blob: 4a256a6630084a027c7fdcdb24166dc6d5c74f53 [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:
/// T?? == T?
/// @description Checks that T?? == T?
/// @author
// Requirements=nnbd-strong
class T {}
class A<X> {}
class B<X> implements A<X?> {}
class C extends B<T?> implements A<T?> {}
main() {
new C();