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[Container][Tags] Added a note about _instanceof #9221

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ghost
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@ghost ghost commented Feb 7, 2018

Documentation related to symfony/symfony#21530 and symfony/symfony-docs issue #9089.

I was looking for this yesterday and couldn't find it, so I'm hereby updating the doc.

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[Container][Tags] Added a note about _instanceof
e150827 
I was looking for this yesterday and couldn't find it, so I'm hereby updating the doc. This will also fix #9089.
linaori
linaori reviewed Feb 13, 2018
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service_container/tags.rst
@@ -82,6 +84,16 @@ that it implements ``Twig_ExtensionInterface``) and adds the tag for you.
}
}

If you do not want to create a custom kernel, it is also possible to use `_instanceof`:

.. code-block:: yaml
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Missing the xml and php documentation format. However, I'm unsure of their notations at this point.

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For XML: e.g. https://github.com/symfony/symfony/blob/master/src/Symfony/Component/DependencyInjection/Tests/Fixtures/xml/services_instanceof.xml
For PHP: https://github.com/symfony/symfony/blob/master/src/Symfony/Component/DependencyInjection/Tests/Compiler/ResolveInstanceofConditionalsPassTest.php

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Note that for PHP, setInstanceofConditionals should be called for every single definition, since there is no "file" scope context there

@javiereguiluz javiereguiluz modified the milestones: 3.1, 3.4 Apr 19, 2018
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Hello @ghost! Thanks for working on this! Would you like to add the other config formats or should we take over your PR?

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nicolas-grekas commented Jul 1, 2018 •
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I'd suggest adding a "tips" note stating something like:
While similar on the surface, registerForAuconfiguration() and instanceof-conditionals have different scope. registerForAuconfiguration() defines options that should be applied globally to all the definitions that have autoconfiguration enabled. Instanceof-conditionals apply only to the services defined in the very file where they are defined, whether or not these services have autoconfiguration enabled.

@javiereguiluz javiereguiluz mentioned this pull request Oct 15, 2018
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This pull request stalled, so I've created #10491 to finish what reviewers asked here. Thanks!

javiereguiluz added a commit that referenced this pull request Oct 15, 2018
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minor #10491 Improved the docs of the instanceof config (javiereguiluz)
ad91c78 
This PR was merged into the 3.4 branch.

Discussion
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Improved the docs of the instanceof config

This finishes #9221.

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3d256c6 Improved the docs of the instanceof config
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@HeahDude @nicolas-grekas @javiereguiluz @acrobat @linaori @carsonbot @Hipio