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chez-scheme-js

v1.1.0

Published

2 years ago

Chez Scheme on the web w/ WASM and Workers

Downloads

10

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chez-scheme-js

Chez Scheme on the web

Browser

chez-scheme-js uses SharedArrayBuffer, which requires the COOP and COEP security headers to be set and for there to be a secure context (either localhost or https).

Cross-Origin-Opener-Policy: same-origin
// And one of:
Cross-Origin-Embedder-Policy: require-corp
Cross-Origin-Embedder-Policy: credentialless

Node.js

Node.js is currently unsupported. There is no technical reason it couldn't be, but figuring out a build system that will support both Node.js and browsers takes some work. PRs to do this will be accepted.

Development

Run npm i to install dependencies.

This project uses Racket's modified Chez Scheme, which has support for compilation to WASM via Emscripten. The binaries for it are not checked in, and you will need to compile them yourself.

Compiling Chez Scheme

You will need gcc, make, sh, and similar programs. If you are using Windows, I recommend using WSL. You will also need to install Emscripten.

Once you have everything installed, run npm run build-chez. This will generate a custom WebAssembly build of Chez Scheme, copy the relevant artifacts into src/chez, and then patch the JavaScript file so that chez-scheme-js can interface with certain internals.

Building

This project uses Webpack, and it can be compiled with npm run build or watched with npm run watch.

Testing

Currently there are no automated tests. There is a playground which can be run with npm start