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`check_dots_used()` should customise error if no arguments named #1641

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hadley opened this issue Jul 26, 2023 · 0 comments

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hadley commented Jul 26, 2023

x <- c(1, 2, 10, NA)

mean3 <- function(x, ..., na.rm = FALSE, trim = 0) {
  rlang::check_dots_used()
  mean(x, ..., na.rm = na.rm, trim = trim)
}

mean3(x, , TRUE)
#> Error in `mean3()`:
#> ! Arguments in `...` must be used.
#> ✖ Problematic argument:
#> • ..1 = TRUE
#> ℹ Did you misspell an argument name?

^{Created on 2023-07-26 with reprex v2.0.2}

Should be:

#> ℹ Did you forget to name an argument?

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