nsarray (objective-c) also does something similar https://news.ycombinator.com/item?id=2413656 https://news.ycombinator.com/item?id=2413656 (sadly the article

nsarray (objective-c) also does something similar https://news.ycombinator.com/item?id=2413656 https://news.ycombinator.com/item?id=2413656 (sadly the article link is dead)