Retrying with context for when and notify

[BlueGlassBlock]

Another approach to #39, see #54

[BlueGlassBlock]

Currently the problem is that when requires fn(&E) -> bool while the field requires fn(&E, &C) -> bool which cannot be casted to.

The same applies to notify.

[Xuanwo]

Currently the problem is that when requires fn(&E) -> bool while the field requires fn(&E, &C) -> bool which cannot be casted to.

Can we set the when to |err, _| f(err)?

[BlueGlassBlock]

Can we set the when to |err, _| f(err)?

Unfortunately, no, since it's a fn: cannot capture anything even using move

[Xuanwo]

I have some new ideas, but it's shortcome is that we need to implment call for differnt compose of C, RF and NF. Do you have better solutions?

[Xuanwo]

I have some new ideas, but it's shortcome is that we need to implment call for differnt compose of C, RF and NF. Do you have better solutions?

Ok, I fixed it.

[BlueGlassBlock]

Wow, type gymnastics saved the world again 😂

[Xuanwo]

Replaced by #54