Inherit from FFIOpaqueObject + initialize TypeMap I have a few here: https://github.com/Pharophile/XmppTalk https://github.com/Pharophile/XmppTalk/tree/master/packages/XmppTalk-Externa... https://github.com/Pharophile/XmppTalk/blob/master/packages/XmppTalk-LibStro... HTH Phil On Fri, Nov 30, 2018 at 2:39 PM Alistair Grant <akgrant0710@gmail.com> wrote:

How are opaque(ish) types normally handled in UFFI (or FFI)?

E.g. if I want to use libstuff which defines the following structure:

struct stuffstruct { typeA a; typeB b; } stufftype;

I might know they're integers, but not the size, signed vs. unsigned, etc.

The definitions of typeA and typeB are buried in multiple layers of header files, dependent on #if tests, can be different sizes on different platforms (e.g. Linux vs. MacOS), etc.?

Is this documented somewhere?

Thanks, Alistair