instantiateController example

public function getController(Request $request): callable|false
    {
        if (!$controller = $request->attributes->get('_controller')) {
            $this->logger?->warning('Unable to look for the controller as the "_controller" parameter is missing.');

            return false;
        }

        if (\is_array($controller)) {
            if (isset($controller[0]) && \is_string($controller[0]) && isset($controller[1])) {
                try {
                    $controller[0] = $this->instantiateController($controller[0]);
                } catch (\Error|\LogicException $e) {
                    if (\is_callable($controller)) {
                        return $controller;
                    }

                    throw $e;
                }
            }

            if (!\is_callable($controller)) {
                throw new \InvalidArgumentException(sprintf('The controller for URI "%s" is not callable: ', $request->getPathInfo()).$this->getControllerError($controller));
            }

public function getController(Request $request): callable|false
    {
        if (!$controller = $request->attributes->get('_controller')) {
            $this->logger?->warning('Unable to look for the controller as the "_controller" parameter is missing.');

            return false;
        }

        if (\is_array($controller)) {
            if (isset($controller[0]) && \is_string($controller[0]) && isset($controller[1])) {
                try {
                    $controller[0] = $this->instantiateController($controller[0]);
                } catch (\Error|\LogicException $e) {
                    if (\is_callable($controller)) {
                        return $controller;
                    }

                    throw $e;
                }
            }

            if (!\is_callable($controller)) {
                throw new \InvalidArgumentException(sprintf('The controller for URI "%s" is not callable: ', $request->getPathInfo()).$this->getControllerError($controller));
            }

    protected function instantiateController(string $class): object
    {
        $class = ltrim($class, '\\');

        if ($this->container->has($class)) {
            return $this->container->get($class);
        }

        try {
            return parent::instantiateController($class);
        } catch (\Error $e) {
        }

        $this->throwExceptionIfControllerWasRemoved($class, $e);

        if ($e instanceof \ArgumentCountError) {
            throw new \InvalidArgumentException(sprintf('Controller "%s" has required constructor arguments and does not exist in the container. Did you forget to define the controller as a service?', $class), 0, $e);
        }

        throw new \InvalidArgumentException(sprintf('Controller "%s" does neither exist as service nor as class.', $class), 0, $e);
    }

    

    protected function instantiateController(string $class): object
    {
        $class = ltrim($class, '\\');

        if ($this->container->has($class)) {
            return $this->container->get($class);
        }

        try {
            return parent::instantiateController($class);
        } catch (\Error $e) {
        }

        $this->throwExceptionIfControllerWasRemoved($class, $e);

        if ($e instanceof \ArgumentCountError) {
            throw new \InvalidArgumentException(sprintf('Controller "%s" has required constructor arguments and does not exist in the container. Did you forget to define the controller as a service?', $class), 0, $e);
        }

        throw new \InvalidArgumentException(sprintf('Controller "%s" does neither exist as service nor as class.', $class), 0, $e);
    }

    

use Symfony\Component\HttpKernel\Controller\ContainerControllerResolver;

/** * @author Fabien Potencier <fabien@symfony.com> * * @final */
class ControllerResolver extends ContainerControllerResolver
{
    protected function instantiateController(string $class): object
    {
        $controller = parent::instantiateController($class);

        if ($controller instanceof ContainerAwareInterface) {
            trigger_deprecation('symfony/dependency-injection', '6.4', 'Relying on "%s" to get the container in "%s" is deprecated, register the controller as a service and use dependency injection instead.', ContainerAwareInterface::class, get_debug_type($controller));
            $controller->setContainer($this->container);
        }
        if ($controller instanceof AbstractController) {
            if (null === $previousContainer = $controller->setContainer($this->container)) {
                throw new \LogicException(sprintf('"%s" has no container set, did you forget to define it as a service subscriber?', $class));
            } else {
                $controller->setContainer($previousContainer);
            }
        }