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Flag extension functions #2

hadley opened this issue May 24, 2018 · 2 comments


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commented May 24, 2018

e.g. dplyr::intersects() makes base::intersect() generic so it shouldn't ever cause problems.


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commented Jul 24, 2018

Latest syntax proposal:

conflict_superset("use_test", "usethis", "devtools")

As suggested in #8, conflicted will assume that any function that overrides a base function follows the superset principle, unless it has attribute conflicted_superset equal to FALSE.


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commented Aug 22, 2018

conflict_superset() appears to be identical to conflict_prefer() so there's no need to implement.

dplyr::filter() and dplyr::lag() are the only functions that I know of that violate the superset principle, so I've hard coded them for now, instead of making extensible. We can reconsider in the future if other functions are discovered.

@hadley hadley closed this in b1d828f Aug 22, 2018

hadley added a commit that referenced this issue Aug 22, 2018

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