[ruby-core:69516] [Ruby trunk - Bug #11246] [Open] refine block doesn't respect "lexical" refinement information

Issue #11246 has been reported by Koichi Sasada.

----------------------------------------
Bug #11246: refine block doesn't respect "lexical" refinement information
https://bugs.ruby-lang.org/issues/11246

* Author: Koichi Sasada
* Status: Open
* Priority: Normal
* Assignee: Shugo Maeda
* ruby -v: ruby 2.3dev
* Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN, 2.2: UNKNOWN
----------------------------------------
The following program making two refinements refine class C.

```ruby
class C
  def foo
    p C
  end
end

module R1
  refine C do
    def foo
      p R1
      super
    end
  end
end

using R1 # 1

module R2
  using R1 # 2

  refine C do
    # using R1 # 3

    def bar
      C.new.foo
    end
  end
end

using R2

C.new.bar
```

Without `using R1 # 3`, `C#foo` was called in `R2::C#bar`.

By `using R21 #1` and `#2`, we declared that this lexical scope should use R1. However, it seems that this declaration is ignored.

Is it an intentional behavior?




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