`ends_with()` doesn't work with `expect_col_exists()`

[balthasars]

Prework

• [x] Read and agree to the code of conduct and contributing guidelines.
• [x] If there is already a relevant issue, whether open or closed, comment on the existing thread instead of posting a new issue.
• [x] Post a minimal reproducible example so the maintainer can troubleshoot the problems you identify. A reproducible example is:
  • [x] Runnable: post enough R code and data so any onlooker can create the error on their own computer.
  • [x] Minimal: reduce runtime wherever possible and remove complicated details that are irrelevant to the issue at hand.
  • [x] Readable: format your code according to the tidyverse style guide.

Description

Using ends_with() throws an error message inside expect_col_exists() and col_exists().

Reproducible example

• [x] Post a minimal reproducible example so the maintainer can troubleshoot the problems you identify. A reproducible example is:
  • [x] Runnable: post enough R code and data so any onlooker can create the error on their own computer.
  • [x] Minimal: reduce runtime wherever possible and remove complicated details that are irrelevant to the issue at hand.
  • [x] Readable: format your code according to the tidyverse style guide.

library(pointblank)
df <- tibble::tibble(
  id.x = 1:3,
  id.y = 1:3,
  stuff = 1:3
)

df |>
  expect_col_exists(
    columns = vars(ends_with(".x"))
  )
#> Error in vapply(columns, FUN.VALUE = character(1), USE.NAMES = FALSE, : values must be length 1,
#>  but FUN(X[[1]]) result is length 2


df |>
  col_exists(
    columns = vars(ends_with(".x"))
  )
#> Error in vapply(columns, FUN.VALUE = character(1), USE.NAMES = FALSE, : values must be length 1,
#>  but FUN(X[[1]]) result is length 2

^{Created on 2022-09-22 with reprex v2.0.2}

Expected result

This should run without error — tidyselect helpers should work with expect_col_exists() and col_exists().

Session info

sessionInfo()
#> R version 4.2.1 (2022-06-23)
#> Platform: x86_64-apple-darwin17.0 (64-bit)
#> Running under: macOS Big Sur ... 10.16
#> 
#> Matrix products: default
#> BLAS:   /Library/Frameworks/R.framework/Versions/4.2/Resources/lib/libRblas.0.dylib
#> LAPACK: /Library/Frameworks/R.framework/Versions/4.2/Resources/lib/libRlapack.dylib
#> 
#> locale:
#> [1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/de_DE.UTF-8/en_US.UTF-8
#> 
#> attached base packages:
#> [1] stats     graphics  grDevices utils     datasets  methods   base     
#> 
#> other attached packages:
#> [1] pointblank_0.11.1
#> 
#> loaded via a namespace (and not attached):
#>  [1] pillar_1.8.1      compiler_4.2.1    highr_0.9         R.methodsS3_1.8.2
#>  [5] R.utils_2.12.0    tools_4.2.1       digest_0.6.29     evaluate_0.16    
#>  [9] lifecycle_1.0.1   tibble_3.1.8      R.cache_0.16.0    pkgconfig_2.0.3  
#> [13] rlang_1.0.5       reprex_2.0.2      DBI_1.1.3         cli_3.3.0        
#> [17] rstudioapi_0.14   yaml_2.3.5        xfun_0.32         fastmap_1.1.0    
#> [21] withr_2.5.0       styler_1.7.0      stringr_1.4.1     dplyr_1.0.10     
#> [25] knitr_1.40        generics_0.1.3    fs_1.5.2          vctrs_0.4.1      
#> [29] tidyselect_1.1.2  glue_1.6.2        R6_2.5.1          fansi_1.0.3      
#> [33] rmarkdown_2.16    blastula_0.3.2    purrr_0.3.4       magrittr_2.0.3   
#> [37] htmltools_0.5.3   assertthat_0.2.1  utf8_1.2.2        stringi_1.7.8    
#> [41] R.oo_1.25.0