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What are some mind blowing Rust tricks? (programming.dev)

submitted 1 day ago* (last edited 1 day ago) by [email protected] to c/[email protected]

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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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[–] LPThinker 6 points 22 hours ago (1 children)

This could be done almost trivially using the typestate pattern: https://zerotomastery.io/blog/rust-typestate-patterns/.

[–] solrize 1 points 13 hours ago* (last edited 13 hours ago)

Neat that looks interesting. There's a similar Haskell idiom called session types. I have a bit of reservation about whether one can easily use Rust traits to mark out the permissible state sets that an operation can take, but that's because I don't know Rust at all. I do remember doing a hacky thing with TypeLits in Haskell to handle that. Basically you can have numbers in the type signatures and do some limited arithmetic with them at type level. I'd be interested to know if that is doable in Rust.