this post was submitted on 16 Oct 2024
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What are some mind blowing Rust tricks? (programming.dev)
submitted 3 weeks ago* (last edited 3 weeks ago) by little_ferris@programming.dev to c/rust@programming.dev
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If we were to create a Rust version of this page for Haskell, what cool programming techniques would you add to it?

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[–] AsudoxDev@programming.dev 11 points 3 weeks ago (1 children)

What madness caused this

[–] SorteKanin@feddit.dk 22 points 3 weeks ago (1 children)

It's a test for the compiler which ensures that these legal yet extremely weird expressions continue to compile as the compiler is updated. So there is a purpose to the madness but it does still look pretty funny.

[–] nilloc@discuss.tchncs.de 8 points 2 weeks ago

That’s make sense. We used to write some ridiculous tests too, but users still managed to find a way


fn union() {
    union union<'union> { union: &'union union<'union>, }
}

Is my favorite.