If we look at the source code for hscCompileCore, it would seem that it creates a ModGuts with mkModGuts which has an empty mg_exports, which means that in all cases there will be no exported items. So it's not very useful! You should file a bug.
We should fix this, but in the mean time, you could simply copypaste the definition of hscCompileCore, and modify it so that you do set up the ModGuts correctly with a real mg_exports field. Edward Excerpts from Marek Wawrzos's message of 2015-10-08 07:22:01 -0700: > Hello, > > I'm trying to compile some module with GHC API. I'm going to feed GHC with > Core generated by me. > > So far is noticed, that function compileCoreToObj ends with an runtime > error on each call. In spide of this function produces some *.o and *.hi > files. However, produced interface file does not contain any item in > exports field, what makes compiled module unusable. > > Because of this problem, I tried to achieve my goal by using steps > described here: https://wiki.haskell.org/GHC/As_a_library (the second > example) > I was able to print out Core produced form file. If I'm not wrong, > modifying structures passing on between sequent calls does not effect on > produced *.hi and *.o files. Both files are generated by `load > LoadAllTargets' call, and further calls (parseModule, loadModule, ...) does > not effect on generated files. > > Could You give me any advices in that topic? Am I right about > compileCoreToObj and functions mentioned above? > > Best Regards, > Marek _______________________________________________ ghc-devs mailing list ghc-devs@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-devs