search for: enexpr

..., a = 1, c = 3) }) #> f1 f2 f3 f4 #> 1 1 1 1 # View the (defused) arguments after `a` has been accessed: # returns an expression if the argument has not been evaluated, and a number if it has check_forced_args <- function(f) { body(f) <- call("{", body(f), quote(rlang::enexprs(...))) # pass `f()` some expressions to see which are evaluated f(a = cos(0), b = sqrt(4)) } # make a data frame showing the defused arguments for each function lapply(ff, check_forced_args) |> do.call(rbind, args = _) |> as.data.frame() #> a b #> f1 1 2...

That's very nice, Hadley. Simple and clean. Never would have thought of it myself. As usual, however, in the course of my churnings, I have a further complication to add. But first ... **TO ALL**: Feel free to ignore the following, as I'm just fooling around here and don't want to waste your time with my stupid stuff. Anyway, the complication is motivated by the use of formals() or