class RuboCop::Cop::Lint::DefEndAlignment

end
private def foo
@example
`def` keyword.
keyword is. If it’s set to ‘def`, the `end` shall be aligned with the
`end` shall be aligned with the start of the line where the `def`
parameter. If it’s set to ‘start_of_line` (which is the default), the
Two modes are supported through the AlignWith configuration
aligned properly.
This cop checks whether the end keywords of method definitions are

def on_method(node, _method_name, _args, _body) 

def on_method(node, _method_name, _args, _body)
  check_offset_of_node(node)
end

def on_send(node) 

def on_send(node)
  receiver, method_name, *args = *node
  return unless visibility_and_def_on_same_line?(receiver, method_name,
                                                 args)
  method_def = args.first
  if style == :start_of_line
    expr = node.loc.expression
    range = Parser::Source::Range.new(expr.source_buffer,
                                      expr.begin_pos,
                                      method_def.loc.keyword.end_pos)
    check_offset(method_def, range.source,
                 method_def.loc.keyword.begin_pos - expr.begin_pos)
  else
    check_offset(method_def, 'def', 0)
  end
  ignore_node(method_def) # Don't check the same `end` again.
end