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Retain class inheritance #62

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Retain class inheritance #62

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f17b295
Update class inheritance upon `restore_labels`
chartgerink Jan 6, 2025
6c50d74
Update WORDLIST
chartgerink Jan 6, 2025
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4 changes: 3 additions & 1 deletion R/restore_labels.R
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Original file line number Diff line number Diff line change
Expand Up @@ -59,7 +59,9 @@ restore_labels <- function(x, newLabels,

# Ensure class consistency
if (!inherits(x, "safeframe")) {
class(x) <- c("safeframe", class(x))
current_classes <- class(x)
df_index <- which(current_classes == "data.frame")
class(x) <- append(current_classes, "safeframe", after = df_index - 1)
}

x
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1 change: 1 addition & 0 deletions inst/WORDLIST
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Expand Up @@ -11,6 +11,7 @@ lifecycle
linelist
messspeeds
rlang
struct
tibble
tidyselect
tidyverse
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18 changes: 18 additions & 0 deletions tests/testthat/test-restore_labels.R
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Expand Up @@ -26,3 +26,21 @@ test_that("tests for restore_labels", {
x$speed <- "test3"
expect_equal(class(x), c("safeframe", "data.frame"))
})

test_that("retain class inheritance #56", {

x <- make_safeframe(
cars,
speed = "Miles per hour"
)
class(x) <- c("linelist", class(x))
class(x)
#> [1] "linelist" "safeframe" "data.frame"

y <- suppressWarnings(x[, 1])
#> Warning: The following labelled variables are lost:
#> dist - NULL
class(y)

expect_equal(class(x), class(y))
})
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