Diaga

void main() {
  final w = ConsumerWidget();
  print(w.controller);
}

class ConsumerWidget {
  TableController get controller {
    try {
    print(controller.check);
      } finally {

Diaga

void main() {
}

// Do not have to define separate depController fields

class TableWidget extends ConsumerWidget {
  TableWidget(String arg) : super(depMap: {
    'textController': Dep(() {return TextController(arg); }),
    'scrollController': Dep(() {return ScrollController(); }),
    'tableController': Dep(() {return TableController(); })

Diaga

void main() async {
  final tableWidget = TableWidget();
  print(tableWidget.build());
}

// Con Con DepController
class DepController<T> {
  T instance;

  DepController(T Function() builder) : instance = builder();