> Most particularly, my experience with arenas and defer drop is -- they aren't always perfectly easy in Rust. That is my experience also: https://blog.reverbe

> Most particularly, my experience with arenas and defer drop is -- they aren't always perfectly easy in Rust. That is my experience also: https://blog.reverberate.org/2021/12/19/arenas-and-rust.html https://blog.reverberate.org/2021/12/19/arenas-and-rust.html I was hoping the borrow checker would perfectly check arena lifetimes. And it does, but it requires that your types have lifetime parameters. That makes logical sense, but my experience attempting to actually use a type with a lifetime parameter is that it is so painful as to not be practical in a low-level library.