Comment by duped
2 hours ago
Not even an analog: https://doc.rust-lang.org/beta/unstable-book/compiler-flags/...
It's worth pointing out though that just tracing function calls isn't good enough for the kinds of stackless coroutines that run in async Rust tasks. You need a way of mapping between the async tasks and the compiler emitted traces.
afaik, C/C++ have the same problem.
The difference is nobody in the C++ community believes that a dominant asynchronous executor library exists, and there is not a pervasive belief that it would be helpful.