62 lines
1.7 KiB
PHP
62 lines
1.7 KiB
PHP
<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Contracts\Service;
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use Psr\Container\ContainerInterface;
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/**
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* Implementation of ServiceSubscriberInterface that determines subscribed services from
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* private method return types. Service ids are available as "ClassName::methodName".
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*
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* @author Kevin Bond <kevinbond@gmail.com>
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*/
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trait ServiceSubscriberTrait
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{
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/** @var ContainerInterface */
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private $container;
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public static function getSubscribedServices(): array
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{
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static $services;
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if (null !== $services) {
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return $services;
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}
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$services = \is_callable(array('parent', __FUNCTION__)) ? parent::getSubscribedServices() : array();
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foreach ((new \ReflectionClass(self::class))->getMethods() as $method) {
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if ($method->isStatic() || $method->isAbstract() || $method->isGenerator() || $method->isInternal() || $method->getNumberOfRequiredParameters()) {
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continue;
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}
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if (self::class === $method->getDeclaringClass()->name && ($returnType = $method->getReturnType()) && !$returnType->isBuiltin()) {
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$services[self::class.'::'.$method->name] = '?'.$returnType->getName();
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}
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}
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return $services;
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}
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/**
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* @required
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*/
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public function setContainer(ContainerInterface $container)
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{
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$this->container = $container;
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if (\is_callable(array('parent', __FUNCTION__))) {
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return parent::setContainer($container);
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}
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}
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}
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