class RuboCop::Cop::Sorbet::ForbidTStruct

def on_class(node)
  return unless t_struct?(node.parent_class)
  add_offense(node, message: MSG_STRUCT) do |corrector|
    walker = TStructWalker.new
    walker.walk(node.body)
    range = range_between(node.identifier.source_range.end_pos, node.parent_class.source_range.end_pos)
    corrector.remove(range)
    next if node.single_line?
    unless walker.has_extend_t_sig
      indent = offset(node)
      corrector.insert_after(node.identifier, "\n#{indent}  extend T::Sig\n")
    end
    first_prop = walker.props.first
    walker.props.each do |prop|
      node = prop.node
      indent = offset(node)
      line_range = range_by_whole_lines(prop.node.source_range)
      new_line = prop != first_prop && !previous_line_blank?(node)
      trailing_comments = processed_source.each_comment_in_lines(line_range.line..line_range.line)
      corrector.replace(
        line_range,
        "#{new_line ? "\n" : ""}" \
          "#{trailing_comments.map { |comment| "#{indent}#{comment.text}\n" }.join}" \
          "#{indent}#{prop.attr_sig}\n#{indent}#{prop.attr_accessor}",
      )
    end
    last_prop = walker.props.last
    if last_prop
      indent = offset(last_prop.node)
      line_range = range_by_whole_lines(last_prop.node.source_range, include_final_newline: true)
      corrector.insert_after(line_range, initialize_method(indent, walker.props))
    end
  end
end