lib/rubocop/cop/rails/redundant_allow_nil.rb in rubocop-rails-2.11.2 vs lib/rubocop/cop/rails/redundant_allow_nil.rb in rubocop-rails-2.11.3

@@ -54,12 +54,12 @@
 
         private
 
         def register_offense(allow_nil, message)
           add_offense(allow_nil, message: message) do |corrector|
-            prv_sib = previous_sibling(allow_nil)
-            nxt_sib = next_sibling(allow_nil)
+            prv_sib = allow_nil.left_sibling
+            nxt_sib = allow_nil.right_sibling
 
             if nxt_sib
               corrector.remove(range_between(node_beg(allow_nil), node_beg(nxt_sib)))
             elsif prv_sib
               corrector.remove(range_between(node_end(prv_sib), node_end(allow_nil)))
@@ -84,17 +84,9 @@
             found_in_children_nodes = find_allow_nil_and_allow_blank(child_node)
             return found_in_children_nodes if found_in_children_nodes
           end
 
           nil
-        end
-
-        def previous_sibling(node)
-          node.parent.children[node.sibling_index - 1]
-        end
-
-        def next_sibling(node)
-          node.parent.children[node.sibling_index + 1]
         end
 
         def node_beg(node)
           node.loc.expression.begin_pos
         end