TWiR quote of the week

Rust is funny because in one sense it's hard and clunky. However, it's only ever precisely as hard and clunky as it needs to be . Everywhere something can be made more concise, or readable, or convenient, without sacrificing any control, it has been. Anytime something is hard or inconvenient, it's because the underlying domain really is exactly that hard or inconvenient.

Contrast this with other languages, which are often clunky when they don't need to be and/or "easy" when they shouldn't be.

brundolf on Hacker News


Incidentally, having suffered under the limitations of coherent typeclasses while programming in Rust, I at least personally think they are far more trouble than they’re worth.

Although probably a proper quote would have to be the whole three paragraphs - rather too long for QOTW.

1 Like

That's not hacky, that's ... like fishing with dynamite charges. I like it.
I use a similar method when I am trying to debug (I call it "make the program explode in useful ways").

this comment by /u/otikik on the Rust subreddit


And as others have pointed out, you might think this unsafeness is just limited to the ketchup domain, but months later you'll be finding ketchup splattered thousands of lines of code away.


I think it should also have the comment it's replying to for context but, otherwise, it's a fun quote:

It is unsafe to cut the ketchup bottle in two so that two people can squeeze the two portions at the same time, but you might need to do that for a particularly large bottle of ketchup.


From "Ben" on Zulip:

Meta-Comment: I started this topic as someone completely uninvolved in the rust project. It's very reassuring seeing the nature of the response. Even knowing how fantastic the Rust community is, I was still prepared to be met with at least a small element of condescension given the nature of this issue. I haven't felt any sense of it. It's amazing. Anyone that has impact on the community culture deserves credit: This sort of experience doesn't come from nowhere. It comes from a long history of many people nudging things in the right direction.
Thank you.


From @3sbk :


This is not from this week, rather almost 3 months old, but, as usual, I like it when key ideas are expressed in a concise way:


I don't believe we allow negative cost abstractions.

bjorn3 on github:


In many cases, it is possible to completely rearchitect the underlying code while leaving the public API as-is, and without introducing new bugs. I've literally never had such a liberating experience with refactoring until Rust.

In other words, I have never been so productive in any other language. Dynamic languages like JavaScript and Python are the least productive by far . Code runs, tests pass, put it into production and... uncaught exception! Time to rollback and redo that whole dance AGAIN . With Rust, we take care of all of that crap while actually writing the code the first time. No more surprise 3am wake up calls. That is productivity.

@parasyte in Rust language efficacy and productivity - #10 by parasyte


From twitter:

mate it's like when you and the lads are on discord givin em classic bants but you wanna bang out some code and you're thinkin gems or eggs but your mate Yehuda who's a LEDGE AND A HALF says nah mate let's grab some crates and get our borrows checked and you're like SORTED


From Reddit:

it was a pleasure even to just watch source code compile

We take great pride in our long compile times for a reason :wink:


This viewpoint is very controversial, and I have no capacity to debate it with anyone who disagrees with me. But Rust has a very powerful macro system, so I don’t have to.

From withoutboat's "From failure to Fehler"


The reason why I think it makes sense to prioritize perf over everything except safety is that, if Rust is not the fastest high-level programming language, important systems will be implemented in a faster, unsafe language.



Saw this on Reddit ( from a new Rustacean on how they feel learning Rust:

I'm a snowboarder that's learning how to ski. I have no idea why I have this extra thing on my other foot or poles in my hands. Also, I keep falling. I know eventually it gets better.


I thought Steve's comment below was really inspiring and belies the "can do" attitude of the Rust project. Not sure how you'd capture it in a single quote though.


"You can't just call everything undefined behavior!"
"haha unsafe go brrr"

Josh Triplett in Zulip


What's special about UB is that it attacks your ability to find bugs, like a disease that attacks the immune system. Undefined behavior can have arbitrary, non-local and even non-causal effects that undermine the deterministic nature of programs. That's intolerable, and that's why it's so important that safe Rust rules out undefined behavior even if there are still classes of bugs that it doesn't eliminate.

@trentj in Newbie learning how to deal with the borrow checker - #11 by trentj


Not a Rust quote and I don't mean to bash on C++ but this made me chuckle:

"Whenever I program in C++ I feel like I'm building a sports car out of duct tape"

Ask Math Anything with Po-Shen Loh - 04/14 Tue