added support for serializer v5

Author: saimaz

Diff for: composer.json

@@ -11,8 +11,8 @@
         }
     ],
     "require": {
-        "php": "^7.0",
-        "symfony/serializer": "^3.0|^4.0",
+        "php": "^7.2",
+        "symfony/serializer": "^5.0",
         "paragonie/random_compat": "*",
         "elasticsearch/elasticsearch": "^6.0"
     },

Diff for: src/SearchEndpoint/AggregationsEndpoint.php

@@ -27,7 +27,7 @@ class AggregationsEndpoint extends AbstractSearchEndpoint
     /**
      * {@inheritdoc}
      */
-    public function normalize(NormalizerInterface $normalizer, $format = null, array $context = [])
+    public function normalize(NormalizerInterface $normalizer, string $format = null, array $context = [])
     {
         $output = [];
         if (count($this->getAll()) > 0) {

Diff for: src/SearchEndpoint/HighlightEndpoint.php

@@ -37,7 +37,7 @@ class HighlightEndpoint extends AbstractSearchEndpoint
     /**
      * {@inheritdoc}
      */
-    public function normalize(NormalizerInterface $normalizer, $format = null, array $context = [])
+    public function normalize(NormalizerInterface $normalizer, string $format = null, array $context = [])
     {
         if ($this->highlight) {
             return $this->highlight->toArray();

Diff for: src/SearchEndpoint/InnerHitsEndpoint.php

@@ -27,7 +27,7 @@ class InnerHitsEndpoint extends AbstractSearchEndpoint
     /**
      * {@inheritdoc}
      */
-    public function normalize(NormalizerInterface $normalizer, $format = null, array $context = [])
+    public function normalize(NormalizerInterface $normalizer, string $format = null, array $context = [])
     {
         $output = [];
         if (count($this->getAll()) > 0) {

Diff for: src/SearchEndpoint/PostFilterEndpoint.php

@@ -26,7 +26,7 @@ class PostFilterEndpoint extends QueryEndpoint
     /**
      * {@inheritdoc}
      */
-    public function normalize(NormalizerInterface $normalizer, $format = null, array $context = [])
+    public function normalize(NormalizerInterface $normalizer, string $format = null, array $context = [])
     {
         if (!$this->getBool()) {
             return null;

Diff for: src/SearchEndpoint/QueryEndpoint.php

@@ -39,7 +39,7 @@ class QueryEndpoint extends AbstractSearchEndpoint implements OrderedNormalizerI
     /**
      * {@inheritdoc}
      */
-    public function normalize(NormalizerInterface $normalizer, $format = null, array $context = [])
+    public function normalize(NormalizerInterface $normalizer, string $format = null, array $context = [])
     {
         if (!$this->filtersSet && $this->hasReference('filter_query')) {
             /** @var BuilderInterface $filter */

Diff for: src/SearchEndpoint/SortEndpoint.php

@@ -26,7 +26,7 @@ class SortEndpoint extends AbstractSearchEndpoint
     /**
      * {@inheritdoc}
      */
-    public function normalize(NormalizerInterface $normalizer, $format = null, array $context = [])
+    public function normalize(NormalizerInterface $normalizer, string $format = null, array $context = [])
     {
         $output = [];
 

Diff for: src/SearchEndpoint/SuggestEndpoint.php

@@ -27,7 +27,7 @@ class SuggestEndpoint extends AbstractSearchEndpoint
     /**
      * {@inheritdoc}
      */
-    public function normalize(NormalizerInterface $normalizer, $format = null, array $context = [])
+    public function normalize(NormalizerInterface $normalizer, string $format = null, array $context = [])
     {
         $output = [];
         if (count($this->getAll()) > 0) {

Diff for: src/Serializer/Normalizer/CustomReferencedNormalizer.php

@@ -26,7 +26,7 @@ class CustomReferencedNormalizer extends CustomNormalizer
     /**
      * {@inheritdoc}
      */
-    public function normalize($object, $format = null, array $context = [])
+    public function normalize($object, string $format = null, array $context = [])
     {
         $object->setReferences($this->references);
         $data = parent::normalize($object, $format, $context);
@@ -38,7 +38,7 @@ public function normalize($object, $format = null, array $context = [])
     /**
      * {@inheritdoc}
      */
-    public function supportsNormalization($data, $format = null)
+    public function supportsNormalization($data, string $format = null)
     {
         return $data instanceof AbstractNormalizable;
     }