从Silex迁移到Symfony

I'm in the middle of migrating some Silex code to a Symfony project..I was wondering what the Symfony equivalent is for registering Pimple services like these:

$app['service.test1'] = $app->protect(...)
$app['service.test2'] = $app->share(...)

Any other pointers are appreciated as well.

I'd check out the docs on the service container for a basic understanding of services.

According to this answer share was removed in new versions of Silex. share seems to equate to regular service definitions you'll read about in the symfony docs.

I've never used anything like protect in Symfony, I suppose you could declare a class with and use the __invoke method for your function.

class Adder
{
  public function __invoke($a, $b) {
    return $a + $b;
  }
}

Then inside YourBundle/Resources/config/services.yml

services:
  adder:
    class: MyNamespace\Adder

And you could use it like so:

$adder = $this->container->get('adder');
$result = $adder(1,2);