Commit c59064b0 authored by Brandon Chinn's avatar Brandon Chinn Committed by Marge Bot

Add regression test for #16341

parent b9a880fc
{-# LANGUAGE DeriveFunctor #-}
{-# LANGUAGE DeriveFoldable #-}
{-# LANGUAGE DeriveLift #-}
{-# LANGUAGE DeriveTraversable #-}
{-# LANGUAGE FlexibleInstances #-}
{-# LANGUAGE StandaloneDeriving #-}
module T16341 where
import Language.Haskell.TH.Syntax (Lift)
data Foo a where
Foo1 :: Foo Int
Foo2 :: (Bool -> Bool) -> Foo Bool
-- These instances should work whether or not `Foo2` is a constructor in
-- `Foo`, because the `Foo Int` designation precludes `Foo2` from being
-- a reachable constructor
deriving instance Show (Foo Int)
deriving instance Eq (Foo Int)
deriving instance Ord (Foo Int)
deriving instance Lift (Foo Int)
data Bar a b where
Bar1 :: b -> Bar Int b
Bar2 :: (Bool -> Bool) -> b -> Bar Bool b
deriving instance Functor (Bar Int)
deriving instance Foldable (Bar Int)
deriving instance Traversable (Bar Int)
......@@ -118,6 +118,7 @@ test('T15398', normal, compile, [''])
test('T15637', normal, compile, [''])
test('T15831', normal, compile, [''])
test('T16179', normal, compile, [''])
test('T16341', normal, compile, [''])
test('T16518', normal, compile, [''])
test('T17324', normal, compile, [''])
test('T17339', normal, compile,
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