Zend\Expressive\Container\WhoopsPageHandlerFactory::injectEditor PHP Method

    private function injectEditor(PrettyPageHandler $handler, $config, ContainerInterface $container)
    {
        if (!isset($config['editor'])) {
            return;
        }
        $editor = $config['editor'];
        if (is_callable($editor)) {
            $handler->setEditor($editor);
            return;
        }
        if (!is_string($editor)) {
            throw new Exception\InvalidServiceException(sprintf('Whoops editor must be a string editor name, string service name, or callable; received "%s"', is_object($editor) ? get_class($editor) : gettype($editor)));
        }
        if ($container->has($editor)) {
            $editor = $container->get($editor);
        }
        $handler->setEditor($editor);
    }