Hi Holger, The yaml should be easy enough to generate (if you can create a list then yaml::as.yaml will dump out suitable yaml probably). While yaml is used for the configuration now, it's not essential to how the package works.
I did look into generating the interface from something like roxygen comments - https://github.com/richfitz/RcppR6/issues/1 I think with the same reading list as Whit suggested. There are some starts there that I haven't looked at in a long time, mostly in this repo: https://github.com/richfitz/cppinfo In the end it was not too unpleasant just to write the yaml out so I gave up on it. If you have a lot of classes though, there is a lot of yaml - this was from the project that motivated the package. https://github.com/traitecoevo/plant/blob/master/inst/RcppR6_classes.yml With a decent access to something that can parse C++ you could get at a lot of the type information, but it's a lot of work and corner cases, especially once you deal with templated classes ¯\_(ツ)_/¯ Cheers, Rich On Fri, Feb 5, 2016 at 1:44 PM Whit Armstrong <armstrong.w...@gmail.com> wrote: > I've been thinking for a while about using clang to do source-to-source > translation to generate the R bindings for a given c++ class. > > There are lots of examples online, but I haven't yet tackled this for R. > > > http://eli.thegreenplace.net/2012/06/08/basic-source-to-source-transformation-with-clang > > http://stackoverflow.com/questions/28711580/how-to-write-a-source-to-source-compiler-api > http://szelei.me/code-generator/ > etc. > > good luck! > > -Whit > > > On Fri, Feb 5, 2016 at 7:58 AM, Holger Hoefling <hhoef...@gmail.com> > wrote: > >> Hi, >> >> I am trying to write a package that exposes a large number of C++ classes >> from an external project to R and was looking into how to lighten the >> workload. Dirk already pointed my to the RcppR6 package, which looks really >> useful. >> >> However, even this would require to write quite a bit of yaml to achieve >> this. So, is there a converter (e.g. based on doxygen xml) that can help >> with the yaml writing? >> >> Does anyone have more experience and can give pointers on how to best >> approach this problem? >> >> Also, how best to handle multiple inheritance in this context? >> >> Thanks a lot for anyone's help! >> >> Holger >> >> _______________________________________________ >> Rcpp-devel mailing list >> Rcpp-devel@lists.r-forge.r-project.org >> https://lists.r-forge.r-project.org/cgi-bin/mailman/listinfo/rcpp-devel >> > > _______________________________________________ > Rcpp-devel mailing list > Rcpp-devel@lists.r-forge.r-project.org > https://lists.r-forge.r-project.org/cgi-bin/mailman/listinfo/rcpp-devel
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