diff options
Diffstat (limited to 'compiler/typecheck/TcRnTypes.hs')
| -rw-r--r-- | compiler/typecheck/TcRnTypes.hs | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/compiler/typecheck/TcRnTypes.hs b/compiler/typecheck/TcRnTypes.hs index 8957014036..573051d657 100644 --- a/compiler/typecheck/TcRnTypes.hs +++ b/compiler/typecheck/TcRnTypes.hs @@ -16,7 +16,7 @@ For state that is global and should be returned at the end (e.g not part of the stack mechanism), you should use a TcRef (= IORef) to store them. -} -{-# LANGUAGE CPP, ExistentialQuantification, GeneralizedNewtypeDeriving, +{-# LANGUAGE CPP, DeriveFunctor, ExistentialQuantification, GeneralizedNewtypeDeriving, ViewPatterns #-} module TcRnTypes( @@ -195,7 +195,7 @@ import Util import PrelNames ( isUnboundName ) import CostCentreState -import Control.Monad (ap, liftM, msum) +import Control.Monad (ap, msum) import qualified Control.Monad.Fail as MonadFail import Data.Set ( Set ) import qualified Data.Set as S @@ -3823,10 +3823,7 @@ type TcPluginSolver = [Ct] -- given -> [Ct] -- wanted -> TcPluginM TcPluginResult -newtype TcPluginM a = TcPluginM (EvBindsVar -> TcM a) - -instance Functor TcPluginM where - fmap = liftM +newtype TcPluginM a = TcPluginM (EvBindsVar -> TcM a) deriving (Functor) instance Applicative TcPluginM where pure x = TcPluginM (const $ pure x) |