trait ExtensionTrait

trait ExtensionTrait {
    private function executeConfiguratorCallback(ContainerBuilder $container, \Closure $callback, ConfigurableExtensionInterface $subject, bool $prepend = false) : void {
        $env = $container->getParameter('kernel.environment');
        $loader = $this->createContainerLoader($container, $env, $prepend);
        $file = (new \ReflectionObject($subject))->getFileName();
        $bundleLoader = $loader->getResolver()
            ->resolve($file);
        if (!$bundleLoader instanceof PhpFileLoader) {
            throw new \LogicException('Unable to create the ContainerConfigurator.');
        }
        $bundleLoader->setCurrentDir(\dirname($file));
        $instanceof =& \Closure::bind(fn&() => $this->instanceof, $bundleLoader, $bundleLoader)();
        try {
            $callback(new ContainerConfigurator($container, $bundleLoader, $instanceof, $file, $file, $env));
        } finally {
            $instanceof = [];
            $bundleLoader->registerAliasesForSinglyImplementedInterfaces();
        }
    }
    private function createContainerLoader(ContainerBuilder $container, string $env, bool $prepend) : DelegatingLoader {
        $buildDir = $container->getParameter('kernel.build_dir');
        $locator = new FileLocator();
        $resolver = new LoaderResolver([
            new XmlFileLoader($container, $locator, $env, $prepend),
            new YamlFileLoader($container, $locator, $env, $prepend),
            new IniFileLoader($container, $locator, $env),
            new PhpFileLoader($container, $locator, $env, new ConfigBuilderGenerator($buildDir), $prepend),
            new GlobFileLoader($container, $locator, $env),
            new DirectoryLoader($container, $locator, $env),
            new ClosureLoader($container, $env),
        ]);
        return new DelegatingLoader($resolver);
    }

}