From @jaumard on November 20, 2018 12:37

With the following code:

TransactionReceiptBloc() {
    final loadTransactionController = StreamController<int>(sync: true);
    transactionId = loadTransactionController.sink;
  }
  void close() {
    transactionId.close();
  }

dart analyzer still warn about sink not closed, but it is. Or do I miss something ?

ENV:
Dart VM version: 2.1.0-dev.9.4.flutter-f9ebf21297 (Thu Nov 8 23:00:07 2018 +0100) on "macos_x64"

Copied from original issue: #35221