Bug #11186: Can't refine aliases in subclasses

• Status: Closed
• Assignee: shugo (Shugo Maeda)
• Target version: -
• ruby -v: ruby 2.3.0dev (2015-05-27 trunk 50647) [x86_64-linux]
• Backport: 2.1: DONTNEED, 2.2: DONTNEED, 2.3: DONTNEED

[shugo (Shugo Maeda)]

In the following program, D.new.bar returns :original, but should return :refined.

class C
  def foo
    :original
  end
end

class D < C
  alias bar foo
end

module M
  refine D do
    def bar
      :refined
    end
  end
end

using M
p D.new.bar

This bug seemed to be introduced in r45367.

[shugo (Shugo Maeda)]

• Assignee set to shugo (Shugo Maeda)

[shugo (Shugo Maeda)]

• Status changed from Open to Closed

Applied in changeset r56568.

---

• test/ruby/test_refinement.rb (test_refine_alias_in_subclass):
  add a test to check that alias in subclasses can be refined.
  [ruby-core:69374] [Bug #11186]

[shugo (Shugo Maeda)]

• Backport changed from 2.0.0: UNKNOWN, 2.1: UNKNOWN, 2.2: UNKNOWN to 2.1: DONTNEED, 2.2: DONTNEED, 2.3: DONTNEED

The bug was fixed in Ruby 2.3, and need not to be backported to prior versions, I think.