Ladybird adopts Rust, with help from AI (ladybird.org)

Article summary

The Ladybird browser project is adopting Rust as a replacement for C++ due to its memory safety guarantees and mature ecosystem. The project used AI-assisted tools to port parts of the codebase, specifically the JavaScript engine, to Rust in about two weeks. The ported code is not yet idiomatic Rust, but it produces identical output to the C++ version. The project plans to continue developing the engine in C++ while gradually porting subsystems to Rust.

Main themes

• Rust adoption
• C++ replacement
• AI-assisted coding
• Memory safety
• Language migration
• Browser development

What commenters say

• The use of AI-assisted tools can significantly speed up the process of porting code to a new language, but may not produce idiomatic code.
• Rust's memory safety guarantees make it a more attractive choice than C++ for systems programming, despite potential difficulties with C++ interop.
• Rewriting a codebase in a new language can be a risky and time-consuming process, but may be necessary for long-term maintainability and security.
• The use of AI in coding is becoming increasingly common, and may change the way developers work, but its impact on the nature of programming is still debated.
• Some commenters argue that Rust's C++ interop is not a significant issue, while others point out that it can be a challenge, especially when working with complex C++ codebases.
• The decision to adopt Rust is seen as a positive step towards improving the security and maintainability of the Ladybird browser, but some commenters express concerns about the potential risks and challenges of a large-scale language migration.