Rust Programming

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Rust Pro Tips (collection) (geeklaunch.io)

submitted 1 year ago by [email protected] to c/[email protected]

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Whenever I encounter an interesting Rust programming technique, I add it to this blog post. I've amassed a bit of a collection. Hopefully someone finds it interesting and useful!

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[–] calcopiritus 2 points 1 year ago (1 children)

In tip #3 I don't see any benefit of doing impl AsRef<[T]> over &[T]

[–] [email protected] 1 points 1 year ago (1 children)

@calcopiritus @hatchet That way you can pass a reference or anything that can be turned into a reference as an argument. So the caller can supply a &T, Box, Rc, Arc, … (I dont’t know if there is a blanket impl so that even T itself will work.

[–] [email protected] 1 points 1 year ago

Well, actually I would tend to agree that &[T] is preferable to AsRef in most cases; all of the smart pointers you mentioned can also easily be turned into plain references. I probably could have chosen a better example.