class RuboCop::Cop::Style::PerlBackrefs

def autocorrect(node)
  lambda do |corrector|
    backref, = *node
    parent_type = node.parent ? node.parent.type : nil
    if %i[dstr xstr regexp].include?(parent_type)
      corrector.replace(node.source_range,
                        "{Regexp.last_match(#{backref})}")
    else
      corrector.replace(node.source_range,
                        "Regexp.last_match(#{backref})")
    end
  end
end