This is an experimental Javascript lexer, parser and Just-in-Time compiler written in Rust. Currently, it has support for some of the language.
This project is an attempted rewrite of Bebbington's js.rs. Most of the Rust code has been rewritten from scratch.
If you don't already have Rust installed rustup is the recommended tool to use. It will install Rust and allow you to switch between nightly, stable and beta. You can also install additional components.
curl https://sh.rustup.rs -sSf | sh
Then simply clone this project and cargo build
To develop on the web assembly side you can run yarn serve
then go to https://localhost:8080
This interpreter can be exposed to javascript! You can build the example locally with:
$ yarn install
$ yarn serve
In the console you can use window.evaluate
to pass JavaScript in
string.length- works in 0.1.5- Adding support for constructors - half working, in progress
better environment and scope support- Finished (05/05/2019)let
andconst
support- Better error output
- Passing test262
- Checkout this project
- Build
cargo build
cargo run
- You can make changes to tests/js/test.js and build again
- If any JS doesn't work its a bug! Please raise an issue