What's everyone working on this week (13/2026)?

community
1

New week, new Rust! What are you folks up to?

2

I'm hoping to finalise a few proc-macros(try_v2, exit_safely) that I started on in true "pass the salt (xkcd)" style. Maybe I'll also break out the half-finished implementation of Diagnostic for proc-macro2 that I embedded into them too...

Then I'll take another look at trying to get an async backend and an event-loop front-end to play nicely together in a way that compiles to wasm (a personal project I put on the back burner 9 months ago). I only managed to get 2 out of 3 last time I looked at it ;(

3

I got around to updating Rust Learning to account for various Rust developments...

  • Builtin supertrait upcasting
  • Precise capturing and changes to default RPIT captures
  • _ being available to infer const parameters
  • TypeId::of being a const fn
  • Being able to omit where Self: Sized trait methods in unsized type impls
  • Being able to coerce away the dyn principal trait
  • mismatched_lifetime_syntaxes warn-by-default lint
  • elided_lifetimes_in_associated_constant future compatibility lint

Later this week I'll reread the guide with fresher eyes in an attempt to clean up the various typos and poor wordings I inevitably also introduced.

14 Likes
4

Have been extending/improving pstd, the crate doc now starts:

Crate with parts of Rust std library ( different implementations, features not yet stabilised etc ), in particular Box, Vec, Rc, String and collections::{ BTreeMap, BTreeSet, HashMap, HashSet }.

Box, Rc and String currently only have minimal methods/traits implemented.

HashMap and HashSet are imported from the hashbrown crate.

RcStr is a reference-counted string.

The localalloc module has fast thread-local bump allocators.

5

I have been building a JSON module for Python using only Rust and extremely minimal unsafe. It already passes a JSON test suite and benchmarks as about 2.4x faster than Python's json module, which I'm quite happy with considering how little time I have spent optimizing.

6

I am building a high performance, multi-modal database - NodeDB. Still have a long way to go though.

1 Like
7

I'm trying to review and update bincode-next async-fiber module to make it more robust and secure. Though it is a hard job because the module heavily rely on unsafe and even naked_asm.