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One thing I'm trying to understand is: Is this a garbage collector for Rust; or is this a garbage collector implemented in Rust for another environment. It's c

• steveklabnik 5y ago
  The latter, implemented in Rust (in my understanding). They bring up Rc<T> because using reference counting as their implementation is in theory a possibility, which they then quickly (and rightfully, imho) dismiss.
  • zamalek 5y ago
    Although you probably could use it for something else, Boa[1] is a good demonstration of this (it uses the GC crate, but the same principle probably applies). [1]: https://github.com/boa-dev/boa https://github.com/boa-dev/boa
• nicoburns 5y ago
  It’s currently the latter, but the author believes that this approach could be cleaned up and generalised to also be the former. I believe it would then be a general purpose GC library in Rust that could be used for Rust code or any environment written in Rust.