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.

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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

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

Meta Tech Podcast