anchor.diff:  
     Future<bool> _tableIsCreated() {
       Completer completer = new Completer();
  -    _pool.query("select * from ${_$calTable}").then((result) {
  +    _pool.query("select * from ${_calTable}").then((result) {
         return completer.complete(true);
       }).catchError((e) {
         return completer.complete(false);
  
positive.code:   var _ap = null;
  
    // Setup
    final int _$NUMHours = 9;
    final List<int> _$startHour = [0, 8, 15];
  
    final _random = new Random();
    int _next(int min, int max) => min + _random.nextInt(max - min);
  
    var _pool;
    final String _$calTable = "lwc";
    bool _dataLoaded = false;
  
    final String _bdp = "/include/bogusData";
    List<String> _$lines;
    int _$cnt;
  
    // Construction
    mdCalendar(var ap) {
  
negative.code:     return completer.future;
    }
  
    _calCreateBogusEntry(int year, int month, int day, int h) async {
      Completer completer = new Completer();
  
      if (!_dataLoaded) {
  