blob: 867d738d2dd054aaf53afc30bb3fce465c19b351 [file] [log] [blame]
// 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.
abstract class F<T> {
T foo(T t);
class B<T extends F<T>> {}
class C<T extends F<C<T>>> {}
class D extends B<D> implements F<D> {
D foo(D x) => x;
class E extends C<E> implements F<C<E>> {
C<E> foo(C<E> x) => x;
main() {
D fd = D();
var d =;
E fe = E();
var e =;