Allow ItemTooLargeException to return the item affected. Fixes #71

ItemTooLargeException.php

@@ -16,4 +16,25 @@
 class ItemTooLargeException extends \RuntimeException
 {
 
+    /** @var Item */
+    public $item;
+
+    /**
+     * ItemTooLargeException constructor.
+     *
+     * @param string $message
+     * @param Item   $item
+     */
+    public function __construct($message, Item $item) {
+        $this->item = $item;
+        parent::__construct($message);
+    }
+
+    /**
+     * @return Item
+     */
+    public function getItem() {
+        return $this->item;
+    }
+
 }

Packer.php

@@ -148,7 +148,7 @@ public function doVolumePacking()
 
             //Check iteration was productive
             if ($packedBoxesIteration->isEmpty()) {
-                throw new ItemTooLargeException('Item ' . $this->items->top()->getDescription() . ' is too large to fit into any box');
+                throw new ItemTooLargeException('Item ' . $this->items->top()->getDescription() . ' is too large to fit into any box', $this->items->top());
             }
 
             //Find best box of iteration, and remove packed items from unpacked list