Portable compiler sources that compile to both JavaScript using tsc and WebAssembly using asc.

Note that using the compiler as a library requires awaiting Binaryen ready state, like so:

const binaryen = require("binaryen");
const assemblyscript = require("assemblyscript");
binaryen.ready.then(() => {
  // do something with assemblyscript
});

Note that building the compiler is not necessary if you only want to run it (in development). If not built, ts-node is used to run the sources directly.

To build the compiler to a JavaScript bundle, run:

npm run build

Uses webpack under the hood, building to dist/.

To build the compiler to a WebAssembly binary, run:

npm run bootstrap

Uses the AssemblyScript compiler compiled to JavaScript to compile itself to WebAssembly, building to WebAssembly again using itself compiled to WebAssembly. Builds to out/. Performs a git diff to make sure that both the initial and the final artifacts are the same. Note that this builds the compiler as a library, while the asc frontend setting it up and feeding it source files is JavaScript for now.

Running asc with the WebAssembly variant:

asc [options...] --wasm out/assemblyscript.optimized-bootstrap.wasm

Running the compiler tests with the WebAssembly variant:

npm run test:compiler -- --wasm out/assemblyscript.optimized-bootstrap.wasm