Rust Buddy-AI-powered Rust coding assistant

Example

A user submits Rust code that includes inefficient loops or unsafe memory handling.

Scenario

Rust Buddy analyzes the code, identifying areas where performance can be improved by suggesting iterator-based patterns or refactoring code to utilize Rust's memory safety features (such as avoiding unnecessary cloning or using `Cow` for efficient borrowing). Rust Buddy also ensures the user follows idiomatic Rust patterns, advising on using traits effectively, or breaking down monolithic functions into smaller, reusable components.

Example

A user encounters a 'borrow checker' error when trying to return a reference from a function.

Scenario

Rust Buddy provides a detailed breakdown of the borrow checker error, explaining Rust's rules on borrowing and lifetimes. The tool would suggest changes to function signatures to correctly handle lifetimes or suggest the use of smart pointers, like `Rc<T>` or `Box<T>`, depending on the context. It helps users understand why the error occurs and how to refactor code to satisfy the borrow checker.

Example

A user asks for an explanation of Rust's `async/await` syntax and how to avoid common pitfalls like deadlocks.

Scenario

Rust Buddy offers a deep dive into asynchronous programming in Rust, explaining how `async` transforms functions and how `await` operates. It provides examples of proper task management using `tokio` or `async-std`, and advises on when to use tools like `Pin` or `FuturesUnordered`. It also highlights potential issues like blocking async tasks and provides guidance on avoiding common mistakes in asynchronous Rust applications.