this post was submitted on 01 Nov 2023
139 points (96.0% liked)
Programming
17398 readers
146 users here now
Welcome to the main community in programming.dev! Feel free to post anything relating to programming here!
Cross posting is strongly encouraged in the instance. If you feel your post or another person's post makes sense in another community cross post into it.
Hope you enjoy the instance!
Rules
Rules
- Follow the programming.dev instance rules
- Keep content related to programming in some way
- If you're posting long videos try to add in some form of tldr for those who don't want to watch videos
Wormhole
Follow the wormhole through a path of communities [email protected]
founded 1 year ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
How would rust fare any better then a tracing GC? Realistically I'd expect them to use more memory, and also have worse determinism in memory management - but I fail to really see a case where rust would prevent memory leaks and GC languages wouldn't.
If you just Rc everything (which I'd count as "abusing Rc") Rust is significantly worse than a language with a good GC. The good thing about Rust is that it forces you to aknowledge and consider the lifetimes of objects. By default things are allocated on the stack, but if you make something global or dynamically handled (e.g. through Rc) you have to do so explicitly. In Rust the compiler has greater compile time information about when things can be freed which means that you need less runtime overhead to check things and if you want to minimize the amount of potentially long-lived objects you can more easily see how long objects might live by reading the code as well as get help by the compiler to determine if a lifetime-based refactoring is sound or not.