@@ -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 +331,8 @@ 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+ <service id =" Acme\TransformerInterface" alias =" rot13_transformer"
336336
337337 <service id =" twitter_client" class =" Acme\TwitterClient" autowire =" true"
338338
@@ -356,9 +356,8 @@ and a Twitter client using it:
356356 use Symfony\Component\DependencyInjection\Definition;
357357
358358 // ...
359- $rot13Definition = new Definition(Rot13Transformer::class);
360- $rot13Definition->setAutowiringTypes(array(TransformerInterface::class));
361- $container->setDefinition('rot13_transformer', $rot13Definition);
359+ $container->register('rot13_transformer', Rot13Transformer::class);
360+ $container->setAlias(TransformerInterface::class, 'rot13_transformer')
362361
363362 $clientDefinition = new Definition(TwitterClient::class);
364363 $clientDefinition->setAutowired(true);
@@ -382,10 +381,14 @@ to use which leads to errors like this:
382381 [Symfony\Component\DependencyInjection\Exception\RuntimeException]
383382 Unable to autowire argument of type "Acme\TransformerInterface" for the service "twitter_client".
384383
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.
384+
385+ to use by default.
386+
387+ ..versionadded ::3.2
388+ Using FQCN aliases to fix autowiring ambiguities is allowed since Symfony
389+ 3.3. Prior to version 3.3, you needed to use the ``autowiring_types `` key.
387390
388- Thanks to thissetting , the ``rot13_transformer `` service is automatically injected
391+ Thanks to thisalias , the ``rot13_transformer `` service is automatically injected
389392as an argument of the ``uppercase_transformer `` and ``twitter_client `` services. For
390393the ``uppercase_twitter_client ``, a standard service definition is used to
391394inject the specific ``uppercase_transformer `` service.