class RuboCop::Cop::Style::SelectByRegexp

def on_send(node)
  return unless (block_node = node.block_node)
  return if block_node.body&.begin_type?
  return if receiver_allowed?(block_node.receiver)
  return unless (regexp_method_send_node = extract_send_node(block_node))
  return if match_predicate_without_receiver?(regexp_method_send_node)
  replacement = replacement(regexp_method_send_node, node)
  return if target_ruby_version <= 2.2 && replacement == 'grep_v'
  regexp = find_regexp(regexp_method_send_node, block_node)
  register_offense(node, block_node, regexp, replacement)
end