In Rust terms, the arena should own the data and each object should just borrow from the arena. In Rust, when you drop a borrow it doesn't deallocate the memory

In Rust terms, the arena should own the data and each object should just borrow from the arena. In Rust, when you drop a borrow it doesn't deallocate the memory; only owned values deallocate on drop (that is, in the destructor). Besides, borrowing enforces that the arena won't drop while the borrows are still outstanding. https://manishearth.github.io/blog/2021/03/15/arenas-in-rust/ https://manishearth.github.io/blog/2021/03/15/arenas-in-rust...