Cargo.toml

Cargo.toml

[package]
name = "loop"
version = "0.0.1"
edition = "2018"

[lib]
crate-type = [ "cdylib" ]

[dependencies]
chrono = "0.4"

lib.rs

// Goes in `src` folder
// brew install wasmtime
// cargo install cargo-wasi

#[link(wasm_import_module = "./binding.js")]
extern "C" {
	#[link_name="getTime"] fn get_time() -> i32;
}

#[no_mangle]
pub unsafe extern "C" fn r#loop() {
	println!("Starting tick[{}] @ {:?}", get_time(), chrono::offset::Local::now());
}