There's an old saying familiar to us Ancient Ones - "don't handle errors you can't actually handle".
One of the great classics of the genre was the Windows error  that used to happen so frequently it was beyond a joke; the "attempt to execute an illegal instruction" error window had the hilarious option to just continue. 

> On 2019-12-22, at 6:22 AM, Marcel Taeumel <marcel.taeumel at hpi.de> wrote:
> 
> > :)  Otherwise, I would consider it a bad idea... 
> 
> Yeah, that on-error-do stuff should only be used carefully and rarely. I think there are other cases in our tools where such error handling is employed. Good for robustness as long as we can come up with a fallback like your empty array.

tim
--
tim Rowledge; tim at rowledge.org; http://www.rowledge.org/tim
Cloister: a pretentious clam