Add example allOf with single ref (#10948)

* Add example allOf with single ref

* fix dart-dio-next handling of that case

* Refactor without vendor extension

* Regenerate newer samples

samples/client/petstore/javascript-promise-es6/src/index.js

@@ -59,6 +59,7 @@ import Return from './model/Return';
 import SpecialModelName from './model/SpecialModelName';
 import Tag from './model/Tag';
 import User from './model/User';
+import UserType from './model/UserType';
 import AnotherFakeApi from './api/AnotherFakeApi';
 import DefaultApi from './api/DefaultApi';
 import FakeApi from './api/FakeApi';
@@ -382,6 +383,12 @@ export {
      */
     User,
 
+    /**
+     * The UserType model constructor.
+     * @property {module:model/UserType}
+     */
+    UserType,
+
     /**
     * The AnotherFakeApi service constructor.
     * @property {module:api/AnotherFakeApi}

samples/client/petstore/javascript-promise-es6/src/model/User.js

@@ -12,6 +12,7 @@
  */
 
 import ApiClient from '../ApiClient';
+import UserType from './UserType';
 
 /**
  * The User model module.
@@ -71,6 +72,9 @@ class User {
             if (data.hasOwnProperty('userStatus')) {
                 obj['userStatus'] = ApiClient.convertToType(data['userStatus'], 'Number');
             }
+            if (data.hasOwnProperty('userType')) {
+                obj['userType'] = ApiClient.convertToType(data['userType'], UserType);
+            }
         }
         return obj;
     }
@@ -119,6 +123,11 @@ User.prototype['phone'] = undefined;
  */
 User.prototype['userStatus'] = undefined;
 
+/**
+ * @member {module:model/UserType} userType
+ */
+User.prototype['userType'] = undefined;
+
 
 
 

samples/client/petstore/javascript-promise-es6/src/model/UserType.js

@@ -0,0 +1,46 @@
+/**
+ * OpenAPI Petstore
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * 
+ *
+ * NOTE: This class is auto generated by OpenAPI Generator (https://openapi-generator.tech).
+ * https://openapi-generator.tech
+ * Do not edit the class manually.
+ *
+ */
+
+import ApiClient from '../ApiClient';
+/**
+* Enum class UserType.
+* @enum {}
+* @readonly
+*/
+export default class UserType {
+    
+        /**
+         * value: "admin"
+         * @const
+         */
+        "admin" = "admin";
+
+    
+        /**
+         * value: "user"
+         * @const
+         */
+        "user" = "user";
+
+    
+
+    /**
+    * Returns a <code>UserType</code> enum value from a Javascript object name.
+    * @param {Object} data The plain JavaScript object containing the name of the enum value.
+    * @return {module:model/UserType} The enum <code>UserType</code> value.
+    */
+    static constructFromObject(object) {
+        return object;
+    }
+}
+