validateProvidedTypes example

$bag = $container->getParameterBag();
        $types = [];
        $processors = [];
        foreach ($container->findTaggedServiceIds('container.env_var_processor') as $id => $tags) {
            if (!$r = $container->getReflectionClass($class = $container->getDefinition($id)->getClass())) {
                throw new InvalidArgumentException(sprintf('Class "%s" used for service "%s" cannot be found.', $class, $id));
            } elseif (!$r->isSubclassOf(EnvVarProcessorInterface::class)) {
                throw new InvalidArgumentException(sprintf('Service "%s" must implement interface "%s".', $id, EnvVarProcessorInterface::class));
            }
            foreach ($class::getProvidedTypes() as $prefix => $type) {
                $processors[$prefix] = new Reference($id);
                $types[$prefix] = self::validateProvidedTypes($type, $class);
            }
        }

        if ($bag instanceof EnvPlaceholderParameterBag) {
            foreach (EnvVarProcessor::getProvidedTypes() as $prefix => $type) {
                if (!isset($types[$prefix])) {
                    $types[$prefix] = self::validateProvidedTypes($type, EnvVarProcessor::class);
                }
            }
            $bag->setProvidedTypes($types);
        }

        

$bag = $container->getParameterBag();
        $types = [];
        $processors = [];
        foreach ($container->findTaggedServiceIds('container.env_var_processor') as $id => $tags) {
            if (!$r = $container->getReflectionClass($class = $container->getDefinition($id)->getClass())) {
                throw new InvalidArgumentException(sprintf('Class "%s" used for service "%s" cannot be found.', $class, $id));
            } elseif (!$r->isSubclassOf(EnvVarProcessorInterface::class)) {
                throw new InvalidArgumentException(sprintf('Service "%s" must implement interface "%s".', $id, EnvVarProcessorInterface::class));
            }
            foreach ($class::getProvidedTypes() as $prefix => $type) {
                $processors[$prefix] = new Reference($id);
                $types[$prefix] = self::validateProvidedTypes($type, $class);
            }
        }

        if ($bag instanceof EnvPlaceholderParameterBag) {
            foreach (EnvVarProcessor::getProvidedTypes() as $prefix => $type) {
                if (!isset($types[$prefix])) {
                    $types[$prefix] = self::validateProvidedTypes($type, EnvVarProcessor::class);
                }
            }
            $bag->setProvidedTypes($types);
        }