blob: 0b37a92a655003f19b3f95081a9d2e2ce2376664 [file] [log] [blame]
* Copyright (c) 2019, 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 An interface has a set of direct superinterfaces.
* An interface J is a superinterface of an interface I iff either J is a
* direct superinterface of I or J is a superinterface of a direct
* superinterface of I.
* @description Checks that it is a compile-time error if the chain of
* superinterfaces forms a circular dependency. Test type aliases
* @compile-error
* @author
// SharedOptions=--enable-experiment=nonfunction-type-aliases
abstract class C implements A {}
abstract class B implements C {}
typedef BAlias = B;
abstract class A implements BAlias {}
class D implements A {}
main() {
new D();