Symfony\Component\VarDumper\Caster\ExceptionCaster::filterExceptionArray PHP Метод

    private static function filterExceptionArray($xClass, array $a, $xPrefix, $filter)
    {
        if (isset($a[$xPrefix . 'trace'])) {
            $trace = $a[$xPrefix . 'trace'];
            unset($a[$xPrefix . 'trace']);
            // Ensures the trace is always last
        } else {
            $trace = array();
        }
        if (!($filter & Caster::EXCLUDE_VERBOSE)) {
            self::traceUnshift($trace, $xClass, $a[Caster::PREFIX_PROTECTED . 'file'], $a[Caster::PREFIX_PROTECTED . 'line']);
            $a[$xPrefix . 'trace'] = new TraceStub($trace, self::$traceArgs);
        }
        if (empty($a[$xPrefix . 'previous'])) {
            unset($a[$xPrefix . 'previous']);
        }
        unset($a[$xPrefix . 'string'], $a[Caster::PREFIX_DYNAMIC . 'xdebug_message'], $a[Caster::PREFIX_DYNAMIC . '__destructorException']);
        $a[Caster::PREFIX_PROTECTED . 'file'] = new LinkStub($a[Caster::PREFIX_PROTECTED . 'file'], $a[Caster::PREFIX_PROTECTED . 'line']);
        return $a;
    }