hecs

> stop using references/lifetimes and start using indexes Aren't arenas a nicer suggestion? https://docs.rs/bumpalo/latest/bumpalo/ https://docs.rs/typed-arena/latest/typed_arena/ Depending on the use case, another pattern that plays very nicely with Rust is the EC part of ECS: https://github.com/Ralith/hecs

I'm not replying to detract from your point, because I agree with you whole heartedly that competing ecosystems are not mature enough to dethrown C++ if you're someone who is pragmatic and wants to get things done. C++ has an enormous number of high quality libraries with often no equivalents in competing languages. There are some compelling ECS frameworks emerging in Rust if anyone is interested, though. Legion -- https://github.com/amethyst/legion Hecs -- https://github.com/Ralith/hecs Shipyard -- https://github.com/leudz/shipyard Specs -- https://github.com/amethyst/specs Bevy -- https://github.com/bevyengine/bevy -- not strictly comparable as it's an entire game engine, but it's built around an (imo) more ergonomic fork of hecs. Some benchmarks -- https://github.com/rust-gamedev/ecs_bench_suite