change extension to custom

src/SPC/util/CustomExt.php

@@ -0,0 +1,41 @@
+<?php
+
+declare(strict_types=1);
+
+namespace SPC\util;
+
+use SPC\builder\Extension;
+use SPC\exception\FileSystemException;
+use SPC\store\FileSystem;
+
+#[\Attribute(\Attribute::IS_REPEATABLE | \Attribute::TARGET_CLASS)]
+class CustomExt
+{
+    private static array $custom_ext_class = [];
+
+    public function __construct(protected string $ext_name)
+    {
+    }
+
+    /**
+     * Load all custom extension classes
+     *
+     * @throws \ReflectionException
+     * @throws FileSystemException
+     */
+    public static function loadCustomExt(): void
+    {
+        $classes = FileSystem::getClassesPsr4(ROOT_DIR . '/src/SPC/builder/extension', 'SPC\\builder\\extension');
+        foreach ($classes as $class) {
+            $reflection = new \ReflectionClass($class);
+            foreach ($reflection->getAttributes(CustomExt::class) as $attribute) {
+                self::$custom_ext_class[$attribute->getArguments()[0]] = $class;
+            }
+        }
+    }
+
+    public static function getExtClass(string $ext_name): string
+    {
+        return self::$custom_ext_class[$ext_name] ?? Extension::class;
+    }
+}