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<?php
declare(strict_types=1);
namespace Laminas\Di;
use Psr\Container\ContainerInterface;
/**
* Default IoC container implementation.
*
* This is using the dependency injector to create instances.
*/
class DefaultContainer implements ContainerInterface
{
/**
* Dependency injector
*
* @var InjectorInterface
*/
protected $injector;
/**
* Registered services and cached values
*
* @var array<string, object>
*/
protected $services = [];
public function __construct(InjectorInterface $injector)
{
$this->injector = $injector;
$this->services[InjectorInterface::class] = $injector;
$this->services[ContainerInterface::class] = $this;
$this->services[$injector::class] = $injector;
$this->services[static::class] = $this;
}
/**
* Explicitly set a service
*
* @param string $name The name of the service retrievable by get()
* @param object $service The service instance
*/
public function setInstance(string $name, $service): self
{
$this->services[$name] = $service;
return $this;
}
/**
* Check if a service is available
*
* @see ContainerInterface::has()
*
* @param string $name
* @return bool
*/
public function has($name)
{
if (isset($this->services[$name])) {
return true;
}
return $this->injector->canCreate($name);
}
/**
* Retrieve a service
*
* Tests first if a service is registered, and, if so,
* returns it.
*
* If the service is not yet registered, it is attempted to be created via
* the dependency injector and then it is stored for further use.
*
* @see ContainerInterface::get()
*
* @param string $name
* @return object
*/
public function get($name)
{
if (! isset($this->services[$name])) {
$this->services[$name] = $this->injector->create($name);
}
return $this->services[$name];
}
}