Switch from \twig_extension to AbstractExtension (#11)

Support twig 3

Author: QuentinNanomonx

composer.json

@@ -30,7 +30,7 @@
     "bossa/phpspec2-expect": "^3.0",
     "phpspec/phpspec": "^4.3",
     "roave/security-advisories": "dev-master",
-    "twig/twig": "^2.4"
+    "twig/twig": "^2.7"
   },
   "extra": {
     "branch-alias": {

src/Twig/HashidsExtension.php

@@ -5,8 +5,10 @@
 namespace Roukmoute\HashidsBundle\Twig;
 
 use Roukmoute\HashidsBundle\Hashids;
+use Twig\Extension\AbstractExtension;
+use Twig\TwigFilter;
 
-class HashidsExtension extends \Twig_Extension
+class HashidsExtension extends AbstractExtension
 {
     /**
      * @var Hashids
@@ -21,8 +23,8 @@ public function __construct(Hashids $hashids)
     public function getFilters(): array
     {
         return [
-            new \Twig_SimpleFilter('hashids_encode', [$this, 'encode']),
-            new \Twig_SimpleFilter('hashids_decode', [$this, 'decode']),
+            new TwigFilter('hashids_encode', [$this, 'encode']),
+            new TwigFilter('hashids_decode', [$this, 'decode']),
         ];
     }