Function CheckOption

auxiliary.go:405–419

(l *State, index int, def string, list []string)

}

func CheckOption(l *State, index int, def string, list []string) int {
	var name string
	if def == "" {
		name = OptString(l, index, def)
	} else {
		name = CheckString(l, index)
	}
	for i, s := range list {
		if name == s {
			return i
		}
	}
	ArgumentError(l, index, l.PushFString("invalid option '%s'", name))
	panic("unreachable")
}

func SubTable(l *State, index int, name string) bool {
	l.Field(index, name)