{% import '_lib/di.twig' as di %}
<?php

namespace Drupal\{{ machine_name }};

{% sort %}
use Twig\Extension\AbstractExtension;
use Twig\TwigFilter;
use Twig\TwigFunction;
use Twig\TwigTest;
  {% if services %}
{{ di.use(services) }}
  {% endif %}
{% endsort %}

/**
 * Twig extension.
 */
class {{ class }} extends AbstractExtension {

{% if services %}
{{ di.properties(services) }}

  /**
   * Constructs a new {{ class }} object.
   *
{{ di.annotation(services) }}
   */
  public function __construct({{ di.signature(services) }}) {
{{ di.assignment(services) }}
  }

{% endif %}
  /**
   * {@inheritdoc}
   */
  public function getFunctions() {
    return [
      new TwigFunction('foo', function ($argument = NULL) {
        return 'Foo: ' . $argument;
      }),
    ];
  }

  /**
   * {@inheritdoc}
   */
  public function getFilters() {
    return [
      new TwigFilter('bar', function ($text) {
        return str_replace('bar', 'BAR', $text);
      }),
    ];
  }

  /**
   * {@inheritdoc}
   */
  public function getTests() {
    return [
      new TwigTest('color', function ($text) {
        return preg_match('/^#(?:[0-9a-f]{3}){1,2}$/i', $text);
      }),
    ];
  }

}