klass

klass.js

// https://github.com/Raynos/pd
var pd = typeof window === "undefined" ? require("pd") : window.pd;

var klass = (function() {
    // meta data name
    var meta = pd.Name();

    return klass;

    function klass(parent, child) {
        // if one argument set parent to Object
        if (!child) {
            child = parent;
            parent = Object;
        }
        
        
        if (parent !== Object) {
            // extract privates from meta data on parent
            var privates = meta(parent).privates;
        } else {
            // if parent is object create new name
            var privates = pd.Name();
        }
        
        // create new prototype object by inheriting from Parent
        var proto = pd.extend(Object.create(parent.prototype), child(privates, parent.prototype));
        
        // fix constructor <-> prototype link
        proto.constructor.prototype = proto;
        
        // get the constructor function
        var constructor = proto.constructor;
        // store the privates as meta data on this constructor
        meta(constructor).privates = privates;
        return constructor;
    }
})();