public function processFileClasses(array $classes, string $file)
    {
        foreach ($classes as $name => $class) {
            if (is_null($class['docblock'])) {
                $this->errors[] = [
                    'type' => 'class',
                    'file' => $file,
                    'class' => $name,
                    'line' => $class['line'],
                ];
            }
        }
    }