• quant@leminal.spaceEnglish
      2·
      48 minutes ago
      public static void main(String[] args)
public static void main(String[] args)
public static void main(String[] args)

      Am I summoning the flying spaghetti monster?

  • arrakark@10291998.xyzEnglish
    7·
    12 hours ago

    I straight up never got a nice answer from StackOverflow on this. Say you have 5 classes, each requiring access to the data members/functions of the others. What’s a nice way to solve this problem? I’ve thought of only two nice methods:

    • Pass pointers/shared-pointers etc to each class, but not through the constructor but a setter function
    • Pass lambdas or std::function everywhere. Yuck! Still doesn’t put each object in a valid state in the constructor.
    • ☆ Yσɠƚԋσʂ ☆@lemmy.mlOP
      8·
      8 hours ago

      The. real question is whether this problem needs to be modelled using classes in the first place. The alternative is to just have a set of composable functions that take a piece of data and return a modified version that can be passed to a different function.

    • Kayana@ttrpg.network
      11·
      11 hours ago

      Well, what problems are you trying to solve by having the classes all access each other’s data members? Why is that necessary?

  • four@lemmy.zipEnglish
    23·
    23 hours ago

    I misread Exceptioncatcher as Exceptionhatcher and I think it still fits

    • xthexder@l.sw0.com
      5·
      13 hours ago

      I believe the lifecycle goes ExceptionLayer, ExceptionIncubator, ExceptionHatcher

      It’s critical you don’t throw your exceptions too early, they need to learn to fly first 🤣

  • undefined@lemmy.hogru.chEnglish
    9·
    20 hours ago

    Feeling attacked with Leggable and Fleable. I’ve been known to write a concern or two in Ruby on Rails but what can I say? I like my code DRY.

    • ImplyingImplications@lemmy.ca
      281·
      23 hours ago

      Functional Programming Theory: 500 pages of lambda calculus and endofunctors

      Functional Programming Practice: Quicksort

      • ☆ Yσɠƚԋσʂ ☆@lemmy.mlOP
        8·
        22 hours ago

        There’s plenty of real world code written in functional languages. Also, this idea that FP is somehow more complex is complete nonsense. Lisp family are some of the easiest languages to learn.

    • four@lemmy.zipEnglish
      11·
      23 hours ago

      Functional programming is perfect for all my projects that I don’t start!

      • balsoft@lemmy.mlEnglish
        3·
        13 hours ago

        TBH Rust is pretty nice, it borrows (pun intended) a lot of ideas from the functional world (algebraic data types, traits, closures, affine types to an extent, composition over inheritance, and the general vibe of type-driven development), but it’s much easier to write fast, efficient code, integrate with decades of libraries in imperative languages, and the ecosystem somehow feels mature already.

        • ☆ Yσɠƚԋσʂ ☆@lemmy.mlOP
          3·
          8 hours ago

          Rust solves a specific problem, and it’s good at letting you write correct programs with low resource usage. It’s definitely a huge improvement on C and C++.

          That said, I find a language like Clojure is far more productive because it’s more expressive, and development is done interactively. With Clojure, you start up your program, connect the editor to it, and evaluate code as you go seeing changes live. Once you’ve worked this way, it’s really hard to go back to having to compile your whole program each time you want to see what it’s doing. It’s like having a conversation with the compiler. It makes it very easy to experiment with different ways to solve a problem, and it gives a lot of confidence because you always see exactly what the code is doing. Clojure also interops with JVM and Js runtimes, so those entire ecosystems are available for use.

          Incidentally, there’s a Lisp style language that embraces a lot of Rust principles. https://github.com/carp-lang/Carp

          • balsoft@lemmy.mlEnglish
            1·
            6 hours ago

            I agree that they fit different niches! My point was that with modern CPU architectures, imperative languages make it much easier to write fast&efficient code just because the hardware was pretty much engineered with C in mind. IMHO Rust offers the best of both worlds when it comes to systems/low-level dev.

              • balsoft@lemmy.mlEnglish
                1·
                2 hours ago

                Modern C compilers are a fascinating blend of functional and imperative, that’s true; and I didn’t say that C is “close to how the modern architectures work”. However, mainstream modern architectures are almost always engineered with C in mind primarily, and this is also acknowledged in the article you’ve linked. Rust, having a lot of similarities to C in terms of its underlying memory model, calling conventions, and control flow primitives, can often benefit from those hardware patterns and optimizations in a way that’s more difficult to replicate with a functional language (especially so given most of them are GC-d due to their memory model). The closest I’ve seen in terms of easy-to-write-quick-code is OCaml, but even there the fast paths are often written in a very much imperative style. Idris2 also seems promising if they manage to get a GC-less mode working. Maybe also Roc, but I’ve not taken a look at it yet.

                Note that I write all of this as someone spending a lot of their work time programming in a functional language (Haskell), with Rust being mostly for hobby stuff. It just always surprises me how much easier it is to write fast code in Rust, and yet also how much of my Haskell intuition was applicable when I was learning it.

                • ☆ Yσɠƚԋσʂ ☆@lemmy.mlOP
                  1·
                  1 hour ago

                  Typically this is true, but it’s certainly possible to get comparable performance with functional style. Carp, which I linked above, basically uses the same approach to memory management as Rust. It doesn’t rely on GC.

                  I also find that for most cases it really doesn’t matter all that much unless you’re in a specific domain like writing drivers, making a game engine, etc. Computers are plenty fast nowadays, and ergonomics tend to be more important than raw performance.