rust-playground VS panamax

That would be true if you used `Vec::clear` too, it doesn't allocate a new vector. My point was that you still end up running Drop implementations with RepeatedField, just not all at once. See https://play.rust-lang.org/?version=stable&mode=debug&editio...

That's a valid Unix path, but rust's quoting does nothing to stop it: https://play.rust-lang.org/?version=stable&mode=debug&editio...

Self-referential structs work fine in Rust and always have.

https://play.rust-lang.org/?version=stable&mode=debug&editio...

The compiler will correctly prevent you from moving the value.

The other way to have a struct that starts out as non-self-referential and then becomes self-referential can be achieved with `unsafe` and `Pin::new_unchecked`, which is how `async {}` is handled.

In rust as currently stands: https://play.rust-lang.org/?version=stable&mode=debug&editio...

On the other hand, both this wrapper and yours are counterproductive if the element size is dynamic (e.g. perhaps you're dealing with some nonsense like:)

    struct ITableColumn {

Overflow checks turn into two's compliments' wrapping, but that's only considered acceptable because bounds checks are not turned off.

https://play.rust-lang.org/?version=stable&mode=release&edit...

I have no idea what you're talking about, but it sounds unnecessarily complicated and why I don't use Rust for any serious work.

This demonstrates the ABA problem in safe Rust: https://play.rust-lang.org/?version=stable&mode=debug&editio...

Substitute the sleep with a combination of doing computation/work and the OS thread scheduler, and you can see how the bug surfaces.

You can also try Rust online using the Rust playground: https://play.rust-lang.org/

(Click ... beside build to get assembly) https://play.rust-lang.org/?version=stable&mode=release&edit...

Unfortunately the go playground doesn't seem to support emitting assembly?

Mystified about strings? Borrow checker have you in a headlock? Seek help here! There are no stupid questions, only docs that haven't been written yet. Please note that if you include code examples to e.g. show a compiler error or surprising result, linking a playground with the code will improve your chances of getting help quickly.

If you have a StackOverflow account, consider asking it there instead! StackOverflow shows up much higher in search results, so having your question there also helps future Rust users (be sure to give it the "Rust" tag for maximum visibility). Note that this site is very interested in question quality. I've been asked to read a RFC I authored once. If you want your code reviewed or review other's code, there's a codereview stackexchange, too. If you need to test your code, maybe the Rust playground is for you.

We had previously tried panamax but it broke constantly. Well, recently we tried again and it worked beautifully this time and we used it to create an offline mirror. It was pretty straightforward to set up, has plenty of customization options, and is quick to update. It includes the Rust toolchain itself as well as the entire ecosystem of https://crates.io/. It's amazing, and it feels like we're online almost! The entire mirror is only about 150GB. Not bad!

It looks like panamax is also a program that can be used to mirror a local crates-io registry to ones device. And using .cargo/config one can point to it. https://github.com/panamax-rs/panamax

You can use https://github.com/panamax-rs/panamax to grab the entire crates.io

I’m looking for an equivalent of panamax for rust, for golang. Do you know if a tool like this exists ? The aim is to have a maximum of packages available (ideally all) in an offline environment.

We're no complete strangers to that ;-) (my handle on github is dureuill)

Finally got Panamax's (rust mirror) "serve" command to a point where I've finally made a PR for it!

Work on Panamax (a Rust mirror for rustup and crates.io). It's nearly complete, and as part of building a command to serve a downloaded mirror, I've implemented a warp proof of concept that serves a git repo: https://github.com/panamax-rs/warp-git