search_const

# File lib/optparse/version.rb, line 60
  def search_const(klass, name)
    klasses = [klass]
    while klass = klasses.shift
      klass.constants.each do |cname|
        klass.const_defined?(cname) or next
        const = klass.const_get(cname)
        yield klass, cname, const if name === cname
        klasses << const if Module === const and const != ::Object
      end
    end
  end