Subversion-Projekte lars-tiefland.laravel_shop

<?php

/*

 * This file is part of the Symfony package.

 *

 * (c) Fabien Potencier <fabien@symfony.com>

 *

 * For the full copyright and license information, please view the LICENSE

 * file that was distributed with this source code.

 */

namespace Symfony\Contracts\Service;

use Psr\Container\ContainerInterface;

use Symfony\Contracts\Service\Attribute\Required;

use Symfony\Contracts\Service\Attribute\SubscribedService;

/**

 * Implementation of ServiceSubscriberInterface that determines subscribed services from

 * method return types. Service ids are available as "ClassName::methodName".

 *

 * @author Kevin Bond <kevinbond@gmail.com>

 */

trait ServiceSubscriberTrait

{

    /** @var ContainerInterface */

    protected $container;

    public static function getSubscribedServices(): array

    {

        $services = method_exists(get_parent_class(self::class) ?: '', __FUNCTION__) ? parent::getSubscribedServices() : [];

        foreach ((new \ReflectionClass(self::class))->getMethods() as $method) {

            if (self::class !== $method->getDeclaringClass()->name) {

                continue;

            }

            if (!$attribute = $method->getAttributes(SubscribedService::class)[0] ?? null) {

                continue;

            }

            if ($method->isStatic() || $method->isAbstract() || $method->isGenerator() || $method->isInternal() || $method->getNumberOfRequiredParameters()) {

                throw new \LogicException(sprintf('Cannot use "%s" on method "%s::%s()" (can only be used on non-static, non-abstract methods with no parameters).', SubscribedService::class, self::class, $method->name));

            }

            if (!$returnType = $method->getReturnType()) {

                throw new \LogicException(sprintf('Cannot use "%s" on methods without a return type in "%s::%s()".', SubscribedService::class, $method->name, self::class));

            }

            /* @var SubscribedService $attribute */

            $attribute = $attribute->newInstance();

            $attribute->key ??= self::class.'::'.$method->name;

            $attribute->type ??= $returnType instanceof \ReflectionNamedType ? $returnType->getName() : (string) $returnType;

            $attribute->nullable = $returnType->allowsNull();

            if ($attribute->attributes) {

                $services[] = $attribute;

            } else {

                $services[$attribute->key] = ($attribute->nullable ? '?' : '').$attribute->type;

            }

        }

        return $services;

    }

    #[Required]

    public function setContainer(ContainerInterface $container): ?ContainerInterface

    {

        $ret = null;

        if (method_exists(get_parent_class(self::class) ?: '', __FUNCTION__)) {

            $ret = parent::setContainer($container);

        }

        $this->container = $container;

        return $ret;

    }

}