is_scalar check before using $type as array key

Author: nilportugues

src/Transformer/Helpers/RecursiveDeleteHelper.php

@@ -87,7 +87,7 @@ public static function deleteProperties(array &$mappings, array &$array, $typeKe
     private static function deleteMatchedClassProperties(array &$mappings, array &$array, $typeKey, array &$newArray)
     {
         $type = $array[Serializer::CLASS_IDENTIFIER_KEY];
-        if ($type === $typeKey) {
+        if (is_scalar($type) && $type === $typeKey) {
             $deletions = $mappings[$typeKey]->getHiddenProperties();
             if (!empty($deletions)) {
                 self::deleteNextLevelProperties($mappings, $array, $typeKey, $deletions, $newArray);

src/Transformer/Helpers/RecursiveFilterHelper.php

@@ -52,7 +52,7 @@ private static function deleteMatchedClassNotInFilterProperties(
         $type,
         array &$newArray
     ) {
-        if ($type === $typeKey) {
+        if (is_scalar($type) && $type === $typeKey) {
             $keepKeys = $mappings[$typeKey]->getFilterKeys();
             $idProperties = $mappings[$typeKey]->getIdProperties();
 

src/Transformer/Helpers/RecursiveFormatterHelper.php

@@ -60,7 +60,7 @@ public static function getIdProperties(array &$mappings, $type)
     {
         $idProperties = [];
 
-        if (!empty($mappings[$type])) {
+        if (is_scalar($type) && !empty($mappings[$type])) {
             $idProperties = $mappings[$type]->getIdProperties();
         }
 

src/Transformer/Helpers/RecursiveRenamerHelper.php

@@ -69,7 +69,7 @@ public static function renameKeyValue(array &$mappings, array &$array, $typeKey)
      */
     private static function renameMatchedClassKeys(array &$mappings, array &$array, $typeKey, $type, array &$newArray)
     {
-        if ($type === $typeKey) {
+        if (is_scalar($type) && $type === $typeKey) {
             $replacements = $mappings[$typeKey]->getAliasedProperties();
             if (!empty($replacements)) {
                 self::renameKeys($mappings, $array, $typeKey, $replacements, $newArray);

src/Transformer/Transformer.php

@@ -266,7 +266,7 @@ public function setNextUrl($nextUrl)
      */
     protected function getResponseAdditionalLinks(array $copy, $type)
     {
-        if (!empty($this->mappings[$type])) {
+        if (is_scalar($type) && !empty($this->mappings[$type])) {
             $otherUrls = $this->mappings[$type]->getUrls();
             list($idValues, $idProperties) = RecursiveFormatterHelper::getIdPropertyAndValues(
                 $this->mappings,