// Copyright (c) 2019, 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:flutter/material.dart';

Future<void> asyncFunction() async {
  print('a');
  await Future.value();
  print('b');
}

Stream<void> asyncGenerator() async* {
  print('c');
}

void main() {
  runApp(Container());
  
  asyncFunction();
  asyncGenerator().listen((_) {});
  WidgetsBinding.instance.addPostFrameCallback((_) => print('d'));
  Future(() => print('e'));
  Future(() {}).then((_) => print('f'));
  Future.sync(() => print('g'));
  Future.sync(() {}).then((_) => print('h'));
  Future.value().then((_) => print('i'));
  Future.microtask(() => print('j'));
  Future.microtask(() {}).then((_) => print('k'));
  WidgetsBinding.instance.addPostFrameCallback((_) => print('l'));
  print('m');
}