From 8b7136320c2047d3021cbccddb5e804325203a0f Mon Sep 17 00:00:00 2001
From: nergal <me@2mio.com>
Date: Thu, 12 Dec 2013 06:47:41 +0200
Subject: [PATCH] Add extension support to yii\twig\ViewRenderer

---
 extensions/yii/twig/ViewRenderer.php | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/extensions/yii/twig/ViewRenderer.php b/extensions/yii/twig/ViewRenderer.php
index b1598cf..7483f04 100644
--- a/extensions/yii/twig/ViewRenderer.php
+++ b/extensions/yii/twig/ViewRenderer.php
@@ -28,6 +28,11 @@ class ViewRenderer extends BaseViewRenderer
 	public $cachePath = '@runtime/Twig/cache';
 
 	/**
+	 * @var array extentions list.
+	 */
+	public $extensions = [];
+
+	/**
 	 * @var array Twig options
 	 * @see http://twig.sensiolabs.org/doc/api.html#environment-options
 	 */
@@ -45,6 +50,12 @@ class ViewRenderer extends BaseViewRenderer
 		$this->twig = new \Twig_Environment($loader, array_merge([
 			'cache' => Yii::getAlias($this->cachePath),
 		], $this->options));
+		
+		if (!empty($this->extensions)) {
+			foreach ($this->extensions as $extension) {
+				$this->twig->addExtension(new $extension());
+			}
+		}
 
 		$this->twig->addFunction('path', new \Twig_Function_Function(function ($path, $args = []) {
 			return Html::url(array_merge([$path], $args));