From: "fxn (Xavier Noria) via ruby-core" <ruby-core@...>
Date: 2025-05-09T23:02:17+00:00
Subject: [ruby-core:121954] [Ruby Bug#21319] Namespaces do not support including mixins

Issue #21319 has been reported by fxn (Xavier Noria).

----------------------------------------
Bug #21319: Namespaces do not support including mixins
https://bugs.ruby-lang.org/issues/21319

* Author: fxn (Xavier Noria)
* Status: Open
* Backport: 3.2: UNKNOWN, 3.3: UNKNOWN, 3.4: UNKNOWN
----------------------------------------
The following program

```ruby
module M
end

class C
  include M
end
```

fails under a namespace with error

```
'Module#include': Cannot include refinement (TypeError)
```



-- 
https://bugs.ruby-lang.org/
 ______________________________________________
 ruby-core mailing list -- ruby-core@ml.ruby-lang.org
 To unsubscribe send an email to ruby-core-leave@ml.ruby-lang.org
 ruby-core info -- https://ml.ruby-lang.org/mailman3/lists/ruby-core.ml.ruby-lang.org/