| // Copyright (c) 2022, 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 finalizer can be attached multiple times to the same object |
| /// with different, or the same, finalization token. |
| /// |
| /// @description Checks that finalizer can be attached to the same object with |
| /// the different finalization tokens. |
| /// @author iarkh@unipro.ru |
| |
| import '../../gc_utils_lib.dart'; |
| import '../../../../Utils/expect.dart'; |
| |
| class Nonce { |
| final int value; |
| Nonce(this.value); |
| } |
| |
| final finalizerTokens = <String>{}; |
| int count = 0; |
| |
| final Finalizer finalizer = Finalizer((token) { |
| if (count >= 0) { |
| if (finalizerTokens.contains(token)) { |
| count = -1; |
| } else { |
| finalizerTokens.add(token); |
| count++; |
| } |
| } |
| }); |
| |
| @pragma('vm:never-inline') |
| void attachToFinalizer(Nonce token) { |
| Object value = Object(); |
| finalizer.attach(value, "Finalization token 1", detach: token); |
| finalizer.attach(value, "Finalization token 2", detach: token); |
| finalizer.attach(value, "Finalization token 3", detach: token); |
| } |
| |
| main() async { |
| Nonce token = Nonce(1); |
| attachToFinalizer(token); |
| |
| await triggerGcWithDelay(); |
| Expect.setEquals( |
| {"Finalization token 1", "Finalization token 2", "Finalization token 3"}, |
| finalizerTokens); |
| Expect.equals(3, count); |
| } |