Fix various compatibility issues with PHP 8

libs/swiftmailer/classes/Swift/Events/TransportExceptionEvent.php

@@ -0,0 +1,46 @@
+<?php
+
+/*
+ * This file is part of SwiftMailer.
+ * (c) 2004-2009 Chris Corbyn
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Generated when a TransportException is thrown from the Transport system.
+ *
+ * @author Chris Corbyn
+ */
+class Swift_Events_TransportExceptionEvent extends Swift_Events_EventObject
+{
+    /**
+     * The Exception thrown.
+     *
+     * @var Swift_TransportException
+     */
+    private $_exception;
+
+    /**
+     * Create a new TransportExceptionEvent for $transport.
+     *
+     * @param Swift_Transport          $transport
+     * @param Swift_TransportException $ex
+     */
+    public function __construct(Swift_Transport $transport, Swift_TransportException $ex)
+    {
+        parent::__construct($transport);
+        $this->_exception = $ex;
+    }
+
+    /**
+     * Get the TransportException thrown.
+     *
+     * @return Swift_TransportException
+     */
+    public function getException()
+    {
+        return $this->_exception;
+    }
+}