[taneq]

If I'm reading it right, it lets you build Rust libraries so you can use them in iOS programs.

[rapsey]

You can already build for iOS, just not apple tv or watch without bitcode. For building for iphone this is not needed.

[MuffinFlavored]

Libraries only, or can you write native iOS apps 100% in Rust, no Swift?

[quells]

You would need at least a bridging layer (of Objective-C) to so that your app code could use the system frameworks and respond to events (user input, network, sensors, etc).

[Diggsey]

Objective-C shares calling conventions and struct layout with C, so theoretically you could directly call the system frameworks from Rust via extern "C" functions.

[holy_city]

Not even theoretically, the bindings for the runtime are out there [1] with some nifty helper macros.

[1] https://github.com/SSheldon/rust-objc

[MuffinFlavored]

It'd be super cool to see a 100% Rust (with extern "C" calls) Hello, world! iOS compatible app.