this post was submitted on 13 Aug 2023
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Rust

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What should the getter for a Vec|String| return, &[&str]? What about Option|Vec|String||? (self.rust)
submitted 1 year ago* (last edited 1 year ago) by jpfreely to c/rust
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When returning an immutable reference to a private struct field. (On mobile and used vertical bars instead of a bunch of HTML codes)

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[–] [email protected] 2 points 1 year ago

In the context of vectors I prefer my APIs to return an empty set rather than an None-option. This makes handling it much easier because you can still iterate over it, it just has nothing.

I can see that argument. But you can also iterate over an Option-wrapped response with something like for x in xs.into_iter().flatten() { ... }, and the Option gives you an extra bit of information that can be helpful in certain cases.