Yes, technically adding trait impl to the existing type doesn't requires the RFC process and get insta-stabilized. But I think what I want to do is not very obvious and maybe too opinionated so I wanted to collect more thoughts before sending the PR.
Option<T: Future> should
impl Future<Output = Option<T::Output>>. I guess most people wouldn't disagree with it. The possibly-opinionated part is, that I think
Option<impl Future> should be fused - polling it should keep returning
Ready(None) after the first
Ready result. Implementation would be fairly trivial thanks to the
Does it seems too opinionated for the stdlib? Or am I overthinking it? Please let me know how do you think about it.