Post

How often do people run into the SetFinalizer footguns in Go? (Accidental cycle, for example.) Would a GODEBUG that does something slow but tells you when you've made a mistake be useful to you? (Maybe even just for tests, to prevent a regression?) Sketch: go-review.googlesource.com/c/go/+/634599

I wonder how often such mistakes are even noticed. E.g., if you fail to close an FD, probably nothing bad happens in the vast majority of cases.