Drop min_version_ghc (8.8.4 is min supported)

Author: andys8

ghcide/src/Development/IDE/Core/Compile.hs

@@ -1181,9 +1181,7 @@ getModSummaryFromImports env fp modTime contents = do
         msrModSummary =
             ModSummary
                 { ms_mod          = modl
-#if MIN_VERSION_ghc(8,8,0)
                 , ms_hie_date     = Nothing
-#endif
 #if MIN_VERSION_ghc(9,3,0)
                 , ms_dyn_obj_date    = Nothing
                 , ms_ghc_prim_import = ghc_prim_import

ghcide/src/Development/IDE/Core/Rules.hs

@@ -62,9 +62,6 @@ module Development.IDE.Core.Rules(
     DisplayTHWarning(..),
     ) where
 
-#if !MIN_VERSION_ghc(8,8,0)
-import           Control.Applicative                          (liftA2)
-#endif
 import           Control.Concurrent.Async                     (concurrently)
 import           Control.Concurrent.Strict
 import           Control.DeepSeq

ghcide/src/Development/IDE/Core/Tracing.hs

@@ -37,25 +37,16 @@ import           OpenTelemetry.Eventlog            (SpanInFlight (..), addEvent,
                                                     beginSpan, endSpan, setTag,
                                                     withSpan)
 
-#if MIN_VERSION_ghc(8,8,0)
-otTracedProvider :: MonadUnliftIO m => PluginId -> ByteString -> m a -> m a
-otTracedGarbageCollection :: (MonadMask f, MonadIO f, Show a) => ByteString -> f [a] -> f [a]
-withEventTrace :: (MonadMask m, MonadIO m) => String -> ((ByteString -> m ()) -> m a) -> m a
-#else
-otTracedProvider :: MonadUnliftIO m => PluginId -> String -> m a -> m a
-otTracedGarbageCollection :: (MonadMask f, MonadIO f, Show a) => String -> f [a] -> f [a]
-withEventTrace :: (MonadMask m, MonadIO m) => String -> ((ByteString -> m ()) -> m a) -> m a
-#endif
 
-withTrace :: (MonadMask m, MonadIO m) =>
-    String -> ((String -> String -> m ()) -> m a) -> m a
+withTrace :: (MonadMask m, MonadIO m) => String -> ((String -> String -> m ()) -> m a) -> m a
 withTrace name act
   | userTracingEnabled
   = withSpan (fromString name) $ \sp -> do
       let setSpan' k v = setTag sp (fromString k) (fromString v)
       act setSpan'
   | otherwise = act (\_ _ -> pure ())
 
+withEventTrace :: (MonadMask m, MonadIO m) => String -> ((ByteString -> m ()) -> m a) -> m a
 withEventTrace name act
   | userTracingEnabled
   = withSpan (fromString name) $ \sp -> do
@@ -125,6 +116,7 @@ otTracedAction key file mode result act
         (\sp -> act (liftIO . setTag sp "diagnostics" . encodeUtf8 . showDiagnostics ))
   | otherwise = act (\_ -> return ())
 
+otTracedGarbageCollection :: (MonadMask f, MonadIO f, Show a) => ByteString -> f [a] -> f [a]
 otTracedGarbageCollection label act
   | userTracingEnabled = fst <$>
       generalBracket
@@ -138,6 +130,7 @@ otTracedGarbageCollection label act
         (const act)
   | otherwise = act
 
+otTracedProvider :: MonadUnliftIO m => PluginId -> ByteString -> m a -> m a
 otTracedProvider (PluginId pluginName) provider act
   | userTracingEnabled = do
     runInIO <- askRunInIO
@@ -146,4 +139,3 @@ otTracedProvider (PluginId pluginName) provider act
         runInIO act
   | otherwise = act
 
-

ghcide/src/Development/IDE/GHC/Compat.hs

@@ -228,18 +228,8 @@ import           DynFlags                              hiding (ExposePackage)
 import           HscTypes
 import           MkIface                               hiding (writeIfaceFile)
 
-#if MIN_VERSION_ghc(8,8,0)
 import           StringBuffer                          (hPutStringBuffer)
-#endif
 import qualified SysTools
-
-#if !MIN_VERSION_ghc(8,8,0)
-import qualified EnumSet
-import           SrcLoc                                (RealLocated)
-
-import           Foreign.ForeignPtr
-import           System.IO
-#endif
 #endif
 
 import           Compat.HieAst                         (enrichHie)
@@ -385,13 +375,6 @@ corePrepExpr _ = GHC.corePrepExpr
 simplifyExpr df _ = GHC.simplifyExpr df
 #endif
 
-#if !MIN_VERSION_ghc(8,8,0)
-hPutStringBuffer :: Handle -> StringBuffer -> IO ()
-hPutStringBuffer hdl (StringBuffer buf len cur)
-    = withForeignPtr (plusForeignPtr buf cur) $ \ptr ->
-             hPutBuf hdl ptr len
-#endif
-
 #if MIN_VERSION_ghc(9,2,0)
 type ErrMsg  = MsgEnvelope DecoratedSDoc
 #endif
@@ -445,12 +428,7 @@ hieExportNames = nameListFromAvails . hie_exports
 type NameCacheUpdater = NameCache
 #else
 upNameCache :: IORef NameCache -> (NameCache -> (NameCache, c)) -> IO c
-#if MIN_VERSION_ghc(8,8,0)
 upNameCache = updNameCache
-#else
-upNameCache ref upd_fn
-  = atomicModifyIORef' ref upd_fn
-#endif
 #endif
 
 #if !MIN_VERSION_ghc(9,0,1)
@@ -480,27 +458,15 @@ addIncludePathsQuote path x = x{includePaths = f $ includePaths x}
     where f i = i{includePathsQuote = path : includePathsQuote i}
 
 setHieDir :: FilePath -> DynFlags -> DynFlags
-setHieDir _f d =
-#if MIN_VERSION_ghc(8,8,0)
-    d { hieDir     = Just _f}
-#else
-    d
-#endif
+setHieDir _f d = d { hieDir = Just _f}
 
 dontWriteHieFiles :: DynFlags -> DynFlags
-dontWriteHieFiles d =
-#if MIN_VERSION_ghc(8,8,0)
-    gopt_unset d Opt_WriteHie
-#else
-    d
-#endif
+dontWriteHieFiles d = gopt_unset d Opt_WriteHie
 
 setUpTypedHoles ::DynFlags -> DynFlags
 setUpTypedHoles df
   = flip gopt_unset Opt_AbstractRefHoleFits    -- too spammy
-#if MIN_VERSION_ghc(8,8,0)
   $ flip gopt_unset Opt_ShowDocsOfHoleFits     -- not used
-#endif
   $ flip gopt_unset Opt_ShowMatchesOfHoleFits  -- nice but broken (forgets module qualifiers)
   $ flip gopt_unset Opt_ShowProvOfHoleFits     -- not used
   $ flip gopt_unset Opt_ShowTypeAppOfHoleFits  -- not used
@@ -533,12 +499,6 @@ disableWarningsAsErrors :: DynFlags -> DynFlags
 disableWarningsAsErrors df =
     flip gopt_unset Opt_WarnIsError $ foldl' wopt_unset_fatal df [toEnum 0 ..]
 
-#if !MIN_VERSION_ghc(8,8,0)
-wopt_unset_fatal :: DynFlags -> WarningFlag -> DynFlags
-wopt_unset_fatal dfs f
-    = dfs { fatalWarningFlags = EnumSet.delete f (fatalWarningFlags dfs) }
-#endif
-
 isQualifiedImport :: ImportDecl a -> Bool
 #if MIN_VERSION_ghc(8,10,0)
 isQualifiedImport ImportDecl{ideclQualified = NotQualified} = False

ghcide/src/Development/IDE/GHC/Compat/CPP.hs

@@ -20,11 +20,7 @@ import           FileCleanup
 import           Packages
 import           Panic
 import           SysTools
-#if MIN_VERSION_ghc(8,8,2)
 import           LlvmCodeGen                (llvmVersionList)
-#elif MIN_VERSION_ghc(8,8,0)
-import           LlvmCodeGen                (LlvmVersion (..))
-#endif
 import           Control.Monad
 import           Data.List                  (intercalate)
 import           Data.Maybe
@@ -136,16 +132,9 @@ getBackendDefs :: DynFlags -> IO [String]
 getBackendDefs dflags | hscTarget dflags == HscLlvm = do
     llvmVer <- figureLlvmVersion dflags
     return $ case llvmVer of
-#if MIN_VERSION_ghc(8,8,2)
                Just v
                  | [m] <- llvmVersionList v -> [ "-D__GLASGOW_HASKELL_LLVM__=" ++ format (m, 0) ]
                  | m:n:_   <- llvmVersionList v -> [ "-D__GLASGOW_HASKELL_LLVM__=" ++ format (m, n) ]
-#elif MIN_VERSION_ghc(8,8,0)
-               Just (LlvmVersion n) -> [ "-D__GLASGOW_HASKELL_LLVM__=" ++ format (n,0) ]
-               Just (LlvmVersionOld m n) -> [ "-D__GLASGOW_HASKELL_LLVM__=" ++ format (m,n) ]
-#else
-               Just n -> [ "-D__GLASGOW_HASKELL_LLVM__=" ++ format n ]
-#endif
                _      -> []
   where
     format (major, minor)

ghcide/src/Development/IDE/GHC/Compat/Core.hs

@@ -36,11 +36,9 @@ module Development.IDE.GHC.Compat.Core (
     maxRefHoleFits,
     maxValidHoleFits,
     setOutputFile,
-#if MIN_VERSION_ghc(8,8,0)
     CommandLineOption,
 #if !MIN_VERSION_ghc(9,2,0)
     staticPlugins,
-#endif
 #endif
     sPgm_F,
     settings,
@@ -263,7 +261,7 @@ module Development.IDE.GHC.Compat.Core (
     SrcLoc.noSrcSpan,
     SrcLoc.noSrcLoc,
     SrcLoc.noLoc,
-#if !MIN_VERSION_ghc(8,10,0) && MIN_VERSION_ghc(8,8,0)
+#if !MIN_VERSION_ghc(8,10,0)
     SrcLoc.dL,
 #endif
     -- * Finder
@@ -734,19 +732,12 @@ import           NameCache
 import           NameEnv
 import           NameSet
 import           Packages
-#if MIN_VERSION_ghc(8,8,0)
 import           Panic                        hiding (try)
 import qualified PlainPanic                   as Plain
-#else
-import           Panic                        hiding (GhcException, try)
-import qualified Panic                        as Plain
-#endif
 import           Parser
 import           PatSyn
 import           RnFixity
-#if MIN_VERSION_ghc(8,8,0)
 import           Plugins
-#endif
 import           PprTyThing                   hiding (pprFamInst)
 import           PrelInfo
 import           PrelNames                    hiding (Unique, printName)
@@ -791,10 +782,8 @@ import           SrcLoc                       (RealLocated,
 #endif
 
 
-#if !MIN_VERSION_ghc(8,8,0)
 import           Data.List                    (isSuffixOf)
 import           System.FilePath
-#endif
 
 
 #if MIN_VERSION_ghc(9,2,0)
@@ -931,42 +920,19 @@ pattern L l a <- GHC.L (getLoc -> l) a
 {-# COMPLETE L #-}
 #endif
 
-#elif MIN_VERSION_ghc(8,8,0)
+#else
 type HasSrcSpan = SrcLoc.HasSrcSpan
 getLoc :: SrcLoc.HasSrcSpan a => a -> SrcLoc.SrcSpan
 getLoc = SrcLoc.getLoc
-
-#else
-
-class HasSrcSpan a where
-    getLoc :: a -> SrcSpan
-instance HasSrcSpan Name where
-    getLoc = nameSrcSpan
-instance HasSrcSpan (SrcLoc.GenLocated SrcSpan a) where
-    getLoc = SrcLoc.getLoc
-
 #endif
 
 getRealSrcSpan :: SrcLoc.RealLocated a -> SrcLoc.RealSrcSpan
-#if !MIN_VERSION_ghc(8,8,0)
-getRealSrcSpan = SrcLoc.getLoc
-#else
 getRealSrcSpan = SrcLoc.getRealSrcSpan
-#endif
-
 
 -- | Add the @-boot@ suffix to all output file paths associated with the
 -- module, not including the input file itself
 addBootSuffixLocnOut :: GHC.ModLocation -> GHC.ModLocation
-#if !MIN_VERSION_ghc(8,8,0)
-addBootSuffixLocnOut locn
-  = locn { Module.ml_hi_file  = Module.addBootSuffix (Module.ml_hi_file locn)
-         , Module.ml_obj_file = Module.addBootSuffix (Module.ml_obj_file locn)
-         }
-#else
 addBootSuffixLocnOut = Module.addBootSuffixLocnOut
-#endif
-
 
 dataConExTyCoVars :: DataCon -> [TyCoVar]
 #if __GLASGOW_HASKELL__ >= 808
@@ -1031,25 +997,15 @@ noExtField = GHC.noExt
 #endif
 
 ml_hie_file :: GHC.ModLocation -> FilePath
-#if !MIN_VERSION_ghc(8,8,0)
-ml_hie_file ml
-  | "boot" `isSuffixOf ` Module.ml_hi_file ml = Module.ml_hi_file ml -<.> ".hie-boot"
-  | otherwise  = Module.ml_hi_file ml -<.> ".hie"
-#else
 ml_hie_file = Module.ml_hie_file
-#endif
 
 #if !MIN_VERSION_ghc(9,0,0)
 pattern NotBoot, IsBoot :: IsBootInterface
 pattern NotBoot = False
 pattern IsBoot = True
 #endif
 
-#if MIN_VERSION_ghc(8,8,0)
 type PlainGhcException = Plain.PlainGhcException
-#else
-type PlainGhcException = Plain.GhcException
-#endif
 
 #if MIN_VERSION_ghc(9,0,0)
 -- This is from the old api, but it still simplifies

ghcide/src/Development/IDE/GHC/Compat/Plugins.hs

@@ -11,10 +11,8 @@ module Development.IDE.GHC.Compat.Plugins (
     initializePlugins,
 
     -- * Static plugins
-#if MIN_VERSION_ghc(8,8,0)
     StaticPlugin(..),
     hsc_static_plugins,
-#endif
     ) where
 
 #if MIN_VERSION_ghc(9,0,0)
@@ -31,13 +29,9 @@ import           GHC.Driver.Plugins                (ParsedResult (..),
                                                     staticPlugins)
 #endif
 import qualified GHC.Runtime.Loader                as Loader
-#elif MIN_VERSION_ghc(8,8,0)
-import qualified DynamicLoading                    as Loader
-import           Plugins
 #else
 import qualified DynamicLoading                    as Loader
-import           Plugins                           (Plugin (..), defaultPlugin,
-                                                    withPlugins)
+import           Plugins
 #endif
 import           Development.IDE.GHC.Compat.Core
 import           Development.IDE.GHC.Compat.Env    (hscSetFlags, hsc_dflags)
@@ -76,7 +70,6 @@ initializePlugins env = do
 #endif
 
 
-#if MIN_VERSION_ghc(8,8,0)
 hsc_static_plugins :: HscEnv -> [StaticPlugin]
 #if MIN_VERSION_ghc(9,3,0)
 hsc_static_plugins = staticPlugins . Env.hsc_plugins
@@ -85,4 +78,3 @@ hsc_static_plugins = Env.hsc_static_plugins
 #else
 hsc_static_plugins = staticPlugins . hsc_dflags
 #endif
-#endif

ghcide/src/Development/IDE/Spans/AtPoint.hs

@@ -280,11 +280,7 @@ typeLocationsAtPoint withHieDb lookupModule _ideOptions pos (HAR _ ast _ _ hieKi
             where ni = nodeInfo' x
           getTypes ts = flip concatMap (unfold ts) $ \case
             HTyVarTy n -> [n]
-#if MIN_VERSION_ghc(8,8,0)
             HAppTy a (HieArgs xs) -> getTypes (a : map snd xs)
-#else
-            HAppTy a b -> getTypes [a,b]
-#endif
             HTyConApp tc (HieArgs xs) -> ifaceTyConName tc : getTypes (map snd xs)
             HForAllTy _ a -> getTypes [a]
 #if MIN_VERSION_ghc(9,0,1)

ghcide/src/Development/IDE/Spans/Pragmas.hs

@@ -416,10 +416,7 @@ mkLexerPState dynFlags stringBuffer =
     startRealSrcLoc = mkRealSrcLoc "asdf" 1 1
     updateDynFlags = flip gopt_unset Opt_Haddock . flip gopt_set Opt_KeepRawTokenStream
     finalDynFlags = updateDynFlags dynFlags
-#if !MIN_VERSION_ghc(8,8,1)
-    pState = mkPState finalDynFlags stringBuffer startRealSrcLoc
-    finalPState = pState{ use_pos_prags = False }
-#elif !MIN_VERSION_ghc(8,10,1)
+#if !MIN_VERSION_ghc(8,10,1)
     mkLexerParserFlags =
       mkParserFlags'
       <$> warningFlags

plugins/hls-retrie-plugin/src/Ide/Plugin/Retrie.hs

@@ -306,11 +306,7 @@ suggestRuleRewrites originatingFile pos ms_mod (L _ HsRules {rds_rules}) =
           ]
         | L (locA -> l) r  <- rds_rules,
           pos `isInsideSrcSpan` l,
-#if MIN_VERSION_ghc(8,8,0)
           let HsRule {rd_name = L _ (_, rn)} = r,
-#else
-          let HsRule _ (L _ (_,rn)) _ _ _ _ = r,
-#endif
           let ruleName = unpackFS rn
       ]
   where