feature #22907 [Serializer] remove remaining deprecated features (xabbuh)

This PR was merged into the 4.0-dev branch.

Discussion
----------

[Serializer] remove remaining deprecated features

| Q             | A
| ------------- | ---
| Branch?       | master
| Bug fix?      | no
| New feature?  | no
| BC breaks?    | yes
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets |
| License       | MIT
| Doc PR        |

Commits
-------

8425f1b748 [Serializer] remove remaining deprecated features

src/Symfony/Component/Serializer/CHANGELOG.md

@@ -1,6 +1,14 @@
 CHANGELOG
 =========
 
+4.0.0
+-----
+
+ * removed the `SerializerAwareEncoder` and `SerializerAwareNormalizer` classes,
+   use the `SerializerAwareTrait` instead
+ * removed the `Serializer::$normalizerCache` and `Serializer::$denormalizerCache`
+   properties
+
 3.3.0
 -----
 

src/Symfony/Component/Serializer/Encoder/SerializerAwareEncoder.php

@@ -1,27 +0,0 @@
-<?php
-
-/*
- * This file is part of the Symfony package.
- *
- * (c) Fabien Potencier <fabien@symfony.com>
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
-
-namespace Symfony\Component\Serializer\Encoder;
-
-use Symfony\Component\Serializer\SerializerAwareInterface;
-use Symfony\Component\Serializer\SerializerAwareTrait;
-
-/**
- * SerializerAware Encoder implementation.
- *
- * @author Jordi Boggiano <j.boggiano@seld.be>
- *
- * @deprecated since version 3.2, to be removed in 4.0. Use the SerializerAwareTrait instead.
- */
-abstract class SerializerAwareEncoder implements SerializerAwareInterface
-{
-    use SerializerAwareTrait;
-}

src/Symfony/Component/Serializer/Encoder/XmlEncoder.php

@@ -12,6 +12,8 @@
 namespace Symfony\Component\Serializer\Encoder;
 
 use Symfony\Component\Serializer\Exception\UnexpectedValueException;
+use Symfony\Component\Serializer\SerializerAwareInterface;
+use Symfony\Component\Serializer\SerializerAwareTrait;
 
 /**
  * Encodes XML data.
@@ -21,8 +23,10 @@ use Symfony\Component\Serializer\Exception\UnexpectedValueException;
  * @author Fabian Vogler <fabian@equivalence.ch>
  * @author Kévin Dunglas <dunglas@gmail.com>
  */
-class XmlEncoder extends SerializerAwareEncoder implements EncoderInterface, DecoderInterface, NormalizationAwareInterface
+class XmlEncoder implements EncoderInterface, DecoderInterface, NormalizationAwareInterface, SerializerAwareInterface
 {
+    use SerializerAwareTrait;
+
     const FORMAT = 'xml';
 
     /**

src/Symfony/Component/Serializer/Normalizer/AbstractNormalizer.php

@@ -19,14 +19,17 @@ use Symfony\Component\Serializer\Mapping\Factory\ClassMetadataFactoryInterface;
 use Symfony\Component\Serializer\Mapping\AttributeMetadataInterface;
 use Symfony\Component\Serializer\NameConverter\NameConverterInterface;
 use Symfony\Component\Serializer\SerializerAwareInterface;
+use Symfony\Component\Serializer\SerializerAwareTrait;
 
 /**
  * Normalizer implementation.
  *
  * @author Kévin Dunglas <dunglas@gmail.com>
  */
-abstract class AbstractNormalizer extends SerializerAwareNormalizer implements NormalizerInterface, DenormalizerInterface, SerializerAwareInterface
+abstract class AbstractNormalizer implements NormalizerInterface, DenormalizerInterface, SerializerAwareInterface
 {
+    use SerializerAwareTrait;
+
     const CIRCULAR_REFERENCE_LIMIT = 'circular_reference_limit';
     const OBJECT_TO_POPULATE = 'object_to_populate';
     const GROUPS = 'groups';

src/Symfony/Component/Serializer/Normalizer/SerializerAwareNormalizer.php

@@ -1,27 +0,0 @@
-<?php
-
-/*
- * This file is part of the Symfony package.
- *
- * (c) Fabien Potencier <fabien@symfony.com>
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
-
-namespace Symfony\Component\Serializer\Normalizer;
-
-use Symfony\Component\Serializer\SerializerAwareTrait;
-use Symfony\Component\Serializer\SerializerAwareInterface;
-
-/**
- * SerializerAware Normalizer implementation.
- *
- * @author Jordi Boggiano <j.boggiano@seld.be>
- *
- * @deprecated since version 3.1, to be removed in 4.0. Use the SerializerAwareTrait instead.
- */
-abstract class SerializerAwareNormalizer implements SerializerAwareInterface
-{
-    use SerializerAwareTrait;
-}

src/Symfony/Component/Serializer/Serializer.php

@@ -54,20 +54,6 @@ class Serializer implements SerializerInterface, NormalizerInterface, Denormaliz
      */
     protected $normalizers = array();
 
-    /**
-     * @var array
-     *
-     * @deprecated since 3.1 will be removed in 4.0
-     */
-    protected $normalizerCache = array();
-
-    /**
-     * @var array
-     *
-     * @deprecated since 3.1 will be removed in 4.0
-     */
-    protected $denormalizerCache = array();
-
     public function __construct(array $normalizers = array(), array $encoders = array())
     {
         foreach ($normalizers as $normalizer) {