Nice. Can we possibly complement it with a test case? Do you have a usage example?

actually, I am also wondering how this macro is intended to be used. currently, I am only using this macro as a reference for how to load a Module.

I am working on something that runs R inside c++, to use this Macro directly, it needs to be changed to something like LOAD_RCPP_MODULE(NAME, SEXP) ..... SEXP=Rf_eval(...), then I can write following code
RInside R(argc, argv); LOAD_RCPP_MODULE(Test, R['Test'])

anyone knows why this macro was added in the first place?

How Modules get loaded changed once (basically from the R side). This macro may or may not predate that change, I am not sure at the moment. I always trigger the load from the R side.

What name+email should I use for you in the ChangeLog?

you can use Lei Yuleiyu_1981@qq.com.

I am working on something that needs to load module from the c++ side. I have to assign the value returned by Rf_eval in the macro to something like R['my_own_module'] to use it. if it can be used directly(no need to assign the return value to something), the macro is useful when it comes to loading module in c++.