Feature #20715: `Ractor.[]` and `Ractor.[]=` to access Ractor local storage

• Status: Open
• Assignee: ko1 (Koichi Sasada)
• Target version: -

[ko1 (Koichi Sasada)]

Trivial proposal.

Now Ractor#[]/#[]= is supported to access current ractor local storage. However, it doesn't allow to access local storage of other ractors.

Ractor.current[:foo] = 1

Ractor.new{ 
  p Ractor.main[:foo] #=> nil
}.take

So providing Ractor.[]/[]= is more reasonable.
Further more, we don't need to use Ractor#current and it is slightly faster.

[Eregon (Benoit Daloze)]

+1, makes perfect sense (IMO it would be nice to do the same for Fiber and Thread as well but out of scope of this issue).

[byroot (Jean Boussier)]

it would be nice to do the same for Fiber and Thread as well

Would also be the occasion for Thread[] to be actual thread local instead of fiber local.