Consistent dots-splicing

[egnha]

Some functions support dots-splicing, e.g.,

compose(log, abs)
compose(!!!list(log, abs))

while others do not, e.g.,

map(letters, paste, 1:3, sep = "_")
map(letters, paste, !!!list(1:3, sep = "_"))  # error

Should dots-splicing behavior be more consistent across purrr?

(I presume this might already be under consideration for tidyverse packages, generally. Just flagging it for the record ... )

[lionel-]

I've just started looking into this 2 minutes ago ;)

[lionel-]

This is not as trivial as I thought because as_mapper() also takes the dots, and we need to be careful to evaluate spliced arguments only once. So for now we'll just have to rely on the mapped function to support tidy dots.

[egnha]

That was my feeling as well. One workaround for effectively making map_*() comprehend dots-splicing would be for partial() to comprehend dots-splicing (cf. #457). But I'm not sure whether that'd be a practical alternative (how many users would think to do that?), not to mention the added verbosity.