From: alex.wayfer@...
Date: 2021-03-12T18:18:01+00:00
Subject: [ruby-core:102833] [Ruby master Feature#17674] Proposal: `Method#source_location` or `Method#owner` for refined methods

Issue #17674 has been updated by AlexWayfer (Alexander Popov).


osyo (manga osyo) wrote in #note-1:
> hi.
> In Ruby 2.7 and later, `#method` supports Refinements.
> 
> ```ruby
> # test.rb
> module Cover
>   refine Range do
>     def cover?(value)
>       return super unless value.is_a?(Range)
> 
>       super(value.first) && super(value.last)
>     end
>   end
> end
> using Cover
> 
> pp (1..10).method(:cover?).source_location
> # Ruby 2.6 => nil
> # Ruby 2.7 => ["/test.rb", 4]
> 
> pp (1..10).method(:cover?).owner
> # Ruby 2.6 => Range
> # Ruby 2.7 => #<refinement:Range@Cover>
> ```
> 
> see: https://bugs.ruby-lang.org/issues/15373

Can't confirm:

```ruby
# frozen_string_literal: true

puts RUBY_VERSION
p (1..10).method(:cover?).source_location
```

```
~/Projects/ruby/test/source_location
> ruby test.rb
3.0.0
nil

~/Projects/ruby/test/source_location
> rbenv local 2.7.2

~/Projects/ruby/test/source_location
> ruby test.rb
2.7.2
nil
```

----------------------------------------
Feature #17674: Proposal: `Method#source_location` or `Method#owner` for refined methods
https://bugs.ruby-lang.org/issues/17674#change-90892

* Author: AlexWayfer (Alexander Popov)
* Status: Open
* Priority: Normal
----------------------------------------
Inspired by https://bugs.ruby-lang.org/issues/15504#note-17

I'm working on a gem with Ruby refinements, and some methods are invented in new Ruby versions like 2.5 or 3.0, and I'd like to define in this gem should I refine a method or not.

So��� current behavior of `Method#source_location` returns `nil` for core and/or refined methods. I think, refinements should be caught by this method. Also I didn't know about `Method#owner`, but it can be a case for refinements too.



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