rust-blog
polonius
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rust-blog | polonius | |
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63 | 31 | |
6,608 | 1,249 | |
- | 2.7% | |
5.0 | 0.0 | |
about 2 months ago | 6 months ago | |
Rust | Rust | |
Apache License 2.0 | Apache License 2.0 |
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rust-blog
- Common Rust Lifetime Misconceptions
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What are some good resources for experienced programmers new to Rust to learn about lifetimes?
Hands down the best resource (after you've had sufficient experience with Rust, especially so) - https://github.com/pretzelhammer/rust-blog/blob/master/posts/common-rust-lifetime-misconceptions.md
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How can a parameter type `T` be not long living enough?
I really really recommend reading this to understand lifetimes and generics in Rust better.
- 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
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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Borrow checker puzzles
This helped me a lot understanding Rust ownership rules and lifetimes: https://github.com/pretzelhammer/rust-blog/blob/master/posts/common-rust-lifetime-misconceptions.md
polonius
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Why do lifetimes need to be leaky?
Correctness prover which uses lifetimes (Polonius).
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Databases are the endgame for data-oriented design
And, well, polonius (Rust borrow checker magic) I believe is built on datalog-ish concepts: https://github.com/rust-lang/polonius
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Why doesn't rust-analyzer reuse infrastructures of rustc?
There is also polonius (https://github.com/rust-lang/polonius) which should replace the borrow checker but does not receive a lot of development resources.
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Rust front-end merged in GCC trunk
This is eventually going to be a feature-complete compiler, targeting a specific rustc version. I believe the plan is to use polonius [1], presumably as an "optional" feature so they can build a stage 1 without it, use that to build polonius, then build the final compiler with it included.
[1] https://github.com/rust-lang/polonius
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Blog post: Rust in 2023
E.g. there you may just stop using current borrow-checker and switch to Polonius.
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What are Rust’s biggest weaknesses?
The borrow checker is too dumb (https://github.com/rust-lang/polonius) fixes a lot of this.
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Datafrog: A lightweight Datalog engine in Rust
It looks like an official borrow checker implementation called Polonius uses it as a dependency, so it makes sense: https://github.com/rust-lang/polonius/blob/981785c101b68ff54...
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Differential Datalog: a programming language for incremental computation
If you click around a little, you end up on a blog post with this tidbit:
> This project got put together rather suddenly, in response to some work the Rust folks are doing[1] on their new and improved borrow checker.
I don't think I could tell you more than "Frank wrote it to help rust folks who were previously doing work with differential-dataflow directly."
1. https://github.com/rust-lang/polonius/pull/36#issuecomment-3...
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Generic associated types to be stable in Rust 1.65
Good news is that there's also works going on to relax the restrictions, like polonius. But it seems that it still have a long way to go before it can land in stable Rust...
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Rust for Linux officially merged
GCC-rs isn't intended for bootstrapping, it is intended to be an actual fully featured Rust compiler in the future, mrustc is a Rust compiler intended for bootstrapping though. GCC-rs is still very early targeting an older version of the reference compiler without things like a borrow checker, but that's not going to be the case forever. The GCC-rs folks have expressed interest in re-using the borrow checker library used by the reference compiler called polonius enabling them to relatively easily add borrow checking.
What are some alternatives?
zero-to-production - Code for "Zero To Production In Rust", a book on API development using Rust.
chalk - An implementation and definition of the Rust trait system using a PROLOG-like logic solver
fluvio - Lean and mean distributed stream processing system written in rust and web assembly.
rfcs - RFCs for changes to Rust
static-analysis - ⚙️ A curated list of static analysis (SAST) tools and linters for all programming languages, config files, build tools, and more. The focus is on tools which improve code quality.
gccrs - GCC Front-End for Rust
Rustlings - :crab: Small exercises to get you used to reading and writing Rust code!
rustc_codegen_gcc - libgccjit AOT codegen for rustc
mini-redis - Incomplete Redis client and server implementation using Tokio - for learning purposes only
miri - An interpreter for Rust's mid-level intermediate representation
ggegui - A simple implementation of egui for ggez
srgb.rs - Implementation of sRGB primitives and constants