Bug #21446: StackOverflow when changing visibility in reopened refinement

• Status: Open
• Assignee: -
• Target version: -
• ruby -v: 3.5.0
• Backport: 3.2: REQUIRED, 3.3: REQUIRED, 3.4: REQUIRED

[luke-gru (Luke Gruber)]

class A
  def a
    :a
  end
end
class B < A
end

module R
  refine B do
    private :a
  end
end
module R
  refine B do
    public :a
  end
end
using R
B.new.a # StackOverflow

I would expect it to change the visibility, not to overflow the stack.

[nobu (Nobuyoshi Nakada)]

It does not seem to need to reopen the refinement.

Reproduces just by changing visibility twice.

module R
  refine B do
    private :a
    public :a
  end
end

[nobu (Nobuyoshi Nakada)]

• Backport changed from 3.2: UNKNOWN, 3.3: UNKNOWN, 3.4: UNKNOWN to 3.2: REQUIRED, 3.3: REQUIRED, 3.4: REQUIRED