fix: phpstan error

Author: VincentLanglet

src/Hydra/Serializer/DocumentationNormalizer.php

@@ -313,7 +313,7 @@ private function getHydraOperation(HttpOperation $operation, string $prefixedSho
 
             if (null !== $inputClass) {
                 $possibleValue = [];
-                foreach ($operation->getInputFormats() as $mimeTypes) {
+                foreach ($operation->getInputFormats() ?? [] as $mimeTypes) {
                     foreach ($mimeTypes as $mimeType) {
                         $possibleValue[] = $mimeType;
                     }

src/Laravel/Exception/ErrorHandler.php

@@ -77,7 +77,7 @@ public function render($request, \Throwable $exception)
             $operation = null;
             foreach ($resourceCollection as $resource) {
                 foreach ($resource->getOperations() as $op) {
-                    foreach ($op->getOutputFormats() as $key => $value) {
+                    foreach ($op->getOutputFormats() ?? [] as $key => $value) {
                         if ($key === $format) {
                             $operation = $op;
                             break 3;

src/Metadata/HttpOperation.php

@@ -29,6 +29,13 @@ class HttpOperation extends Operation
     public const METHOD_HEAD = 'HEAD';
     public const METHOD_OPTIONS = 'OPTIONS';
 
+    /** @var array<int|string, string|string[]>|null */
+    protected ?array $formats;
+    /** @var array<int|string, string|string[]>|null */
+    protected ?array $inputFormats;
+    /** @var array<int|string, string|string[]>|null */
+    protected ?array $outputFormats;
+
     /**
      * @param string[]|null                                  $types         the RDF types of this property
      * @param array<int|string, string|string[]>|string|null $formats       {@see https://api-platform.com/docs/core/content-negotiation/#configuring-formats-for-a-specific-resource-or-operation}
@@ -90,9 +97,9 @@ public function __construct(
         protected string $method = 'GET',
         protected ?string $uriTemplate = null,
         protected ?array $types = null,
-        protected $formats = null,
-        protected $inputFormats = null,
-        protected $outputFormats = null,
+        $formats = null,
+        $inputFormats = null,
+        $outputFormats = null,
         protected $uriVariables = null,
         protected ?string $routePrefix = null,
         protected ?string $routeName = null,
@@ -214,6 +221,10 @@ public function __construct(
         ?bool $queryParameterValidationEnabled = null,
         array $extraProperties = [],
     ) {
+        $this->formats = (null === $formats || \is_array($formats)) ? $formats : [$formats];
+        $this->inputFormats = (null === $inputFormats || \is_array($inputFormats)) ? $inputFormats : [$inputFormats];
+        $this->outputFormats = (null === $outputFormats || \is_array($outputFormats)) ? $outputFormats : [$outputFormats];
+
         parent::__construct(
             shortName: $shortName,
             class: $class,
@@ -312,7 +323,7 @@ public function withTypes($types): static
     }
 
     /**
-     * @return array<int|string, string|string[]>|string|null
+     * @return array<int|string, string|string[]>|null
      */
     public function getFormats()
     {
@@ -325,13 +336,13 @@ public function getFormats()
     public function withFormats($formats = null): static
     {
         $self = clone $this;
-        $self->formats = $formats;
+        $self->formats = (null === $formats || \is_array($formats)) ? $formats : [$formats];
 
         return $self;
     }
 
     /**
-     * @return array<int|string, string|string[]>|string|null
+     * @return array<int|string, string|string[]>|null
      */
     public function getInputFormats()
     {
@@ -344,13 +355,13 @@ public function getInputFormats()
     public function withInputFormats($inputFormats = null): static
     {
         $self = clone $this;
-        $self->inputFormats = $inputFormats;
+        $self->inputFormats = (null === $inputFormats || \is_array($inputFormats)) ? $inputFormats : [$inputFormats];
 
         return $self;
     }
 
     /**
-     * @return array<int|string, string|string[]>|string|null
+     * @return array<int|string, string|string[]>|null
      */
     public function getOutputFormats()
     {
@@ -363,7 +374,7 @@ public function getOutputFormats()
     public function withOutputFormats($outputFormats = null): static
     {
         $self = clone $this;
-        $self->outputFormats = $outputFormats;
+        $self->outputFormats = (null === $outputFormats || \is_array($outputFormats)) ? $outputFormats : [$outputFormats];
 
         return $self;
     }

src/Symfony/EventListener/ErrorListener.php

@@ -227,7 +227,7 @@ class: Error::class,
             // TODO: move this to ResourceMetadataCollection?
             foreach ($resourceCollection as $resource) {
                 foreach ($resource->getOperations() as $op) {
-                    foreach ($op->getOutputFormats() as $key => $value) {
+                    foreach ($op->getOutputFormats() ?? [] as $key => $value) {
                         if ($key === $format) {
                             $operation = $op;
                             break 3;