From: "Eregon (Benoit Daloze)" <noreply@...>
Date: 2021-11-18T09:40:35+00:00
Subject: [ruby-core:106128] [Ruby master Feature#12737] Module#defined_refinements

Issue #12737 has been updated by Eregon (Benoit Daloze).


Module#refinements seems nice and straightforward.

I think `Refinement#refined_class` is useful in any case, +1 to add that.

I slightly prefer the array variant.
Since this would be mostly used for debugging, there might not be any need to filter in many cases, i.e., the Refinement#inspect output already shows the refined_class's name, so `p M.refinements` seems typical usage (and the Hash for that case would just be more verbose).

----------------------------------------
Feature #12737: Module#defined_refinements
https://bugs.ruby-lang.org/issues/12737#change-94726

* Author: shugo (Shugo Maeda)
* Status: Assigned
* Priority: Normal
----------------------------------------
How about to provide Module#defined_refinements, which returns the refinements defined in the receiver as a Hash, as follows:

```
module M
  refine String do
    $M_String = self
  end

  refine Integer do
    $M_Integer = self
  end
end

p M.defined_refinements #=> {String => $M_String, Integer => $M_Integer}
```

By `Module#defined_refinements`, you can activate refinements globally:

```
for klass, refinement in M.defined_refinements
  klass.prepend(refinement)
end
```




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