added nested ref

Author: mertcanaltin

test/js-native-api/6_object_wrap/6_object_wrap.cc

@@ -10,7 +10,10 @@ napi_ref MyObject::constructor;
 MyObject::MyObject(double value)
     : value_(value), env_(nullptr), wrapper_(nullptr) {}
 
-MyObject::~MyObject() { napi_delete_reference(env_, wrapper_); }
+MyObject::~MyObject() {
+  napi_delete_reference(env_, nested_);
+  napi_delete_reference(env_, wrapper_);
+}
 
 void MyObject::Destructor(node_api_basic_env env,
                           void* nativeObject,

test/js-native-api/6_object_wrap/myobject.h

@@ -23,6 +23,7 @@ class MyObject {
   double value_;
   napi_env env_;
   napi_ref wrapper_;
+  napi_ref nested_;
 };
 
 #endif  // TEST_JS_NATIVE_API_6_OBJECT_WRAP_MYOBJECT_H_