src/lib.rs


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use log::{Level, debug, info};
use console_log;
use wasm_bindgen::prelude::*;

mod forth;

#[wasm_bindgen]
extern {
    #[wasm_bindgen(js_namespace = console)]
    fn debug(s: &str);
}

#[wasm_bindgen]
pub fn compile() {
    info!("compiling code");
}

#[wasm_bindgen]
pub fn tick() {
    info!("executing single instruction");
}

#[wasm_bindgen]
pub fn run() {
    info!("running to completion");
}

#[wasm_bindgen(start)]
pub fn init() -> Result<(), JsValue> {
    console_log::init_with_level(Level::Debug).expect("couldn't init console log");
    debug!("starting run");

    let window = web_sys::window().expect("no global `window` exists");
    let document = window.document().expect("should have `document` on window");
    let body = document.body().expect("document should have `body`");

    let val = document.create_element("p")?;
    val.set_text_content(Some("hi there"));
    body.append_child(&val)?;

    debug!("done in rust's run");

    Ok(())
}