Update Swift example

[TeamPuzel]

Hi! I was browsing the examples and noticed that Swift needed some love. The language improved a lot for low level use cases since this example was written and I thought I'd make it more up to date 🙂

• Converted the example to pure Swift
  • removed the C header thanks to extern support
  • Removed Foundation. It is not portable and unavailable in embedded mode. Creating Swift strings now writes String memory directly, instead of using a complicated objc-bridged data structure.
  • Used naming conventions idiomatic to the language (count vs length etc)
  • Removed free functions in favor of methods and computed properties
• Used the new embedded mode to make binaries portable, tiny, faster and easier to link with
• Used native Swift allocation APIs instead of using libc directly, which is more portable and doesn't require importing anything.
• Removed return keywords in single expression functions
• Used native pointer types instead of integers

Is there somewhere else I have to modify to build using the new flags?

Where can I find any resources/documentation I'd need if I wanted to implement a library for seamless Swift/Roc integration? I saw that Rust and Zig have some "glue" code but Swift does not appear to, it would be fun to write if that's useful 🙂

[lukewilliamboswell]

Oh cool. I need to check this out.

I started a template repository to help people get started, but my swift knowledge is lacking.

https://github.com/lukewilliamboswell/roc-platform-template-swift

[lukewilliamboswell]

If you're interested in Swift glue, I'd love to help you get started. DM me on zulip maybe would be best.

I started this repository to try and organise glue better.

https://github.com/lukewilliamboswell/roc-glue-code-gen

[TeamPuzel]

If you're interested in Swift glue, I'd love to help you get started. DM me on zulip maybe would be best.

Sure, I'll do that tomorrow 👍🏻