It's all done by the tool itself. It uses hsc2hs to calculate the offset and size of the structures, but generating the actual structures is done inside the tool itself.
Regards, Tamar On Sat, Jul 2, 2011 at 1:05 AM, Yves Parès <limestr...@gmail.com> wrote: > This is interesting, > From what I can see, you can automatically mashall haskell datatypes into C > structs. > > Are there portable libraries that do that ? Or do you do this by yourself ? > > > 2011/7/1 Phyx <loneti...@gmail.com> >> >> What is it? >> ======== >> >> A preprocessor and library which allow you to create dynamic libs >> from arbitrary annotated Haskell programs with one click. It also >> allows you to use the generated lib in C, C++ and C# just by including >> the generated header files. >> >> At a minimum it can be considered the inverse of c2hs. >> >> Where to get it? >> ============ >> >> You can get it from Hackage >> (http://hackage.haskell.org/package/Hs2lib) or by using cabal >> (cabal install Hs2lib). >> >> Documentation, Mailing List, Source, etc >> ======================= >> >> Go to http://mistuke.wordpress.com/category/hs2lib/ for information. >> >> What's New? >> ========= >> >> - Currently Supported: >> >> * Generates Marshaling information for arbitrary data types. >> Types with kind other then * have to be fully applied. (e.g. Maybe >> String). >> A specialized Marshaling instance is then generated for each of >> these instances. >> * Generates FFI exports for any function you mark, with FFI compatible >> type >> * Properly supports marshaling of lists. [Int] >> * Supports Ptr, FunPtr and StablePtr. Which introduces the possibility >> to have caches/sessions. >> * Supports Callbacks via Higher order functions (everything is auto >> generated from the function type) >> * Re-exports existing exports found in source file >> * Honors existing Storable instances found for types it needs >> * Avoids unsafePerformIO as much as possible, except for in one >> specific instance. >> * Generates Initialization functions for you >> * Hides unnecessary exports using a DEF file >> * Allows you to override default type conversions (e.g. String –> >> CWString) >> * Provides helper includes for C, C++ and C# (placed into wherever >> cabal places extra includes. %AppData%\cabal\Hs2lib-0.4.8 for windows) >> And more >> >> Details >> ===== >> >> A more detailed documentation will follow in the next few weeks. >> >> Why 0.4.8? >> -------------- >> >> This project has been in development for a very long time. Nearly two >> years on and off. >> It was developed mainly to facilitate the creation of Visual Haskell >> 2010. This is just the first public >> release of this tool. >> >> _______________________________________________ >> Haskell-Cafe mailing list >> Haskell-Cafe@haskell.org >> http://www.haskell.org/mailman/listinfo/haskell-cafe > > _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
