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Reading Club: The Book Chs 5 & 6 "Structs and Enums" [PROJECT] (rust-book.cs.brown.edu)
submitted 2 years ago by maegul@lemmy.ml to c/learningrustandlemmy@lemmy.ml
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Finally, we can make our own types (or data structures)!!

This is supplementary/separate from the Twitch Streams (see sidebar for links), intended for discussion here on lemmy.

The idea being, now that both twitch streams have read Chapters 5 and 6, we can have a discussion here and those from the twitch streams can have a retrospective or re-cap on the topic.

This will be a regular occurrence for each discrete set of topics coming out of The Book as the twitch streams cover them

With Ch 4 on the borrow checker out of the way, chapters 5 & 6 feel like the "inflection point" ... the point where we're ready to actually start programming in rust.

Custom types, data structures, objects with methods, pattern matching, and even dipping into rust's traits system and it's quasi answer to class inheritance.

If you're comfortable enough with the borrow checker, you can really start to program with rust now!

I personally didn't think this content was difficult, though it prompts some interesting points and topics (which I'll mention in my own comment below).

  • Any thoughts, difficulties or confusions?
  • Any quizzes stump you?
  • Any major tips or rules of thumb you've taken away or generally have about using structs and enums?
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[-] maegul@lemmy.ml 2 points 2 years ago

Yep. And then you realise that "move semantics" aren't just a safety net that you have to "fight with" but actually a language feature against which you can develop/deploy desirable patterns.

A minor thing I noted reading your code snippets was that I immediately noticed, like at a gestalt level, the lack of ampersands (&) and therefore references and could immediately tell that this was a "faux-O"/pipline style system. Not too bad for a syntax often derided as messy/bad.

this post was submitted on 21 Jun 2024
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