Re: FFI: c/c++ struct on stack as an argument or return value

On Tue, 18 Mar 2014 20:31:19 +0300 Yuras Shumovich wrote:

Hi,

I thought I have lost the battle :) Thank you for the support, Simon!

I'm interested in full featured solution: arguments, return value, foreign import, foreign export, etc. But it is too much for me to do it all at once. So I started with dynamic wrapper.

The plan is to support structs as arguments and return value for dynamic wrapper using libffi; then implement native adjustors at least for x86_64 linux;

On a positive side there is only 2 arches supporting native adjustors that actually work these days: ArchHasAdjustorSupport = $(if $(findstring $(TargetArch_CPP),i386 x86_64),YES,NO)

then make final design decision (tuple or data? language pragma? union support? etc); and only then start working on foreign import.

But I'm open for suggestions. Just let me know if you think it is better to start with return value support for foreign import.

Thanks, Yuras

-- Sergei