boa VS starlight

boa

Yeah, pretty much. I'm not sure if we're gonna need to implement Static Shapes first but at least we need to make it possible to separate codeblocks from contexts for this to be feasible.

Hi, I'm looking for full time work and I'm interested in roles related to compilers, developer tools and systems. I'm a college senior(graduating on May, 2023) and have been working as an [IOS Developer](https://www.cyengagement.org/) for the past two years. At University, I took a compilers class where I learnt to use LLVM and MLIR to compile programs to various architectures. In Oct. 2022, I was selected to attend the [Programming Language Implementation Summer School](https://pliss.org/2022/) where I got to learn about compiler implementation and language tools from leading researchers around the world. Recently, I have been contributing to [Boa](https://github.com/boa-dev/boa), an embeddable Javascript engine written in Rust, by fixing issues and implementing features to improve conformance with ECMAScript specification. Aside from working on compilers, I have volunteered at conferences like ICFP'21 and PLDI'22 to familiarize myself with latest research in the field of compilers. You can find more information about me and my work in my [blog](https://veera.app) and Github [profile](https://github.com/veera-sivarajan). Thank you for your time and consideration.

I have great news

I already use it in my project to run some parts of the youtube js player. I must say it was broken on one version of the player because of a generated regex inside (more on the issue), but definitely recommending.

I would be curious how much effort it would be to swap boa for V8 to have an all Rust runtime :) If it's not meant to be a production-ready project anyways.

We'd love to see these benchmarks too! We have an open issue to set-up these benchmarks: https://github.com/boa-dev/boa/issues/1924

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

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 :)