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6 changes: 6 additions & 0 deletions service_container/autowiring.rst
Original file line number Diff line number Diff line change
Expand Up @@ -341,6 +341,12 @@ Thanks to the ``App\Util\TransformerInterface`` alias, the autowiring subsystem
knows that the ``App\Util\Rot13Transformer`` service should be injected when
dealing with the ``TransformerInterface``.

.. tip::

As long as there is only one class implementing the interface and that class
is part of the same namespace configuring the alias is not mandatory and Symfony
will automatically create one.

Dealing with Multiple Implementations of the Same Type
------------------------------------------------------

Expand Down