Totally agree; it's almost perfect, but this is defnly needed to get to full perfection. While you can argue (as people do on that issue) that there are workar

Totally agree; it's almost perfect, but this is defnly needed to get to full perfection. While you can argue (as people do on that issue) that there are workarounds to carry error payload, the truth is if you don't make it ergonomic, many libraries will not do it, and that will filter down into software using those libraries, thus hurting the final resulting software. I'm hopeful this feature will eventually get added. (See also https://news.ycombinator.com/item?id=25798578 https://news.ycombinator.com/item?id=25798578)