On Tue, Nov 20, 2012 at 11:01 AM, Ilya Portnov
Please take a look at http://hackage.haskell.org/package/hs-java also. It's an assembler/disassembler of Java bytecode and *.class files. Moreover, there is https://github.com/MateVM/MateVM — an (experimental) Java VM on Haskell :) So, if you are interested in haskell/java interop, maybe we could integrate our efforts.
To elaborate the current state of MateVM a bit: We implement methods declared as native in Java by either IO Haskell functions or C functions. You can hook a Haskell function here in the source [1]. There're already some examples. Drawbacks are: (1) you have to mess around with the internal object layout if you want to pass values, which is JVM specific (2) it is *not* the standard way, i.e. it isn't like in JNI defined (3) we'll probably change the interface sooner or later ;) If you want to play around, you're welcome. But if you need something stable, don't use MateVM at the moment :-) it's like two man-years away from something productive usable. Bernhard [1] https://github.com/MateVM/MateVM/blob/master/Compiler/Mate/Runtime/MethodPoo...