AndBinary example

use Twig\Node\Expression\Test\NullTest;
use Twig\Node\Expression\Unary\NotUnary;
use Twig\Node\Node;

class NullCoalesceExpression extends ConditionalExpression
{
    public function __construct(Node $left, Node $right, int $lineno)
    {
        $test = new DefinedTest(clone $left, 'defined', new Node(), $left->getTemplateLine());
        // for "block()", we don't need the null test as the return value is always a string         if (!$left instanceof BlockReferenceExpression) {
            $test = new AndBinary(
                $test,
                new NotUnary(new NullTest($left, 'null', new Node(), $left->getTemplateLine()), $left->getTemplateLine()),
                $left->getTemplateLine()
            );
        }

        parent::__construct($test, $left, $right, $lineno);
    }

    public function compile(Compiler $compiler): void
    {