Skip to content

jasonwilliams/boa

main
Switch branches/tags
Code
This branch is 146 commits behind boa-dev:main.
Contribute

Latest commit

This Pull Request fixes/closes boa-dev#1972 .

It changes the following:
- remove `format!` macro in `execute_instruction` and replace by `&'static str`
4133801

Git stats

Files

Permalink
Failed to load latest commit information.
Type
Name
Latest commit message
Commit time
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Boa

Boa Logo

This is an experimental Javascript lexer, parser and interpreter written in Rust. Currently, it has support for some of the language.

Build Status codecov Crates.io Docs.rs Discord

Live Demo (WASM)

https://boa-dev.github.io/boa/playground/

You can get more verbose errors when running from the command line.

Development documentation

You can check the internal development docs at https://boa-dev.github.io/boa/doc.

Conformance

To know how much of the ECMAScript specification does Boa cover, you can check out results running the ECMASCript Test262 test suite here.

Contributing

Please, check the CONTRIBUTING.md file to know how to contribute in the project. You will need Rust installed and an editor. We have some configurations ready for VSCode.

Debugging

Check debugging.md for more info on debugging.

Web Assembly

This interpreter can be exposed to JavaScript! You can build the example locally with:

npm run build

In the console you can use window.evaluate to pass JavaScript in. To develop on the web assembly side you can run:

npm run serve

then go to http://localhost:8080.

Usage

  • Clone this repo.
  • Run with cargo run -- test.js where test.js is an existing JS file with any JS valid code.
  • If any JS doesn't work then it's a bug. Please raise an issue!

Example

Example

Command-line Options

USAGE:
    boa [OPTIONS] [FILE]...

FLAGS:
    -h, --help       Prints help information
    -V, --version    Prints version information

OPTIONS:
    -a, --dump-ast <FORMAT>       Dump the abstract syntax tree (ast) to stdout with the given format [possible values: Debug, Json,
                                  JsonPretty]

ARGS:
    <FILE>...    The JavaScript file(s) to be evaluated

Roadmap

See Milestones.

Benchmarks

See Benchmarks.

Profiling

See Profiling.

Changelog

See CHANGELOG.md.

Communication

Feel free to contact us on Discord.

License

This project is licensed under the Unlicense or MIT licenses, at your option.

About

Boa is an embeddable and experimental Javascript engine written in Rust. Currently, it has support for some of the language.

Resources

License

MIT, Unlicense licenses found

Licenses found

MIT
LICENSE-MIT
Unlicense
LICENSE-UNLICENSE

Code of conduct

Stars

Watchers

Forks

Packages

No packages published

Languages

  • Rust 99.6%
  • Other 0.4%