• 19 Posts
  • 138 Comments
Joined 9 months ago
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Cake day: February 26th, 2024

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  • Cool, that was an informative read!

    If we were willing to leak memory, then we could write […] Box::leak(Box::new(0))

    In this example, you could have just made a constant with value 0 and returned a reference to that. It would also have a 'static lifetime and there would be no leaking.

    Why does nobody seem to be talking about this?

    My guess is that the overlap in use cases between Rust and C# isn’t very large. Many places where Rust is making inroads (kernel and low-level libraries) are places where C# would be automatically disqualified because of the requirements for a runtime and garbage collection.




  • I don’t know about your workplace, but if at all possible I would try to find time between tasks to spend on learning. If your company doesn’t have a policy where it is clear that employees have the freedom to learn during company time, try to underestimate your own velocity even more and use the time it leaves for learning.

    About 10 years ago I worked for a company where I was performing quite well. Since that meant I finished my tasks early, I could have taken on even more tasks. But I didn’t really tell our scrum master when I finished early. Instead I spent the time learning, and also refactoring code to help me become more productive. This added up, and my efficiency only increased more, until at some point I only needed one or two days to complete a week’s sprint. I didn’t waste my time, but I used it to pick up more architectural stuff on the side, while always learning on the job.

    I’ll admit that when I started this route, I already had a bunch of experience under my belt, and this may not be feasible if you have managers breathing down your neck all the time. But the point is, if you play it smart you can use company time to improve yourself and they may even appreciate you for it.



  • You can use the regular data structures in java and run into issues with concurrency but you can also use unsafe in rust so it’s a bit of a moot point.

    In Java it isn’t always clear when something crosses a thread boundary and when it doesn’t. In Rust, it is very explicit when you’re opting into using unsafe, so I think that’s a very clear distinction.

    Java provides classes for thread safe programming, but the language isn’t thread safe. Just like C++ provides containers for improved memory safety, and yet the language isn’t memory safe.

    The distinction lies between what’s available in the standard library, and what the language enforces.




  • Great suggestions! One nitpick:

    But in principle I find this quite workable, as you get to write your CI code in Rust.

    Having used xtask in the past, I’d say this is a downside. CI code is tedious enough to debug as it is, and slowing down the cycle by adding Rust compilation into the mix was a horrible experience. To add, CI is a unique environment where Rust’s focus on correctness isn’t very valuable, since it’s an isolated, project-specific environment anyway.

    I’d rather use Deno or indeed just for that.



  • I would say at this point in time it’s clearly decided that Rust will be part of the future. Maybe there’s a meaningful place for Zig too, but that’s the only part that’s too early to tell.

    If you think Zig still has a chance at overtaking Rust though, that’s very much wishful thinking. Zig isn’t memory safe, so any areas where security is paramount are out of reach for it. The industry isn’t going back in that direction.

    I actually think Zig might still have a chance in game development, and maybe in specialized areas where Rust’s borrow checker cannot really help anyway, such as JIT compilers.