From: "ko1 (Koichi Sasada) via ruby-core" <ruby-core@...>
Date: 2026-09-08T19:11:50+00:00
Subject: [ruby-core:126594] [Ruby Feature#17513] Methods of shareable objects and UnboundMethods should be shareable

Issue #17513 has been updated by ko1 (Koichi Sasada).

Status changed from Assigned to Closed

4c893e2ff1

----------------------------------------
Feature #17513: Methods of shareable objects and UnboundMethods should be shareable
https://bugs.ruby-lang.org/issues/17513#change-118819

* Author: marcandre (Marc-Andre Lafortune)
* Status: Closed
* Assignee: ko1 (Koichi Sasada)
----------------------------------------
```ruby
class Foo
  def foo
  end
end

f = Foo.new.freeze
Ractor.shareable?(f) # => true
Ractor.make_shareable(f.method(:foo).to_proc) # => Proc, ok
Ractor.make_shareable(f.method(:foo)) # => Ractor::Error, expected Method
Ractor.make_shareable(Foo.instance_method(:foo)) # => Ractor::Error, expected UnboundMethod
```




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