Linting Service Definitions

The ``lint:container`` command checks that the arguments injected into services

match their type declarations. It's useful to run it before deploying your

application to production (e.g. in your continuous integration server):

The ``lint:container`` command performs some additional checks to make sure

the container is properly configured:

* ensures the arguments injected into services match their type declarations.

* ensures the interfaces configured as alias are resolving to a compatible

service.

It's useful to run it before deploying your application to production

(e.g. in your continuous integration server):

..code-block::terminal

Checking the types of all service arguments whenever the container is compiled

can hurt performance. That's why this type checking is implemented in a

:doc:`compiler pass</service_container/compiler_passes>` called

``CheckTypeDeclarationsPass`` which is disabled by default and enabled only when

executing the ``lint:container`` command. If you don't mind the performance

loss, enable the compiler pass in your application.

Doing those checks whenever the container is compiled

can hurt performance. That's why this is implemented in

:doc:`compiler passes</service_container/compiler_passes>` called

``CheckTypeDeclarationsPass`` and ``CheckAliasValidityPass`` which are disabled

by default and enabled only when executing the ``lint:container`` command.

If you don't mind the performance loss, enable these compiler passes in

your application.

.. _container-public: