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<?php |
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declare(strict_types=1); |
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namespace Gacela\Container; |
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use Closure; |
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use Gacela\Container\Exception\ContainerException; |
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use SplObjectStorage; |
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use function count; |
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use function is_array; |
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use function is_callable; |
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use function is_object; |
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/** |
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* Manages factory instances, protected closures, and service extensions. |
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*/ |
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final class FactoryManager |
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{ |
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/** @var SplObjectStorage<Closure, mixed> */ |
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private SplObjectStorage $factoryInstances; |
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/** @var SplObjectStorage<Closure, mixed> */ |
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private SplObjectStorage $protectedInstances; |
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private ?string $currentlyExtending = null; |
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/** |
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* @param array<string, list<Closure>> $instancesToExtend |
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*/ |
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public function __construct( |
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private array $instancesToExtend = [], |
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) { |
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$this->factoryInstances = new SplObjectStorage(); |
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$this->protectedInstances = new SplObjectStorage(); |
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} |
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/** |
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* Mark a closure as a factory (always creates new instances). |
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*/ |
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public function markAsFactory(Closure $instance): void |
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{ |
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$this->factoryInstances->attach($instance); |
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} |
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/** |
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* Mark a closure as protected (won't be invoked by container). |
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*/ |
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public function markAsProtected(Closure $instance): void |
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{ |
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$this->protectedInstances->attach($instance); |
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} |
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/** |
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* Check if an instance is marked as a factory. |
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*/ |
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public function isFactory(mixed $instance): bool |
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{ |
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return $instance instanceof Closure && isset($this->factoryInstances[$instance]); |
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} |
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/** |
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* Check if an instance is protected. |
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*/ |
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public function isProtected(mixed $instance): bool |
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{ |
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return $instance instanceof Closure && isset($this->protectedInstances[$instance]); |
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} |
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/** |
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* Schedule an extension to be applied when the service is set. |
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*/ |
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public function scheduleExtension(string $id, Closure $instance): void |
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{ |
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$this->instancesToExtend[$id][] = $instance; |
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} |
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/** |
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* Check if there are pending extensions for a service. |
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*/ |
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public function hasPendingExtensions(string $id): bool |
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{ |
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return isset($this->instancesToExtend[$id]) && count($this->instancesToExtend[$id]) > 0; |
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} |
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/** |
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* Get pending extensions for a service. |
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* |
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* @return list<Closure> |
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*/ |
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public function getPendingExtensions(string $id): array |
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{ |
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return $this->instancesToExtend[$id] ?? []; |
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} |
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/** |
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* Clear pending extensions for a service. |
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*/ |
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public function clearPendingExtensions(string $id): void |
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{ |
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unset($this->instancesToExtend[$id]); |
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} |
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/** |
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* Set the service ID currently being extended. |
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*/ |
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public function setCurrentlyExtending(?string $id): void |
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{ |
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$this->currentlyExtending = $id; |
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} |
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/** |
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* Check if we're currently extending a specific service. |
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*/ |
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public function isCurrentlyExtending(string $id): bool |
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{ |
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return $this->currentlyExtending === $id; |
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} |
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/** |
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* Transfer factory status from one instance to another. |
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* Used when extending a factory service. |
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*/ |
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public function transferFactoryStatus(mixed $from, mixed $to): void |
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{ |
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if ($from instanceof Closure && isset($this->factoryInstances[$from])) { |
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$this->factoryInstances->detach($from); |
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if ($to instanceof Closure) { |
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$this->factoryInstances->attach($to); |
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} |
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} |
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} |
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/** |
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* Generate an extended instance wrapper. |
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* |
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* @psalm-suppress MissingClosureReturnType,MixedAssignment |
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*/ |
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public function generateExtendedInstance(Closure $instance, mixed $factory, Container $container): Closure |
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{ |
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if (is_callable($factory)) { |
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return static function (Container $c) use ($instance, $factory) { |
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$result = $factory($c); |
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return $instance($result, $c) ?? $result; |
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}; |
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} |
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if (is_object($factory) || is_array($factory)) { |
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return static fn (Container $c) => $instance($factory, $c) ?? $factory; |
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} |
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1 |
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throw ContainerException::instanceNotExtendable(); |
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} |
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} |
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gacela-project /
container
This check looks for parameters that have been defined for a function or method, but which are not used in the method body.