private function compileBinaryOp(Node\BinaryOp\AbstractBinaryOp $node, InputData $inputData)
{
$left = $this->compileNode($node->getLeft(), $inputData);
$right = $this->compileNode($node->getRight(), $inputData);

switch (get_class($node)) {
    case Node\BinaryOp\Equals::class:
        return $left == $right;
    case Node\BinaryOp\NotEquals::class:
        return $left != $right;
    case Node\BinaryOp\BooleanAnd::class:
        return $left && $right;
    case Node\BinaryOp\BooleanOr::class:
        return $left || $right;
    case Node\BinaryOp\GreaterThan::class:
        return $left > $right;
    case Node\BinaryOp\GreaterThanOrEqual::class:
        return $left >= $right;
    case Node\BinaryOp\LessThan::class:
        return $left < $right;
    case Node\BinaryOp\LessThanOrEqual::class:
        return $left <= $right;
    case Node\BinaryOp\In::class:
        return in_array($left, $right);
    case Node\BinaryOp\NotIn::class:
        return !in_array($left, $right);
    default:
        throw UnknownNodeType::fromNode($node);
}

}