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rust-blog
- Common Rust Lifetime Misconceptions
- What learning resource has had the greatest impact in elevating your understanding and knowledge of Rust?
- I do not understand why Sized bound prevents a trait from being used as a trait object.
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Lifetime annotations: why doesn't Rust?
It's already now that the elided lifetimes are not always correct, as pointed out in Common Rust Lifetime Misconceptions (No 5) by pretzelhammer.
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Anything C can do Rust can do Better
Common Rust Lifetime Misconceptions - kirill
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Resources on Lifetimes
I found this blog post really helpful. Even though it's framed as correcting lifetime "misconceptions", it helped me go from just using lifetimes to appease the compiler and avoid cloning to actually thinking about how long my data is being held onto.
Probably a bit more advanced than what you asked about, but still possibly useful: Common Rust Lifetime Misconceptions by /u/pretzelhammer.
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C++ Primer style book for Rust
For fundamental traits, there is a blog post about this.
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Let's share some hidden gems in Rust for newcomers!
Tour of Rust's Standard Library Traits
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Ressources that better explain a certain Rust language feature
I'm looking for ressources that are dedicated to explaining a certain feature of Rust, something like this. or even more specific like explaining a single trait. To add them to the Rust CS curriculum that I have previously shared here. all kinds of ressources are welcome, blog articles, videos...etc. So, if you created or have a link to ressources that you think did a great job explaining topic X post it below!
Cargo
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Scriptisto: "Shebang interpreter" that enables writing scripts in compiled langs
Nice hack! Would it have been possible back then to use cargo to pull in some dependencies?
The clean solution of cargo script is here: https://github.com/rust-lang/cargo/issues/12207
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Making Rust binaries smaller by default
Yes, I am sure this is going to be a part of Rust 1.77.0 and it will release on 21st March. I say that because of the tag in the PR (https://github.com/rust-lang/cargo/pull/13257#event-11505613...).
I'm no expert on Rust compiler development, but my understanding is that all code that is merged into master is available on nightly. If they're not behind a feature flag (this one isn't), they'll be available in a full release within 12 weeks of being merged. Larger features that need a lot more testing remain behind feature flags. Once they are merged into master, they remain on nightly until they're sufficiently tested. The multi-threaded frontend (https://blog.rust-lang.org/2023/11/09/parallel-rustc.html) is an example of such a feature. It'll remain nightly only for several months.
Again, I'm not an expert. This is based on what I've observed of Rust development.
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You can't do that because I hate you
"Beg", and "passive aggressive" from TFA, is an unnecessarily emotional interpretation of that sentence. It's perfectly neutral. When they imported `cargo-vendor` into cargo removed a feature that was not trivial to reimplement, so they asked for an issue to be opened so that they can see if people want it and so that someone can decide to implement it.
That message *could* be updated to point to https://github.com/rust-lang/cargo/issues/10310 instead of asking for new issues to be created or suggesting the old `cargo-vendor`. (The author of TFA already knows about that issue, since they commented on it before they published their article.)
(You might say it would've been better to let cargo-vendor remain instead of importing it into cargo, but the reason that was done was to ensure it would continue to work with changes to cargo. Indeed that is why cargo-vendor does *not* work properly any more.)
The author provides very surface-level criticism of two Rust tools, but they don't look into why those choices were made.
With about five minutes of my time, I found out:
wrap_comments was introduced in 2019 [0]. There are bugs in the implementation (it breaks Markdown tables), so the option hasn't been marked as stable. Progress on the issue has been spotty.
--no-merge-sources is not trivial to re-implement [1]. The author has already explained why the flag no longer works -- Cargo integrated the command, but not all of the flags. This commit [2] explains why this functionality was removed in the first place.
Rust is open source, so the author of this blog post could improve the state of the software they care about by championing these issues. The --no-merge-sources error message even encourages you to open an issue, presumably so that the authors of Cargo can gauge the importance of certain flags/features.
You could even do something much simpler, like adding a comment to the related issues mentioning that you ran into these rough edges and that it made your life a little worse, or with a workaround that you found.
Alternatively, you can continue to write about how much free software sucks.
[0]: https://github.com/rust-lang/rustfmt/issues/3347
[1]: https://github.com/rust-lang/cargo/pull/10344
[2]: https://github.com/rust-lang/cargo/commit/3842d8e6f20067f716...
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Cargo has never frustrated me like npm or pip has. Does Cargo ever get frustrating? Does anyone ever find themselves in dependency hell?
And there are IMHO some rough edges around workspaced crates. E.g. https://github.com/rust-lang/cargo/issues/3946
Be careful about doing this globally on in a way that shares the target dir, you'll end up hitting a cargo bug that causes it to combine unexpected code in some cases, which can cause unsound behavior. https://github.com/rust-lang/cargo/issues/12516
For filesystem caches, see https://github.com/rust-lang/cargo/issues/12633
I wonder, is cargo gc solve the problem https://github.com/rust-lang/cargo/pull/12634 ?
Something else that will help is per user caching which several people are looking into. For dependencies you share between projects, they'll share the folder, saving on disk space.
What are some alternatives?
RustCMake - An example project showing usage of CMake with Rust
Clippy - A bunch of lints to catch common mistakes and improve your Rust code. Book: https://doc.rust-lang.org/clippy/
RustScan - 🤖 The Modern Port Scanner 🤖
opencv-rust - Rust bindings for OpenCV 3 & 4
overflower - A Rust compiler plugin and support library to annotate overflow behavior
crates.io - The Rust package registry
cargo-check
cargo-outdated - A cargo subcommand for displaying when Rust dependencies are out of date
cargo-dot - Generate graphs of a Cargo project's dependencies
rust-analyzer - A Rust compiler front-end for IDEs [Moved to: https://github.com/rust-lang/rust-analyzer]
rust - Empowering everyone to build reliable and efficient software.
zero-to-production - Code for "Zero To Production In Rust", a book on API development using Rust.