Goenums: Type Safe Enum Generator for Go

(github.com)

32 points | by PaulHoule 1 day ago

2 comments

  • lionkor 19 hours ago
    Wait, Go doesn't have enums? Why not?
    • o11c 18 hours ago
      To be fair, enums represent a different and incompatible concept in every language I know.

      It's possible to support everybody's needs in a single language, but I'm not aware of any language that has done it yet.

    • HideousKojima 19 hours ago
      >The key point here is our programmers are Googlers, they’re not researchers. They’re typically, fairly young, fresh out of school, probably learned Java, maybe learned C or C++, probably learned Python. They’re not capable of understanding a brilliant language but we want to use them to build good software. So, the language that we give them has to be easy for them to understand and easy to adopt.

      - Rob Pike

      • lionkor 18 hours ago
        So they made it easy to have data races in a language all about concurrency, bravo. Not buying it.
      • tyre 17 hours ago
        sorry is the point here that enums are too complicated to understand?
        • pjmlp 11 hours ago
          Apparently, like most modern language features in the last 50 years or so.
    • nsingh2 18 hours ago
      Go seems like such a strange language to me. I like its simple syntax, but it's strange that they compromised and added generics to the language but balk at basic things like sum types, pattern matching and type safe enums. Their simplicity design philosophy seems a bit incoherent.
      • JyB 17 hours ago
        The generics addition is extremely incoherent indeed. Makes sense why there was a lot of push back.
        • hfgjbcgjbvg 14 hours ago
          They never should’ve done it but the way they did do it is the best way they could’ve done it.
      • lionkor 18 hours ago
        They might be trying to do another C, that is so simple that it will be ubiquitous? They're failing to understand that C would never take off it invented today. Go is nowhere on my list of languages I would use - there is simply nothing it's great at. Serialization/deserialization? Rust. Multithreading? Rust. Low level high performance stuff? C, Zig. Quick scripts? Bash, python, JavaScript, Rust. Really fast concurrency? C++ or Rust. Web servers and services? Either nodejs, something static on an existing webserver, or rust for backends.

        I completely fail to see where Go excels. Large, statically linked binaries that aren't even concurrency safe...? Really? No enums? Odd syntax (I like Rust, C++ and Haskell, I find Go's syntax odd still).

        Like so many Google products, it solves a problem that nobody I know has. And I guess they can afford concurrency bugs, who cares, its only a language primarily for concurrency.

        • tacitusarc 18 hours ago
          Have you used Go? Most of your criticisms are, in my experience, incorrect. But ultimately there are tradeoffs, and Go seems to be a divisive language.

          In my experience, Go excels at pushing you towards solving the problem rather than yak shaving. And in my opinion that is worth it’s relatively minor frustrations.

          • pjmlp 8 hours ago
            Many of us that critise Go, no only have been around the ecosystem since the pre-1.0 days, we also happen to have a broad experience in programming languages since the days writing complete applications in Assembly was pretty much daily business.
        • homebrewer 16 hours ago
          It is a passable replacement for CLI utilities (so basically Python or bash) thanks to the rich ecosystem, easy cross-compilation, and static linking, which makes deploying the result easy while also avoiding the horrible mess and pain of handling Python dependencies, or remembering dozens of tiny incompatibilities between various flavors of UNIX utilities.

          Unlike Rust, one is not required to have three digit IQ to use the language, so that's why I've been using it where previously I would have resorted to Python (and then either copy venvs around, or write packages for my packages to ship dependencies of my dependencies).

          I too fail to see why would anybody use it for anything else, especially compilers or more complicated server stuff where you really benefit from having a proper type system, but people do, so I must be missing something...

        • sambeau 17 hours ago
          Go is a tiny language. I can easily hold it all in my head. I don't think I can say that about any other language I've used. Not even C.
        • alpaca128 5 hours ago
          C has tagged unions, though. That's the wild thing about Go, it doesn't even cover all basic C features.
        • pjmlp 8 hours ago
          Even back in its heyday what helped C take off was AT&T not being allowed to profit from their Bell Labs research.

          Do you think UNIX was sold at VMS, MVS, System/360 prices, even with university discounts, every university on the planet would have been rushing to adopt it on their timesharing systems?

          The lawsuits done by AT&T years later, the prohibition of Lion's book, and Sun introducing the concept UNIX developer license, shows how it would have gone.

        • Yasuraka 10 hours ago
          > Web servers and services?

          That's it, mostly. CRUD is also a huge part of the industry, unlike "Serialization/deserialization", which are a means to an end.

          > Either nodejs, something static on an existing webserver, or rust for backends.

          Horrendous choices, I daresay.

          Why do people use Java and C# ?

          • zarldev 6 hours ago
            >That's it mostly...

            Whole kubernetes, docker, traefik and many other cloud native tools are written in go.

        • ironmagma 17 hours ago
          Compilation time is fast, and it’s debuggable. Typescript would be the main competitor in my mind, but compilation with TS is slow and you have no parallelism without native extensions.
        • pjmlp 11 hours ago
          C is only simple in theory.
        • flkenosad 14 hours ago
          It's great for large software projects that need tons of random contributers. For example, Gitea.
        • za3faran 15 hours ago
          It's a better Python, that's where I see most of the real world use cases. After dealing with Python for a while now, I would take golang any day of the week lol. But for backend systems, there are far superior alternatives.
          • pjmlp 8 hours ago
            The only thing it does better than Python is being a compiled language.
    • ikiris 15 hours ago
      it kind of does and doesn't
      • saghm 14 hours ago
        I'm not sure what you mean by this. It definitely doesn't have enums, not even in the C sense of "type alias for integers with names for specific constant values. Yes, it has iota, but that's orthogonal to enums; you could use it to define bitmasks, for example. While you can certainly use it in combination with a type alias to make something resembling an enum, I'd argue that's still not actually "having enums"; you could do the same thing in C with typedefs and constants even if it didn't have enums.
      • pjmlp 8 hours ago
        I hardly consider the iota / const dance meaningful, it is like telling macro assemblers kind of have.

        Granted, Niklaus Wirth removed them from Oberon-07, then again even as big fan of his work, that isn't the Oberon version I prefer, rather Active Oberon.