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CONTRIBUTING.md

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Contributing

Code of Conduct

We abide by the Rust Code of Conduct and ask that you do as well.

Overview

  • src/lib.rs: Main entry point for the Rust crate.

  • index.html: Root HTML page that loads the JS and Wasm.

  • index.js: Root JS module, imports the wasm-bindgen-generated JS interface to the Rust's Wasm, and transitively loads the Wasm itself.

  • tests/: Rust tests for native code.

  • benches/: Rust benchmarks for native code.

  • webpack.config.js: Webpack configuration.

  • ci/: Continuous integration scripts.

Building

Native

To build the crate for the native target, run

cargo build

or

cargo build --release

Just the WebAssembly

To build just the .wasm binary, run

cargo build --target wasm32-unknown-unknown

or

cargo build --target wasm32-unknown-unknown --release

WebAssembly and JavaScript Bundle

First, ensure that you've installed Webpack locally by running this command within the repository:

npm install

Then, to build the optimized WebAssembly, the wasm-bindgen JS interface to it, and the JavaScript bundle using the JS interface, run:

npm run build

Cargo Features

  • wee_alloc: Enable using wee_alloc as the global allocator. This trades allocation speed for smaller code size.

  • console_error_panic_hook: Enable better debugging of panics by printing error messages in browser devtools with console.error.

Serving Locally with Webpack

Ensure that you have installed Webpack and its development server by running this command within the repository:

npm install

After that, you can start a local server on http://localhost:8080 by running this command:

npm run serve

Testing

There are integration tests in the tests/ directory, and unit tests in #[cfg(test)] modules within the crate itself.

To run all the tests, run

cargo test

Benchmarking

Benchmarks live within the benches/ directory.

To run all benchmarks, run

cargo bench

Code Formatting

Ensure that you have the rustfmt-preview component installed in rustup:

rustup component add rustfmt-preview

To format all of the code in the crate, run

cargo fmt