (Sig DocName)
@@ -409,9 +411,9 @@ renameSig sig = case sig of
     lprov' <- renameLContext lprov
     lty' <- renameLType lty
     return $ PatSynSig lname' (flag, qtvs') lreq' lprov' lty'
-  FixSig (FixitySig lname fixity) -> do
-    lname' <- renameL lname
-    return $ FixSig (FixitySig lname' fixity)
+  FixSig (FixitySig lnames fixity) -> do
+    lnames' <- mapM renameL lnames
+    return $ FixSig (FixitySig lnames' fixity)
   MinimalSig s -> MinimalSig <$> traverse renameL s
   -- we have filtered out all other kinds of signatures in Interface.Create
   _ -> error "expected TypeSig"