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+synopsis: Rename plugin for Haskell Language Server +description: + Please see the README on GitHub at + +license: Apache-2.0 +license-file: LICENSE +author: Oliver Madine +maintainer: madine.oliver@gmail.com +category: Development +build-type: Simple +extra-source-files: + LICENSE + test/testdata/*.hs + test/testdata/*.yaml + +library + exposed-modules: Ide.Plugin.Rename + hs-source-dirs: src + build-depends: + , base >=4.12 && <5 + , containers + , extra + , ghc + , ghc-exactprint + , ghcide >=1.4 && <1.5 + , hiedb + , hls-plugin-api ^>=1.2 + , hls-retrie-plugin >=1.0.1.1 + , lsp + , lsp-types + , syb + , text + , transformers + + default-language: Haskell2010 + +test-suite tests + type: exitcode-stdio-1.0 + default-language: Haskell2010 + hs-source-dirs: test + main-is: Main.hs + ghc-options: -threaded -rtsopts -with-rtsopts=-N + build-depends: + , base + , filepath + , hls-rename-plugin + , hls-test-utils >=1.0 && <1.2 diff --git a/src/Ide/Plugin/Rename.hs b/src/Ide/Plugin/Rename.hs new file mode 100644 --- /dev/null +++ b/src/Ide/Plugin/Rename.hs @@ -0,0 +1,160 @@ +{-# LANGUAGE CPP #-} +{-# LANGUAGE DataKinds #-} +{-# LANGUAGE GADTs #-} +{-# LANGUAGE NamedFieldPuns #-} + +module Ide.Plugin.Rename (descriptor) where + +import Control.Monad +import Control.Monad.IO.Class (MonadIO (liftIO)) +import Control.Monad.Trans.Class +import Control.Monad.Trans.Except +import Data.Containers.ListUtils +import Data.Generics +import Data.List.Extra hiding (nubOrd) +import qualified Data.Map as M +import Data.Maybe +import qualified Data.Text as T +import Development.IDE hiding (pluginHandlers) +import Development.IDE.Core.PositionMapping +import Development.IDE.Core.Shake +import Development.IDE.GHC.Compat +import Development.IDE.Spans.AtPoint +#if MIN_VERSION_ghc(9,0,1) +import GHC.Types.Name +#else +import Name +#endif +import HieDb.Query +import Ide.Plugin.Config +import Ide.Plugin.Retrie hiding (descriptor) +import Ide.PluginUtils +import Ide.Types +import Language.Haskell.GHC.ExactPrint +import Language.LSP.Server +import Language.LSP.Types + +descriptor :: PluginId -> PluginDescriptor IdeState +descriptor pluginId = (defaultPluginDescriptor pluginId) { + pluginHandlers = mkPluginHandler STextDocumentRename renameProvider +} + +renameProvider :: PluginMethodHandler IdeState TextDocumentRename +renameProvider state pluginId (RenameParams (TextDocumentIdentifier uri) pos _prog newNameText) = + response $ do + nfp <- safeUriToNfp uri + oldName <- getNameAtPos state nfp pos + workspaceRefs <- refsAtName state nfp oldName + let filesRefs = groupOn locToUri workspaceRefs + getFileEdits = ap (getSrcEdits state . renameModRefs newNameText) (locToUri . head) + + fileEdits <- mapM getFileEdits filesRefs + pure $ foldl1 (<>) fileEdits + +------------------------------------------------------------------------------- +-- Source renaming + +-- | Compute a `WorkspaceEdit` by applying a given function to the `ParsedModule` for a given `Uri`. +getSrcEdits :: + (MonadLsp config m) => + IdeState -> +#if MIN_VERSION_ghc(9,0,1) + (HsModule -> HsModule) -> +#else + (HsModule GhcPs -> HsModule GhcPs) -> +#endif + Uri -> + ExceptT String m WorkspaceEdit +getSrcEdits state updateMod uri = do + ccs <- lift getClientCapabilities + nfp <- safeUriToNfp uri + ParsedModule{pm_parsed_source = ps, pm_annotations = apiAnns} <- + handleMaybeM "Error: could not get parsed source" $ liftIO $ runAction + "Rename.GetParsedModuleWithComments" + state + (use GetParsedModuleWithComments nfp) + + let anns = relativiseApiAnns ps apiAnns + src = T.pack $ exactPrint ps anns + res = T.pack $ exactPrint (updateMod <$> ps) anns + + pure $ diffText ccs (uri, src) res IncludeDeletions + +-- | Replace a name at every given `Location` (in a given `HsModule`) with a given new name. +renameModRefs :: + T.Text -> + [Location] -> +#if MIN_VERSION_ghc(9,0,1) + HsModule + -> HsModule +#else + HsModule GhcPs + -> HsModule GhcPs +#endif +renameModRefs newNameText refs = everywhere $ mkT replace + where + replace :: Located RdrName -> Located RdrName + replace (L srcSpan oldRdrName) + | isRef srcSpan = L srcSpan $ newRdrName oldRdrName + replace lOldRdrName = lOldRdrName + + newRdrName :: RdrName -> RdrName + newRdrName oldRdrName = case oldRdrName of + Qual modName _ -> Qual modName newOccName + _ -> Unqual newOccName + + newOccName = mkTcOcc $ T.unpack newNameText + + isRef :: SrcSpan -> Bool + isRef = (`elem` refs) . fromJust . srcSpanToLocation + +------------------------------------------------------------------------------- +-- Reference finding + +-- | Note: We only find exact name occurences (i.e. type reference "depth" is 0). +refsAtName :: IdeState -> NormalizedFilePath -> Name -> ExceptT [Char] (LspT Config IO) [Location] +refsAtName state nfp name = do + ShakeExtras{hiedb} <- liftIO $ runAction "Rename.HieDb" state getShakeExtras + ast <- safeGetHieAst state nfp + astRefs <- handleMaybe "Error: Could not get name AST references" $ getNameAstLocations name ast + dbRefs <- case nameModule_maybe name of + Nothing -> pure [] + Just mod -> liftIO $ mapMaybe rowToLoc <$> + findReferences + hiedb + True + (nameOccName name) + (Just $ moduleName mod) + (Just $ moduleUnitId mod) + [fromNormalizedFilePath nfp] + pure $ nubOrd $ astRefs ++ dbRefs + +getNameAstLocations :: Name -> (HieAstResult, PositionMapping) -> Maybe [Location] +getNameAstLocations name (HAR _ _ rm _ _, mapping) = + mapMaybe (toCurrentLocation mapping . realSrcSpanToLocation . fst) <$> M.lookup (Right name) rm + +------------------------------------------------------------------------------- +-- Util + +getNameAtPos :: IdeState -> NormalizedFilePath -> Position -> ExceptT String (LspT Config IO) Name +getNameAtPos state nfp pos = do + (HAR{hieAst}, mapping) <- safeGetHieAst state nfp + handleMaybe "Error: could not find name at position" $ listToMaybe $ + getAstNamesAtPoint hieAst pos mapping + +nfpToUri :: NormalizedFilePath -> Uri +nfpToUri = filePathToUri . fromNormalizedFilePath + +safeUriToNfp :: (Monad m) => Uri -> ExceptT String m NormalizedFilePath +safeUriToNfp = handleMaybe "Error: Could not get uri" . fmap toNormalizedFilePath . uriToFilePath + +safeGetHieAst :: + MonadIO m => + IdeState -> + NormalizedFilePath -> + ExceptT String m (HieAstResult, PositionMapping) +safeGetHieAst state = handleMaybeM "Error: Could not get AST" . liftIO . + runAction "Rename.GetHieAst" state . useWithStale GetHieAst + +locToUri :: Location -> Uri +locToUri (Location uri _) = uri diff --git a/test/Main.hs b/test/Main.hs new file mode 100644 --- /dev/null +++ b/test/Main.hs @@ -0,0 +1,60 @@ +{-# LANGUAGE OverloadedStrings #-} + +module Main (main) where + +import qualified Ide.Plugin.Rename as Rename +import System.FilePath +import Test.Hls + +main :: IO () +main = defaultTestRunner tests + +renamePlugin :: PluginDescriptor IdeState +renamePlugin = Rename.descriptor "rename" + +tests :: TestTree +tests = testGroup "Rename" + [ goldenWithRename "Data constructor" "DataConstructor" $ \doc -> do + rename doc (Position 0 15) "Op" + , goldenWithRename "Exported function" "ExportedFunction" $ \doc -> do + rename doc (Position 2 1) "quux" + , goldenWithRename "Function argument" "FunctionArgument" $ \doc -> do + rename doc (Position 3 4) "y" + , goldenWithRename "Function name" "FunctionName" $ \doc -> do + rename doc (Position 3 1) "baz" + , goldenWithRename "GADT" "Gadt" $ \doc -> do + rename doc (Position 6 37) "Expr" + , goldenWithRename "Hidden function" "HiddenFunction" $ \doc -> do + rename doc (Position 0 32) "quux" + , goldenWithRename "Imported function" "ImportedFunction" $ \doc -> do + rename doc (Position 3 8) "baz" + , goldenWithRename "Import hiding" "ImportHiding" $ \doc -> do + rename doc (Position 0 22) "hiddenFoo" + , goldenWithRename "Let expression" "LetExpression" $ \doc -> do + rename doc (Position 5 11) "foobar" + , goldenWithRename "Qualified as" "QualifiedAs" $ \doc -> do + rename doc (Position 3 10) "baz" + , goldenWithRename "Qualified shadowing" "QualifiedShadowing" $ \doc -> do + rename doc (Position 3 12) "foobar" + , goldenWithRename "Qualified function" "QualifiedFunction" $ \doc -> do + rename doc (Position 3 12) "baz" + , goldenWithRename "Realigns do block indentation" "RealignDo" $ \doc -> do + rename doc (Position 0 2) "fooBarQuux" + , goldenWithRename "Record field" "RecordField" $ \doc -> do + rename doc (Position 6 9) "number" + , goldenWithRename "Shadowed name" "ShadowedName" $ \doc -> do + rename doc (Position 1 1) "baz" + , goldenWithRename "Typeclass" "Typeclass" $ \doc -> do + rename doc (Position 8 15) "Equal" + , goldenWithRename "Type constructor" "TypeConstructor" $ \doc -> do + rename doc (Position 2 17) "BinaryTree" + , goldenWithRename "Type variable" "TypeVariable" $ \doc -> do + rename doc (Position 0 13) "b" + ] + +goldenWithRename :: TestName -> FilePath -> (TextDocumentIdentifier -> Session ()) -> TestTree +goldenWithRename title path = + goldenWithHaskellDoc renamePlugin title testDataDir path "expected" "hs" + +testDataDir :: FilePath +testDataDir = "test" "testdata" diff --git a/test/testdata/DataConstructor.expected.hs b/test/testdata/DataConstructor.expected.hs new file mode 100644 --- /dev/null +++ b/test/testdata/DataConstructor.expected.hs @@ -0,0 +1,4 @@ +data Expr = Op Int Int + +plus :: Expr -> Expr +plus (Op n m) = Op (n + m) 0 diff --git a/test/testdata/DataConstructor.hs b/test/testdata/DataConstructor.hs new file mode 100644 --- /dev/null +++ b/test/testdata/DataConstructor.hs @@ -0,0 +1,4 @@ +data Expr = Apply Int Int + +plus :: Expr -> Expr +plus (Apply n m) = Apply (n + m) 0 diff --git a/test/testdata/ExportedFunction.expected.hs b/test/testdata/ExportedFunction.expected.hs new file mode 100644 --- /dev/null +++ b/test/testdata/ExportedFunction.expected.hs @@ -0,0 +1,5 @@ +module ExportedFunction (quux) where + +quux :: Num p => [a] -> p +quux [] = 0 +quux xs = 1 diff --git a/test/testdata/ExportedFunction.hs b/test/testdata/ExportedFunction.hs new file mode 100644 --- /dev/null +++ b/test/testdata/ExportedFunction.hs @@ -0,0 +1,5 @@ +module ExportedFunction (foo) where + +foo :: Num p => [a] -> p +foo [] = 0 +foo xs = 1 diff --git a/test/testdata/Foo.hs b/test/testdata/Foo.hs new file mode 100644 --- /dev/null +++ b/test/testdata/Foo.hs @@ -0,0 +1,4 @@ +module Foo where + +foo :: Int -> Int +foo x = 0 diff --git a/test/testdata/FunctionArgument.expected.hs b/test/testdata/FunctionArgument.expected.hs new file mode 100644 --- /dev/null +++ b/test/testdata/FunctionArgument.expected.hs @@ -0,0 +1,4 @@ +module FunctionArgument where + +foo :: Int -> Int +foo y = y + 1 diff --git a/test/testdata/FunctionArgument.hs b/test/testdata/FunctionArgument.hs new file mode 100644 --- /dev/null +++ b/test/testdata/FunctionArgument.hs @@ -0,0 +1,4 @@ +module FunctionArgument where + +foo :: Int -> Int +foo x = x + 1 diff --git a/test/testdata/FunctionName.expected.hs b/test/testdata/FunctionName.expected.hs new file mode 100644 --- /dev/null +++ b/test/testdata/FunctionName.expected.hs @@ -0,0 +1,6 @@ +main = do + x <- return $ baz 42 + return (baz x) +baz, bar :: Int -> Int +baz x = x + 1 +bar = (+ 1) . baz diff --git a/test/testdata/FunctionName.hs b/test/testdata/FunctionName.hs new file mode 100644 --- /dev/null +++ b/test/testdata/FunctionName.hs @@ -0,0 +1,6 @@ +main = do + x <- return $ foo 42 + return (foo x) +foo, bar :: Int -> Int +foo x = x + 1 +bar = (+ 1) . foo diff --git a/test/testdata/Gadt.expected.hs b/test/testdata/Gadt.expected.hs new file mode 100644 --- /dev/null +++ b/test/testdata/Gadt.expected.hs @@ -0,0 +1,17 @@ +{-# LANGUAGE GADTs #-} + +data Expr a where + Number :: Int -> Expr Int + Boolean :: Bool -> Expr Bool + Not :: Expr Bool -> Expr Bool + Even :: Expr Int -> Expr Bool + Add :: Enum a => Expr a -> Expr a -> Expr Int + Max :: Ord a => Expr a -> Expr a -> Expr a + +evaluate :: Expr a -> a +evaluate (Number n) = n +evaluate (Boolean p) = p +evaluate (Add n m) = fromEnum (evaluate n) + fromEnum (evaluate m) +evaluate (Even n) = even $ evaluate n +evaluate (Not p) = not $ evaluate p +evaluate (Max x y) = max (evaluate x) (evaluate y) diff --git a/test/testdata/Gadt.hs b/test/testdata/Gadt.hs new file mode 100644 --- /dev/null +++ b/test/testdata/Gadt.hs @@ -0,0 +1,17 @@ +{-# LANGUAGE GADTs #-} + +data Expression a where + Number :: Int -> Expression Int + Boolean :: Bool -> Expression Bool + Not :: Expression Bool -> Expression Bool + Even :: Expression Int -> Expression Bool + Add :: Enum a => Expression a -> Expression a -> Expression Int + Max :: Ord a => Expression a -> Expression a -> Expression a + +evaluate :: Expression a -> a +evaluate (Number n) = n +evaluate (Boolean p) = p +evaluate (Add n m) = fromEnum (evaluate n) + fromEnum (evaluate m) +evaluate (Even n) = even $ evaluate n +evaluate (Not p) = not $ evaluate p +evaluate (Max x y) = max (evaluate x) (evaluate y) diff --git a/test/testdata/HiddenFunction.expected.hs b/test/testdata/HiddenFunction.expected.hs new file mode 100644 --- /dev/null +++ b/test/testdata/HiddenFunction.expected.hs @@ -0,0 +1,4 @@ +import Foo hiding (quux) + +foo :: Int -> Int +foo x = 0 diff --git a/test/testdata/HiddenFunction.hs b/test/testdata/HiddenFunction.hs new file mode 100644 --- /dev/null +++ b/test/testdata/HiddenFunction.hs @@ -0,0 +1,4 @@ +import Foo hiding (foo) + +foo :: Int -> Int +foo x = 0 diff --git a/test/testdata/ImportHiding.expected.hs b/test/testdata/ImportHiding.expected.hs new file mode 100644 --- /dev/null +++ b/test/testdata/ImportHiding.expected.hs @@ -0,0 +1,4 @@ +import Foo hiding (hiddenFoo) + +foo :: Int -> Int +foo _ = 5 diff --git a/test/testdata/ImportHiding.hs b/test/testdata/ImportHiding.hs new file mode 100644 --- /dev/null +++ b/test/testdata/ImportHiding.hs @@ -0,0 +1,4 @@ +import Foo hiding (foo) + +foo :: Int -> Int +foo _ = 5 diff --git a/test/testdata/ImportedFunction.expected.hs b/test/testdata/ImportedFunction.expected.hs new file mode 100644 --- /dev/null +++ b/test/testdata/ImportedFunction.expected.hs @@ -0,0 +1,4 @@ +import Foo (baz) + +bar :: Int -> Int +bar = baz diff --git a/test/testdata/ImportedFunction.hs b/test/testdata/ImportedFunction.hs new file mode 100644 --- /dev/null +++ b/test/testdata/ImportedFunction.hs @@ -0,0 +1,4 @@ +import Foo (foo) + +bar :: Int -> Int +bar = foo diff --git a/test/testdata/LetExpression.expected.hs b/test/testdata/LetExpression.expected.hs new file mode 100644 --- /dev/null +++ b/test/testdata/LetExpression.expected.hs @@ -0,0 +1,10 @@ +module Let where + +import Foo + +bar :: Int +bar = let foobar = 5 in + foobar * foobar + +quux :: Int +quux = Foo.foo 4 diff --git a/test/testdata/LetExpression.hs b/test/testdata/LetExpression.hs new file mode 100644 --- /dev/null +++ b/test/testdata/LetExpression.hs @@ -0,0 +1,10 @@ +module Let where + +import Foo + +bar :: Int +bar = let foo = 5 in + foo * foo + +quux :: Int +quux = Foo.foo 4 diff --git a/test/testdata/QualifiedAs.expected.hs b/test/testdata/QualifiedAs.expected.hs new file mode 100644 --- /dev/null +++ b/test/testdata/QualifiedAs.expected.hs @@ -0,0 +1,4 @@ +import qualified Foo as F + +bar :: Int -> Int +bar = F.baz diff --git a/test/testdata/QualifiedAs.hs b/test/testdata/QualifiedAs.hs new file mode 100644 --- /dev/null +++ b/test/testdata/QualifiedAs.hs @@ -0,0 +1,4 @@ +import qualified Foo as F + +bar :: Int -> Int +bar = F.foo diff --git a/test/testdata/QualifiedFunction.expected.hs b/test/testdata/QualifiedFunction.expected.hs new file mode 100644 --- /dev/null +++ b/test/testdata/QualifiedFunction.expected.hs @@ -0,0 +1,4 @@ +import qualified Foo + +bar :: Int -> Int +bar = Foo.baz diff --git a/test/testdata/QualifiedFunction.hs b/test/testdata/QualifiedFunction.hs new file mode 100644 --- /dev/null +++ b/test/testdata/QualifiedFunction.hs @@ -0,0 +1,4 @@ +import qualified Foo + +bar :: Int -> Int +bar = Foo.foo diff --git a/test/testdata/QualifiedShadowing.expected.hs b/test/testdata/QualifiedShadowing.expected.hs new file mode 100644 --- /dev/null +++ b/test/testdata/QualifiedShadowing.expected.hs @@ -0,0 +1,7 @@ +import qualified Foo as F + +bar :: Int -> Int +bar x = F.foobar x + foo x + +foo :: Int -> Int +foo _ = 5 diff --git a/test/testdata/QualifiedShadowing.hs b/test/testdata/QualifiedShadowing.hs new file mode 100644 --- /dev/null +++ b/test/testdata/QualifiedShadowing.hs @@ -0,0 +1,7 @@ +import qualified Foo as F + +bar :: Int -> Int +bar x = F.foo x + foo x + +foo :: Int -> Int +foo _ = 5 diff --git a/test/testdata/RealignDo.expected.hs b/test/testdata/RealignDo.expected.hs new file mode 100644 --- /dev/null +++ b/test/testdata/RealignDo.expected.hs @@ -0,0 +1,4 @@ +fooBarQuux :: Maybe Integer +fooBarQuux = do x <- Just 5 + t <- Just 10 + pure $ x + t diff --git a/test/testdata/RealignDo.hs b/test/testdata/RealignDo.hs new file mode 100644 --- /dev/null +++ b/test/testdata/RealignDo.hs @@ -0,0 +1,4 @@ +foo :: Maybe Integer +foo = do x <- Just 5 + t <- Just 10 + pure $ x + t diff --git a/test/testdata/RecordField.expected.hs b/test/testdata/RecordField.expected.hs new file mode 100644 --- /dev/null +++ b/test/testdata/RecordField.expected.hs @@ -0,0 +1,7 @@ +data Bam = Bam { + number :: Int, + s :: String +} + +foo :: Bam -> Bam +foo Bam {number = y} = Bam {number = y + 5, s = ""} diff --git a/test/testdata/RecordField.hs b/test/testdata/RecordField.hs new file mode 100644 --- /dev/null +++ b/test/testdata/RecordField.hs @@ -0,0 +1,7 @@ +data Bam = Bam { + n :: Int, + s :: String +} + +foo :: Bam -> Bam +foo Bam {n = y} = Bam {n = y + 5, s = ""} diff --git a/test/testdata/ShadowedName.expected.hs b/test/testdata/ShadowedName.expected.hs new file mode 100644 --- /dev/null +++ b/test/testdata/ShadowedName.expected.hs @@ -0,0 +1,4 @@ +baz :: Int -> Int +baz x = foo + 10 + where + foo = 20 diff --git a/test/testdata/ShadowedName.hs b/test/testdata/ShadowedName.hs new file mode 100644 --- /dev/null +++ b/test/testdata/ShadowedName.hs @@ -0,0 +1,4 @@ +foo :: Int -> Int +foo x = foo + 10 + where + foo = 20 diff --git a/test/testdata/TypeConstructor.expected.hs b/test/testdata/TypeConstructor.expected.hs new file mode 100644 --- /dev/null +++ b/test/testdata/TypeConstructor.expected.hs @@ -0,0 +1,5 @@ +data BinaryTree a = Node a (BinaryTree a) (BinaryTree a) | Leaf a + +rotateRight :: BinaryTree a -> BinaryTree a +rotateRight (Node v (Node v' l' r') r) = Node v' l' (Node v r' r) +rotateRight t = t diff --git a/test/testdata/TypeConstructor.hs b/test/testdata/TypeConstructor.hs new file mode 100644 --- /dev/null +++ b/test/testdata/TypeConstructor.hs @@ -0,0 +1,5 @@ +data Tree a = Node a (Tree a) (Tree a) | Leaf a + +rotateRight :: Tree a -> Tree a +rotateRight (Node v (Node v' l' r') r) = Node v' l' (Node v r' r) +rotateRight t = t diff --git a/test/testdata/TypeVariable.expected.hs b/test/testdata/TypeVariable.expected.hs new file mode 100644 --- /dev/null +++ b/test/testdata/TypeVariable.expected.hs @@ -0,0 +1,2 @@ +bar :: Maybe b -> Maybe b +bar a = a diff --git a/test/testdata/TypeVariable.hs b/test/testdata/TypeVariable.hs new file mode 100644 --- /dev/null +++ b/test/testdata/TypeVariable.hs @@ -0,0 +1,2 @@ +bar :: Maybe a -> Maybe a +bar a = a diff --git a/test/testdata/Typeclass.expected.hs b/test/testdata/Typeclass.expected.hs new file mode 100644 --- /dev/null +++ b/test/testdata/Typeclass.expected.hs @@ -0,0 +1,10 @@ +module Typeclass where + +class Equal a where + equals :: a -> a -> Bool + +instance Equal Int where + equals = (==) + +allEqual :: Equal a => [a] -> Bool +allEqual = all =<< equals . head diff --git a/test/testdata/Typeclass.hs b/test/testdata/Typeclass.hs new file mode 100644 --- /dev/null +++ b/test/testdata/Typeclass.hs @@ -0,0 +1,10 @@ +module Typeclass where + +class Equality a where + equals :: a -> a -> Bool + +instance Equality Int where + equals = (==) + +allEqual :: Equality a => [a] -> Bool +allEqual = all =<< equals . head diff --git a/test/testdata/hie.yaml b/test/testdata/hie.yaml new file mode 100644 --- /dev/null +++ b/test/testdata/hie.yaml @@ -0,0 +1,22 @@ +cradle: + direct: + arguments: + - "DataConstructor" + - "ExportedFunction" + - "Foo" + - "FunctionArgument" + - "FunctionName" + - "Gadt" + - "HiddenFunction" + - "ImportHiding" + - "ImportedFunction" + - "LetExpression" + - "QualifiedAs" + - "QualifiedFunction" + - "QualifiedShadowing" + - "RealignDo" + - "RecordField" + - "ShadowedName" + - "TypeClass" + - "TypeConstructor" + - "TypeVariable"