blob: 959f6137f0e84272156599316a92c89389666118 [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:
* X extend Never == Never
*
* @description Checks that X extend Never == Never
*
* @author sgrekhov@unipro.ru
*/
// Requirements=nnbd-strong
class A<X> {}
class B<X extends Never> implements A<X> {}
class C extends B<Never> implements A<Never> {}
main() {
new C();
}