Fix auto-sized parent not accounting for child min-width in canSkipFlex path#1905
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joshjhargreaves wants to merge 2 commits intofacebook:mainfrom
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Fix auto-sized parent not accounting for child min-width in canSkipFlex path#1905joshjhargreaves wants to merge 2 commits intofacebook:mainfrom
joshjhargreaves wants to merge 2 commits intofacebook:mainfrom
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@joshjhargreaves could you run |
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@NickGerleman I ran the script & there are no files to check in - this modifies an existing test file & doesn't create a new one, fwiw. |
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@NickGerleman has imported this pull request. If you are a Meta employee, you can view this in D95177338. |
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Mar 20, 2026
…ex path Summary: When a flex container with auto main-axis is measured with a with a known cross dimensions, the `canSkipFlex` optimization in `justifyMainAxis` uses `computedFlexBasis` directly. This doesn't account for the `min` & `max` width constraints, causing the parent to undersize. I have added a `.html` test page here to mirror the C++ test I added to confirm that flexbox does respect the min-width constraint. [minwidth-test.html](https://github.com/user-attachments/files/25695677/minwidth-test.html) Changelog: [internal] X-link: facebook/yoga#1905 Reviewed By: sammy-SC, adityasharat Differential Revision: D95177338 Pulled By: NickGerleman
NickGerleman
pushed a commit
to NickGerleman/react-native
that referenced
this pull request
Mar 20, 2026
…ex path Summary: When a flex container with auto main-axis is measured with a with a known cross dimensions, the `canSkipFlex` optimization in `justifyMainAxis` uses `computedFlexBasis` directly. This doesn't account for the `min` & `max` width constraints, causing the parent to undersize. I have added a `.html` test page here to mirror the C++ test I added to confirm that flexbox does respect the min-width constraint. [minwidth-test.html](https://github.com/user-attachments/files/25695677/minwidth-test.html) Changelog: [Internal] X-link: facebook/yoga#1905 Reviewed By: sammy-SC, adityasharat Differential Revision: D95177338 Pulled By: NickGerleman
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When a flex container with auto main-axis is measured with a with a known cross dimensions, the
canSkipFlexoptimization injustifyMainAxisusescomputedFlexBasisdirectly. This doesn't account for themin&maxwidth constraints, causing the parent to undersize.I have added a
.htmltest page here to mirror the C++ test I added to confirm that flexbox does respect the min-width constraint. minwidth-test.html