> I think at best there will be a static analysis rule (in e.g. go vet) that tries to figure out if any matching is done on the string representation of an erro

> I think at best there will be a static analysis rule (in e.g. go vet) that tries to figure out if any matching is done on the string representation of an error. First they'd need to export the errors the stdlib returns https://news.ycombinator.com/item?id=41507714 https://news.ycombinator.com/item?id=41507714 I wouldn't hold my breath on that one.