| I built a Swift module that imports libobjc2's headers and links against the library. So far, I got it to link against AppKit as well. The first problem that I ran into, for which I am currently unaware of a solution, is that almost all the objc functions use variadic arguments which do not import into Swift.
While I can call a function like objc_msgSend(id, SEL, …), I'm unable to because it's not supported in swift. Are there any solutions using only C imported into Swift that would allow me to call these method?
The suggestion is to use version of the functions that use va_lists instead, but obviously those versions are not present in the library.
- Austin On Jul 29, 2023, at 4:28 PM, Stefan Bidigaray <stefanbidi@gmail.com> wrote:
You can have a look at the code in libs-corebase for an example on how to call method from C code. All the bridge code is in Source/GSObjCRuntime.h. I am very interested in building a bridge between Swift and GNUStep's Objective-C Runtime.
Given that the Objective-C implementation provided by GNUStep doesn't interact directly with Swift as Swift can with Apple's Objective-C runtime, I was wondering if there was a way to call into GNUStep from C. If someone could show me an example of a way to call into GNUStep using either C as a bride though a Swift project or directly from Swift, I would be more than willing to start building a bridge. I just don't currently understand how to do it.
I malignly want to do this so I could more rapidly build software for OnFlapp's GNUStep Desktop, but I think this would ultimately benefit everyone.
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