woocommerce/lib/packages/League/Container/ServiceProvider/ServiceProviderAggregate.php

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<?php declare(strict_types=1);
namespace Automattic\WooCommerce\Vendor\League\Container\ServiceProvider;
use Generator;
use Automattic\WooCommerce\Vendor\League\Container\{ContainerAwareInterface, ContainerAwareTrait};
use Automattic\WooCommerce\Vendor\League\Container\Exception\ContainerException;
class ServiceProviderAggregate implements ServiceProviderAggregateInterface
{
use ContainerAwareTrait;
/**
* @var ServiceProviderInterface[]
*/
protected $providers = [];
/**
* @var array
*/
protected $registered = [];
/**
* {@inheritdoc}
*/
public function add($provider) : ServiceProviderAggregateInterface
{
if (is_string($provider) && $this->getContainer()->has($provider)) {
$provider = $this->getContainer()->get($provider);
} elseif (is_string($provider) && class_exists($provider)) {
$provider = new $provider;
}
if (in_array($provider, $this->providers, true)) {
return $this;
}
if ($provider instanceof ContainerAwareInterface) {
$provider->setLeagueContainer($this->getLeagueContainer());
}
if ($provider instanceof BootableServiceProviderInterface) {
$provider->boot();
}
if ($provider instanceof ServiceProviderInterface) {
$this->providers[] = $provider;
return $this;
}
throw new ContainerException(
'A service provider must be a fully qualified class name or instance ' .
'of (\Automattic\WooCommerce\Vendor\League\Container\ServiceProvider\ServiceProviderInterface)'
);
}
/**
* {@inheritdoc}
*/
public function provides(string $service) : bool
{
foreach ($this->getIterator() as $provider) {
if ($provider->provides($service)) {
return true;
}
}
return false;
}
/**
* {@inheritdoc}
*/
public function getIterator() : Generator
{
$count = count($this->providers);
for ($i = 0; $i < $count; $i++) {
yield $this->providers[$i];
}
}
/**
* {@inheritdoc}
*/
public function register(string $service)
{
if (false === $this->provides($service)) {
throw new ContainerException(
sprintf('(%s) is not provided by a service provider', $service)
);
}
foreach ($this->getIterator() as $provider) {
if (in_array($provider->getIdentifier(), $this->registered, true)) {
continue;
}
if ($provider->provides($service)) {
$provider->register();
$this->registered[] = $provider->getIdentifier();
}
}
}
}