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I love Rust (lemmy.blahaj.zone)
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[-] Gonzako@lemmy.world 4 points 2 days ago

I've only had to implement equality in C# but that didn't seem that hard of a problem. you just expand the operator = function

[-] porous_grey_matter@lemmy.ml 9 points 2 days ago

It's not hard, just if you're doing it for a struct with a lot of fields it's a lot of boilerplate

[-] GetOffMyLan@programming.dev 1 points 2 days ago* (last edited 2 days ago)

I just use the HashCode class and compare the results.

Pretty sure there's a source generator for it as well nowadays.

[-] Deckweiss@lemmy.world -5 points 2 days ago* (last edited 2 days ago)

My IDE can do that for me. And it was able to do that pre AI boom. Yes, the code ends up more verbose, but I just collapse it.

So from a modern dev UX perspective, this shouldn't be a major difference.

[-] kazaika@lemmy.world 1 points 1 day ago

What if youre working with library types? The problem is not not you compare a bunch of fields but that the implementation on those members is most likely bad.

[-] porous_grey_matter@lemmy.ml 3 points 2 days ago

Even if the tool works perfectly, you have to run it every time you change something. It's not the end of the world, but it's still much nicer to just have a macro to derive it at compile time.

[-] copygirl@lemmy.blahaj.zone 5 points 2 days ago

Then you should also override Equals(object), GetHashCode, and implement IEquatable<T>.

Thankfully a lot of the usual boilerplate code can be avoided using a record class or struct:

public record Person(string Name, uint Age);
[-] Gonzako@lemmy.world 1 points 2 days ago

Oh well, It does show how little I do have to actually use that. It just hasn't come up that much

this post was submitted on 15 Nov 2024
211 points (94.1% liked)

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