blob: 22ff3efaafcca8698f9da455dd3e74f3e0ae25e2 [file] [log] [blame]
// Copyright (c) 2013, 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.
import 'package:expect/expect.dart';
import 'package:async_helper/async_helper.dart';
import 'dart:async';
main() {
Completer done = new Completer();
List events = [];
Expect.identical(Zone.root, Zone.current);
Zone forked;
forked = Zone.current.fork(specification: new ZoneSpecification(fork:
(Zone self, ZoneDelegate parent, Zone origin,
ZoneSpecification? zoneSpecification, Map<Object?, Object?>? mapValues) {
// The zone is still the same as when origin.run was invoked, which
// is the root zone. (The origin zone hasn't been set yet).
Expect.identical(Zone.root, Zone.current);
events.add("forked.fork");
var descriptionRun = zoneSpecification!.run!;
ZoneSpecification modified = new ZoneSpecification.from(zoneSpecification,
run: <R>(self, parent, origin, R f()) {
events.add("wrapped run");
return descriptionRun(self, parent, origin, () {
events.add("wrapped f");
return f();
});
});
return parent.fork(origin, modified, mapValues);
}));
events.add("start");
Zone forkedChild = forked.fork(specification: new ZoneSpecification(
run: <R>(Zone self, ZoneDelegate parent, Zone origin, R f()) {
events.add("executing child run");
return parent.run(origin, f);
}));
events.add("after child fork");
Expect.identical(Zone.root, Zone.current);
forkedChild.run(() {
events.add("child run");
});
events.add("after child run");
Expect.listEquals([
"start",
"forked.fork",
"after child fork",
"wrapped run",
"executing child run",
"wrapped f",
"child run",
"after child run"
], events);
}