JsPHP: a JavaScript library providing the PHP API

function deaggregate (obj, class_name) {
    // http://jsphp.co/jsphp/fn/view/deaggregate
    // +   original by: Brett Zamir (http://brett-zamir.me)
    // *     example 1: var A = function () {};
    // *     example 1: A.prop = 5;
    // *     example 1: A.prototype.someMethod = function () {};
    // *     example 1: var b = {};
    // *     example 1: aggregate(b, 'A');
    // *     example 1: deaggregate(b, 'A');
    // *     returns 1: undefined

    var p = '',
        idx = -1,
        pos = -1,
        i = 0,
        indexOf = function (value) {
            for (var i = 0, length = this.length; i < length; i++) {
                if (this[i] === value) {
                    return i;
                }
            }
            return -1;
        },
        getFuncName = function (fn) {
            var name = (/\W*function\s+([\w\$]+)\s*\(/).exec(fn);
            if (!name) {
                return '(Anonymous)';
            }
            return name[1];
        };

    if (!this.php_js || !this.php_js.aggregateRecords || !this.php_js.aggregateKeys || !this.php_js.aggregateClasses) {
        return;
    }

    if (!this.php_js.aggregateKeys.indexOf) {
        this.php_js.aggregateKeys.indexOf = indexOf;
    }
    idx = this.php_js.aggregateKeys.indexOf(obj);
    if (idx === -1) {
        return;
    }

    if (class_name) {
        if (typeof class_name === 'string') { // PHP behavior
            class_name = this.window[class_name];
        }
        if (!this.php_js.aggregateClasses[idx].indexOf) {
            this.php_js.aggregateClasses[idx].indexOf = indexOf;
        }
        pos = this.php_js.aggregateClasses[idx].indexOf(getFuncName(class_name));
        if (pos !== -1) {
            for (p in this.php_js.aggregateRecords[idx][pos]) {
                delete obj[p];
            }
            this.php_js.aggregateClasses[idx].splice(pos, 1);
            this.php_js.aggregateRecords[idx].splice(pos, 1);
        }
    } else {
        for (i = 0; i < this.php_js.aggregateClasses[idx].length; i++) {
            for (p in this.php_js.aggregateRecords[idx][i]) {
                delete obj[p];
            }
        }
        this.php_js.aggregateClasses.splice(idx, 1);
        this.php_js.aggregateRecords.splice(idx, 1);
    }
}