fix(transformer/styled-components): remove space before line comment in CSS minification

[overlookmotel]

Previously we'd include an unnecessary space when removing a line comment in cases like:

Input:

styled.div`
  .a // comment
  { color: red; }
`

Previous output post-minification:

styled.div`.a {color:red;}`

After this PR:

styled.div`.a{color:red;}`

We still include excess spaces when removing block comments (e.g. styled.div`.a /* */ {}` -> styled.div`.a {}` ), but that's more complicated to fix, so leaving it for now.

[overlookmotel]

• test(transformer/styled-components): fix test case #13377
• fix(transformer/styled-components): remove trailing whitespace in CSS minification #13376
• refactor(transformer/styled-components): clarify whitespace removal logic in CSS minification #13375
• fix(transformer/styled-components): remove space before line comment in CSS minification #13371 👈 (View in Graphite)
• fix(transformer/styled-components): fix block comment containing expression in CSS minification #13370
• fix(transformer/styled-components): remove repeat whitespace in CSS minification #13369
• main

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[codspeed-hq]

CodSpeed Instrumentation Performance Report

Merging #13371 will not alter performance

_{Comparing 08-28-fix_transformer_styled-components_remove_space_before_line_comment_in_css_minification (df38b2c) with main (8f98841)¹}

Summary

✅ 38 untouched benchmarks

Footnotes

1. No successful run was found on main (a7a06b7) during the generation of this report, so 8f98841 was used instead as the comparison base. There might be some changes unrelated to this pull request in this report. ↩

[graphite-app]

Merge activity

• Aug 29, 3:14 AM UTC: Boshen added this pull request to the Graphite merge queue.
• Aug 29, 3:22 AM UTC: Merged by the Graphite merge queue.