class RuboCop::Cop::Style::SingleLineMethods

def correct_to_endless(corrector, node)
  self_receiver = node.self_receiver? ? 'self.' : ''
  arguments = node.arguments.any? ? node.arguments.source : '()'
  body_source = method_body_source(node.body)
  replacement = "def #{self_receiver}#{node.method_name}#{arguments} = #{body_source}"
  corrector.replace(node, replacement)
end