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<?php |
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declare(strict_types=1); |
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/* |
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* This file is part of DivineNii opensource projects. |
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* |
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* PHP version 7.4 and above required |
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* |
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* @author Divine Niiquaye Ibok <[email protected]> |
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* @copyright 2021 DivineNii (https://divinenii.com/) |
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* @license https://opensource.org/licenses/BSD-3-Clause License |
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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 Rade\DI; |
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use Psr\Container\ContainerInterface; |
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use Rade\DI\Exceptions\{ContainerResolutionException, NotFoundServiceException}; |
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use Symfony\Contracts\Service\ResetInterface; |
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/** |
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* A container supporting multiple PSR-11 containers. |
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* |
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* @author Divine Niiquaye Ibok <[email protected]> |
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*/ |
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final class ContextContainer implements ContainerInterface, ResetInterface |
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{ |
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/** @var ContainerInterface[] A list of PSR-11 containers */ |
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private array $containers = []; |
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/** |
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* {@inheritdoc} |
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*/ |
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public function get(string $id) |
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{ |
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if (\in_array($id, [ContainerInterface::class, __CLASS__, AbstractContainer::SERVICE_CONTAINER], true)) { |
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return $this; |
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} |
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foreach ($this->containers as $container) { |
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if ($container->has($id)) { |
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return $container->get($id); |
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} |
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if ($container instanceof Container && $container->typed($id)) { |
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try { |
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return $container->autowired($id, true); |
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} catch (ContainerResolutionException $e) { |
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// Skip this exception. |
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} |
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} |
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} |
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throw new NotFoundServiceException(\sprintf('Requested service "%s" was not found in any container. Did you forget to set it?', $id)); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function has(string $id): bool |
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{ |
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foreach ($this->containers as $container) { |
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if ($container->has($id)) { |
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return true; |
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} |
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} |
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return false; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function reset(): void |
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{ |
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// A container such as Symfony DI support reset ... |
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foreach ($this->containers as $container) { |
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if ($container instanceof ResetInterface) { |
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$container->reset(); |
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} |
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} |
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$this->containers = []; |
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} |
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/** |
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* Attaches a container to the composite container. |
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*/ |
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public function attach(ContainerInterface $container): void |
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{ |
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$this->containers[] = $container; |
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} |
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/** |
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* Removes a container from the list of containers. |
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*/ |
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public function detach(ContainerInterface $container): void |
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{ |
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foreach ($this->containers as $i => $c) { |
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if ($container === $c) { |
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unset($this->containers[$i]); |
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break; |
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} |
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} |
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} |
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} |
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divineniiquaye /
rade-di
Let?s assume that you have a directory layout like this:
. |-- OtherDir | |-- Bar.php | `-- Foo.php `-- SomeDir `-- Foo.phpand let?s assume the following content of
Bar.php:If both files
OtherDir/Foo.phpandSomeDir/Foo.phpare loaded in the same runtime, you will see a PHP error such as the following:PHP Fatal error: Cannot use SomeDir\Foo as Foo because the name is already in use in OtherDir/Foo.phpHowever, as
OtherDir/Foo.phpdoes not necessarily have to be loaded and the error is only triggered if it is loaded beforeOtherDir/Bar.php, this problem might go unnoticed for a while. In order to prevent this error from surfacing, you must import the namespace with a different alias: