| // 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 Finalizer<T> constructor (Null safety) |
| /// Finalizer<T>(void callback(T)) |
| /// Creates a finalizer with the given finalization callback. |
| /// |
| /// The callback is bound to the current zone when the [Finalizer] is created, |
| /// and will run in that zone when called. |
| /// |
| /// @description Checks that finalizer object can be created and its callback |
| /// will run when attached object becomes inaccessible. |
| /// @author iarkh@unipro.ru |
| |
| import '../../gc_utils_lib.dart'; |
| import '../../../../Utils/expect.dart'; |
| |
| int called = 0; |
| |
| final Finalizer finalizer = Finalizer((token) { |
| Expect.equals("abc", token); |
| called++; |
| }); |
| |
| main() async { |
| finalizer.attach(Object(), "abc"); |
| await triggerGcWithDelay(); // Call FullGC |
| Expect.equals(1, called); // Callback function should be called only once |
| } |
