Massive upgrade

core/template/src/BlockHandler/Base.php

@@ -0,0 +1,19 @@
+<?php
+
+namespace Smarty\BlockHandler;
+
+use Smarty\Template;
+
+abstract class Base implements BlockHandlerInterface {
+
+	/**
+	 * @var bool
+	 */
+	protected $cacheable = true;
+
+	abstract public function handle($params, $content, Template $template, &$repeat);
+
+	public function isCacheable(): bool {
+		return $this->cacheable;
+	}
+}