Method AbsIndex

lua.go:541–546

AbsIndex converts the acceptable index index to an absolute index (that is, one that does not depend on the stack top). http://www.lua.org/manual/5.2/manual.html#lua_absindex

(index int)

//
// http://www.lua.org/manual/5.2/manual.html#lua_absindex
func (l *State) AbsIndex(index int) int {
	if index > 0 || isPseudoIndex(index) {
		return index
	}
	return l.top - l.callInfo.function + index
}

// SetTop accepts any index, or 0, and sets the stack top to index. If the
// new top is larger than the old one, then the new elements are filled with