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LibWeb: Handle inaccuracies resolving transformation matrix type

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Doing trigonometric calculations with floating point numbers can
introduce small inaccuracies. This meant that we would sometimes
incorrectly generate a 3d rather than 2d matrix for the resolved value
of `transform`.

Gains us 3 WPT tests.
This commit is contained in:
Callum Law
2025-10-22 15:39:40 +13:00
committed by Sam Atkins
parent 2d331b9176
commit 1977a976da
Notes: github-actions[bot] 2025-10-23 08:35:56 +00:00 
Author: https://github.com/Calme1709
Commit: https://github.com/LadybirdBrowser/ladybird/commit/1977a976da2
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/6544
Reviewed-by: https://github.com/AtkinsSJ ✅
3 changed files with 200 additions and 10 deletions
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32
Tests/LibWeb/Text/expected/wpt-import/css/css-values/calc-angle-values.txt Normal file
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Harness status: OK
Found 27 tests
27 Pass
Pass addition of 2 angle units: deg plus deg
Pass addition of 2 angle units: deg plus rad
Pass addition of 2 angle units: deg plus grad
Pass addition of 2 angle units: deg plus turn
Pass addition of 2 angle units: rad plus rad
Pass addition of 2 angle units: rad plus grad
Pass addition of 2 angle units: rad plus turn
Pass addition of 2 angle units: grad plus grad
Pass addition of 2 angle units: grad plus turn
Pass subtraction of angle unit: deg minus deg
Pass subtraction of angle unit: deg minus rad
Pass subtraction of angle unit: deg minus grad
Pass subtraction of angle unit: deg minus turn
Pass subtraction of angle unit: rad minus rad
Pass subtraction of angle unit: rad minus grad
Pass subtraction of angle unit: rad minus turn
Pass subtraction of angle unit: grad minus grad
Pass subtraction of angle unit: grad minus turn
Pass multiplication of angle unit: deg multiplied by int
Pass multiplication of angle unit: int multiplied by rad
Pass multiplication of angle unit: grad multiplied by int
Pass multiplication of angle unit: int multiplied by turn
Pass division of angle unit: deg divided by int
Pass division of angle unit: rad divided by int
Pass division of angle unit: grad divided by int
Pass division of angle unit: turn divided by int
Pass conversion of angle unit: grad into deg