Method peek

protocol/txvm/stack.go:21–27

(n int64)

}

func (s *stack) peek(n int64) (Item, bool) {
	index := int64(len(*s)) - 1 - n
	if index < 0 || index >= int64(len(*s)) {
		return nil, false
	}
	return (*s)[index], true
}

func (s *stack) push(v Item) {
	*s = append(*s, v)