Symfony Twig Closure Extension

ClosureExtension.php

<?php
declare(strict_types=1);

namespace AppBundle\Extension;

use Twig\Extension\AbstractExtension;
use Twig\TwigFunction;

class ClosureExtension extends AbstractExtension
{
    public function getFunctions()
    {
        return [
            new TwigFunction('closure', [$this, 'executeClosure'])
        ];
    }

    public function executeClosure(\Closure $closure, $arguments)
    {
        return $closure(...$arguments);
    }

    public function getName(): string
    {
        return 'closure_twig_extension';
    }
}

services.yml

    AppBundle\Extension\ClosureExtension:
        public: false
        tags:
            - { name: twig.extension }

template.twig

closure(<closure>, [<parameters>])