Added vendorExtensions.x-isPrimitive. (#7991)

* Added vendorExtensions.x-isPrimitive.

Switch template for constructFromObject.

* Reflect review indication.

Author: satoshi

modules/swagger-codegen/src/main/java/io/swagger/codegen/languages/JavascriptClientCodegen.java

@@ -794,6 +794,11 @@ public CodegenModel fromModel(String name, Model model, Map<String, Model> allDe
             if (mm.getAdditionalProperties() != null) {
                 codegenModel.vendorExtensions.put("x-isMap", true);
                 codegenModel.vendorExtensions.put("x-itemType", getSwaggerType(mm.getAdditionalProperties()));
+            } else {
+                String type = mm.getType();
+                if (isPrimitiveType(type)){
+                    codegenModel.vendorExtensions.put("x-isPrimitive", true);
+                }
             }
         }
 
@@ -878,6 +883,11 @@ private boolean isModelledType(CodegenOperation co) {
         return !Boolean.TRUE.equals(co.returnTypeIsPrimitive);
     }
 
+    private boolean isPrimitiveType(String type) {
+        final String[] primitives = {"number", "integer", "string", "boolean", "null"};
+        return Arrays.asList(primitives).contains(type);
+    }
+
     @SuppressWarnings("unchecked")
     @Override
     public Map<String, Object> postProcessOperations(Map<String, Object> objs) {

modules/swagger-codegen/src/main/resources/Javascript/partial_model_generic.mustache

@@ -36,6 +36,12 @@
    * @return {{=< >=}}{module:<#invokerPackage><invokerPackage>/</invokerPackage><#modelPackage><modelPackage>/</modelPackage><classname>}<={{ }}=> The populated <code>{{classname}}</code> instance.
    */
 {{/emitJSDoc}}
+{{#vendorExtensions.x-isPrimitive}}
+  exports.constructFromObject = function(data, obj) {
+    return data;
+  }
+{{/vendorExtensions.x-isPrimitive}}
+{{^vendorExtensions.x-isPrimitive}}
   exports.constructFromObject = function(data, obj) {
     if (data){{! TODO: support polymorphism: discriminator property on data determines class to instantiate.}} {
       obj = obj || new exports();
@@ -48,6 +54,7 @@
 {{/vars}}    }
     return obj;
   }
+{{/vendorExtensions.x-isPrimitive}}
 {{#useInheritance}}{{#parentModel}}
   exports.prototype = Object.create({{classname}}.prototype);
   exports.prototype.constructor = exports;