Rookie Question: &T vs Box
As someone who is not professionally a programmer or officially educated as such, I am about two to three months into learning Rust, and most concepts I have been able to slowly reason my way through....
View ArticleHolyRust: a Rust-flavored JIT dialect where ownership errors print a...
Hi all, I want to share a language experiment, and the one question it keeps raising: what if ownership were a runtime diagnostic instead of a compile-time gate? The context in one sentence: HolyRust...
View ArticlePass small structs by value or reference?
I have a struct: struct DocPos { block: Uuid, offset: usize, flags: u32 } And lots of functions around it, for example: fn doc_pos_to_utf16_index(pos: DocPos) -> Utf16Index fn...
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Multi_bimap - many-to-many bimap freely made of two arbitrary maps
The popular Rust crate for bidirectional maps, bimap, is limited to one-to-one relations (bijections) only (and appears unmaintained). But sometimes you need to have one-to-many and many-to-many...
View ArticleRust Bootcamp Project RouteForge Review
Hi everyone, I’m looking for some feedback on my capstone project for a Rust bootcamp. The project is RouteForge, a backend system that turns a day's parcel orders into optimized courier routes and...
View ArticleAnnouncing virtual-file-transfer 0.1.0: Windows virtual-file drag-and-drop...
Hi everyone, I recently released virtual-file-transfer v0.1.0, a Rust crate for transferring virtual files through Windows drag-and-drop and the clipboard. It allows applications to expose data from...
View ArticleBuffer initialization does not get optimized out
I have the following snippet (minimization of a similar problem encountered in real code): const N: usize = 32; fn read(block: &[u8; 8 * N]) -> [u64; N] { let (chunks, tail) =...
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VS Code, test panic, can't click and go to stack trace locations
I thought this used to work. I run a unit test in VS Code, and it panics. In the terminal I see stuff like: 1: core::panicking::panic_fmt at /rustc/[...]\core\src\panicking.rs:80 2:...
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Koof: Kubernetes OpenAPI Operator Framework
Hi everyone! For my bootcamp project I built koof, a framework that generates Kubernetes operators from OpenAPI specs. You describe resources with a few x-kube-* extensions in OpenAPI Overlays, and it...
View ArticleSmartHomeLab for Home Assistant
Hi everyone! I’m on the home stretch of a Rust bootcamp, and my capstone project is Smart Home Lab. I’d love a review from people who write Rust daily. Virtual smart-home devices with a web UI,...
View ArticleWhy Does an Out-of-Bounds Array Index Fail at Compile Time in One Case but at...
I'm learning Rust and trying to understand the difference between compile-time errors and runtime panics when accessing array elements. Consider the following code: fn main() { let a: [u32; 5] = [1,...
View ArticleExchange: a deterministic order book and matching engine in Rust
Hi! I'd like feedback on exchange, a limit order book and matching engine in Rust: orders go in, trades and an event stream come out. Repo: GitHub - Wandalen/exchange · GitHub The problem A matching...
View ArticleRing: a lock-free "many writers, one ordered reader" queue in Rust
Hi! I'd like feedback on ring, a family of Rust crates for a lock-free write path: many threads send work, and one thread processes it in a strict, reproducible order. Repo: GitHub - Wandalen/ring:...
View ArticleExact — finance math that can't lose a cent
Hi! I'd like feedback on exact, a small set of Rust crates for financial math. Repo: GitHub - Wandalen/exact · GitHub The problem 0.1 + 0.2 isn't 0.3 with floats, and in a market those errors add up....
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Qt+WGPU integration
I occasionally need/want to write a small 3D program with a bit of UI (e.g. qt-tracing, hyperboloid). So this is what I came up with: NotEuclid’s Gitea qt-wgpu-skel Qt + WGPU skeleton Basically, it...
View ArticleClippy wants a Safety section for functions marked with target_feature
When I run clippy on this: #[target_feature(enable = "avx")] pub fn f() {} I get a warning: warning: unsafe function's docs are missing a `# Safety` section --> src/lib.rs:2:1 | 2 | pub fn f() {} |...
View ArticleLoole 0.6.0: Improved correctness, performance and Flume compatibility
Hi everyone! I've recently released a new version of Loole, a Rust channel crate that supports multiple producers and multiple consumers, with both synchronous and asynchronous send/receive...
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Music Recommendation System written on Rust
I made this as my bootcamp project, and I would really appreciate it if anyone took a look at it and left a review, by leaving some comments in the PR in the link below or under this post regarding...
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Use cases for Try
As we move towards stabilising trait Try I'm trying to collate real-world, actually-implemented, examples. Anyone who knows of such cases, or has a concrete use case they would like to see, please...
View ArticleHow to test a wasm app fully?
This might not fully be rust specific, but using cargo to test is so convenient that I kinda want to use it... So, I have this desktop app which is well tested, which I'm converting to a wasm app....
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