Experimental: Rewriting Svelte compiler in Rust with AI assistance (WIP)

[MrWaip]

Hello!

Over the past two months, I’ve been running an experiment on what can be done using AI like Claude Code. For the experiment, I decided to revive one of my projects from last year — a Rust implementation of the Svelte compiler. Last time, I abandoned it because I came to the conclusion that I just wouldn't be able to keep up with the Svelte team and would always fall behind.

Now, with the help of AI, I was able to write a compiler for Svelte's client-side code from scratch. I’ve supported most of Svelte’s syntax. And this has been incredibly inspiring to me.

Objectively, there’s still a lot of work to do: SSR, finishing source maps, optimizations, bugs — but this now feels feasible to me.
Ultimately, I hope to achieve full parity with the original and use this version in my enterprise project.

Here are the links:

• Playground - https://mrwaip.github.io/svelte-rs-2/
• Repo - https://github.com/MrWaip/svelte-rs-2
• Benchmark - https://github.com/MrWaip/svelte-rs-2#benchmarks