Psych::Visitors::YAMLTree#visit_Struct

# File tmp/rubies/ruby-3.1.3/ext/psych/lib/psych/visitors/yaml_tree.rb, line 169
def visit_Struct o
  tag = ['!ruby/struct', o.class.name].compact.join(':')

  register o, @emitter.start_mapping(nil, tag, false, Nodes::Mapping::BLOCK)
  o.members.each do |member|
    @emitter.scalar member.to_s, nil, nil, true, false, Nodes::Scalar::ANY
    accept o[member]
  end

  dump_ivars o

  @emitter.end_mapping
end