Nesting modules outside of module declaration [closed]

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I want something like A::B::C.nesting #=> [A::B::C, A::B, A] but outside of these modules' declarations... How can I get this? ActiveSupport is enabled. Thanks.

Answer 1

class Module
  def nesting
    a = inspect.split("::")
    a.length.downto(1).to_a.map{|l| const_get(a[0, l].join("::"))}
  end
end

or

class Module
  def nesting
    s = inspect
    s.count(":")./(2).downto(0).to_a.map{|l| const_get(s[/[^:]+(?:::[^:]+){#{l}}/])}
  end
end