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<?php |
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declare(strict_types=1); |
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namespace Yiisoft\Di; |
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use Psr\Container\ContainerInterface; |
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use Yiisoft\Definitions\Contract\DefinitionInterface; |
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use Yiisoft\Di\Helpers\DefinitionNormalizer; |
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/** |
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* @internal A wrapper for a service definition that allows registering extensions. |
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* An extension is a callable that returns a modified service object: |
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* |
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* ```php |
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* static function (ContainerInterface $container, $service) { |
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* return $service->withAnotherOption(42); |
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* } |
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* ``` |
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*/ |
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final class ExtensibleService implements DefinitionInterface |
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{ |
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/** |
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* @var mixed |
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*/ |
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private $definition; |
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private string $id; |
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/** |
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* @var callable[] |
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*/ |
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private array $extensions = []; |
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/** |
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* @param mixed $definition Definition to allow registering extensions for. |
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*/ |
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public function __construct($definition, string $id) |
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{ |
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$this->definition = $definition; |
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$this->id = $id; |
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} |
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/** |
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* Add an extension. |
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* |
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* An extension is a callable that returns a modified service object: |
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* |
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* ```php |
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* static function (ContainerInterface $container, $service) { |
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* return $service->withAnotherOption(42); |
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* } |
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* ``` |
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* |
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* @param callable $closure An extension to register. |
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*/ |
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public function addExtension(callable $closure): void |
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{ |
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$this->extensions[] = $closure; |
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} |
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6 |
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public function resolve(ContainerInterface $container) |
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{ |
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/** @var mixed $service */ |
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6 |
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$service = DefinitionNormalizer::normalize($this->definition, $this->id) |
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6 |
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->resolve($container); |
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6 |
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foreach ($this->extensions as $extension) { |
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/** @var mixed $result */ |
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6 |
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$result = $extension($container->get(ContainerInterface::class), $service); |
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6 |
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if ($result === null) { |
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1 |
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continue; |
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} |
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/** @var mixed $service */ |
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6 |
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$service = $result; |
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} |
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return $service; |
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} |
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} |
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yiisoft /
di
