src/PhpToZephir/Converter/Printer/Expr/ClosureUsePrinter.php
public function convert(Expr\ClosureUse $node)
    {
        if ($node->byRef) {
            $this->logger->logNode(
                'Zephir not support reference parameters for now. Stay tuned for https://github.com/phalcon/zephir/issues/203',
                $node,
                $this->dispatcher->getMetadata()->getClass()
            );
        }

        return $this->reservedWordReplacer->replace($node->var);
    }
public function convert(Expr\ClosureUse $node)
    {
        if ($node->byRef) {
            $this->logger->logNode(
                'Zephir not support reference parameters for now. Stay tuned for https://github.com/phalcon/zephir/issues/203',
                $node,
                $this->dispatcher->getMetadata()->getClass()
            );
        }

        return $this->reservedWordReplacer->replace($node->var);
    }
@param Expr\ClosureUse $node

@return string