[ruby-core:86550] [Ruby trunk Feature#14344] refine at class level

Issue #14344 has been updated by Eregon (Benoit Daloze).


I am a MRI committer. This is just my opinion, but I'm confident it is shared by other committers as well.

I believe changing the semantics of `refine` (to be using+Module.new+refine) based on whether the receiver is a Class or Module is not acceptable.
So, we need a new name for this feature as `refine` would be too confusing with the existing semantics.

Changing the semantics for `refine` for all cases would be consistent, but introduce too large incompatibilities.
So a new name seems the way forward, do you have a suggestion?

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Feature #14344: refine at class level
https://bugs.ruby-lang.org/issues/14344#change-71490

* Author: kddeisz (Kevin Deisz)
* Status: Open
* Priority: Normal
* Assignee: 
* Target version: 
----------------------------------------
I rely on refinements a lot, but don't want to keep writing `Module.new` in code. I'm proposing `Object::refine`, which would create an anonymous module behind the scenes with equivalent functionality. So:

~~~ ruby
class Test
  using Module.new {
    refine String do
      def refined?
        true
      end
    end
  }
end
~~~

would become

~~~ ruby
class Test
  refine String do
    def refined?
      true
    end
  end
end
~~~

It's a small change, but reads a lot more clearly. Thoughts?



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