global

def deprecated(options = {}, &block) # :nodoc:
  message =
    if options[:message]
      options[:message]
    else
      klass = options.fetch(:class)
      msep = case klass
      when Class, Module
        "."
      else
        klass = klass.class
        "#"
      end
      method = "#{klass}#{msep}#{options.fetch(:method)}"
      pre = " #{options[:pre]}" if options[:pre]
      post = case options[:next]
      when :private, :protected
        " and will be made #{options[:next]}"
      when :removed
        " and will be removed"
      when nil, ""
        nil
      else
        " #{options[:next]}"
      end
      <<-WARNING.chomp.strip
      #{caller(2..2).first}: #{klass}#{msep}#{method}#{pre} is deprecated#{post}.
      WARNING
    end
  if !__deprecation_logged?(message, options[:once])
    MIME::Types.logger.__send__(options[:level] || :debug, message)
  end
  return unless block
  block.call
end