class RuboCop::Cop::Performance::LstripRstrip

‘abc’.strip
# good
’abc’.rstrip.lstrip
’abc’.lstrip.rstrip
# bad
@example
`strip`.
This cop identifies places where ‘lstrip.rstrip` can be replaced by

def autocorrect(node) 

def autocorrect(node)
  range = range_between(node.receiver.loc.selector.begin_pos,
                        node.source_range.end_pos)
  ->(corrector) { corrector.replace(range, 'strip') }
end

def on_send(node) 

def on_send(node)
  lstrip_rstrip(node) do |first_send, method_one, method_two|
    range = range_between(first_send.loc.selector.begin_pos,
                          node.source_range.end_pos)
    add_offense(node,
                location: range,
                message: format(MSG,
                                methods: "#{method_one}.#{method_two}"))
  end
end