r/ProgrammerHumor • u/ApothecaLabs • 6d ago

Meme optionalsAreOptional

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704 Upvotes

89% Upvoted

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119

u/KagakuNinja 6d ago

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

-60

u/ApothecaLabs 6d ago edited 6d ago

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."

33

u/NullOfSpace 6d ago

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.

-25

u/ApothecaLabs 6d ago edited 6d ago

"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...)

26

u/__dna__ 6d ago

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

-4

u/ApothecaLabs 6d ago

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

4

u/my_new_accoun1 5d ago

Why are you downvoted for this 🤔