Include language in ModuleEx

Author: amesgen

src/GHC/All.hs

@@ -84,8 +84,9 @@ data ParseError = ParseError
     }
 
 -- | Result of 'parseModuleEx', representing a parsed module.
-newtype ModuleEx = ModuleEx {
+data ModuleEx = ModuleEx {
     ghcModule :: Located HsModule
+  , ghcLanguage :: Maybe Language
 }
 
 -- | Extract a complete list of all the comments in a module.
@@ -147,10 +148,10 @@ parseDeclGhcWithMode parseMode s =
 -- | Create a 'ModuleEx' from a GHC module. It is assumed the incoming
 -- parsed module has not been adjusted to account for operator
 -- fixities (it uses the HLint default fixities).
-createModuleEx :: Located HsModule -> ModuleEx
+createModuleEx :: Located HsModule -> Maybe Language -> ModuleEx
 createModuleEx = createModuleExWithFixities (map toFixity defaultFixities)
 
-createModuleExWithFixities :: [(String, Fixity)] -> Located HsModule -> ModuleEx
+createModuleExWithFixities :: [(String, Fixity)] -> Located HsModule -> Maybe Language -> ModuleEx
 createModuleExWithFixities fixities ast =
   ModuleEx (applyFixities (fixitiesFromModule ast ++ fixities) ast)
 
@@ -188,7 +189,7 @@ parseModuleEx flags file str = timedIO "Parse" file $ runExceptT $ do
         ExceptT $ parseFailureErr dynFlags str file str errs
       else do
         let fixes = fixitiesFromModule a ++ ghcFixitiesFromParseFlags flags
-        pure $ ModuleEx (applyFixities fixes a)
+        pure $ ModuleEx (applyFixities fixes a) (language dynFlags)
     PFailed s ->
       ExceptT $ parseFailureErr dynFlags str file str $ bagToList . getMessages  $ GhcPsMessage <$> snd (getPsMessages s)
   where

src/Hint/Duplicate.hs

@@ -57,7 +57,7 @@ duplicateHint ms =
          ]
     where
       ds = [(modName m, fromMaybe "" (declName d), unLoc d)
-           | ModuleEx m <- map snd ms
+           | ModuleEx {ghcModule = m} <- map snd ms
            , d <- hsmodDecls (unLoc m)]
 
 dupes :: (Outputable e, Data e) => [(String, String, [LocatedA e])] -> [Idea]

src/Hint/Export.hs

@@ -22,7 +22,7 @@ import GHC.Types.Name.Occurrence
 import GHC.Types.Name.Reader
 
 exportHint :: ModuHint
-exportHint _ (ModuleEx (L s m@HsModule {hsmodName = Just name, hsmodExports = exports}) )
+exportHint _ ModuleEx {ghcModule = L s m@HsModule {hsmodName = Just name, hsmodExports = exports}}
   | Nothing <- exports =
       let r = o{ hsmodExports = Just (noLocA [noLocA (IEModuleContents EpAnnNotUsed name)] )} in
       [(ignore "Use module export list" (L s o) (noLoc r) []){ideaNote = [Note "an explicit list is usually better"]}]

src/Hint/Unsafe.hs

@@ -46,7 +46,7 @@ import Language.Haskell.GhclibParserEx.GHC.Utils.Outputable
 -- @
 -- is. We advise that such constants should have a @NOINLINE@ pragma.
 unsafeHint :: DeclHint
-unsafeHint _ (ModuleEx (L _ m)) = \ld@(L loc d) ->
+unsafeHint _ ModuleEx {ghcModule = L _ m} = \ld@(L loc d) ->
   [rawIdea Hint.Type.Warning "Missing NOINLINE pragma" (locA loc)
          (unsafePrettyPrint d)
          (Just $ trimStart (unsafePrettyPrint $ gen x) ++ "\n" ++ unsafePrettyPrint d)