Hi Tomas, I've been playing around with DynamicMethod and generating IL at runtime, with varying levels of success. Currently I'm using DynamicMethod to generate the IL to load arguments, load function address, calli and ret. My script gets access to the DynamicMethod object, which gets passed onto a helper CLR method along with arguments for some basic marshalling, before being passed onto DynamicMethod.Invoke.
I've noticed though that calling .Invoke() in this manner is a magnitude times slower than using the equivalant Win32API code. I figure I'm meant to use CreateDelegate instead of Invoke, though I'm not sure how this is meant to work since CreateDelegate expects a delegate type, whose signature isn't known until runtime. Regards, James Tomas Matousek wrote: > I wouldn't recommend using Win32API. It's not well designed interop > library. > > What you need is calli IL instruction. It takes a pointer to a function > and arguments and calls the function. C# doesn't support this so you > need some helpers. You can either emit them at run-time and call them > via delegates (that's what our implementation of Win32API does), or you > can write them in IL, if you know the signatures you need, compile them > to an assembly (ilasm ILHelpers.il /dll /out=ILHelpers.dll) and use the > assembly directly from Ruby (see attached file). > > Tomas -- Posted via http://www.ruby-forum.com/. _______________________________________________ Ironruby-core mailing list Ironruby-core@rubyforge.org http://rubyforge.org/mailman/listinfo/ironruby-core
