feat: run two passes for lightningcss to improve output#164
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marklawlor merged 2 commits intomainfrom Sep 3, 2025
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Pull Request Overview
This PR implements a two-pass approach for lightningcss processing to improve CSS output quality by ensuring proper calc simplification and rem unit conversion.
- Adds a first pass to handle rem-to-px conversion before the main processing
- Updates infinity handling to use JavaScript's safe integer constants instead of hardcoded values
- Fixes target reference issues in style application and selector building
Reviewed Changes
Copilot reviewed 6 out of 14 changed files in this pull request and generated 2 comments.
Show a summary per file
| File | Description |
|---|---|
| src/compiler/compiler.ts | Implements two-pass lightningcss processing with rem conversion in first pass |
| src/compiler/declarations.ts | Updates infinity handling to use safe integer constants and adds rounding to time parsing |
| src/compiler/selector-builder.ts | Moves root and specificity declarations inside the loop to avoid reference issues |
| src/runtime/native/styles/calculate-props.ts | Adds target reference preservation to prevent style application issues |
| src/tests/native/calc.test.tsx | Updates test expectation to match new safe integer infinity handling |
| src/tests/compiler/compiler.test.tsx | Adds test for rem simplification functionality |
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Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
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