Transitioning from C++ to Rust: A Journey in Software Development

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