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Commit407fe1d

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minor#10041 Add section about anonymous services in YAML (Tim Goudriaan)
This PR was merged into the 3.4 branch.Discussion----------Add section about anonymous services in YAMLFixes#7694.This is a continuation of#9909 which added some information about anonymous services in XML to the docs, next will be a commit that describes configuring anonymous services in PHP for the `master` branch. For further information about the issue, see#5854.Commits-------8a83664 Add section about anonymous services in YAML
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‎service_container/alias_private.rst‎

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@@ -149,7 +149,7 @@ Anonymous Services
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..note::
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Anonymous services are only supported by the XML configurationformat.
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Anonymous services are only supported by the XMLand YAMLconfigurationformats.
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In some cases, you may want to prevent a service being used as a dependency of
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other services. This can be achieved by creating an anonymous service. These
@@ -158,23 +158,74 @@ created where they are used.
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The following example shows how to inject an anonymous service into another service:
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..code-block::xml
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..configuration-block::
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..code-block::yaml
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# app/config/services.yml
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services:
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_defaults:
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autowire:true
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AppBundle\Foo:
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arguments:
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-!service
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class:AppBundle\AnonymousBar
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autowire:true
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..code-block::xml
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<!-- app/config/services.xml-->
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<?xml version="1.0" encoding="UTF-8" ?>
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<containerxmlns="http://symfony.com/schema/dic/services"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://symfony.com/schema/dic/services
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http://symfony.com/schema/dic/services/services-1.0.xsd">
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<services>
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<defaultsautowire="true" />
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<serviceid="foo"class="AppBundle\Foo">
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<argumenttype="service">
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<serviceclass="AppBundle\AnonymousBar" />
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</argument>
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</service>
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</services>
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</container>
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<!-- app/config/services.xml-->
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<?xml version="1.0" encoding="UTF-8" ?>
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<containerxmlns="http://symfony.com/schema/dic/services"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://symfony.com/schema/dic/services
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http://symfony.com/schema/dic/services/services-1.0.xsd">
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Using an anonymous service as a factory looks like this:
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<services>
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<serviceid="foo"class="AppBundle\Foo">
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<argumenttype="service">
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<serviceclass="AppBundle\AnonymousBar" />
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</argument>
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</service>
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</services>
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</container>
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..configuration-block::
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..code-block::yaml
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# app/config/services.yml
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services:
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_defaults:
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autowire:true
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AppBundle\Foo:
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factory:[ !service { class: AppBundle\FooFactory }, 'constructFoo' ]
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..code-block::xml
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<!-- app/config/services.xml-->
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<?xml version="1.0" encoding="UTF-8" ?>
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<containerxmlns="http://symfony.com/schema/dic/services"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://symfony.com/schema/dic/services
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http://symfony.com/schema/dic/services/services-1.0.xsd">
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<services>
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<defaultsautowire="true" />
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<serviceid="foo"class="AppBundle\Foo">
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<factorymethod="constructFoo">
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<serviceclass="App\FooFactory"/>
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</factory>
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</service>
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</services>
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</container>
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Deprecating Services
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--------------------
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..code-block::yaml
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AppBundle\Service\OldService:
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deprecated:The "%service_id%" service is deprecated since 2.8 and will be removed in 3.0.
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AppBundle\Service\OldService:
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deprecated:The "%service_id%" service is deprecated since 2.8 and will be removed in 3.0.
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..code-block::xml
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