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Comment by fp64 | Hacker News Reader

Odin has some helpers, was one of the more interesting features I found, but never tried. Not sure if you want to consider Odin OO, but well https://odin-lang.org/docs/overview/#soa-struct-arrays

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Odin is heavily inspired by the lang he or she is referring to!

A sibling comment also mentioned Jai. Not sure what I am missing that the original post was explicitly referring to Jai, some inside joke maybe?

I am sorry, I only know Odin. Jai is this cult on reddit/discord, right? You get access if you socialize enough or something? Not my thing. Not for a language.

(original poster here)

I was just throwing out an idea. I had no idea there were already implementations! Because, to my knowledge, conventional popular languages like C/C++/C#/Java/JS/Python don't do that, and automatically doing that (under certain conditions) feels like an easy performance win.

For what it’s worth, a common example of the capabilities of c++26 reflection is exactly this use case. I can’t remember where I first saw it, but this article [0] showcases the technique pretty well. It’s opt-in so not the compiler optimization that you’re imagining but still neat that it’s possible

[0] https://brevzin.github.io/c++/2025/05/02/soa/

Ah. So, the context (Which I read too far into evidently): 1: One of Jai's initial primary marketing points was to address exactly this: SoA performance with AoS ergonomics. 2: Odin is (or was initially) inspired by Jai.

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