My big problem with Rust is too much "unsafe" code. Every time I've had to debug a hard problem, it's been in unsafe code in someone else's crate. Or in something that was C underneath. I'm about 50,000 lines of Rust into a metaverse client, and my own code has zero "unsafe". I'm not even calling "mem", or transmuting anything. Yet this has both networking and graphics, and goes fast. I just do not see why people seem to use "unsafe" so much.
Rust does need a better way to do backlinks. You can do it with Rc, RefCell, and Weak, but it involves run-time borrow checks that should never fail. Those should be checked at compile time. Detecting a double borrow is the same problem as detecting a double lock of a mutex by one thread, which is being worked on.
Rust does need a better way to do backlinks. You can do it with Rc, RefCell, and Weak, but it involves run-time borrow checks that should never fail. Those should be checked at compile time. Detecting a double borrow is the same problem as detecting a double lock of a mutex by one thread, which is being worked on.