passing input data frame to exec

[ggrothendieck]

How is it that the first of these works but not the rest?

library (dplyr)
# ...snip...
library (purrr)

BOD %>% mutate(sum = exec(pmin, !!!.)) # works
##   Time demand sum
## 1    1    8.3   1
## 2    2   10.3   2
## 3    3   19.0   3
## 4    4   16.0   4
## 5    5   15.6   5
## 6    7   19.8   7

BOD %>% mutate(sum = exec(pmin, !!!pick(everything())))
## Error in `pick()`:
## ! Must only be used inside data-masking verbs like `mutate()`, `filter()`, and `group_by()`.
## Run `rlang::last_trace()` to see where the error occurred.

BOD %>% mutate(sum = exec(pmin, !!!cur_data()))
## Error in `cur_data()`:
## ! Must only be used inside data-masking verbs like `mutate()`, `filter()`, and `group_by()`.
## Run `rlang::last_trace()` to see where the error occurred.
## Warning message:
## `cur_data()` was deprecated in dplyr 1.1.0.
## ℹ Please use `pick()` instead.
## This warning is displayed once every 8 hours.
## Call `lifecycle::last_lifecycle_warnings()` to see where this warning was generated. 
 
BOD %>% mutate(sum = exec(pmin, !!!.data))
## Error in `mutate()`:
## ℹ In argument: `sum = exec(pmin)`.
## Caused by error:
## ! no arguments
## Run `rlang::last_trace()` to see where the error occurred.

[hadley]

Because !!! evaluated by mutate() — I think that will be a bit easier to see if you look at the tracebacks.