UglifyJS config to remove asserts and debug code from webix_debug.js

gistfile1.js

var is_debug_name = function(name){
    var test = name.toString();
    if ((test.indexOf("debug") === 0) || (test.indexOf("log") === 0) || (test.indexOf("assert") === 0))
        return true;
};

var is_private_name = function(name){
    if (name.toString().charAt(0) == "_") return true;
};

var empty_code = function(orig){
    var temp = new UglifyJS.AST_False();
    if (orig){
        temp.start = orig.start;
        temp.end = orig.end;
    }
    return temp;
};

var remove_debug_code = new UglifyJS.TreeTransformer(function(node, descend){
    //some.debug();
    if (node instanceof UglifyJS.AST_Call && node.expression instanceof UglifyJS.AST_Dot){
        if (is_debug_name(node.expression.property))
            return empty_code();
    } else

    //if (some.debug)
    if (node instanceof UglifyJS.AST_If && node.condition instanceof UglifyJS.AST_Dot){
        if (is_debug_name(node.condition.property)){
            node.condition = empty_code(node.condition);
            return node;
        }
    } else

    //some.debug = value;
    if (node instanceof UglifyJS.AST_Assign && node.left instanceof UglifyJS.AST_Dot){
        if (is_debug_name(node.left.property))
            return empty_code();
    } else 

    if (node instanceof UglifyJS.AST_Object){
        for (i=node.properties.length-1; i>=0; i--)
            if (is_debug_name(node.properties[i].key))
                node.properties.splice(i,1);
    }

    descend(node, this);
    return node;
});