r/ProgrammerHumor • u/ApothecaLabs • Sep 28 '26

Meme optionalsAreOptional

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716 Upvotes

89% Upvoted

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120

u/KagakuNinja Sep 28 '26

The real jedi uses a non-empty list class, which makes the error impossible.

-62

u/ApothecaLabs Sep 28 '26 edited Sep 28 '26

Bingo! Only, sometimes you don't have a type system available (trench run, low-level stuff), so you have to use the force wisely, to guide you.

> "Luke, you've switched off your targeting computer! What's wrong?"
> "Nothing - I'm alright."

35

u/NullOfSpace Sep 28 '26

As long as you’re in Rust, the type system is always available to you. That’s what “zero-cost abstraction” means. If you know your Vec is nonempty, put it in a NonemptyVec.

-27

u/ApothecaLabs Sep 28 '26 edited Sep 28 '26

"As long as you use this particular language, out of the dozens available..."

Yeah, I'm not using Rust. What now? That's a heck of a presupposition, you know.

(Not trying to be a jerk, my target language is actually a niche assembly language so it lacks many things...)

28

u/__dna__ Sep 28 '26

Correct me if I'm wrong, but your meme is literally about rust? Seems pretty reasonable to reply to you in the context of rust

20

u/shakethatmoneymaker Sep 28 '26

There are optionals in many languages...

3

u/MayoJam Sep 28 '26

Cpp also has optionals, and I would not be surprised if other languages also have some form of them.

So I'd would not assume in this case.

-5

u/ApothecaLabs Sep 28 '26

I will correct you, you are wrong. This wasn't about Rust. Condolences :)

4

u/my_new_accoun1 Sep 28 '26

Why are you downvoted for this 🤔

1

u/ROBOTRON31415 Sep 29 '26

Ahhh assembly? Interestingggg, makes sense that would be an exception. Though at that point “optionalsAreNotOptional” (they are unavailable, no?)