starlight VS smalltalk

I have great news

Hello to all! This crate implements Shadow Stack algorithm which allows to track GC objects on stack with almost zero overhead! This algorithm is used inside Restricted Python and seems to work very well. This crate soon will replace DIY shadow stack implementation in starlight(JS engine in Rust) too.

Working on startup snapshots in starlight. I already have very basic implementation which allows to initialize runtime in just 17 microseconds from snapshot vs 23 microseconds without snapshot when every builtin is created from scratch. Future work is aimed mostly on making deserialization faster

Hi to all! I'm working on starlight (JS engine in Rust) and I can't choose memory management technique: Right now I have conservative on stack precise on heap GC which somehow manages to work but still has segfaults and I'm also working on rcgc feature which will use RC as GC algorithm but my main question: is it worth using RC over tracing cycle and how hard it will be to implement JIT when RC is used? I've never seen any runtimes that use RC and implement JIT.

There's test262_passed file in repo, you can take a look at what tests pass :)

Working on GST my personnal fork of GNU Smalltalk. I've fixed a small issue regarding the object table in 64 bits you can expect to create much more objects without reaching an out of memory. Also I've improved the VM code specialy the way the objects were GCed and initialized so it brings much more flexibility to change the object layout (adding a new field at the VM level for instance) and added a static assert that will warm the developper ;-)