Go enums are the same as in every single other language. After all, all an enum does is count. There isn't anything more you can do with it.
You can introduce data structures and types that utilize enums, with some languages taking that idea further than others, but that's well beyond enums themselves.
But in defense of Java, modern Java is actually pretty pleasant.
Virtual threads, records and sealed classes, pattern matching, state-of-the-art garbage collectors, a great standard library etc. (and obviously well-behaved enums).
Not to mention the other languages you get for free with the JVM ecosystem.
It might not be as expressive as Rust, but certainly Java/JVM > Go.
No, I don't think HTTP or JSON are cherry-picked. Depending on what kind of code you write, maybe you haven't needed them as often as I have.
Of course, plenty of high-quality third-party libraries exist in the other languages. I've used commons-httpclient and jackson in Java, and everybody and their brother knows about requests in Python (though I prefer aiohttp nowadays). But they are odd omissions from the standard libraries of those languages. At least .NET caught up.
Like what? CrabLang? Its enums are identical to Go, unsurprisingly. Above the enum rests a discriminated union that ends up hiding the details of the enum. That is where things begin to differ greatly. You have to do some real trickery to actually get at the underlying enum result in that language. But, when you do, you see that it is exactly the same.
> and when you type a parameter as a `foo` you're not at risk of getting 69 or 4328.
That's thanks to the type system, though, not enums. Enums are not a type. Enums are a number generator. Hence the name.
> That's thanks to the type system, though, not enums. Enums are not a type. Enums are a number generator. Hence the name.
What's happened here is that you've mistaken "Things I believe" for "What everybody else believes" but you're talking to other people, not yourself, so, this makes you seem like a blithering idiot.
The particular version of this trap you've fallen into is a variation of the "It's all just the machine integers" mental model from C. It's just a model and the problem arises when you mistake that model for reality.
Now, technically this model isn't even correct for C's abstract machine, but it's close enough for many programmers and it tends to match how they think the hardware works, which is even more confusing for the hardware people who know how it actually works but that's another conversation.
This model is completely useless for languages which don't have the same type system, and so it's no surprise that it immediately led you astray.
No, I am clearly talking to a computer program. It is possible that the program is forwarding the discussion on to people. Perhaps that is what you are trying to allude to? The details of how the software works behind the scenes is beyond my concern. There is no intention to talk to other people, even if the software has somehow created that situation incidentally. If I wanted to talk to people, I would go out and talk to people, not type away at my computer into a box given to me by the software.
> The particular version of this trap you've fallen into is a variation of the "It's all just the machine integers" mental model from C.
As much as I enjoy your pet definition that you've arbitrarily made up on the spot here, the particular trap I have fallen into is the dictionary. It literally states what an enumeration is according to the prevailing usage. It does not describe it as a type, it describes it as the action of mentioning a number of things one by one. Which is exactly what an enum does.
The previous comment is talking about type constraints. You can definitely constrain a type such that it is invalid to use it outside of the numbers generated by the enum, just as you can constrain a type to only accept certain strings. e.g. from Typescript: `type Email = "{string}@{string}"` This idea is not limited to enums.
That's definitely a thing, and definitely a thing that could be used in conjunction with an enum, but is not an enum itself. Not as enum is normally used. Of course you can arbitrarily define it however you please. But, if you are accepting of each holding their own pet definition, your comment doesn't work. You can't have it both ways.
Quite right. The entire possible space for enums to explore was exhausted in the age of 1960s assembler. There is only so much you can do with a number generator.
Which, I guess, is why we have this desperate attempt to redefine what an enum is, having become bored with a term that has no invitation potential. But, unfortunately, we have not found shared consensus on what "enum" should become. Some think it should be a constraint, others think it should be a discriminated union, others think a type declaration, so on and so forth.
All of which already have names, which makes the whole thing particularly bizarre. You'd think if someone really feels the need to make their mark on the world by coining "enum" under new usage in the popular lexicon they would at least pick a concept that isn't already otherwise named.
That is probably true, but has little to do with enums, which are concerned with mentioning things one-by-one (i.e. producing values).
It is true that some type system features built upon enums. Like a previous commenter mentioned, Pascal offers a type that constrains allowable values of that type to be within the values generated by the enumerator. Likewise, I mentioned in another discussion that in CrabLang the enumerator value is used as the discriminant in its discriminated union types, which achieves a similar effect. I expect that confuses some people into thinking types and enums are the same thing, which may be what you are trying to get at, although doesn't really apply here. The difference is known to those reading this discussion.
The biggest problem with this desperate attempt to find new meaning for "enum" is: What are we going to call what has traditionally been known as an enum? It does not seem to have another word to describe it.
You can introduce data structures and types that utilize enums, with some languages taking that idea further than others, but that's well beyond enums themselves.