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> My problem with Rust is that is precludes many safe programs. References can be alive and be passed around. I do agree with this and it rubs me the wrong way
by therein 4y ago
> My problem with Rust is that is precludes many safe programs. References can be alive and be passed around.
I do agree with this and it rubs me the wrong way. Sure I can put something into `std::mem::ManuallyDrop` and hand out transmuted unsafe `&'static mut` references to it but then people come and point out (rightfully) how this library is unsound.
- wizzwizz4 4y agoUse something with interior mutability, like the Cell family; then you can hand out & references. Safe Rust precludes some safe programs, but Rust's soundness rules preclude far fewer. I've only seen a couple of real-world programs that you couldn't express in Rust (without unnecessary runtime checks), and that's solely due to the hierarchical lifetimes.