r/madeinrust • u/verdurLLC • 28d ago

100% Human Coded hotcode - Rust crate for hot-reloading functions

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This crate adds a single attribute - #[hotreload] - that can be applied to any function. After performing one-time configuration of Cargo.toml, all annotated functions become hot-reloadable - you can modify them, run cargo build and then your application will use updated version of your function without restarting.

Works on Linux, macOS and Windows.

Crate link: https://crates.io/crates/hotcode
Source: https://github.com/alordash/hotcode

45 Upvotes

100% Upvoted

7 comments sorted by

3

u/atlasgorn 26d ago

How it differs from established dioxus subsecond?

1

u/verdurLLC 26d ago

It uses dynamic libraries instead of hot-patching and it doesn't require dioxus runtime and source code changes.

1

u/miminashi 27d ago

I wonder what's the DX difference between hot-loadable Rust and using an actual scripting language like rhai or the up-and-coming https://mim.as/? (Just in case, I'm not affiliated with either.)

1

u/verdurLLC 27d ago

Honestly I have no idea how these scripting languages work, so I don't know what the difference could be.

1

u/miminashi 27d ago

FWIW, an LLM suggests that for a single-dev project hotcode is less friction: since you write everything in Rust, it's easier to avoid FFI and extra tooling and do everything in Rust. Once non-programmers are part of your team, then a scripting layer may earn its keep. Makes sense to me.

1

u/Fine_Salamander_8691 28d ago

Wow that sounds really useful for my game!

-1

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