caller reflection bug about go-socket.io HOT 2 CLOSED

func (c *caller) Call(so Socket, args []interface{}) []reflect.Value {
    var a []reflect.Value
    diff := 0
    if c.NeedSocket {
        diff = 1
        a = make([]reflect.Value, len(args)+1)
        a[0] = reflect.ValueOf(so)
    } else {
        a = make([]reflect.Value, len(args))
    }
    for i, arg := range args {
        v := reflect.ValueOf(arg)
        if c.Args[i].Kind() != reflect.Ptr {
            v = v.Elem()
        }
        a[i+diff] = v
    }

    return c.Func.Call(a)
}