In examples, unexported functions cause 'masking' from other packages' exported functions

[HughParsonage]

If a package contains a function that is not exported, but conflicts with the namespace of a package attached in an example, the rendered example will spuriously warn about the attached package masking an object in the package.

For example: https://hughparsonage.github.io/pkgdown-masking-eg/reference/in_range.html

Full package to reproduce: https://github.com/HughParsonage/pkgdown-masking-eg

R/in_range.R

#' In range
#' @param x,a,b Inputs
#' @examples
#' library(dplyr)
#' in_range(1, 0, 2)
#' @export 
in_range <- function(x, a, b) all(between(x, a, b))

# Just to confuse dplyr
between <- function(y, a, b) y >= a & y <= b

[hadley]

Long-term fix is #749

Short-term fix: update arguments to devtools::load_all() (and replace with pkgload() while I'm in there)

[hadley]

Thinking about this more I think this reveals a problem with the namespace of your package, but I think we shouldn't be loading unexported functions anyway.