jonkeane edited a comment on pull request #11904:
URL: https://github.com/apache/arrow/pull/11904#issuecomment-996205361


   > > Why is attaching a package name useful?
   > 
   > I think two things...it means we can evaluate stringr::str_detect() 
without changing much of our code (just implement a binding for ::), and it 
makes it easier for us or for a user to query which packages are supported and 
functions are implemented (so they can avoid the "not implemented, pulling data 
into R" message).
   
   Yeah, an additional benefit is that it makes it slightly more explicit what 
we intend when we bind to a specific function. I don't know of any overlaps 
that we have right now (e.g. where dplyr has one function with the name `foo` 
and lubridate also has a function name `foo`), but looking back and trying to 
piece together the intention would involve at least a `git blame` (and maybe a 
Jira search too). Though in fairness, moving all the functions for each package 
to their own file pretty effectively does this as well.
   
   I do think we will want namespacing with `::` to be resolved sooner rather 
than later (to be totally honest, I'm quite surprised we haven't seen more 
Jiras about it! I've reviewed _a lot_ of code in other places and have seen a 
number of styles that include either always using `::`, or using it liberally 
to avoid confusion/mistakes. But then again, maybe folks are using 
`stringr::str_detect()` getting the error message and thinking it's not 
implemented and thinking that means it's not implemented at all so pulling data 
into R.)
   
   > > Why is "omitting translations if a package isn't installed" valuable?
   > 
   > ...probably not at all (in fact, probably negatively valuable). Maybe one 
way to resolve a name conflict?
   
   Yeah, part of me things this might be neat (you get the namespace you have 
installed!) it sounds nice and clean (it follows R's namespacing, nothign new 
to learn!), but I think ultimately / functionally it's negatively valuable like 
you say.
   
   
   


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