Invalid, Bool, Int, Int8 there are const integers, and they are specifying the entry's position in the slice, allowing gaps in the list to be implicitly defined.
See this example: https://play.golang.org/p/KVqO40R6mP -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.