| // Copyright (c) 2015, 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. |
| |
| // @dart = 2.9 |
| |
| // Check that Isolate.spawn is generic. |
| library spawn_generic; |
| |
| import "dart:isolate"; |
| import "dart:async"; |
| |
| import "package:async_helper/async_helper.dart"; |
| |
| void isomain(num args) { |
| print(args); |
| // All is well. No throwing. |
| } |
| |
| int _count = 0; |
| void enter() { |
| asyncStart(); |
| _count++; |
| } |
| |
| bool exit() { |
| asyncEnd(); |
| return --_count == 0; |
| } |
| |
| main() { |
| var remotePort = new RawReceivePort(); |
| remotePort.handler = (m) { |
| if (m == null) { |
| if (exit()) remotePort.close(); |
| } else { |
| List list = m; |
| throw new AsyncError(m[0], new StackTrace.fromString(m[1])); |
| } |
| }; |
| var port = remotePort.sendPort; |
| |
| // Explicit type works. |
| enter(); |
| Isolate.spawn<int>(isomain, 42, onExit: port, onError: port); |
| enter(); |
| Isolate.spawn<num>(isomain, 42, onExit: port, onError: port); |
| enter(); |
| Isolate.spawn<num>(isomain, 1.2, onExit: port, onError: port); |
| enter(); |
| Isolate.spawn<double>(isomain, 1.2, onExit: port, onError: port); |
| enter(); |
| Isolate.spawn<int>(isomain, null, onExit: port, onError: port); |
| |
| // Inference gets it right. |
| enter(); |
| Isolate.spawn(isomain, 42, onExit: port, onError: port); |
| enter(); |
| Isolate.spawn(isomain, 1.2, onExit: port, onError: port); |
| enter(); |
| Isolate.spawn(isomain, null, onExit: port, onError: port); |
| } |