Unable to use Sass built in color module

[yogat3ch]

This might also be a feature request depending on how you look at it?

Describe the problem

The sass:color module appears to be unsupported by the package at present:

require("sass")
#> Loading required package: sass
 sass::sass(
   "@use 'sass:color';
   .class {
     color: adjust-color(#23fe45, $whiteness: 30%);  
       }
   "
 )
#> Error in compile_data(sass_input, options): Error: Function adjust-color has no parameter named $whiteness
#>         on line 3:35 of stdin
#> >>      color: adjust-color(#23fe45, $whiteness: 30);  
#> 
#>    ----------------------------------^
 sass::sass(
   "@use 'sass:color';
   .class {
     color: color.adjust(#23fe45, $whiteness: 30%);  
       }
   "
 )
#> Error in compile_data(sass_input, options): Error: Invalid CSS after "...   color: color": expected expression (e.g. 1px, bold), was ".adjust(#23fe45, $w"
#>         on line 3:18 of stdin
#> >>      color: color.adjust(#23fe45, $whiteness: 30);  
#> 
#>    -----------------^

^{Created on 2022-12-15 with reprex v2.0.2}

Session Info

─ Session info ───────────────────────────────────────────────────────────────────────────────────────────────────
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 date     2022-12-15
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BOR             0.2.1      2022-12-13 [1] Github (Martin-McCoy/BOR@a876853)

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callr           3.7.2      2022-08-22 [1] CRAN (R 4.2.0)

cellranger      1.1.0      2016-07-27 [1] CRAN (R 4.2.0)

cicerone        1.0.5.9000 2022-10-18 [1] Github (JohnCoene/cicerone@1f28ea4)

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P  memoise         2.0.1      2021-11-26 [?] CRAN (R 4.2.0)

mime            0.12       2021-09-28 [1] CRAN (R 4.2.0)

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P  plyr            1.8.7      2022-03-24 [?] CRAN (R 4.2.0)

P  pool            0.1.6      2021-01-14 [?] CRAN (R 4.2.0)

prettyunits     1.1.1      2020-01-24 [1] CRAN (R 4.2.0)

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profvis         0.3.7      2020-11-02 [1] CRAN (R 4.2.0)

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ps              1.7.1      2022-06-18 [1] CRAN (R 4.2.0)

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P  R6              2.5.1      2021-08-19 [?] CRAN (R 4.2.0)

P  Rcpp            1.0.9      2022-07-08 [?] CRAN (R 4.2.0)

reactable       0.3.0      2022-05-26 [1] CRAN (R 4.2.0)

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renv            0.16.0     2022-09-29 [1] CRAN (R 4.2.1)

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R  RiverViz      * 0.0.0.9002        [?] 

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P  rstudioapi      0.14       2022-08-22 [?] CRAN (R 4.2.0)

sass            0.4.3.9000 2022-12-15 [1] Github (rstudio/sass@3e61ef8)

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shinyjs         2.1.0      2021-12-23 [1] CRAN (R 4.2.0)

shinyVirga      0.6.1      2022-12-14 [1] Github (Martin-McCoy/shinyVirga@eea3704)

P  snakecase       0.11.0     2019-05-25 [?] CRAN (R 4.2.0)

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tippy           1.0.0      2022-12-07 [1] Github (JohnCoene/tippy@c3c3a2a)

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xtable          1.8-4      2019-04-21 [1] CRAN (R 4.2.0)

yaml            2.3.6      2022-10-18 [1] CRAN (R 4.2.1)
[1] /Users/stephenholsenbeck/Documents/R/Contributor_Repos/VirgaLabs/RiverViz/renv/library/R-4.2/aarch64-apple-darwin20

[2] /Users/stephenholsenbeck/Documents/R/Contributor_Repos/VirgaLabs/RiverViz/renv/sandbox/R-4.2/aarch64-apple-darwin20/84ba8b13
V ── Loaded and on-disk version mismatch.

P ── Loaded and on-disk path mismatch.

R ── Package was removed from disk.
──────────────────────────────────────────────────────────────────────────────────────────────────────────────────

[cpsievert]

Currently {sass} uses LibSass under the hood, but those docs are primarily written with Dart Sass in mind. We will, hopefully, add Dart Sass support (#97).

With that in mind, if you looks at those docs carefully, it says that $whiteness and $blackness is only supported in Dart Sass

You can still use adjust-color color though, just not those arguments:

> sass::sass("foo { color: adjust-color(red, $hue: -6deg); }")
/* CSS */
foo {
  color: #ff001a;
}

Closing since this essentially a duplicate of #97

[yogat3ch]

Oh boy, I somehow overlooked the Xs thinking they were a close tab icon 😅 Pattern recognition gone wrong. I was hoping to adjust the lightness, and ended up just doing it in R with colorscape::lighten and glueing in via some inline use of sass. Thank you for the response @cpsievert!