Jade\Compiler\ExpressionCompiler::getArgumentExpression PHP Метод

    public function getArgumentExpression($arg)
    {
        if ($this->getExpressionLanguage() === Jade::EXP_JS) {
            return $this->getPhpCodeFromJs(array($arg));
        }
        $arg = static::convertVarPath($arg);
        // add dollar if missing
        return preg_match('/^' . static::VARNAME . '(\\s*,.+)?$/', $arg) ? static::addDollarIfNeeded($arg) : $arg;
    }