PhpCsFixer\Console\ConfigurationResolver::isStdIn PHP 메소드

    private function isStdIn()
    {
        if (null === $this->isStdIn) {
            $this->isStdIn = 1 === count($this->options['path']) && '-' === $this->options['path'][0];
        }
        return $this->isStdIn;
    }