repeat last call

[ggrothendieck]

A feature I would find useful is to repeat the last call without having to pass any parameters.

When debugging if there is a complex setup to generate the parameters possibly done through a gui that runs a function f then it would nice to be able to re-run f without the gui by just running f(), say.

Currently I do this (plus various error check that are not shown):

f <- function(x) {
  if (nargs() == 0) return(do.call("f", .GlobalEnv$.f))
  assign(".f", mget(ls()), .GlobalEnv)
  x+1
}

f(3)
## [1] 4

f() # rerun using last set of arguments
## [1] 4