emlite 0.1.54

A Rust wrapper around emlite
Documentation 
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use emlite::*;

fn main() {
    emlite::init();
    #[allow(non_snake_case)]
    let mut AudioContext = Val::global("AudioContext");
    if !AudioContext.as_::<bool>() {
        println!("No global AudioContext, trying webkitAudioContext");
        AudioContext = Val::global("webkitAudioContext");
    }

    println!("Got an AudioContext");
    let context = AudioContext.new(&[]);
    let oscillator = context.call("createOscillator", &[]);

    println!("Configuring oscillator");
    oscillator.set("type", "triangle");
    oscillator.get("frequency").set::<_, f64>("value", 261.63); // Middle C

    let document = Val::global("document");
    let elem = document.call("createElement", &argv!["BUTTON"]);
    elem.set("textContent", "Click");
    let body = document.call("getElementsByTagName", &argv!["body"]).at(0);
    elem.call(
        "addEventListener",
        &argv![
            "click",
            Val::make_fn(move |_| {
                println!("Playing");
                oscillator.call("connect", &argv![context.get("destination")]);
                oscillator.call("start", &argv![0]);
                println!("All done!");
                Val::undefined()
            })
        ],
    );
    body.call("appendChild", &argv![elem]);
}