This content dives into the implementation of a garbage collector for the Lox language VM, focusing on mark-and-sweep algorithms and differences between Rust and Lox semantics. The author shares experiences and challenges faced while trying to reconcile these differences, offering two approaches for implementing a GC without using unsafe. The first method explores traditional reference counting in Rust, while the second proposes an object manager pattern for handling memory management. The content introduces readers to complex concepts in a conversational tone, highlighting the nuances and difficulties in aligning Rust’s borrow-checker rules with Lox’s high-level language design.
https://www.tunglevo.com/note/crafting-interpreters-with-rust-on-garbage-collection/