1 files changed, 18 insertions, 0 deletions
diff --git a/lib/Minz/ExtensionManager.php b/lib/Minz/ExtensionManager.php
index fea1f5879..b1d499392 100644
--- a/lib/Minz/ExtensionManager.php
+++ b/lib/Minz/ExtensionManager.php
@@ -22,6 +22,10 @@ final class Minz_ExtensionManager {
 	 * @var array<string,array{'list':array<callable>,'signature':'NoneToNone'|'NoneToString'|'OneToOne'|'PassArguments'}>
 	 */
 	private static array $hook_list = [
+		'api_misc' => [	// function(): void
+			'list' => [],
+			'signature' => 'NoneToNone',
+		],
 		'check_url_before_add' => [	// function($url) -> Url | null
 			'list' => [],
 			'signature' => 'OneToOne',
@@ -429,4 +433,18 @@ final class Minz_ExtensionManager {
 			call_user_func($function);
 		}
 	}
+
+	/**
+	 * Call a hook which takes no argument and returns nothing.
+	 * Same as callHookVoid but only calls the first extension.
+	 *
+	 * @param string $hook_name is the hook to call.
+	 */
+	public static function callHookUnique(string $hook_name): bool {
+		foreach (self::$hook_list[$hook_name]['list'] ?? [] as $function) {
+			call_user_func($function);
+			return true;
+		}
+		return false;
+	}
 }