events: removed magic

Author: dg

composer.json

@@ -17,7 +17,7 @@
 	"require": {
 		"php": ">=8.0 <8.3",
 		"ext-iconv": "*",
-		"nette/utils": "^3.1"
+		"nette/utils": "^3.2.1"
 	},
 	"require-dev": {
 		"nette/di": "^3.0.0",

src/Mail/FallbackMailer.php

@@ -17,7 +17,7 @@ class FallbackMailer implements Mailer
 	use Nette\SmartObject;
 
 	/** @var callable[]  function (FallbackMailer $sender, SendException $e, Mailer $mailer, Message $mail): void */
-	public $onFailure;
+	public $onFailure = [];
 
 	/** @var Mailer[] */
 	private $mailers;
@@ -64,7 +64,7 @@ public function send(Message $mail): void
 
 				} catch (SendException $e) {
 					$failures[] = $e;
-					$this->onFailure($this, $e, $mailer, $mail);
+					Nette\Utils\Arrays::invoke($this->onFailure, $this, $e, $mailer, $mail);
 				}
 			}
 		}