asyncplify/src/subscribe.js

FRP (functional reactive programming) library for Javascript

Asyncplify.prototype.subscribe = function (options) {
    return new Subscribe(options, this);
};

function Subscribe(options, source) {
    if (options && options.emit)
        this.emit = options.emit;
    else if (typeof options === 'function')
        this.emit = options;
        
    if (options && options.end)
        this.end = options.end;
        
    this.source = null;
    source._subscribe(this);
}

Subscribe.prototype = {
    close: function () {
        this.source.setState(Asyncplify.states.CLOSED);
    },
    pause: function () {
        this.source.setState(Asyncplify.states.PAUSED);
    },
    resume: function () {
        this.source.setState(Asyncplify.states.RUNNING);
    },
    emit: noop,
    end: function (err) {
        if (err) throw err;
    }
};