[ruby-core:124089] [Ruby Bug#21318] Namespaces leak with Module.nesting

9 Dec 2025

      Issue #21318 has been updated by tagomoris (Satoshi Tagomori).

Assignee set to tagomoris (Satoshi Tagomori)

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Bug #21318: Namespaces leak with Module.nesting
https://bugs.ruby-lang.org/issues/21318#change-115533

* Author: fxn (Xavier Noria)
* Status: Open
* Assignee: tagomoris (Satoshi Tagomori)
* Backport: 3.2: UNKNOWN, 3.3: UNKNOWN, 3.4: UNKNOWN
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Namespaces are not transparent for this program:

```ruby
Module.nesting
```

The nesting is empty or not depending on whether it is being executed under a namespace.

-- 
https://bugs.ruby-lang.org/