Why missing required factory parameter is silently replaced with null?

[AlexanderFarkas]

class SettingsBloc {
  final Event event;

  SettingsBloc(@factoryParam this.event);
}

The call getIt<SettingsBloc>() works without crashes. But it shouldn't. Why missing required parameter is considered expected behavior, and it is silently replaced with null? (Untill null pointer exception thrown somewhere).

[escamoteur]

This looks to me as if you are using injectable. I think get_it doesn't do anything like that.

[AlexanderFarkas]

It's not the problem with injectable. I can reproduce the same in pure get_it.

Registering: GetIt.instance.registerFactoryParam<SettingsBloc, Event, dynamic>((event, _) => SettingsBloc(event));

then: final bloc = GetIt.instance<SettingsBloc>()

and: bloc.event == null

[escamoteur]

ah; it's a factory with parameters. yeah, get_it can't know what value you want to pass there. i I wonder if it would help to give them default values of ´Objec()´

[AlexanderFarkas]

I suppose, it should at least throw, when required param is not passed. And, of course, it shouldn't be null by default

[escamoteur]

could you creat a PR with a unit test for this?

[sannykhan3777]

@escamoteur Any solutions to this?