From: "nobu (Nobuyoshi Nakada) via ruby-core" <ruby-core@...>
Date: 2024-11-07T04:03:25+00:00
Subject: [ruby-core:119789] [Ruby master Feature#20715] `Ractor.[]` and `Ractor.[]=` to access Ractor local storage

Issue #20715 has been updated by nobu (Nobuyoshi Nakada).


I'd expect that accessing other Ractors' local storages will raise an exception.

----------------------------------------
Feature #20715: `Ractor.[]` and `Ractor.[]=` to access Ractor local storage
https://bugs.ruby-lang.org/issues/20715#change-110472

* Author: ko1 (Koichi Sasada)
* Status: Assigned
* Assignee: 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.

```ruby
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.



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