diff options
Diffstat (limited to 'haddock-api')
| -rw-r--r-- | haddock-api/src/Haddock.hs | 21 | ||||
| -rw-r--r-- | haddock-api/src/Haddock/InterfaceFile.hs | 6 | ||||
| -rw-r--r-- | haddock-api/src/Haddock/Options.hs | 3 |
3 files changed, 23 insertions, 7 deletions
diff --git a/haddock-api/src/Haddock.hs b/haddock-api/src/Haddock.hs index 00eb50f6..40da7ceb 100644 --- a/haddock-api/src/Haddock.hs +++ b/haddock-api/src/Haddock.hs @@ -159,16 +159,21 @@ haddockWithGhc ghc args = handleTopExceptions $ do Just "YES" -> return $ Flag_OptGhc "-dynamic-too" : flags _ -> return flags + -- bypass the interface version check + let noChecks = Flag_BypassInterfaceVersonCheck `elem` flags + unless (Flag_NoWarnings `elem` flags) $ do hypSrcWarnings flags forM_ (warnings args) $ \warning -> do hPutStrLn stderr warning + when noChecks $ + hPutStrLn stderr noCheckWarning ghc flags' $ do dflags <- getDynFlags forM_ (optShowInterfaceFile flags) $ \path -> liftIO $ do - mIfaceFile <- readInterfaceFiles freshNameCache [(("", Nothing), path)] + mIfaceFile <- readInterfaceFiles freshNameCache [(("", Nothing), path)] noChecks forM_ mIfaceFile $ \(_, ifaceFile) -> do putMsg dflags (renderJson (jsonInterfaceFile ifaceFile)) @@ -190,7 +195,7 @@ haddockWithGhc ghc args = handleTopExceptions $ do throwE "No input file(s)." -- Get packages supplied with --read-interface. - packages <- liftIO $ readInterfaceFiles freshNameCache (readIfaceArgs flags) + packages <- liftIO $ readInterfaceFiles freshNameCache (readIfaceArgs flags) noChecks -- Render even though there are no input files (usually contents/index). liftIO $ renderStep dflags flags sinceQual qual packages [] @@ -201,6 +206,10 @@ warnings = map format . filter (isPrefixOf "-optghc") where format arg = concat ["Warning: `", arg, "' means `-o ", drop 2 arg, "', did you mean `-", arg, "'?"] +-- | Create a warning about bypassing the interface version check +noCheckWarning :: String +noCheckWarning = "Warning: `--bypass-interface-version-check' can cause " ++ + "Haddock to crash when reading Haddock interface files." withGhc :: [Flag] -> Ghc a -> IO a withGhc flags action = do @@ -218,7 +227,8 @@ readPackagesAndProcessModules :: [Flag] -> [String] -> Ghc ([(DocPaths, InterfaceFile)], [Interface], LinkEnv) readPackagesAndProcessModules flags files = do -- Get packages supplied with --read-interface. - packages <- readInterfaceFiles nameCacheFromGhc (readIfaceArgs flags) + let noChecks = Flag_BypassInterfaceVersonCheck `elem` flags + packages <- readInterfaceFiles nameCacheFromGhc (readIfaceArgs flags) noChecks -- Create the interfaces -- this is the core part of Haddock. let ifaceFiles = map snd packages @@ -398,13 +408,14 @@ render dflags flags sinceQual qual ifaces installedIfaces extSrcMap = do readInterfaceFiles :: MonadIO m => NameCacheAccessor m -> [(DocPaths, FilePath)] + -> Bool -> m [(DocPaths, InterfaceFile)] -readInterfaceFiles name_cache_accessor pairs = do +readInterfaceFiles name_cache_accessor pairs bypass_version_check = do catMaybes `liftM` mapM ({-# SCC readInterfaceFile #-} tryReadIface) pairs where -- try to read an interface, warn if we can't tryReadIface (paths, file) = - readInterfaceFile name_cache_accessor file >>= \case + readInterfaceFile name_cache_accessor file bypass_version_check >>= \case Left err -> liftIO $ do putStrLn ("Warning: Cannot read " ++ file ++ ":") putStrLn (" " ++ err) diff --git a/haddock-api/src/Haddock/InterfaceFile.hs b/haddock-api/src/Haddock/InterfaceFile.hs index 57886999..30bd2b9a 100644 --- a/haddock-api/src/Haddock/InterfaceFile.hs +++ b/haddock-api/src/Haddock/InterfaceFile.hs @@ -190,8 +190,9 @@ readInterfaceFile :: forall m. MonadIO m => NameCacheAccessor m -> FilePath + -> Bool -- ^ Disable version check. Can cause runtime crash. -> m (Either String InterfaceFile) -readInterfaceFile (get_name_cache, set_name_cache) filename = do +readInterfaceFile (get_name_cache, set_name_cache) filename bypass_checks = do bh0 <- liftIO $ readBinMem filename magic <- liftIO $ get bh0 @@ -200,7 +201,8 @@ readInterfaceFile (get_name_cache, set_name_cache) filename = do case () of _ | magic /= binaryInterfaceMagic -> return . Left $ "Magic number mismatch: couldn't load interface file: " ++ filename - | version `notElem` binaryInterfaceVersionCompatibility -> return . Left $ + | not bypass_checks + , (version `notElem` binaryInterfaceVersionCompatibility) -> return . Left $ "Interface file is of wrong version: " ++ filename | otherwise -> with_name_cache $ \update_nc -> do diff --git a/haddock-api/src/Haddock/Options.hs b/haddock-api/src/Haddock/Options.hs index b5e987d8..e89fcbde 100644 --- a/haddock-api/src/Haddock/Options.hs +++ b/haddock-api/src/Haddock/Options.hs @@ -84,6 +84,7 @@ data Flag | Flag_Version | Flag_CompatibleInterfaceVersions | Flag_InterfaceVersion + | Flag_BypassInterfaceVersonCheck | Flag_UseContents String | Flag_GenContents | Flag_UseIndex String @@ -175,6 +176,8 @@ options backwardsCompat = "output compatible interface file versions and exit", Option [] ["interface-version"] (NoArg Flag_InterfaceVersion) "output interface file version and exit", + Option [] ["bypass-interface-version-check"] (NoArg Flag_BypassInterfaceVersonCheck) + "bypass the interface file version check (dangerous)", Option ['v'] ["verbosity"] (ReqArg Flag_Verbosity "VERBOSITY") "set verbosity level", Option [] ["use-contents"] (ReqArg Flag_UseContents "URL") |