Split extension into extension and runtime classes to match how the maker bundle creates twig extensions

src/PcmIconBundle.php

@@ -5,10 +5,7 @@ declare(strict_types=1);
 namespace Pcm\IconBundle;
 
 use Pcm\IconBundle\DependencyInjection\PcmIconExtension;
-use Symfony\Component\Config\Definition\Configurator\DefinitionConfigurator;
-use Symfony\Component\DependencyInjection\ContainerBuilder;
 use Symfony\Component\DependencyInjection\Extension\ExtensionInterface;
-use Symfony\Component\DependencyInjection\Loader\Configurator\ContainerConfigurator;
 use Symfony\Component\HttpKernel\Bundle\AbstractBundle;
 
 class PcmIconBundle extends AbstractBundle

src/Twig/Extension/IconExtension.php

@@ -0,0 +1,22 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Pcm\IconBundle\Twig\Extension;
+
+use Pcm\IconBundle\Twig\Runtime\IconRuntime;
+use Twig\Extension\AbstractExtension;
+use Twig\TwigFunction;
+
+final class IconExtension extends AbstractExtension
+{
+    /**
+     * @inheritDoc
+     */
+    public function getFunctions(): array
+    {
+        return [
+            new TwigFunction('icon', [IconRuntime::class, 'renderIcon'])
+        ];
+    }
+}

src/Twig/Runtime/IconRuntime.php

@@ -2,12 +2,13 @@
 
 declare(strict_types=1);
 
-namespace Pcm\IconBundle\Twig\Functions;
+namespace Pcm\IconBundle\Twig\Runtime;
 
-use Twig\Extension\AbstractExtension;
-use Twig\TwigFunction;
+use Pcm\IconBundle\Exception\ColourNotFound;
+use Pcm\IconBundle\Exception\IconNotFound;
+use Twig\Extension\RuntimeExtensionInterface;
 
-final class IconExtension extends AbstractExtension
+final class IconRuntime implements RuntimeExtensionInterface
 {
     public const DEFAULT_SIZE = 32;
 
@@ -22,18 +23,6 @@ final class IconExtension extends AbstractExtension
 
     public function __construct(private array $directories, private array $colours) {}
 
-    /**
-     * @inheritDoc
-     */
-    public function getFunctions(): array
-    {
-        return [
-            new TwigFunction('icon', [$this, 'renderIcon'], [
-                'is_safe' => ['html']
-            ])
-        ];
-    }
-
     /**
      * @param array $options
      * ```
@@ -211,7 +200,3 @@ final class IconExtension extends AbstractExtension
         }
     }
 }
-
-class IconNotFound extends \Exception {};
-
-class ColourNotFound extends \Exception {};