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[R-pkg-devel] Conditionally register method with generic in other package

Bill Denney 
One simple solution would be to wrap the instantiation of foo.bar in a require test:

if (require(A)) {
  foo.bar <- function(...) {
    print("To be or not to be")
  }
} else {
  message("To use the foo.bar function, please install package A.")
}

Thanks,

Bill

Thread (6 messages)

Joshua Ulrich Conditionally register method with generic in other package Dec 6 Bill Denney Conditionally register method with generic in other package Dec 6 Duncan Murdoch Conditionally register method with generic in other package Dec 6 Joshua Ulrich Conditionally register method with generic in other package Dec 7 Hadley Wickham Conditionally register method with generic in other package Dec 7 Hadley Wickham Conditionally register method with generic in other package Dec 7