HoneyBadger

WIP ES2015+ to ES5 transpiler + bundler + minifier in Rust.

Because Webpack+Babel+UglifyJS are both awesome and terrible at the same time.

Requirements

• Rust 1.8.0

Usage

To print out the compiled code to stdout: $ cargo run -- -f input.js

To compile to a file: $ cargo run -- -f input.js -o output.js

Things that work:

• A basic pipeline for parsing, transofrmation and code generation.
• Can parse and code gen a large chunk of ES2015+ syntax (not all yet, but getting there).
• The transformer can turn arrow functions into regular function expressions, adding .bind(this) when necessary.
• Object shorthand as well as computed properties get transmuted to ES5.

Things that are missing:

• Keep track of location of tokens and later on AST constructs in the original source code.
• Meaningful parse error reporting.
• Any sort of bundling.
• A way to configure which transformations to do, and which to skip.
• Interface with external compilers (Sass, Less, Handlebars), maybe use Neon?
• Think of ways to analize function scopes (necessary for variable name scramling).