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The linked project also uses Cocoa, and guess what, considering Cocoa itself is written in ObjC, the linked project also uses OBjC “unknowingly”.

Considering CodaFi works for Apple now, he knows. Spoiler: he knew 11 years ago too.

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The OP says it is Cocoa-less in the readme, is that not true?

It's not. Open up any of the .c files and you'll see lots of references to Cocoa. One of the comments refers to Cocoa by name! This is using objc_msgSend to call into Cocoa. You'd have to squint your eyes pretty hard for the claim in the readme to be true. What it doesn't have is Objective-C code, which is different than not having Cocoa.

check out the clang objc rewriter - basically c++front for objc. https://www.jviotti.com/2023/12/01/understanding-objective-c...

Doesn't work anymore, especially because it doesn't support ARC.

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