modified property

Implementation

@override
DateTime get modified {
  if (_impl == null) {
    return _defaultDateTime;
  }

  if (_impl is MemoryFileImplementation) {
    return (_impl as MemoryFileImplementation).lastModified;
  }

  if (_impl is MapBasedFsDirectoryImplementation) {
    // TODO(ehesp): This probably isn't correct.
    return DateTime.now();
  }

  throw UnimplementedError();
}