private function reload(Shell $shell)
    {
        \clearstatcache();
        $modified = [];

        foreach (\get_included_files() as $file) {
            $timestamp = \filemtime($file);

            if (!isset($this->timestamps[$file])) {
                $this->timestamps[$file] = $timestamp;
                continue;
            }

            if ($this->timestamps[$file] === $timestamp) {
                continue;
            }

            if (!$this->lintFile($file)) {
                $msg = \sprintf('Modified file "%s" could not be reloaded', $file);
                $shell->writeException(new ParseErrorException($msg));
                continue;
            }

            $modified[] = $file;
            $this->timestamps[$file] = $timestamp;
        }

        // switch (count($modified)) {
        //     case 0:
        //         return;

        //     case 1:
        //         printf("Reloading modified file: \"%s\"\n", str_replace(getcwd(), '.', $file));
        //         break;

        //     default:
        //         printf("Reloading %d modified files\n", count($modified));
        //         break;
        // }

        foreach ($modified as $file) {
            runkit_import($file, (
                RUNKIT_IMPORT_FUNCTIONS |
                RUNKIT_IMPORT_CLASSES |
                RUNKIT_IMPORT_CLASS_METHODS |
                RUNKIT_IMPORT_CLASS_CONSTS |
                RUNKIT_IMPORT_CLASS_PROPS |
                RUNKIT_IMPORT_OVERRIDE
            ));
        }
    }