Merge pull request #11495 from tobymao/1837-sold-out

[Core] Prevent negative coordinates from inadvertently indexing from the end of the array
tobymao · Jan 30, 2025 · 358b2e5 · 358b2e5
2 parents b40c9b3 + 138c40e
commit 358b2e5
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/lib/engine/stock_movement.rb b/lib/engine/stock_movement.rb
@@ -8,6 +8,8 @@ def initialize(market)
 
     def share_price(coordinates)
       row, column = coordinates
+      return if row.negative? || column.negative?
+
       @market.market[row]&.[](column)
     end