summaryrefslogtreecommitdiff
path: root/testsuite/tests/gadt/T14320.hs
blob: 77c68ee92eb63adbf7ea9895c4cbc4a42f2c7ac4 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
{-# LANGUAGE RankNTypes, GADTs, KindSignatures #-}
module T14320
where

import Data.Kind (Type)

data Exp :: Type where
  Lit  :: (Int -> Exp)

newtype TypedExp :: Type -> Type where
  TEGood ::  forall a . (Exp -> (TypedExp a))

-- The only difference here is that the type is wrapped in parentheses,
-- but GHC 8.0.1 rejects this program
--
newtype TypedExpToo :: Type -> Type where
  TEBad  :: (forall a . (Exp -> (TypedExpToo a)))