C#•3y ago

❔ instanciable enum?

i know C# has all these cool tricks, does it have enum instances? i know it sounds dumb, but i mean like Walking sprinting and sneaking have diff speed values for each creature but each creature only has walk sneaking and sprinting making a single enum perfect

Thinker•4/25/23, 1:49 PM

Can you give an example? Enums already have instances, one for each value in the enum.

LvgraefOP•4/25/23, 1:50 PM

well yes, but what i mean is more like, you have an enum called movement, which holds Sprint, Walk and Sneak, with values Sprint, 5
Walk 3, Sneak 1

there is also a cheeta which has the same enum but Sprint 30 Walk 15 and Sneak 3

LvgraefOP•4/25/23, 1:51 PM

and im wondering if there is a neat way of diong that

LvgraefOP•4/25/23, 1:51 PM

im quite new to C# and so far im amazed with all the neat little things it has

Thinker•4/25/23, 1:51 PM

Sounds like you want a class more than an enum

LvgraefOP•4/25/23, 1:51 PM

i guess a switch would work too but

LvgraefOP•4/25/23, 1:51 PM

well i already have a class

LvgraefOP•4/25/23, 1:51 PM

LvgraefOP•4/25/23, 1:52 PM

the thing is i could make a class but then i would have to create seperate instances for sneaking sprinting and walking

Axiss•4/25/23, 1:52 PM

enums are a compiler trick for the underlying type, so no they can't have different values.

Thinker•4/25/23, 1:53 PM

You could have a StatsStats class, sort of like this (using a record for brevity):

record Stats(int Walk, int Sneak, int Sprint);

record Stats(int Walk, int Sneak, int Sprint);

Then when creating a cheetah you could give it a new Stats(3, 1, 5)new Stats(3, 1, 5).

LvgraefOP•4/25/23, 1:54 PM

oh C# has records too

LvgraefOP•4/25/23, 1:54 PM

nice

TheRanger•4/25/23, 1:54 PM

and structs

LvgraefOP•4/25/23, 1:54 PM

i mean ye that would work then i guess

Thinker•4/25/23, 1:54 PM

Well depends on what you're comparing them to

LvgraefOP•4/25/23, 1:54 PM

i knew the structs

LvgraefOP•4/25/23, 1:54 PM

but i dont see me using structs soon

LvgraefOP•4/25/23, 1:54 PM

i guess they are just an immutable map

Thinker•4/25/23, 1:54 PM

records are just sugar for classes and structs

TheRanger•4/25/23, 1:54 PM

u can assign values of walk, sneak and print in a struct instance

LLvgraef i guess they are just an immutable map

Thinker•4/25/23, 1:54 PM

That would be more like an ImmutableDictionaryImmutableDictionary

LvgraefOP•4/25/23, 1:55 PM

sorry java mind, its called a dictionary here

LvgraefOP•4/25/23, 1:55 PM

i was thinking of the same thing xD

Thinker•4/25/23, 1:56 PM

Also, C#'s enums aren't really as powerful as Java's

Thinker•4/25/23, 1:56 PM

In C#, enums are essentially just integers with names.

LvgraefOP•4/25/23, 1:57 PM

so they arent their own type?

Thinker•4/25/23, 1:57 PM

well yes they are

Thinker•4/25/23, 1:58 PM

However the underlying data of an enum is just a number

Thinker•4/25/23, 1:58 PM

So they can't store any other data

LvgraefOP•4/25/23, 1:58 PM

WAIT you cant have like a constructor in the enum like in java?

Thinker•4/25/23, 1:59 PM

nope

Thinker•4/25/23, 1:59 PM

Java patented that so now no other languages can use it

LvgraefOP•4/25/23, 1:59 PM

bruh actually?

LvgraefOP•4/25/23, 1:59 PM

thats so dumb T-T

Thinker•4/25/23, 1:59 PM

However, we are hopefully getting proper discriminated unions in C# soon-ish

LvgraefOP•4/25/23, 2:00 PM

idek what that means

TheRanger•4/25/23, 2:00 PM

applying attribute on an enum value is the closest thing u can get probably

LvgraefOP•4/25/23, 2:00 PM

okay but i still need a value thats like 1 value holding multiple things

LLvgraef idek what that means

Thinker•4/25/23, 2:00 PM

essentially what Java has but even more powerful

LvgraefOP•4/25/23, 2:00 PM

a class is so bulky tho

Thinker•4/25/23, 2:00 PM

$unionsdiscussion

TThinker $unionsdiscussion

MODiX•4/25/23, 2:00 PM

https://github.com/dotnet/csharplang/discussions/7010

GitHub

[LDM] - Union Types · dotnet csharplang · Discussion #7010

The following is a summary of discussions held on discriminated unions in C# by members of the C# language design team. It is not a proposal, and it is not the actual meeting notes. Union Types Uni...

TheRanger•4/25/23, 2:01 PM

union, like in c++?

LvgraefOP•4/25/23, 2:01 PM

enums are static?

LvgraefOP•4/25/23, 2:01 PM

or not

TTheRanger union, like in c++?

Thinker•4/25/23, 2:01 PM

union, like in F#

❔ instanciable enum?

Similar Threads

Similar Threads

Similar Threads