How to Run
You'll need Rust and Node installed on your machine.
Build the WASM
To build the WASM, which we'll run inside the host program:
cd wasm npm run asbuild:optimized
This will compile the Assemblyscript module down to WASM, resulting in a
Build the Host
Now we've built the WASM, we need to build our Rust host. In the repo root run:
This will install the Wasmer library (WASM runtime) and build our WASM executor.
This is a blueprint for embedding a WASM interpreter in your program. It doesn't do anything interesting yet, but it's an easy starting point for your WASM based projects.
- Replace Rust: Wasmer supports a whole heap of host languages, so you can run WASM with whatever program/language you want
- Replace Assemblyscript: As we compile our module down to WASM to run it, you can write your module in any language with a WASM backend (which is most of them by now ...)
- Extend imports: Right now our host exposes just a couple of functions to the loaded WASM, so we can't do much very interesting work. Add extra functions to the
import_objectvariable to let your WASM do something more interesting.
For brevity & simplicity, the generated WASM is currently statically linked to the host at build time (using
include_bytes!). So every time you change your WASM you'll need to re-build it and re-build the host. Which isn't ideal. You'll likely want to replace that with a file loader before you get too far.