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Add YGErrata Enum (#1256)

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Summary:
Pull Request resolved: https://github.com/facebook/yoga/pull/1256

X-link: https://github.com/facebook/react-native/pull/37076

This adds a `YGErrata` bitset enum matching the API and guarantees described in https://github.com/facebook/yoga/issues/1247.

It is hooked up in later diffs. There are a couple of `YGExperimentalFeature` values that belong here, but keeping the current options means that the default `YGErrataNone` corresponds to existing default behavior, letting us stage the series of changes as:
1. Implement errata API
2. Update internal Yoga users we want to de-risk to `YGErrataClassic` or `YGErrataAll` (if setting `UseLegacyStretchBehaviour`)
3. Add new errata, changing Yoga defaults to be conformant, while letting internal apps opt into compatibility modes pending experimentation.

I also added a macro to let C++ users of Yoga perform bitwise operations on the enum without casting (already available for C users).

Reviewed By: rshest

Differential Revision: D45254098

fbshipit-source-id: d4b61271a8018f548f2d9d8c953db4b121a502d1
This commit is contained in:
Nick Gerleman
2023-04-27 03:15:14 -07:00
committed by Facebook GitHub Bot
parent fc68765314
commit 01c0c4ed3b
8 changed files with 166 additions and 0 deletions
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8
yoga/YGEnums.h
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@@ -54,6 +54,14 @@ YG_ENUM_SEQ_DECL(
YGEdgeVertical,
YGEdgeAll)
YG_ENUM_DECL(
YGErrata,
YGErrataNone = 0,
YGErrataStretchFlexBasis = 1,
YGErrataAll = 2147483647,
YGErrataClassic = 2147483646)
YG_DEFINE_ENUM_FLAG_OPERATORS(YGErrata)
YG_ENUM_SEQ_DECL(
YGExperimentalFeature,
YGExperimentalFeatureWebFlexBasis,