| // 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 value and detach arguments ... Both must be objects supported |
| /// as an [Expando] key. |
| /// |
| /// @description Checks that [value] must be supported as an [Expando] key. |
| /// Test Test dart:ffi union. |
| /// @author iarkh@unipro.ru |
| |
| import "dart:ffi"; |
| import "package:ffi/ffi.dart"; |
| import '../../../../Utils/expect.dart'; |
| |
| final Finalizer finalizer = Finalizer((_) { throw "Should not reach here"; }); |
| Object object = Object(); |
| |
| class U extends Union { |
| @Int32() |
| external int x; |
| @Int16() |
| external int y; |
| } |
| |
| main() { |
| Pointer<U> p = calloc<U>(); |
| U u = p.ref; |
| try { |
| Expect.throws(() { |
| finalizer.attach(object, "Finalization token", detach: u); |
| }); |
| } finally { |
| calloc.free(p); |
| } |
| } |