Ruby to Rust

on YouTube ↗33m

" summary

Deliveroo replaces the Ruby dispatch core piece‑by‑piece with Rust using ruru/rutie extensions and a serde-driven serialization bridge so Ruby objects map to Rust structs automatically. Migration happens in ten feature‑flagged stages, keeping Ruby and Rust running side‑by‑side; calls cross the FFI in under a millisecond. The rewrite yields a 17x speed‑up over the previous hybrid implementation, supports safe parallelism via rayon with a small change, and includes panic trapping, rich error context, and automatic fallback to Ruby.

AI-written summary · about

" chapters (18)

1. 0:00Introduction
2. 1:03About Deliveroo
3. 1:57Dispatch
4. 4:04Ruby
5. 5:14Rust
6. 8:07No Ship One
7. 8:29Incremental
8. 11:30Ruby Class
9. 12:49Rust Macros
10. 13:37A String
11. 14:37Name Binding
12. 15:38String Reference
13. 16:18Order
14. 17:19Class
15. 19:30ThirdA
16. 21:51Rooty
17. 23:11Error Handling
18. 28:56Questions

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