blob: 464334ba745bc6790801c1d5029577631e9f3e33 [file] [log] [blame]
// Copyright (c) 2020, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
/// @assertion The NORM relation defines the canonical representative of classes
/// of equivalent types...
/// This is based on the following equations:
/// FutureOr<T> == Future<T> if T <: Future<T>
/// @description Checks that if T is not subtype of Future<T> then
/// FutureOr<T> != Future<T>
/// @author
import 'dart:async';
class A<X> {}
class B<X> implements A<X> {}
class C extends B<FutureOr<Null>> implements A<Future<Null>> {}
// ^
// [analyzer] unspecified
// [cfe] unspecified
main() {
new C();