From: "tagomoris (Satoshi Tagomori) via ruby-core" <ruby-core@...>
Date: 2025-12-09T13:17:45+00:00
Subject: [ruby-core:124102] [Ruby Bug#21363] `Namespace.current` should always return the Namespace in which it was defined

Issue #21363 has been updated by tagomoris (Satoshi Tagomori).

Status changed from Open to Closed

Now it's working as we expects:

```
MBA:build s-tagomori$ cat m.rb 
module M
  def self.test
    p test: Ruby::Box.current
  end

  TEST = -> {
    p lambda: Ruby::Box.current
  }
end
MBA:build s-tagomori$ RUBY_BOX=1 ./exe/ruby -e 'b = Ruby::Box.new; b.require("./m"); p main: Ruby::Box.current; b::M.test; b::M::TEST.call'
./exe/ruby: warning: Ruby::Box is experimental, and the behavior may change in the future!
See doc/language/box.md for known issues, etc.
{main: #<Namespace:2,user,main>}
{test: #<Namespace:3,user,optional>}
{lambda: #<Namespace:3,user,optional>}
MBA:build s-tagomori$ ./exe/ruby -v
ruby 4.0.0dev (2025-12-09T12:29:36Z box-news-documents.. c998717de8) +PRISM [arm64-darwin24]
```


----------------------------------------
Bug #21363: `Namespace.current` should always return the Namespace in which it was defined
https://bugs.ruby-lang.org/issues/21363#change-115546

* Author: tenderlovemaking (Aaron Patterson)
* Status: Closed
* Assignee: tagomoris (Satoshi Tagomori)
* ruby -v: ruby 3.5.0dev (2025-05-22T23:07:21Z rm-assertion 17e71c7a24) +PRISM [arm64-darwin24]
* Backport: 3.2: UNKNOWN, 3.3: UNKNOWN, 3.4: UNKNOWN
----------------------------------------
I think `Namespace.current` should always return the namespace in which it was defined.  Here is an example to demonstrate what I mean:

```ruby
File.binwrite("ns.rb", <<-RUBY)
# namespace 3

module M
  def self.test
    p Namespace.current
  end

  TEST = -> {
    p Namespace.current
  }
end
RUBY

ns = Namespace.new
ns.load "./ns.rb"

p Namespace.current
ns::M.test
ns::M::TEST.call
```

I expect the output of `ns::M.test` and `ns::M::TEST.call` to be the same.  Instead the output is like this:

```
#<Namespace:2,user,main>
#<Namespace:3,user,optional>
#<Namespace:2,user,main>
```

I think a method and lambda defined in the same namespace should return the same value for `Namespace.current`



-- 
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