Simplify zeroGrob()
#6391
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Simplify zeroGrob()
#6391
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teunbrand
commented
Apr 2, 2025
| zeroGrob <- function() .zeroGrob | ||
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| .zeroGrob <- NULL | ||
| on_load(.zeroGrob <- add_class(nullGrob(), "zeroGrob")) |
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The zeroGrob class is appended here, because inherits(x, "zeroGrob") is sometimes used instead of is.zero(). I expect the situation to be the same in extension packages.
teunbrand
commented
Apr 2, 2025
| #' | ||
| #' @keywords internal | ||
| #' @export | ||
| zeroGrob <- function() .zeroGrob |
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I've not removed this function altogether because there is some optimisation value in only constructing the .zeroGrob object once per session instead of all over the place. Moreover, I expect it might be prevalent in extensions.
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This PR aim to fix #6390.
Briefly, instead of implementing a full
<zeroGrob>class, we piggyback on thegrid::nullGrob().Simplification is the goal of this PR.