[bluegatty]

It's not ARC though. They use fancy threading mechanisms to avoid having to check on every access. Much faster.

[fainpul]

"Swift uses Automatic Reference Counting (ARC) to track and manage your app’s memory usage."

https://docs.swift.org/swift-book/documentation/the-swift-pr...

[bluegatty]

I meant 'not like rust-Arc' :)

... which is what I thought people were referring to.

Yes - it's ref counting, but it's not like 'Arc' at all - ARC is way more thread aware and most 'access' doesn't have to do thread checking. Much faster.

So - using Rust 'Arc' would not be at all like using Swift 'ARC' in the end.

[drzaiusx11]

It is still primarily ARC. There's simply some optimizations in place, but still no real GC. So you'll never get those dreaded pauses at runtime. It COULD be a real rust competitor if a couple issues were addressed, mostly devx (in the standard tooling sense not the misuse of term this article has, meaning expressiveness, correctness, etc. which Swift already has in spades)