63: The key to a happy Rust/C++ relationship

Aida was part of one of the first Rust teams here at Meta. One of the biggest challenges was interacting with the large amount of existing C++. With the release of cxx, safe interop between C++ and even async Rust has become a lot easier. Got feedback? Send it to us on Threads (https://threads.net/@metatechpod), Twitter (https://twitter.com/metatechpod), Instagram (https://instagram.com/metatechpod) and don’t forget to follow our host @passy (https://twitter.com/passy, https://mastodon.social/@passy, and https://threads.net/@passy_). Fancy working with us? Check out https://www.metacareers.com/. Links Aida’s talk at Rust Nation: https://youtu.be/tsEuA9S5q9Q cxx: https://crates.io/crates/cxx Sapling: https://sapling-scm.com/   Timestamps Intro 0:06 Aida Intro 2:06 Rust in Meta Source Control 2:50 State of Rust at Meta 10:11 bindgen 13:25 cxx vs bindgen 17:49 async Rust and C++ 19:04 Dealing with Lifetimes 28:19 Fixing Memory Leaks 31:25 Thread safety with Send and Sync 33:48 A Magic Wand for Async Rust 39:52 Outro 43:04 Outtakes 43:50