class RuboCop::Cop::Style::SelfAssignment

def check_send_node(node, rhs, var_name, var_type)
  return unless OPS.include?(rhs.method_name)
  target_node = s(var_type, var_name)
  return unless rhs.receiver == target_node
  add_offense(node, message: format(MSG, method: rhs.method_name)) do |corrector|
    autocorrect(corrector, node)
  end
end