[FrameworkBundle] deprecated validator.mapping.cache.doctrine.apc

UPGRADE-3.4.md

@@ -16,6 +16,8 @@ Finder
 FrameworkBundle
 ---------------
 
+ * The `validator.mapping.cache.doctrine.apc` service has been deprecated.
+
  * Using the `KERNEL_DIR` environment variable or the automatic guessing based
    on the `phpunit.xml` / `phpunit.xml.dist` file location is deprecated since 3.4. 
    Set the `KERNEL_CLASS` environment variable to the fully-qualified class name

UPGRADE-4.0.md

@@ -227,6 +227,8 @@ Form
 FrameworkBundle
 ---------------
 
+ * The `validator.mapping.cache.doctrine.apc` service has been removed.
+
  * The `cache:clear` command does not warmup the cache anymore. Warmup should
    be done via the `cache:warmup` command.
 

src/Symfony/Bundle/FrameworkBundle/DependencyInjection/Configuration.php

@@ -661,7 +661,18 @@ class Configuration implements ConfigurationInterface
                     ->info('validation configuration')
                     ->{!class_exists(FullStack::class) && class_exists(Validation::class) ? 'canBeDisabled' : 'canBeEnabled'}()
                     ->children()
-                        ->scalarNode('cache')->end()
+                        ->scalarNode('cache')
+                            ->beforeNormalization()
+                                // Can be removed in 4.0, when validator.mapping.cache.apc is removed
+                                ->ifString()->then(function ($v) {
+                                    if ('validator.mapping.cache.apc' === $v && !class_exists('Doctrine\Common\Cache\ApcCache')) {
+                                        throw new LogicException('Doctrine APC cache for the validator cannot be enabled as the Doctrine Cache package is not installed.');
+                                    }
+
+                                    return $v;
+                                })
+                            ->end()
+                        ->end()
                         ->booleanNode('enable_annotations')->{!class_exists(FullStack::class) && class_exists(Annotation::class) ? 'defaultTrue' : 'defaultFalse'}()->end()
                         ->arrayNode('static_method')
                             ->defaultValue(array('loadValidatorMetadata'))

src/Symfony/Bundle/FrameworkBundle/Resources/config/validator.xml

@@ -57,6 +57,7 @@
                     </call>
                 </service>
             </argument>
+            <deprecated>The "%service_id%" service is deprecated since Symfony 3.4 and will be removed in 4.0. Use a Psr6 cache like "validator.mapping.cache.symfony" instead.</deprecated>
         </service>
 
         <service id="validator.validator_factory" class="Symfony\Component\Validator\ContainerConstraintValidatorFactory">