lib/rubocop/cop/style/slicing_with_range.rb in rubocop-1.57.2 vs lib/rubocop/cop/style/slicing_with_range.rb in rubocop-1.58.0

@@ -37,10 +37,10 @@
         # @!method range_till_minus_one?(node)
         def_node_matcher :range_till_minus_one?, '(irange !nil? (int -1))'
 
         def on_send(node)
           return unless node.arguments.count == 1
-          return unless range_till_minus_one?(node.arguments.first)
+          return unless range_till_minus_one?(node.first_argument)
 
           add_offense(node.first_argument) do |corrector|
             corrector.remove(node.first_argument.end)
           end
         end