Type erasure for async trait methods

serde::Deserializer for proc_macro/proc_macro2::TokenStream

Utilities for working with impl traits in Rust.

Procedural macro for bitfields.

A Rust crate that implements "design by contract" via procedural macros

Analysis of various tricky Rust code

Weak hash tables for Rust

Lattice // Salt // Facet

Single-pass SSA compiler and bytecode VM for a sandboxed Python subset. NaN-boxed values, dual inline caching (scalar + instance-dunder), super-instruction fusion, pure-function memoization, mark-sweep GC; classes with inheritance and dunder protocol, stackful coroutines with async/await, pattern matching, and packages.json imports. <200 KB WASM.

Input manager for Bevy.