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Describe things more precisely #10845

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Describe things more precisely 
Here, namespace is referring to that kind of thing:

    App\Namespace\:
        resource: '../../src/App/Namespace/*'

And it looks as if there is no word yet to name that kind of
configuration block. Let us go with service definition prototype.
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@greg0ire
greg0ire committed Jan 9, 2019
commit ff1ada5a6dfddfbb24d12fa27147ce73e80ef9b7
8 changes: 5 additions & 3 deletions service_container/autowiring.rst
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Expand Up @@ -338,9 +338,10 @@ 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.
When using a `service definition prototype`_, if only one service is
discovered that implements an interface, and that interface is also
discovered at the same time, configuring the alias is not mandatory
and Symfony will automatically create one.

Dealing with Multiple Implementations of the Same Type
------------------------------------------------------
Expand Down Expand Up @@ -500,3 +501,4 @@ Public bundles should explicitly configure their services and not rely on autowi

.. _Rapid Application Development: https://en.wikipedia.org/wiki/Rapid_application_development
.. _ROT13: https://en.wikipedia.org/wiki/ROT13
.. _service definition prototype: https://symfony.com/blog/new-in-symfony-3-3-psr-4-based-service-discovery