File: utils.R

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r-cran-httpuv 1.4.5.1%2Bdfsg-1
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# A memoized wrapper for packageVersion(), because it is a fairly slow function
# which is called often. We can't get the version at build time because the
# package won't have been installed yet. Instead, we'll get it at run time and
# cache it.
httpuv_version <- local({
  version <- NULL

  function() {
    if (is.null(version)) {
      version <<- utils::packageVersion("httpuv")
    }
    version
  }
})