@@ -307,8 +307,9 @@ and a Twitter client using it:
307307
308308services :
309309rot13_transformer :
310- class :Acme\Rot13Transformer
311- autowiring_types :Acme\TransformerInterface
310+ class :Acme\Rot13Transformer
311+
312+ Acme\TransformerInterface :' @rot13_transformer'
312313
313314twitter_client :
314315class :Acme\TwitterClient
@@ -330,9 +331,9 @@ and a Twitter client using it:
330331xsi : schemaLocation =" http://symfony.com/schema/dic/services http://symfony.com/schema/dic/services/services-1.0.xsd"
331332
332333 <services >
333- <service id =" rot13_transformer" class =" Acme\Rot13Transformer"
334- < autowiring-type >Acme\TransformerInterface</ autowiring-type >
335- </ service >
334+ <service id =" rot13_transformer" class =" Acme\Rot13Transformer" / >
335+
336+ <service id = " Acme\TransformerInterface " alias = " rot13_transformer " / >
336337
337338 <service id =" twitter_client" class =" Acme\TwitterClient" autowire =" true"
338339
@@ -356,9 +357,8 @@ and a Twitter client using it:
356357 use Symfony\Component\DependencyInjection\Definition;
357358
358359 // ...
359- $rot13Definition = new Definition(Rot13Transformer::class);
360- $rot13Definition->setAutowiringTypes(array(TransformerInterface::class));
361- $container->setDefinition('rot13_transformer', $rot13Definition);
360+ $container->register('rot13_transformer', Rot13Transformer::class);
361+ $container->setAlias(TransformerInterface::class, 'rot13_transformer')
362362
363363 $clientDefinition = new Definition(TwitterClient::class);
364364 $clientDefinition->setAutowired(true);
@@ -382,10 +382,14 @@ to use which leads to errors like this:
382382 [Symfony\Component\DependencyInjection\Exception\RuntimeException]
383383 Unable to autowire argument of type "Acme\TransformerInterface" for the service "twitter_client".
384384
385- autowiring_types `` key is here to specify which implementation
386- to use by default. This key can take a list of types if necessary.
385+
386+ to use by default.
387+
388+ ..versionadded ::3.3
389+ Using FQCN aliases to fix autowiring ambiguities is allowed since Symfony
390+ 3.3. Prior to version 3.3, you needed to use the ``autowiring_types `` key.
387391
388- Thanks to thissetting , the ``rot13_transformer `` service is automatically injected
392+ Thanks to thisalias , the ``rot13_transformer `` service is automatically injected
389393as an argument of the ``uppercase_transformer `` and ``twitter_client `` services. For
390394the ``uppercase_twitter_client ``, a standard service definition is used to
391395inject the specific ``uppercase_transformer `` service.