diff options
Diffstat (limited to 'testsuite')
-rw-r--r-- | testsuite/tests/deriving/should_compile/T23329.hs | 9 | ||||
-rw-r--r-- | testsuite/tests/deriving/should_compile/T23329_M.hs | 17 | ||||
-rw-r--r-- | testsuite/tests/deriving/should_compile/all.T | 1 |
3 files changed, 27 insertions, 0 deletions
diff --git a/testsuite/tests/deriving/should_compile/T23329.hs b/testsuite/tests/deriving/should_compile/T23329.hs new file mode 100644 index 0000000000..7b4cd922f8 --- /dev/null +++ b/testsuite/tests/deriving/should_compile/T23329.hs @@ -0,0 +1,9 @@ +module T23329 where + +import Data.Kind (Type) +import Data.Proxy (Proxy(Proxy)) + +import T23329_M + +foo :: () +foo = myMethod @Type @MyMaybe @() () Proxy Proxy diff --git a/testsuite/tests/deriving/should_compile/T23329_M.hs b/testsuite/tests/deriving/should_compile/T23329_M.hs new file mode 100644 index 0000000000..a451a2b828 --- /dev/null +++ b/testsuite/tests/deriving/should_compile/T23329_M.hs @@ -0,0 +1,17 @@ +{-# LANGUAGE TypeFamilies #-} +{-# LANGUAGE UndecidableInstances #-} +module T23329_M where + +import Data.Kind (Type) +import Data.Proxy (Proxy) + +class MyClass (f :: k -> Type) where + type MyTypeFamily f (i :: k) :: Type + myMethod :: MyTypeFamily f i -> Proxy f -> Proxy i -> () + +instance MyClass Maybe where + type MyTypeFamily Maybe i = () + myMethod = undefined + +newtype MyMaybe a = MyMaybe (Maybe a) + deriving MyClass diff --git a/testsuite/tests/deriving/should_compile/all.T b/testsuite/tests/deriving/should_compile/all.T index dd1fe9cd3d..729371b658 100644 --- a/testsuite/tests/deriving/should_compile/all.T +++ b/testsuite/tests/deriving/should_compile/all.T @@ -141,3 +141,4 @@ test('T20994', normal, compile, ['']) test('T22167', normal, compile, ['']) test('T22696a', normal, compile, ['']) test('T22696c', normal, compile, ['']) +test('T23329', normal, multimod_compile, ['T23329', '-v0']) |