Faster parse_transform_serialize_r_block()

[krlmlr]

Avoiding repeated bind_rows() in transformer.

[codecov-commenter]

Codecov Report

Merging #1112 (1ec1fa8) into main (940010d) will increase coverage by 0.01%.
The diff coverage is 100.00%.

❗ Current head 1ec1fa8 differs from pull request most recent head 6111fef. Consider uploading reports for the commit 6111fef to get more accurate results

@@            Coverage Diff             @@
##             main    #1112      +/-   ##
==========================================
+ Coverage   91.07%   91.09%   +0.01%     
==========================================
  Files          46       46              
  Lines        2712     2717       +5     
==========================================
+ Hits         2470     2475       +5     
  Misses        242      242              

Impacted Files	Coverage Δ
R/transform-block.R	100.00% <100.00%> (ø)
R/visit.R	94.94% <100.00%> (+0.15%)	⬆️

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[github-actions]

This is how benchmark results would change (along with a 95% confidence interval in relative change) if 940010d is merged into main:

•   :ballot_box_with_check:cache_applying: 203ms -> 203ms [-1%, +1.41%]
•   :rocket:cache_recording: 942ms -> 898ms [-5.01%, -4.35%]
•   :rocket:without_cache: 1.95s -> 1.83s [-6.39%, -5.93%]

Further explanation regarding interpretation and methodology can be found in the documentation.

[lorenzwalthert]

solid speed improvement. Can't say no to that :D

[github-actions]

This is how benchmark results would change (along with a 95% confidence interval in relative change) if 940010d is merged into main:

• ❗🐌cache_applying: 311ms -> 1.63s [+422.36%, +426%]
• ❗🐌cache_recording: 1.48s -> 1.62s [+8.59%, +10.29%]
•   :rocket:without_cache: 3.1s -> 1.84s [-41.31%, -40.02%]

Further explanation regarding interpretation and methodology can be found in the documentation.

[krlmlr]

I have no idea what's wrong with the macOS tests now.

[krlmlr]

https://github.com/r-lib/styler/actions/runs/4722467440/jobs/8377340497?pr=1112#step:2:6693 :

This is how benchmark results would change (along with a 95% confidence interval in relative change) if 0c4187c is merged into main:

•   :ballot_box_with_check:cache_applying: 204ms -> 205ms [-0.52%, +1.76%]
•   :rocket:cache_recording: 941ms -> 859ms [-9.08%, -8.24%]
•   :rocket:without_cache: 1.95s -> 1.74s [-11.01%, -10.55%]

[krlmlr]

In #1114 now.