Fixed invalid OpenAPI spec when returning no content response

src/Infer/Definition/ClassDefinition.php

@@ -81,7 +81,7 @@ public function getPropertyDefinition($name)
         return $this->properties[$name] ?? null;
     }
 
-    public function getMethodCallType(string $name, ObjectType $calledOn = null)
+    public function getMethodCallType(string $name, ?ObjectType $calledOn = null)
     {
         $methodDefinition = $this->methods[$name] ?? null;
 

src/Infer/Scope/Scope.php

@@ -164,7 +164,7 @@ public function setType(Node $node, Type $type)
         return $type;
     }
 
-    public function createChildScope(ScopeContext $context = null)
+    public function createChildScope(?ScopeContext $context = null)
     {
         return new Scope(
             $this->index,

src/Infer/Services/ReferenceTypeResolver.php

@@ -312,7 +312,7 @@ private function getFunctionCallResult(
         FunctionLikeDefinition $callee,
         array $arguments,
         /* When this is a handling for method call */
-        ObjectType|SelfType $calledOnType = null,
+        ObjectType|SelfType|null $calledOnType = null,
     ) {
         $returnType = $callee->type->getReturnType();
         $isSelf = false;

src/Support/Generator/Response.php

@@ -39,7 +39,7 @@ public function toArray()
 
         $content = [];
         foreach ($this->content as $mediaType => $schema) {
-            $content[$mediaType] = $schema ? ['schema' => $schema->toArray()] : [];
+            $content[$mediaType] = $schema ? ['schema' => $schema->toArray()] : (object) [];
         }
 
         $result['content'] = $content;

src/Support/Generator/ServerVariable.php

@@ -13,7 +13,7 @@ class ServerVariable
     public function __construct(
         string $default,
         array $enum = [],
-        string $description = null
+        ?string $description = null
     ) {
         $this->default = $default;
         $this->enum = $enum;
@@ -23,7 +23,7 @@ public function __construct(
     public static function make(
         string $default,
         array $enum = [],
-        string $description = null
+        ?string $description = null
     ) {
         return new self($default, $enum, $description);
     }

src/Support/Generator/UniqueNamesOptionsCollection.php

@@ -42,7 +42,7 @@ public function push(UniqueNameOptions $name)
         return $this;
     }
 
-    public function getUniqueName(UniqueNameOptions $name, callable $onNotUniqueFallback = null): string
+    public function getUniqueName(UniqueNameOptions $name, ?callable $onNotUniqueFallback = null): string
     {
         if ($name->eloquent && count($this->eloquentNames[$name->eloquent]) === 1) {
             return $name->eloquent;

src/Support/Type/TypeHelper.php

@@ -76,7 +76,7 @@ public static function createTypeFromTypeNode(Node $typeNode)
      * @param  Node\Arg[]  $args
      * @param  array{0: string, 1: int}  $parameterNameIndex
      */
-    public static function getArgType(Scope $scope, array $args, array $parameterNameIndex, Type $default = null)
+    public static function getArgType(Scope $scope, array $args, array $parameterNameIndex, ?Type $default = null)
     {
         $default = $default ?: new UnknownType("Cannot get a type of the arg #{$parameterNameIndex[1]}($parameterNameIndex[0])");