R: Examples for 'rlang::check_dots

### ** Examples

f <- function(x, ..., foofy = 8) {
  check_dots_empty()
  x + foofy
}

# This fails because `foofy` can't be matched positionally
try(f(1, 4))

Error in f(1, 4) : `...` must be empty.
✖ Problematic argument:
• ..1 = 4
ℹ Did you forget to name an argument?

# This fails because `foofy` can't be matched partially by name
try(f(1, foof = 4))

Error in f(1, foof = 4) : `...` must be empty.
✖ Problematic argument:
• foof = 4

# Thanks to `...`, it must be matched exactly
f(1, foofy = 4)

[1] 5

Examples for 'rlang::check_dots_empty'

Check that dots are empty