watchEffect2<T1, T2, TObs1, TObs2> function

Implementation

void watchEffect2<T1, T2, TObs1, TObs2>(
  BuildContext context,
  void Function(T1, T2) effect,
  Object obs1,
  Object obs2, {
  Object? key,
  bool immediate = false,
  bool once = false,
}) {
  final contextWatch = InheritedContextWatch.of(context);

  final observable1 = contextWatch.getOrCreateObservable<TObs1>(context, obs1);
  if (observable1 == null) return;
  final observable2 = contextWatch.getOrCreateObservable<TObs2>(context, obs2)!;

  observable1.watchEffect((arg1) {
    if (shouldAbortMassEffect2(key, observable1, observable2,
        once: once, immediate: immediate)) {
      return;
    }
    final arg2 = observable2.subscription.callbackArgument as T2;
    effect(arg1, arg2);
  }, key: key, immediate: immediate, once: once);
  observable2.watchEffect((arg2) {
    if (shouldAbortMassEffect2(key, observable1, observable2,
        once: once, immediate: immediate)) {
      return;
    }
    final arg1 = observable1.subscription.callbackArgument as T1;
    effect(arg1, arg2);
  }, key: key, immediate: immediate, once: once);
}