From: "shioyama (Chris Salzberg) via ruby-core" <ruby-core@...>
Date: 2023-02-10T00:48:49+00:00
Subject: [ruby-core:112316] [Ruby master Feature#17753] Add Module#namespace

Issue #17753 has been updated by shioyama (Chris Salzberg).


> Regarding your proposal, in English would be `parent_module` right?

My interpretation here, but to me "parent module" would signify the "parent thing that is a module" of the current thing (whatever that thing may be), whereas "module parent" would signify the "module's parent", implying the _parent_ could be anything (but kind of implying it is also a module).

English-wise as a method name either is possible, they just have slightly different emphasis. I suggested `module_parent` because it exists and is being used for the same thing, so there's a precedent, which might make it easier to agree on.

----------------------------------------
Feature #17753: Add Module#namespace
https://bugs.ruby-lang.org/issues/17753#change-101757

* Author: tenderlovemaking (Aaron Patterson)
* Status: Open
* Priority: Normal
----------------------------------------
Given code like this:

```ruby
module A
  module B
    class C; end
    class D; end
  end
end
```

We can get from `C` to `B` like `C.outer_scope`, or to `A` like
`C.outer_scope.outer_scope`.

I want to use this in cases where I don't know the outer scope, but I
want to find constants that are "siblings" of a constant.  For example,
I can do `A::B::C.outer_scope.constants` to find the list of "sibling"
constants to `C`.  I want to use this feature when walking objects and
introspecting.  For example:

```ruby
ObjectSpace.each_object(Class) do |k|
  p siblings: k.outer_scope.constants
end
```

I've attached a patch that implements this feature, and there is a pull request on GitHub [here](https://github.com/ruby/ruby/pull/4326).

---Files--------------------------------
0001-Add-Module-outer_scope.patch (5.93 KB)
0001-Add-Module-namespace.patch (5.89 KB)


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