Avoid infinite loop with self-referential rules

2021-09-04 22:29:10 -04:00 · 2021-09-04 22:29:10 -04:00 · 2c8f3c6e9a
commit 2c8f3c6e9a
parent 9dffa3c41a
1 changed files with 5 additions and 1 deletions
--- a/lib/imbecile/parser/item_set.rb
+++ b/lib/imbecile/parser/item_set.rb
@ -44,7 +44,11 @@ class Imbecile
          this_eval_items = eval_items
          eval_items = Set.new
          this_eval_items.each do |item|
-            eval_items += item.closed_items
+            item.closed_items.each do |new_item|
+              unless @items.include?(new_item)
+                eval_items << new_item
+              end
+            end
          end
          @items += eval_items
        end