Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/50117
D70870978 failed the compat check because it modified a union by removing an element in the middle:
```
'global' | 'self'
```
from
```
'global' | 'application' | 'self'
```
This caused the compat check to complain that index 1 in both unions: `self` didn't match `application` and thus it was a type incompatibility.
We should have been comparing these as an unsorted array of options, which first sorts, then treats differences as added/removed elements instead of incompatbile elements.
If in the example above the removed element was the last one from the union, it would have been fine.
Once these are classified as added/removed, the VersionDiffer is able to check whether that change is allowed in fromNative or toNative.
Changelog: [General][Fixed] Compatibility Check: Allow union changes when the new element is in the middle of the union
Reviewed By: makovkastar
Differential Revision: D71433054
fbshipit-source-id: 20a73f0ba0576daf30cec97bae969b31baf7f468
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/49461
Flow now supports Package Exports 🎉. This means we can delete the compatiblity pattern in each of our build-enabled Node.js packages.
This simplifies the internal package structure needed to support Flow while developing from source in the monorepo — no prod impact.
Changelog: [Internal]
Reviewed By: cipolleschi
Differential Revision: D69741143
fbshipit-source-id: 070715cb6beb00eb393186dbf95856ceb87fabef
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/49340
This tool enables checking the boundary between JavaScript and Native for
backwards incompatible changes to protect against crashes.
This is useful for:
- Local Development
- Over the Air updates on platforms that support it
- Theoretically: Server Components with React Native
Check out the Readme for more information
Changelog: [General][Added] Open Sourcing React Native's Compatibility Check
Reviewed By: panagosg7
Differential Revision: D69476742
fbshipit-source-id: 8af6039839c5475c1258fa82d9750a9320cf0751
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/49311
This tool enables checking the boundary between JavaScript and Native for
backwards incompatible changes to protect against crashes.
This is useful for:
- Local Development
- Over the Air updates on platforms that support it
- Theoretically: Server Components with React Native
Check out the Readme for more information
Changelog: [General][Added] Open Sourcing React Native's Compatibility Check
Reviewed By: yungsters
Differential Revision: D69277991
fbshipit-source-id: 886a983d4b17609ce771cdd93b75f34bbd8417dc
Eli White
Alex Hunt
Fabrizio Cucci
Qian Wu