Issue #3375843 by lussoluca, e0ipso, smustgrave, DieterHolvoet: Allow other...

      new Node([new ConstantExpression($component_id, $line)]),

      $line

    ), $line);

    foreach ($print_nodes as $index => $print_node) {

      $node->getNode('display_start')->setNode((string) $index, $print_node);

    }

    // Append the print nodes to the display_start node.

    $node->setNode(

      'display_start',

      new Node([

        $node->getNode('display_start'),

        ...$print_nodes,

      ]),

    );

    if ($env->isDebug()) {

      $node->getNode('display_end')

        ->setNode(

          '0',

          new PrintNode(new ConstantExpression(sprintf('<!-- %s Component end: %s -->', $emoji, $component_id), $line), $line)

      // Append the closing comment to the display_end node.

      $node->setNode(

        'display_end',

        new Node([

          new PrintNode(new ConstantExpression(sprintf('<!-- %s Component end: %s -->', $emoji, $component_id), $line), $line),

          $node->getNode('display_end'),

        ])

      );

    }

    // Slots can be validated at compile time, we don't need to add nodes to

name: 'Add another node visitor'

type: module

dependencies:

  - sdc:sdc

package: Testing

services:

  sdc_other_node_visitor.twig.extension.profiler:

    class: Drupal\sdc_other_node_visitor\Twig\Extension\TestProfilerExtension

    tags:

      - { name: twig.extension, priority: 100 }

<?php

namespace Drupal\sdc_other_node_visitor\Twig\Extension;

use Drupal\sdc_other_node_visitor\Twig\NodeVisitor\TestNodeVisitor;

use Twig\Extension\AbstractExtension;

/**

 * Twig extension to add a test node visitor.

 */

class TestProfilerExtension extends AbstractExtension {

  /**

   * {@inheritdoc}

   */

  public function getNodeVisitors(): array {

    return [new TestNodeVisitor(static::class)];

  }

  /**

   * Dummy function called when a Twig template is entered.

   */

  public function enter() {

    // NOOP.

  }

  /**

   * Dummy function called when a Twig template is left.

   */

  public function leave() {

    // NOOP.

  }

}

<?php

namespace Drupal\sdc_other_node_visitor\Twig\NodeVisitor;

use Drupal\sdc_other_node_visitor\Twig\Profiler\EnterProfileNode;

use Drupal\sdc_other_node_visitor\Twig\Profiler\LeaveProfileNode;

use Twig\Environment;

use Twig\Node\ModuleNode;

use Twig\Node\Node;

use Twig\NodeVisitor\NodeVisitorInterface;

/**

 * A node visitor that adds nodes to the Twig template.

 *

 * Most of this code is copied from

 * Twig\Profiler\NodeVisitor\ProfilerNodeVisitor.

 */

final class TestNodeVisitor implements NodeVisitorInterface {

  private string $extensionName;

  private string $varName;

  /**

   * TestNodeVisitor constructor.

   *

   * @param string $extensionName

   *   The name of the extension.

   */

  public function __construct(string $extensionName) {

    $this->extensionName = $extensionName;

    $this->varName = sprintf('__internal_%s', hash(\PHP_VERSION_ID < 80100 ? 'sha256' : 'xxh128', $extensionName));

  }

  /**

   * {@inheritdoc}

   */

  public function enterNode(Node $node, Environment $env): Node {

    return $node;

  }

  /**

   * {@inheritdoc}

   */

  public function leaveNode(Node $node, Environment $env): ?Node {

    if ($node instanceof ModuleNode) {

      $node->setNode('display_start', new Node([

        new EnterProfileNode($this->extensionName, $this->varName),

        $node->getNode('display_start'),

      ]));

      $node->setNode('display_end', new Node([

        new LeaveProfileNode($this->varName),

        $node->getNode('display_end'),

      ]));

    }

    return $node;

  }

  /**

   * {@inheritdoc}

   */

  public function getPriority(): int {

    return 0;

  }

}