Mobx.dart: NNBD: Nullable getters and setters don't get extended with the nullable type

[hacker1024]

Here's part of my store, which supports signing in and out:

abstract class _AuthStore with Store {
  @observable
  User? user;
}

And here's the generated code:

final _$userAtom = Atom(name: '_AuthStore.user');

@override
User get user {
  _$userAtom.reportRead();
  return super.user;
}

@override
set listener(User value) {
  _$userAtom.reportWrite(value, super.user, () {
    super.user = value;
  });
}

The generated getters and setters do not use the correct User? type, and instead use the non-nullable User. This does not compile.

[pavanpodila]

NNBD is a fairly big change and we are working on it. It's currently not supported.

[hacker1024]

Understood, I just figured I should report this as I haven't seen it mentioned in any NNBD discussions.

[fzyzcjy]

Hi is there any updates? Since nullable observable values are very common

[fzyzcjy]

I have created a PR here (any suggestions and updates are welcomed!): https://github.com/mobxjs/mobx.dart/pull/631

[pavanpodila]

Dupe of #598

Null safe versions have been published for mobx, flutter_mobx and mobx_codegen