what is progressr's error handling model?

[twest822]

Couldn't find this in the docs, previous discussions, or issues. Given code like

p = progressor(steps = n)
tryCatch({
    for(i in 1:n)
    {
      # perform task step
      p()
    }
  },
  error = function(e)
  {
    # do error handling
  })

what action, if any, should the error handler take notify p of the abort and that the progress bar can be disposed rather than getting calls to p() all the way to 100%?

I'm not seeing that progressr has an API for this so I'm wondering if perhaps the design is that callers should do

with_progress({ tryCatch({ ... }, { ... }) })

with progressr disposing when the with_progress block returns regardless of the number calls of p() which might have been missed due to an error occurring? Class progressor has only length and print methods so it doesn't appear possible or for callers to query it for the number of times to call p() to reach completion (not that completion particularly makes much sense an error condition).

Asking because I've got long running future_map()s calling numerical optimization methods that sometimes fail and occasionally future gets hung up when a worker errors and has to be reset. This not uncommonly yields a bunch of complaints from progressr about incomplete progressors.