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Diffstat (limited to 'compiler/GHC/Hs/Extension.hs')
| -rw-r--r-- | compiler/GHC/Hs/Extension.hs | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/compiler/GHC/Hs/Extension.hs b/compiler/GHC/Hs/Extension.hs index 922288650f..8e73f60b85 100644 --- a/compiler/GHC/Hs/Extension.hs +++ b/compiler/GHC/Hs/Extension.hs @@ -11,6 +11,7 @@ {-# LANGUAGE ScopedTypeVariables #-} {-# LANGUAGE TypeApplications #-} {-# LANGUAGE TypeFamilyDependencies #-} +{-# LANGUAGE StandaloneDeriving #-} {-# LANGUAGE UndecidableSuperClasses #-} -- for IsPass; see Note [NoGhcTc] {-# LANGUAGE UndecidableInstances #-} -- Wrinkle in Note [Trees That Grow] -- in module Language.Haskell.Syntax.Extension @@ -27,6 +28,7 @@ import GHC.Prelude import GHC.TypeLits (KnownSymbol, symbolVal) import Data.Data hiding ( Fixity ) +import Language.Haskell.Syntax.Concrete import Language.Haskell.Syntax.Extension import GHC.Types.Name import GHC.Types.Name.Reader @@ -258,3 +260,5 @@ instance KnownSymbol tok => Outputable (HsToken tok) where instance (KnownSymbol tok, KnownSymbol utok) => Outputable (HsUniToken tok utok) where ppr HsNormalTok = text (symbolVal (Proxy :: Proxy tok)) ppr HsUnicodeTok = text (symbolVal (Proxy :: Proxy utok)) + +deriving instance Typeable p => Data (LayoutInfo (GhcPass p)) |