Use ? to mark parameters as nullable to prevent PHP 8.4 deprecation warning

CloudObjects/SDK/AccountGateway/AccountContext.php

@@ -40,7 +40,7 @@ class AccountContext {
 	/**
 	 * Create a new context using an AAUID and an OAuth 2.0 bearer access token.
 	 */
-	public function __construct(IRI $aauid, $accessToken, DataLoader $dataLoader = null) {
+	public function __construct(IRI $aauid, $accessToken, ?DataLoader $dataLoader = null) {
 		if (AAUIDParser::getType($aauid) != AAUIDParser::AAUID_ACCOUNT)
 			throw new \Exception("Not a valid AAUID");
 

CloudObjects/SDK/CloudObject.php

@@ -85,7 +85,7 @@ class CloudObject {
      * Get the value of a property as a string.
      * If the property has multiple values, only the first is returned.
      */
-    public function getString($property, string $default = null) : ?string {
+    public function getString($property, ?string $default = null) : ?string {
         return $this->getReader()->getFirstValueString($this->node, $property, $default);
     }
 
@@ -93,7 +93,7 @@ class CloudObject {
      * Get the value of a property as an integer.
      * If the property has multiple values, only the first is returned.
      */
-    public function getInt($property, int $default = null) : ?int {
+    public function getInt($property, ?int $default = null) : ?int {
         return $this->getReader()->getFirstValueInt($this->node, $property, $default);
     }
 
@@ -101,7 +101,7 @@ class CloudObject {
      * Get the value of a property as a float.
      * If the property has multiple values, only the first is returned.
      */
-    public function getFloat($property, float $default = null) : ?float {
+    public function getFloat($property, ?float $default = null) : ?float {
         return $this->getReader()->getFirstValueFloat($this->node, $property, $default);
     }
 
@@ -109,7 +109,7 @@ class CloudObject {
      * Get the value of a property as a boolean.
      * If the property has multiple values, only the first is returned.
      */
-    public function getBool($property, bool $default = null) : ?bool {
+    public function getBool($property, ?bool $default = null) : ?bool {
         return $this->getReader()->getFirstValueBool($this->node, $property, $default);
     }
 
@@ -117,7 +117,7 @@ class CloudObject {
      * Get the value of a property as an IRI.
      * If the property has multiple values, only the first is returned.
      */
-    public function getIRI($property, IRI $default = null) : ?IRI {
+    public function getIRI($property, ?IRI $default = null) : ?IRI {
         return $this->getReader()->getFirstValueIRI($this->node, $property, $default);
     }
 
@@ -125,7 +125,7 @@ class CloudObject {
      * Get the value of a property as a Node.
      * If the property has multiple values, only the first is returned.
      */
-    public function getNode($property, Node $default = null) : ?Node {
+    public function getNode($property, ?Node $default = null) : ?Node {
         return $this->getReader()->getFirstValueNode($this->node, $property, $default);
     }
 

CloudObjects/SDK/Common/CryptoHelper.php

@@ -53,7 +53,7 @@ class CryptoHelper {
      * @param ObjectRetriever $objectRetriever An initialized and authenticated object retriever.
      * @param IRI|null $namespaceCoid The namespace used to retrieve keys. If this parameter is not provided, the namespace provided with the "auth_ns" configuration option from the object retriever is used.
      */
-    public function __construct(ObjectRetriever $objectRetriever, IRI $namespaceCoid = null) {
+    public function __construct(ObjectRetriever $objectRetriever, ?IRI $namespaceCoid = null) {
         if (!class_exists('Defuse\Crypto\Crypto'))
             throw new Exception("Run composer require defuse/php-encryption before using CryptoHelper.");
 

CloudObjects/SDK/NodeReader.php

@@ -38,7 +38,7 @@ class NodeReader {
      * @param string|object $type The type to check for.
      * @return boolean
      */
-    public function hasType(Node $node = null, $type) {
+    public function hasType(?Node $node = null, $type) {
         if (!isset($node))
             return false;
         $type = $this->expand($type);
@@ -60,7 +60,7 @@ class NodeReader {
         return false;
     }
 
-    private function getFirstValue(Node $node = null, $property, $default = null) {
+    private function getFirstValue(?Node $node = null, $property, $default = null) {
         if (!isset($node))
             return $default;
         $valueFromNode = $node->getProperty($this->expand($property));
@@ -82,7 +82,7 @@ class NodeReader {
      * @param $default The default that is returned if no value for the property exists on the node.
      * @return string|null
      */
-    public function getFirstValueString(Node $node = null, $property, $default = null) {
+    public function getFirstValueString(?Node $node = null, $property, $default = null) {
         $valueFromNode = $this->getFirstValue($node, $property, $default);
         if ($valueFromNode == $default)
             return $default;
@@ -103,7 +103,7 @@ class NodeReader {
      * @param $default The default that is returned if no value for the property exists on the node.
      * @return bool|null
      */
-    public function getFirstValueBool(Node $node = null, $property, $default = null) {
+    public function getFirstValueBool(?Node $node = null, $property, $default = null) {
         return (in_array(
             $this->getFirstValueString($node, $property, $default),
             [ '1', 'true' ]
@@ -120,7 +120,7 @@ class NodeReader {
      * @param $default The default that is returned if no value for the property exists on the node.
      * @return int|null
      */
-    public function getFirstValueInt(Node $node = null, $property, $default = null) {
+    public function getFirstValueInt(?Node $node = null, $property, $default = null) {
         $value = $this->getFirstValueString($node, $property);
         if (is_numeric($value))
             return (int)($value);
@@ -138,7 +138,7 @@ class NodeReader {
      * @param $default The default that is returned if no value for the property exists on the node.
      * @return float|null
      */
-    public function getFirstValueFloat(Node $node = null, $property, $default = null) {
+    public function getFirstValueFloat(?Node $node = null, $property, $default = null) {
         $value = $this->getFirstValueString($node, $property);
         if (is_numeric($value))
             return (float)($value);
@@ -156,7 +156,7 @@ class NodeReader {
      * @param $default The default that is returned if no value for the property exists on the node.
      * @return string|null
      */
-    public function getFirstValueIRI(Node $node = null, $property, IRI $default = null) {
+    public function getFirstValueIRI(?Node $node = null, $property, ?IRI $default = null) {
         $valueFromNode = $this->getFirstValue($node, $property, $default);
         if ($valueFromNode == $default)
             return $default;
@@ -177,7 +177,7 @@ class NodeReader {
      * @param $default The default that is returned if no value for the property exists on the node.
      * @return string|null
      */
-    public function getFirstValueNode(Node $node = null, $property, Node $default = null) {
+    public function getFirstValueNode(?Node $node = null, $property, ?Node $default = null) {
         $valueFromNode = $this->getFirstValue($node, $property, $default);
         if ($valueFromNode == $default)
             return $default;
@@ -196,7 +196,7 @@ class NodeReader {
      * @param string|object $value The expected value.
      * @return boolean
      */
-    public function hasPropertyValue(Node $node = null, $property, $value) {
+    public function hasPropertyValue(?Node $node = null, $property, $value) {
         if (!isset($node))
             return false;
         $valuesFromNode = $node->getProperty($this->expand($property));
@@ -225,14 +225,14 @@ class NodeReader {
      * @param string|object $property The property to read.
      * @return boolean
      */
-    public function hasProperty(Node $node = null, $property) {
+    public function hasProperty(?Node $node = null, $property) {
         if (!isset($node))
             return false;
         
         return ($node->getProperty($this->expand($property)) != null);
     }
 
-    private function getAllValues(Node $node = null, $property) {
+    private function getAllValues(?Node $node = null, $property) {
         if (!isset($node))
             return [];
 
@@ -248,7 +248,7 @@ class NodeReader {
      * Get the language-tagged-string for the property in the specified language.
      * If no value is found for the specified language, the default is returned.
      */
-    public function getLocalizedString(Node $node = null, $property, $language, $default = null) {
+    public function getLocalizedString(?Node $node = null, $property, $language, $default = null) {
         $values = $this->getAllValues($node, $property);
         foreach ($values as $v) {
             if (is_a($v, 'ML\JsonLD\LanguageTaggedString') && $v->getLanguage() == $language)
@@ -265,7 +265,7 @@ class NodeReader {
      * @param string|object $property The property to read.
      * @return array<string>
      */
-    public function getAllValuesString(Node $node = null, $property) {
+    public function getAllValuesString(?Node $node = null, $property) {
         $allValues = $this->getAllValues($node, $property);
         $output = [];
         foreach ($allValues as $a)
@@ -284,7 +284,7 @@ class NodeReader {
      * @param string|object $property The property to read.
      * @return array<bool>
      */
-    public function getAllValuesBool(Node $node = null, $property) {
+    public function getAllValuesBool(?Node $node = null, $property) {
         $allValues = $this->getAllValuesString($node, $property);
         $output = [];
         foreach ($allValues as $a)
@@ -300,7 +300,7 @@ class NodeReader {
      * @param string|object $property The property to read.
      * @return array<bool>
      */
-    public function getAllValuesInt(Node $node = null, $property) {
+    public function getAllValuesInt(?Node $node = null, $property) {
         $allValues = $this->getAllValuesString($node, $property);
         $output = [];
         foreach ($allValues as $a)
@@ -316,7 +316,7 @@ class NodeReader {
      * @param string|object $property The property to read.
      * @return array<bool>
      */
-    public function getAllValuesFloat(Node $node = null, $property) {
+    public function getAllValuesFloat(?Node $node = null, $property) {
         $allValues = $this->getAllValuesString($node, $property);
         $output = [];
         foreach ($allValues as $a)
@@ -333,7 +333,7 @@ class NodeReader {
      * @param string|object $property The property to read.
      * @return array<IRI>
      */
-    public function getAllValuesIRI(Node $node = null, $property) {
+    public function getAllValuesIRI(?Node $node = null, $property) {
         $allValues = $this->getAllValues($node, $property);
         $output = [];
         foreach ($allValues as $a)
@@ -351,7 +351,7 @@ class NodeReader {
      * @param string|object $property The property to read.
      * @return array<Node>
      */
-    public function getAllValuesNode(Node $node = null, $property) {
+    public function getAllValuesNode(?Node $node = null, $property) {
         $allValues = $this->getAllValues($node, $property);
         $output = [];
         foreach ($allValues as $a)

CloudObjects/SDK/WebAPI/APIClientFactory.php

@@ -217,7 +217,7 @@ class APIClientFactory {
      * @param ObjectRetriever $objectRetriever An initialized and authenticated object retriever.
      * @param IRI|null $namespaceCoid The namespace of the API client. Used to retrieve credentials. If this parameter is not provided, the namespace provided with the "auth_ns" configuration option from the object retriever is used.
      */
-    public function __construct(ObjectRetriever $objectRetriever, IRI $namespaceCoid = null) {
+    public function __construct(ObjectRetriever $objectRetriever, ?IRI $namespaceCoid = null) {
         $this->objectRetriever = $objectRetriever;
         $this->namespace = isset($namespaceCoid)
             ? $objectRetriever->getObjectNode($namespaceCoid)