T track()

in lib/src/timing.dart [308:325]

• 17 lines of code
• 3 McCabe index (conditional complexity)

  T track<T>(T Function() action) {
    if (isStarted) {
      throw StateError('Can not be tracked twice');
    }
    _tracking = true;
    final result = runZoned(action,
        zoneSpecification: asyncTimeTrackerZoneSpecification,
        zoneValues: {_zoneKey: this});
    if (result is Future) {
      return result
          // Break possible sync processing of future completion, so slice trackers can be finished
          .whenComplete(() => Future.value())
          .whenComplete(() => _tracking = false) as T;
    } else {
      _tracking = false;
      return result;
    }
  }