mirror of
https://github.com/dart-lang/sdk
synced 2024-09-19 15:01:29 +00:00
67539c2faf
Change-Id: I318742cd4303d70c0625c9efd98bb01087aa5de4 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/150466 Commit-Queue: Bob Nystrom <rnystrom@google.com> Reviewed-by: Erik Ernst <eernst@google.com>
29 lines
553 B
Dart
29 lines
553 B
Dart
// 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 = fd.foo(fd);
|
|
print(d);
|
|
E fe = E();
|
|
var e = fe.foo(fe);
|
|
print(e);
|
|
}
|