The level of fanboyism in the comments is saddening. Many other fast and productive languages have async since a while.
I need a language with minimal runtime, good support for the C ABI and structure formats, decent macros, good ecosystem and community for mainstream programming needs, and support for async.
Where else can I find that whole package?
Go has too much of a runtime, GC, and doesn't support C structure formats very well (i.e. best case you need to copy/translate them to Go; you can't operate on them directly).
C++ can do it, but the details are ugly and the result unsatisfying.
Ada lacks macros and a mainstream ecosystem.
So... what do I use if not rust?
I can't imagine doing that project it any other language.
a bit too excited. GP isn't wrong, Go pretty much has the same thing and I have never seen so much fanboyism for a single feature ever in my career.
I don't get it, but that might be because I am a manager.
See my example where a pure-rust postgres extension can start a background worker, listen on a port, and handle concurrent network requests, multiplexing them over a single backend calling a non-thread-safe internal postgres API.
That's possible because rust has no runtime to get in the way, it can use C structs natively and seamlessly, tokio offers the CurrentThread runtime (which doesn't spawn new threads), and a bunch of other details that need to be done right.
Try doing that in a pure-Go postgres extension.