diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/Haddock/Interface/Create.hs | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/src/Haddock/Interface/Create.hs b/src/Haddock/Interface/Create.hs index eb0d5f0d..2d903133 100644 --- a/src/Haddock/Interface/Create.hs +++ b/src/Haddock/Interface/Create.hs @@ -641,8 +641,21 @@ moduleExports thisMod expMod dflags gre _exports decls ifaceMap instIfaceMap map fullModuleContents :: DynFlags -> GlobalRdrEnv -> Maps -> [LHsDecl Name] -> ErrMsgGhc [ExportItem Name] fullModuleContents dflags gre (docMap, argMap, subMap, declMap) decls = - liftM catMaybes $ mapM mkExportItem decls + liftM catMaybes $ mapM mkExportItem (expandSig decls) where + -- A type signature can have multiple names, like: + -- foo, bar :: Types.. + -- + -- We go through the list of declarations and expand type signatures, so + -- that every type signature has exactly one name! + expandSig :: [LHsDecl name] -> [LHsDecl name] + expandSig = foldr f [] + where + f :: LHsDecl name -> [LHsDecl name] -> [LHsDecl name] + f (L l (SigD (TypeSig names t))) xs = foldr (\n acc -> L l (SigD (TypeSig [n] t)) : acc) xs names + f (L l (SigD (GenericSig names t))) xs = foldr (\n acc -> L l (SigD (GenericSig [n] t)) : acc) xs names + f x xs = x : xs + mkExportItem (L _ (DocD (DocGroup lev docStr))) = do mbDoc <- liftErrMsg $ lexParseRnHaddockComment dflags DocSectionComment gre docStr return $ fmap (ExportGroup lev "") mbDoc |