Hey Rustaceans! Got a question? Ask here (5/2023)!

1. rust

   1 2,842 104,203 10.0 Rust

   Empowering everyone to build reliable and efficient software.

   

   Ah thanks, yup the last comment in https://github.com/rust-lang/rust/issues/20671 is a much more concise version of my issue :)

2. InfluxDB

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   InfluxDB – Built for High-Performance Time Series Workloads. InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.

   

3. cross

   2 120 7,400 7.9 Rust

   “Zero setup” cross compilation and “cross testing” of Rust crates

   

   I build on x86, for aarm64/armv7 musl targets, using cross-rs. My issue is, forever and always, tls. Previously I just used openssl = { version = '0.10', features = ["vendored"] } in Cargo.toml.

4. tokio-tungstenite

   3 15 2,129 5.0 Rust

   Future-based Tungstenite for Tokio. Lightweight stream-based WebSocket implementation

   

   I'm using another crate that requires tls, specifically tokio-tungstenite, I'll try your suggestions later today once I get home

5. wabt

   4 24 7,371 8.5 C++

   The WebAssembly Binary Toolkit

   

   I'm trying to get a basic Rust webassembly program, then porting it to C via wasm2c. The example works, but when I use wasm-bindgen and analyze it with wasm2wat, I get an import "env". The issue is that in C (wasm2c) it comes out as struct Z_env_instance_t; and I can't instantiate it (as in Z_env_instance_t env; to pass it's address to Z_wasm_client_bg_instantiate.

6. moonlander-firmware

   5 1 - -

   The code I wrote works correctly https://gitlab.com/Boiethios/moonlander-firmware/-/blob/dev/src/bootload.rs but I wondered how bad it is, that is, how it violates the Rust memory model. You've already answered that part, though, thanks for the answer :)

7. rustfmt

   6 59 6,315 9.1 Rust

   Format Rust code

   

   Yes, some cases are not yet supported (https://github.com/rust-lang/rustfmt/issues/4914).

8. Kategory

   7 33 6,373 8.9 Kotlin

   The perfect companion for your Kotlin journey - Inspired by functional, data-oriented and concurrent programming (by arrow-kt)

   

   Are there any more-or-less established functional crates in Rust (similar to Kotlin’s Arrow)?

9. SaaSHub

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10. slotmap

    8 14 1,202 3.4 Rust

    Slotmap data structure for Rust

    

    Dunno about existing implementations, but it looks like it's a feature they'd accept: https://github.com/orlp/slotmap/issues/73

11. cxx

    9 101 6,319 9.6 Rust

    Safe interop between Rust and C++

    

    There's a crate with a handy guide for doing just that: https://cxx.rs/

12. serde-aux

    10 1 168 4.3 Rust

    An auxiliary serde library providing helpful functions for serialisation and deserialisation for containers, struct fields and others.

    

    If you want to additionally parse strings into numbers, take a look at https://github.com/vityafx/serde-aux (or write a custom deserializer, ofc.).

13. kanin

    11 2 7 4.3 Rust

    A microservice framework for AMQP, protobuf and Rust.

    

    We've built kanin for our use at Issuu. It's working very well for our servers! We are maintaining it, though it fulfills most of our own requirements at the moment. Feel free to post issues/PRs. Kanin only takes care of the server side though.

14. auto-future

    12 1 0 10.0 Rust

    A way to easily build structs that can be turned into futures

    

    I ended up writing what I called an `AutoFuture`. It takes a `dyn Future`, boxes it, and then polls it to completion. The code is here. It works well for my needs.

15. text_adventure

    13 1 0 10.0 Rust

    Prototype for a text based adventure system.

    

    some time later.. something like this, and I've added a repo in case I mess around with this in the future.

16. ref-cast

    14 3 204 6.2 Rust

    Safely cast &T to &U where the struct U contains a single field of type T.

    

    You can add #[repr(transparent)] and then call transmute(), or use https://github.com/dtolnay/ref-cast (which is exactly what it does anyway, providing a safe interface).

17. rust-bindgen

    15 55 4,816 9.3 Rust

    Automatically generates Rust FFI bindings to C (and some C++) libraries.

    

    It's quite the different approach, but you could consider using bindgen instead.

18. jlox-rs

    16 2 19 10.0 Rust

    Following along the first (Java) part of https://craftinginterpreters.com/, but with Rust, because reasons.

    

    I decided to peak at some other implementation of this project and I saw this https://github.com/abesto/jlox-rs/blob/main/src/ast.rs.

19. SaaSHub

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