Summary:
The Flow team is improving the way Flow infers type for primitive literals. This diff prepares the codebase for the new behavior by adding type annotations, or annotations of the form `'abc' as const`.
Changelog: [internal]
Reviewed By: marcoww6
Differential Revision: D75188179
fbshipit-source-id: be50990f23f79cf2d8dae7576af5190218adcafe
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/51488
The Flow team is improving the way Flow infers type for primitive literals.
Announcement: https://fb.workplace.com/groups/flowlang/permalink/1725180268087629/
This diff prepares the codebase for the new behavior by codemoding `as const` annotations.
## Repro steps
1/ Used steps in D73610163 to produce the code changes.
2/ Reverted files where `flow` errored:
```
flow status --show-all-errors > errors.log
node ~/fbsource/fbcode/flow/facebook/error-analyzer.js errors.log |
awk -F':' '{ print $1 }' | sort -u | grep -v 'Total Error Count' |
xargs hg revert --rev .
```
3/ Reverted files that did not improve error count in new Flow mode
```
# Run Flow before change
~/fbsource/fbcode/flow/facebook/flowd status --show-all-errors > errors-0.log
# Run Flow after change
~/fbsource/fbcode/flow/facebook/flowd status --show-all-errors > errors-1.log
# Compute error counts before and after
node ~/fbsource/fbcode/flow/facebook/error-analyzer.js errors-0.log | sort > errors-counts-0.log
node ~/fbsource/fbcode/flow/facebook/error-analyzer.js errors-1.log | sort > errors-counts-1.log
# Revert files with no change in error count
comm -12 errors-counts-0.log errors-counts-1.log | awk -F':' '{ print $1 }' | xargs hg revert --rev .~1
```
## Note to code owners
Due to the large number of errors involved in this rollout, adding `as const` was the most feasible large-scale automated solution. Ideally, a lot of these errors would be fixed by adding other appropriate type annotations. For example instead of annotating
```
type Shape = {type: 'circle', radius: number} | {type: 'square', side: number} | ...;
type ShapeKind = 'circle' | 'square' | 'triangle';
const circle = {
type: "circle" as const, // <-- annotation added here
radius: 42,
};
shape.type as ShapeKind;
takesShape(circle);
```
a more appropriate annotation would be
```
const circle: Circle = { type: "circle"; radius: 42 };
...
```
Changelog: [Internal]
drop-conflicts
Reviewed By: SamChou19815
Differential Revision: D75114154
fbshipit-source-id: 67ee5673816da9625431e2a2466a1e0038386151
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/51397
Changelog: [Internal]
Fix order of ancestor titles.
Due to reverse being applied to the title order it flipped order on even contexts.
Reviewed By: rubennorte
Differential Revision: D74886550
fbshipit-source-id: c556af977f1abee633527151a5896c7d69bd0b48
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/50257
Changelog: [internal]
## Context
We have some tests that make sure certain objects are deallocated/released at the right times, but those are generally hard to get right. The main reason is that WeakRefs semantics are tied to the tasks and microtasks in JS, but we handle them both inside and outside the Event Loop in Fantom tests.
This leads to some surprising behavior where things we expect to have been deallocated weren't because of some innocent looking code.
## Changes
This introduces a safety mechanism in Fantom to enforce that WeakRefs are always dereferenced inside the Event Loop, by patching the method in `WeakRef` and checking if we're in the Event Loop using Fantom APIs.
It also updates the existing test using WeakRefs to fix the new errors thrown by this patch, and to serve as a "good example" on how to use WeakRefs to do memory testing.
Reviewed By: yungsters
Differential Revision: D71815397
fbshipit-source-id: 8faab1898d9112ec365b41867179abb8b251e337
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/49101
Changelog: [internal]
We can move this out of the deprecated directory. Also added a `.npmignore` entry so this won't be published to npm with the package.
Reviewed By: lenaic
Differential Revision: D68896208
fbshipit-source-id: ec85236aeeabdc9abcd870f0f4c1322eeb3cc659
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/49032
Add a native API to validate the RuntimeScheduler has no pending tasks, and automatically validate after every test that there's no pending tasks left to execute.
Changelog: [Internal]
Reviewed By: sammy-SC
Differential Revision: D68797481
fbshipit-source-id: dbbef894a57bd29eb5a033ac8aaeedef770dcba2
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/48369
Changelog: [internal]
This improves logs in Fantom by preserving the original log levels. It's also in preparation for adding support for log streaming in tests.
Reviewed By: javache
Differential Revision: D67600616
fbshipit-source-id: 1c4997d5e836a78327f33092527543fe025c90c6
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/48291
Changelog: [internal]
`react-native-fantom` was added to `.eslintignore` when we upgraded to React 19 because we wanted to reduce the amount of warnings to ease the migration.
This re-enables ESLint for that directory and removes the warnings.
Reviewed By: cipolleschi
Differential Revision: D67283104
fbshipit-source-id: 4ec2363ceaff3cd7bd6e5d70e9588c3dd22d7d85
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/48029
Changelog: [Internal]
Adding snapshot support for rendered output only for now.
This will only work if snapshot is created beforehand by hand.
# Next steps
* Create snapshot when no prior snapshot is available
* Pass and update if instructed
Reviewed By: christophpurrer
Differential Revision: D66601387
fbshipit-source-id: fe528cded43c5ba36d314bd9af8e3fb84b98ac3e
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/48143
Changelog: [internal]
Just a small cleanup to move `jest/integration/*` to `packages/react-native-fantom`, so everything related to Fantom (config, runner, runtime, etc.) is in the same directory.
Reviewed By: javache
Differential Revision: D66874763
fbshipit-source-id: 8b87d7320c7704f7ce6cd58761508193784f5ce2
