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A comment on Apple Announces Full Swift Rewrite of the Foundation Framework. Parent comment

Re:Apple Announces Full Swift Rewrite of the Foundation Fram... by mpweiher on Wednesday January 11, 2023 @02:49PM (#34343609)
While this is what a lot of people believe, it happens to not be true.

For more details, see iOS and macOS Performance Tuning: Cocoa, Cocoa Touch, Objective-C, and Swift, Addison-Wesley

https://www.amazon.com/iOS-macOS-Performance-Tuning-Objectiv...

If you don't want to read a book, here is an example as a series of blog posts: https://blog.metaobject.com/2020/04/somewhat-less-lethargic-...

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Re:Apple Announces Full Swift Rewrite of the Foundation Fram... by klodolph on Wednesday January 11, 2023 @02:59PM (#34343764)
I read the blog post, but it just seems to provide a single example of a case where some particular piece of Objective C code was faster than the equivalent piece of code in Swift. Maybe there's something I'm missing here... what should I be looking for in these blog posts?
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