"needs export/exportS3Method" warning for conditionally-registered method

[MichaelChirico]

In {bit64}, we register some S3 methods conditionally, because the generic is not available on all supported R versions. This generates some noise in roxygenize():

✖ ops64.R:159: S3 method `chooseOpsMethod.integer64` needs @export or @exportS3Method tag.
✖ integer64.R:786: S3 method `print.bitstring` needs @export or @exportS3Method tag.
✖ patch64.R:103: S3 method `mtfrm.integer64` needs @export or @exportS3Method tag.

We do have exportS3Method() in the NAMESPACE, but it's in @rawNamespace because of the conditionality:

#' @rawNamespace if (getRversion() >= "4.3.0") S3method(chooseOpsMethod,integer64)
chooseOpsMethod.integer64 = function(x, y, mx, my, cl, reverse) {
  TRUE
}

What's the recommendation here?

[hadley]

You can use @exportS3Method NULL to silence the warning

I need to document this in both ?"@exportS3Method" and in the S3 vignette 😐