// Copyright (c) 2017, 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. | |
// @dart = 2.7 | |
class A {} | |
class I<T> {} | |
// C needs to include "N", otherwise checking for `is I<A>` will likely cause | |
// problems | |
class C extends A implements I<N> {} | |
class N extends A {} | |
doCheck(x) => x is I<A>; |