symfony
diff --git a/‎src/Symfony/Bundle/TwigBundle/CHANGELOG.md
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+5Lines changed: 5 additions & 0 deletions b/‎src/Symfony/Bundle/TwigBundle/CHANGELOG.md
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diff --git a/‎src/Symfony/Bundle/TwigBundle/DependencyInjection/Compiler/TwigEnvironmentPass.php
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+5-3Lines changed: 5 additions & 3 deletions b/‎src/Symfony/Bundle/TwigBundle/DependencyInjection/Compiler/TwigEnvironmentPass.php
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diff --git a/‎src/Symfony/Bundle/TwigBundle/Tests/DependencyInjection/Compiler/TwigEnvironmentPassTest.php
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+45Lines changed: 45 additions & 0 deletions b/‎src/Symfony/Bundle/TwigBundle/Tests/DependencyInjection/Compiler/TwigEnvironmentPassTest.php
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+45Lines changed: 45 additions & 0 deletions
@@ -1,6 +1,11 @@
 CHANGELOG
 =========
 
+4.1.0
+-----
+
+ * added priority to Twig extensions 
+
 4.0.0
 -----
 
 
@@ -11,7 +11,7 @@
 
 namespace Symfony\Bundle\TwigBundle\DependencyInjection\Compiler;
 
-use Symfony\Component\DependencyInjection\Reference;
+use Symfony\Component\DependencyInjection\Compiler\PriorityTaggedServiceTrait;
 use Symfony\Component\DependencyInjection\ContainerBuilder;
 use Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface;
 
@@ -22,6 +22,8 @@
  */
 class TwigEnvironmentPass implements CompilerPassInterface
 {
+    use PriorityTaggedServiceTrait;
+
     public function process(ContainerBuilder $container)
     {
         if (false === $container->hasDefinition('twig')) {
@@ -36,8 +38,8 @@ public function process(ContainerBuilder $container)
         // be registered.
         $calls = $definition->getMethodCalls();
         $definition->setMethodCalls(array());
-        foreach ($container->findTaggedServiceIds('twig.extension', true) as $id => $attributes) {
-            $definition->addMethodCall('addExtension', array(new Reference($id)));
+        foreach ($this->findAndSortTaggedServices('twig.extension', $container) as $extension) {
+            $definition->addMethodCall('addExtension', array($extension));
         }
         $definition->setMethodCalls(array_merge($definition->getMethodCalls(), $calls));
     }
 
@@ -0,0 +1,45 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Bundle\TwigBundle\Tests\DependencyInjection\Compiler;
+
+use PHPUnit\Framework\TestCase;
+use Symfony\Bundle\TwigBundle\DependencyInjection\Compiler\TwigEnvironmentPass;
+use Symfony\Component\DependencyInjection\ContainerBuilder;
+use Symfony\Component\DependencyInjection\Definition;
+
+class TwigEnvironmentPassTest extends TestCase
+{
+    public function testPassWithTwoExtensionsWithPriority()
+    {
+        $twigDefinition = new Definition('twig');
+        $twigDefinition->setPublic(true);
+        $builder = new ContainerBuilder();
+        $builder->setDefinition('twig', $twigDefinition);
+        $pass = new TwigEnvironmentPass();
+
+        $definition = new Definition('test_extension_1');
+        $definition->addTag('twig.extension', array('priority' => 100));
+        $builder->setDefinition('test_extension_1', $definition);
+
+        $definition = new Definition('test_extension_2');
+        $definition->addTag('twig.extension', array('priority' => 200));
+        $builder->setDefinition('test_extension_2', $definition);
+
+        $pass->process($builder);
+        $calls = $twigDefinition->getMethodCalls();
+        $this->assertCount(2, $calls);
+        $this->assertEquals('addExtension', $calls[0][0]);
+        $this->assertEquals('addExtension', $calls[1][0]);
+        $this->assertEquals('test_extension_2', (string) $calls[0][1][0]);
+        $this->assertEquals('test_extension_1', (string) $calls[1][1][0]);
+    }
+}