inspect

# File lib/ostruct.rb, line 310
  def inspect
    ids = (Thread.current[InspectKey] ||= [])
    if ids.include?(object_id)
      detail = ' ...'
    else
      ids << object_id
      begin
        detail = @table.map do |key, value|
          " #{key}=#{value.inspect}"
        end.join(',')
      ensure
        ids.pop
      end
    end
    ['#<', self.class, detail, '>'].join
  end