magrittr pipelines stop()-ing with vctrs' %0%?

General
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1

I'm curious if anyone has used this pattern with success?
And are there any pitfalls folks might see here?

Pipeline terminating with %0% stop()

Take an arbitrary dplyr pipeline that might yield zero rows, and in those cases you want to return a special object that's also returned if there are any errors encountered along the pipeline:

tryCatch({
  data %>%
    f1() %>%
    f2() %>%
    f3() %0% stop()
}, error = function(e) {
  ## perhaps warn here.
  my_default_sentinel_obj
})

Note that the last step of the pipeline is %0% stop() (using vctrs's %0%).

This appears to be a very compact 'last step checker' of a pipeline, which could also be written like so (amongst other ways):

    f(3) %>% function(x) if (nrow(x) == 0) stop() else x  ## functionally same as above?

Have other folks ever used the compact pattern?
Some light testing suggests it works just fine, but perhaps I'm missing some nuanced pitfalls?

2

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