Autowire ServiceLocator with iterable of tagged services #39924

class MyService
{
    public function __construct(
        #[Tagged(name: 'form.type')] private ServiceLocator $tagged
    ) {}
    
    /**
    * @param class-string<FormTypeInterface> $className
    */
    public function get(string $className): FormTypeInterface
    {
        return $this->tagged->get($className);
    }
}

$formType = $myService->get(EntityType::class);

interface ExporterInterface
{
    public static function getName(): string;
}

class CSVExporter implements ExporterInterface
{   
    public static function getName(): string
    {
        return 'csv_exporter';
    }
}

class MyService
{
    public function __construct(
        #[Tagged(name: 'app.exporter', indexMethod: 'getName')] private ServiceLocator $tagged
    ) {}
    
    public function get(string $name): ExporterInterface
    {
        return $this->tagged->get($name);
    }
}

$exporter = $myService->get('csv_exporter'); // this would be instance of CSVExporter

/** 
 * @template T
 */
class ServiceLocator
{
    /** @return T */
    public function get($id){}
}