EventSinkSignalMixin

EventSinkSignalMixin is a mixin for a Signal that implements EventSink.

Note

This mixin only works with signals that have a value type of AsyncState<T>.

class MySignal extends Signal<AsyncState<int>> with EventSinkSignalMixin<int> {
  MySignal(int value) : super(AsyncState.data(value));
}

void main() {
  final signal = MySignal(0);
  signal.add(1);
  print(signal.value.hasValue); // true
  print(signal.value.value); // 1
  signal.addError('error');
  print(signal.value.hasError); // true
  print(signal.value.error); // error
  signal.close();
  print(signal.disposed); // true
}

This allows you to use the signal as a EventSink anywhere you would use a EventSink in Dart.

.add()

When add is called it will set the value of the signal.

.addError()

When addError is called it will set the error of the signal.

.close()

When close is called it will dispose the signal and remove all listeners.