From a311fe00177fa40b67314fa2aba7da04667d9711 Mon Sep 17 00:00:00 2001
From: Markus Bachmann <info@bachi.biz>
Date: Tue, 18 Dec 2012 10:57:02 +0100
Subject: [PATCH] Fix the registration of simple filters, test and functions

---
 lib/Twig/Environment.php |   15 +++++++++++++++
 1 files changed, 15 insertions(+), 0 deletions(-)

diff --git a/lib/Twig/Environment.php b/lib/Twig/Environment.php
index 543111b..9958573 100644
--- a/lib/Twig/Environment.php
+++ b/lib/Twig/Environment.php
@@ -761,6 +761,11 @@ class Twig_Environment
             throw new LogicException('A filter must be an instance of Twig_FilterInterface or Twig_SimpleFilter');
         }
 
+        if ($name instanceof Twig_SimpleFilter) {
+            $filter = $name;
+            $name = $filter->getName();
+        }
+
         $this->staging->addFilter($name, $filter);
     }
 
@@ -845,6 +850,11 @@ class Twig_Environment
             throw new LogicException('A test must be an instance of Twig_TestInterface or Twig_SimpleTest');
         }
 
+        if ($name instanceof Twig_SimpleTest) {
+            $test = $name;
+            $name = $test->getName();
+        }
+
         $this->staging->addTest($name, $test);
     }
 
@@ -878,6 +888,11 @@ class Twig_Environment
             throw new LogicException('A function must be an instance of Twig_FunctionInterface or Twig_SimpleFunction');
         }
 
+        if ($name instanceof Twig_SimpleFunction) {
+            $function = $name;
+            $name = $function->getName();
+        }
+
         $this->staging->addFunction($name, $function);
     }
 
-- 
1.7.2.5