Swoole
PHP Manual

The Swoole\Exception class

(PHP 5 >= 5.2.0, PHP 7, PECL swoole >= 1.9.0)

Introduction

Class synopsis

Swoole\Exception extends Exception implements Throwable {
/* Inherited properties */
protected string $message ;
protected int $code ;
protected string $file ;
protected int $line ;
}

Swoole
PHP Manual