관리-도구
편집 파일: stream_printer.rb
# frozen_string_literal: true require_relative "visitor" module Gem::SafeMarshal module Visitors class StreamPrinter < Visitor def initialize(io, indent: "") @io = io @indent = indent @level = 0 end def visit(target) @io.write("#{@indent * @level}#{target.class}") target.instance_variables.each do |ivar| value = target.instance_variable_get(ivar) next if Elements::Element === value || Array === value @io.write(" #{ivar}=#{value.inspect}") end @io.write("\n") begin @level += 1 super ensure @level -= 1 end end end end end