Lasse Reichstein Holst Nielsen
757d806b36
This is a strong mode migration that was missed in the earlier rounds. It allows use of functions that have a more restricted argument type than Object in strong mode while still ensuring that the argument has a correct type. Change-Id: Ib00e3f4b4a679c003a992d674c36ef672729b22e Reviewed-on: https://dart-review.googlesource.com/24540 Commit-Queue: Lasse R.H. Nielsen <lrn@google.com> Reviewed-by: Leaf Petersen <leafp@google.com>
61 lines
1.5 KiB
Dart
61 lines
1.5 KiB
Dart
// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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// Check that Isolate.spawn is generic.
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library spawn_generic;
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import "dart:isolate";
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import "dart:async";
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import "package:async_helper/async_helper.dart";
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import "package:expect/expect.dart";
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void isomain(num args) {
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print(args);
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// All is well. No throwing.
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}
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int _count = 0;
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void enter() {
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asyncStart();
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_count++;
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}
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bool exit() {
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asyncEnd();
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return --_count == 0;
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}
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main() {
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var remotePort = new RawReceivePort();
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remotePort.handler = (m) {
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if (m == null) {
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if (exit()) remotePort.close();
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} else {
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List list = m;
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throw new AsyncError(m[0], new StackTrace.fromString(m[1]));
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}
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};
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var port = remotePort.sendPort;
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// Explicit type works.
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enter();
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Isolate.spawn<int>(isomain, 42, onExit: port, onError: port);
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enter();
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Isolate.spawn<num>(isomain, 42, onExit: port, onError: port);
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enter();
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Isolate.spawn<num>(isomain, 1.2, onExit: port, onError: port);
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enter();
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Isolate.spawn<double>(isomain, 1.2, onExit: port, onError: port);
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enter();
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Isolate.spawn<int>(isomain, null, onExit: port, onError: port);
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// Inference gets it right.
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enter();
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Isolate.spawn(isomain, 42, onExit: port, onError: port);
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enter();
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Isolate.spawn(isomain, 1.2, onExit: port, onError: port);
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enter();
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Isolate.spawn(isomain, null, onExit: port, onError: port);
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}
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