getNode example

protected function createNode(): NodeInterface
    {
        if (!isset($this->prototype)) {
            $node = new ArrayNode($this->name, $this->parent, $this->pathSeparator);

            $this->validateConcreteNode($node);

            $node->setAddIfNotSet($this->addDefaults);

            foreach ($this->children as $child) {
                $child->parent = $node;
                $node->addChild($child->getNode());
            }
        } else {
            $node = new PrototypedArrayNode($this->name, $this->parent, $this->pathSeparator);

            $this->validatePrototypeNode($node);

            if (null !== $this->key) {
                $node->setKeyAttribute($this->key, $this->removeKeyItem);
            }

            if (true === $this->atLeastOne || false === $this->allowEmptyValue) {
                

throw new SyntaxError('The "defined" test only works with simple variables.', $lineno);
        }

        parent::__construct($node, $name, $arguments, $lineno);
    }

    private function changeIgnoreStrictCheck(GetAttrExpression $node)
    {
        $node->setAttribute('optimizable', false);
        $node->setAttribute('ignore_strict_check', true);

        if ($node->getNode('node') instanceof GetAttrExpression) {
            $this->changeIgnoreStrictCheck($node->getNode('node'));
        }
    }

    public function compile(Compiler $compiler): void
    {
        $compiler->subcompile($this->getNode('node'));
    }
}

namespace Twig\Node\Expression\Binary;

use Twig\Compiler;

class InBinary extends AbstractBinary
{
    public function compile(Compiler $compiler): void
    {
        $compiler
            ->raw('twig_in_filter(')
            ->subcompile($this->getNode('left'))
            ->raw(', ')
            ->subcompile($this->getNode('right'))
            ->raw(')')
        ;
    }

    public function operator(Compiler $compiler): Compiler
    {
        return $compiler->raw('in');
    }
}

    private function optimizePrintNode(Node $node, Environment $env): Node
    {
        if (!$node instanceof PrintNode) {
            return $node;
        }

        $exprNode = $node->getNode('expr');
        if (
            $exprNode instanceof BlockReferenceExpression ||
            $exprNode instanceof ParentExpression
        ) {
            $exprNode->setAttribute('output', true);

            return $exprNode;
        }

        return $node;
    }

    

if ($node instanceof NameExpression) {
            $node->setAttribute('always_defined', true);
        }
    }

    public function compile(Compiler $compiler): void
    {
        if ($this->getAttribute('is_defined_test')) {
            $compiler
                ->raw('method_exists($macros[')
                ->repr($this->getNode('node')->getAttribute('name'))
                ->raw('], ')
                ->repr($this->getAttribute('method'))
                ->raw(')')
            ;

            return;
        }

        $compiler
            ->raw('twig_call_macro($macros[')
            ->repr($this->getNode('node')->getAttribute('name'))
            

    public function compile(Compiler $compiler): void
    {
        if (\PHP_VERSION_ID >= 80000) {
            parent::compile($compiler);

            return;
        }

        $compiler
            ->raw('(0 !== twig_compare(')
            ->subcompile($this->getNode('left'))
            ->raw(', ')
            ->subcompile($this->getNode('right'))
            ->raw('))')
        ;
    }

    public function operator(Compiler $compiler): Compiler
    {
        return $compiler->raw('!=');
    }
}

class OddTest extends TestExpression
{
    public function compile(Compiler $compiler): void
    {
        $compiler
            ->raw('(')
            ->subcompile($this->getNode('node'))
            ->raw(' % 2 != 0')
            ->raw(')')
        ;
    }
}

class DefaultFilter extends FilterExpression
{
    public function __construct(Node $node, ConstantExpression $filterName, Node $arguments, int $lineno, string $tag = null)
    {
        $default = new FilterExpression($node, new ConstantExpression('default', $node->getTemplateLine()), $arguments, $node->getTemplateLine());

        if ('default' === $filterName->getAttribute('value') && ($node instanceof NameExpression || $node instanceof GetAttrExpression)) {
            $test = new DefinedTest(clone $node, 'defined', new Node(), $node->getTemplateLine());
            $false = \count($arguments) ? $arguments->getNode(0) : new ConstantExpression('', $node->getTemplateLine());

            $node = new ConditionalExpression($test, $default, $false, $node->getTemplateLine());
        } else {
            $node = $default;
        }

        parent::__construct($node, $filterName, $arguments, $lineno, $tag);
    }

    public function compile(Compiler $compiler): void
    {
        

final class RenderBlockNode extends FunctionExpression
{
    public function compile(Compiler $compiler): void
    {
        $compiler->addDebugInfo($this);
        $arguments = iterator_to_array($this->getNode('arguments'));
        $compiler->write('$this->env->getRuntime(\'Symfony\Component\Form\FormRenderer\')->renderBlock(');

        if (isset($arguments[0])) {
            $compiler->subcompile($arguments[0]);
            $compiler->raw(', \''.$this->getAttribute('name').'\'');

            if (isset($arguments[1])) {
                $compiler->raw(', ');
                $compiler->subcompile($arguments[1]);
            }
        }

        

namespace Twig\Node\Expression\Binary;

use Twig\Compiler;

class HasEveryBinary extends AbstractBinary
{
    public function compile(Compiler $compiler): void
    {
        $compiler
            ->raw('twig_array_every($this->env, ')
            ->subcompile($this->getNode('left'))
            ->raw(', ')
            ->subcompile($this->getNode('right'))
            ->raw(')')
        ;
    }

    public function operator(Compiler $compiler): Compiler
    {
        return $compiler->raw('');
    }
}

class EvenTest extends TestExpression
{
    public function compile(Compiler $compiler): void
    {
        $compiler
            ->raw('(')
            ->subcompile($this->getNode('node'))
            ->raw(' % 2 == 0')
            ->raw(')')
        ;
    }
}

foreach ($locator->getArgument(0) as $k => $v) {
                if ($v->getValues()[0] === $value) {
                    if ($k !== $id) {
                        $currentId = $k.'" in the container provided to "'.$currentId;
                    }
                    throw new ServiceNotFoundException($id, $currentId, null, $this->getAlternatives($id));
                }
            }
        }

        if ('.' === $currentId[0] && $graph->hasNode($currentId)) {
            foreach ($graph->getNode($currentId)->getInEdges() as $edge) {
                if (!$edge->getValue() instanceof Reference || ContainerInterface::EXCEPTION_ON_INVALID_REFERENCE < $edge->getValue()->getInvalidBehavior()) {
                    continue;
                }
                $sourceId = $edge->getSourceNode()->getId();

                if ('.' !== $sourceId[0]) {
                    $currentId = $sourceId;
                    break;
                }
            }
        }

        

        }
    }

    private function compileTemplateCall(Compiler $compiler, string $method): Compiler
    {
        if (!$this->hasNode('template')) {
            $compiler->write('$this');
        } else {
            $compiler
                ->write('$this->loadTemplate(')
                ->subcompile($this->getNode('template'))
                ->raw(', ')
                ->repr($this->getTemplateName())
                ->raw(', ')
                ->repr($this->getTemplateLine())
                ->raw(')')
            ;
        }

        $compiler->raw(sprintf('->%s', $method));

        return $this->compileBlockArguments($compiler);
    }

public function testConstructor()
    {
        $form = new NameExpression('form', 0);
        $resources = new Node([
            new ConstantExpression('tpl1', 0),
            new ConstantExpression('tpl2', 0),
        ]);

        $node = new FormThemeNode($form, $resources, 0);

        $this->assertEquals($form, $node->getNode('form'));
        $this->assertEquals($resources, $node->getNode('resources'));
        $this->assertFalse($node->getAttribute('only'));
    }

    public function testCompile()
    {
        $form = new NameExpression('form', 0);
        $resources = new ArrayExpression([
            new ConstantExpression(1, 0),
            new ConstantExpression('tpl1', 0),
            new ConstantExpression(0, 0),
            

$this->addGetTemplate($compiler);
            $compiler->raw('->display(');
            $this->addTemplateArguments($compiler);
            $compiler->raw(");\n");
        }
    }

    protected function addGetTemplate(Compiler $compiler)
    {
        $compiler
            ->write('$this->loadTemplate(')
            ->subcompile($this->getNode('expr'))
            ->raw(', ')
            ->repr($this->getTemplateName())
            ->raw(', ')
            ->repr($this->getTemplateLine())
            ->raw(')')
        ;
    }

    protected function addTemplateArguments(Compiler $compiler)
    {
        if (!$this->hasNode('variables')) {