Coercing a data.frame with a list column to a tibble

[nbenn]

This might be a bit of an exotic bug report/feature request, but anyways, assume data.frame df as

df <- data.frame(a = 1:3, b = I(list(1, 1:2, 1:3)))
#   a       b
# 1 1       1
# 2 2    1, 2
# 3 3 1, 2, 3

now if this is coerced to a tibble as

as_tibble(df)
# # A tibble: 3 x 2
#       a          b
#   <int> <S3: AsIs>
# 1     1 <S3: AsIs>
# 2     2 <S3: AsIs>
# 3     3 <S3: AsIs>

the result is not what could be expected:

tibble::tibble(a = 1:3, b = list(1, 1:2, 1:3))
# # A tibble: 3 x 2
#       a         b
#   <int>    <list>
# 1     1 <dbl [1]>
# 2     2 <int [2]>
# 3     3 <int [3]>

[krlmlr]

The formatting looks odd, we'll definitely change it soon. But I don't think we should be stripping the AsIs class, because this seems merely a shortcut to be able to create a list column in the data.frame() constructor:

df <- data.frame(a = 1:3)
df$b <- list(1, 1:2, 1:3)
tibble::as_tibble(df)
#> # A tibble: 3 x 2
#>       a b        
#>   <int> <list>   
#> 1     1 <dbl [1]>
#> 2     2 <int [2]>
#> 3     3 <int [3]>

[github-actions]

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