Question for you on Rust for part 2. Did you skip the data structure implementations part, did you use unsafe, or did you do shenanigans like Ids instead of pointers with backing vecs to handle them?
I also used Rust, though I only went up to chapter 21 in Part 2. I completely skipped the basic data structure implementations. I had no interest in implementing basic stuff like vectors and hashmaps, because it's not relevant to the problem.
I did go the ID route instead of pointers, because I didn't like the idea of shotgunning the heap with my AST, so I put the actual statements/expressions in vectors and everything else uses indices inside opaque ID types.
For fun, I did also start on doing compiler for part 2 based on the AST from part 1, though as I say, I didn't get far. I got distracted with a static, stack-based, natively compiled language instead.
