Should deferred_run() work within knitr?

[maelle]

I observe that using deferred_run() doesn't work within R Markdown document, including reprexes. Is it supposed to work? The same code works fine in my R session, that is to say, the blop option is NULL after the call to deferred_run().

getOption("blop")
#> NULL

withr::local_options(blop = FALSE)

getOption("blop")
#> [1] FALSE

withr::deferred_run()

getOption("blop")
#> [1] FALSE

^{Created on 2023-10-16 with reprex v2.0.2}

Session info

sessioninfo::session_info()
#> ─ Session info ───────────────────────────────────────────────────────────────
#>  setting  value
#>  version  R version 4.2.0 (2022-04-22)
#>  os       Ubuntu 20.04.6 LTS
#>  system   x86_64, linux-gnu
#>  ui       X11
#>  language en_US.utf8
#>  collate  en_US.utf8
#>  ctype    en_US.utf8
#>  tz       Europe/Paris
#>  date     2023-10-16
#>  pandoc   3.1.1 @ /usr/lib/rstudio/resources/app/bin/quarto/bin/tools/ (via rmarkdown)
#> 
#> ─ Packages ───────────────────────────────────────────────────────────────────
#>  package     * version     date (UTC) lib source
#>  cli           3.6.1       2023-03-23 [1] RSPM
#>  digest        0.6.33      2023-07-07 [1] CRAN (R 4.2.0)
#>  evaluate      0.22        2023-09-29 [1] CRAN (R 4.2.0)
#>  fastmap       1.1.1       2023-02-24 [1] RSPM
#>  fs            1.6.3       2023-07-20 [1] RSPM (R 4.2.0)
#>  glue          1.6.2       2022-02-24 [1] RSPM (R 4.2.0)
#>  htmltools     0.5.6.1     2023-10-06 [1] CRAN (R 4.2.0)
#>  knitr         1.44        2023-09-11 [1] RSPM (R 4.2.0)
#>  lifecycle     1.0.3       2022-10-07 [1] RSPM (R 4.2.0)
#>  magrittr      2.0.3       2022-03-30 [1] RSPM (R 4.2.0)
#>  purrr         1.0.2       2023-08-10 [1] RSPM (R 4.2.0)
#>  R.cache       0.16.0      2022-07-21 [1] CRAN (R 4.2.0)
#>  R.methodsS3   1.8.2       2022-06-13 [1] RSPM
#>  R.oo          1.25.0      2022-06-12 [1] RSPM
#>  R.utils       2.12.2      2022-11-11 [1] RSPM (R 4.2.0)
#>  reprex        2.0.2       2022-08-17 [1] RSPM
#>  rlang         1.1.1       2023-04-28 [1] RSPM (R 4.2.0)
#>  rmarkdown     2.25        2023-09-18 [1] RSPM (R 4.2.0)
#>  rstudioapi    0.15.0      2023-07-07 [1] CRAN (R 4.2.0)
#>  sessioninfo   1.2.2       2021-12-06 [1] RSPM (R 4.2.0)
#>  styler        1.10.2      2023-08-29 [1] RSPM
#>  vctrs         0.6.4       2023-10-12 [1] RSPM
#>  withr         2.99.0.9000 2023-10-09 [1] Github (r-lib/withr@0c5254e)
#>  xfun          0.40        2023-08-09 [1] RSPM (R 4.2.0)
#>  yaml          2.3.7       2023-01-23 [1] RSPM
#> 
#>  [1] /home/maelle/R/x86_64-pc-linux-gnu-library/4.2
#>  [2] /opt/R/4.2.0/lib/R/library
#> 
#> ──────────────────────────────────────────────────────────────────────────────

[hadley]

It does seem like this should work.

[lionel-]

We're throwing an error for now, though that's still something we'd like to fix at some point. It will involve using a different strategy for attaching handlers to the knitr frame.

[lionel-]

Fixed after all!

[maelle]

Fantastic, thank you! 🎉