corrode/refactoring-rust

Refactoring Rust is a set of hands-on exercises for people who already know the basics of Rust and want to write code that feels more natural to the language. The author points out that there are already two well-known beginner resources, Rustlings and 100 Exercises To Learn Rust, but they felt there was a gap at the next level up: a course that teaches idioms and patterns by walking through realistic refactoring tasks rather than starter puzzles. The format is simple. Each exercise hands you a small piece of working code that is functional but awkward, and asks you to rework it into something more idiomatic. The author is upfront that there is no single correct answer for these problems. The exercises are meant as discussion starters, giving a group or a self-learner a concrete piece of code to talk about, rather than acting as an authoritative reference. Running an exercise uses standard Cargo commands. You can execute a given example with cargo run pointing at the example name, and you can run the example's tests with cargo test in the same way. The README shows the first exercise, 01_starts_with_uppercase, as a sample. The collection is laid out in rough order of difficulty. It starts with quick warm-ups that take only a few minutes and works up to larger structural refactors that touch how code is organized. Each example is self-contained, so the README invites readers to skip around rather than march through them in order. The project frames itself as a workshop, fitting with the author's broader work on Rust education at corrode.