Feature #7609: Class#singleton_class?

• Status: Closed
• Assignee: nobu (Nobuyoshi Nakada)
• Target version: 2.6

[nobu (Nobuyoshi Nakada)]

Related to #7554, there is no way to tell the called method is a singleton method or an ordinary method.

[marcandre (Marc-Andre Lafortune)]

Moving to Feature requests.

Just curious about use case?

Also, can be hacked in Ruby already...

class Class
  def singleton_class?
    Class.new(self) && true rescue false
  end
end

[marcandre (Marc-Andre Lafortune)]

• Tracker changed from Bug to Feature

[matz (Yukihiro Matsumoto)]

• Assignee set to nobu (Nobuyoshi Nakada)
• Target version set to 2.6

OK.

[nobu (Nobuyoshi Nakada)]

• Status changed from Open to Closed
• % Done changed from 0 to 100

This issue was solved with changeset r42449.
Nobuyoshi, thank you for reporting this issue.
Your contribution to Ruby is greatly appreciated.
May Ruby be with you.

---

object.c: Module#singleton_class?

• object.c (rb_mod_singleton_p): new method Module#singleton_class? to
  return whether the receiver is a singleton class or not.
  [ruby-core:51087] [Feature #7609]