Commit Graph
1177 Commits
Author SHA1 Message Date
Rob Hogan dcbd8608a6 Update package.json references to GitHub org "facebook" -> "react" (#57258)
Summary:
Pull Request resolved: https://github.com/react/react-native/pull/57258

Reflecting the move to https://github.com/react/react-native , update references in first-party `package.json`s

The `repository.url` field in particular is load-bearing for Trusted Publish.

Changelog: [Internal]

___

Reviewed By: fabriziocucci

Differential Revision: D108986410

fbshipit-source-id: 78513ffefc32ddf417dc1479a4834ebc44240080
2026-06-18 02:00:52 -07:00
Sam Zhou e0ed406590 Redo modern syntax rollout in react-native (#57034)
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/57034

With D107165685, it should work this time.

Changelog: [Internal]

Reviewed By: gkz

Differential Revision: D107111468

fbshipit-source-id: 326b2911088d7c87c3564a578125eeaab9d0b8cc
2026-06-03 07:21:54 -07:00
Rubén Norte 833144fcec Revert recent Flow syntax codemods in react-native-github (#56998)
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/56998

Reverts the recent Flow syntax codemods applied across `packages/`, `private/`, and `scripts/` in react-native-github. Specifically restores the previous form for:

- `+T` / `+Instance` style variance annotations on generic type parameters that had been converted to the newer `out T` / `in T` keyword form.
- `+field:` covariant object/interface properties that had been converted to the `readonly field:` modifier form.
- `+[K in keyof T]:` mapped-type covariance that had been converted to `readonly [K in keyof T]:`.

These are purely Flow type-annotation changes with no runtime behavior impact, restoring the form that the rest of the toolchain (in particular Fantom) already supports.

Changelog: [Internal]

Reviewed By: christophpurrer

Differential Revision: D106813102

fbshipit-source-id: 6bf915d530e130eba9c9d96a2b6c3dc8853594d1
2026-05-29 14:09:58 -07:00
Marco Wang 707e366585 Fix variance in react-native-github/packages/react-native-codegen/e2e/deep_imports/__test_fixtures__/modules/ (#56992)
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/56992

tsia

Changelog: [Internal]

landed-with-radar-review

Reviewed By: SamChou19815

Differential Revision: D106707074

fbshipit-source-id: 0db19484d36a988b4382b37e43c5a43a49f028ec
2026-05-28 20:34:54 -07:00
Marco Wang 09fc0432d1 Fix a few readonly 10/n (#56948)
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/56948

```
js1 flow-runner codemod flow/transformAllVariance --variance readonly --format-files=false
```

drop-conflicts

landed-with-radar-review

Reviewed By: SamChou19815

Differential Revision: D106144499

fbshipit-source-id: 85493334eae630d3dec7e5920633c076f8f09729
2026-05-22 22:27:46 -07:00
Marco Wang 9f558a4d6a codemod in/out (#56930)
Summary:
X-link: https://github.com/facebook/metro/pull/1716

Pull Request resolved: https://github.com/facebook/react-native/pull/56930

X-link: https://github.com/facebook/relay/pull/5290

```
pastry P2346790458 | sed 's|^|xplat/js/|' | js1 flow-runner codemod flow/transformAllVariance --variance in,out --format-files=false @
```

Reviewed By: SamChou19815

Differential Revision: D106021144

fbshipit-source-id: 2b791018e7f032b8aaddbc389cefa3101e69a2a0
2026-05-21 20:08:27 -07:00
Kamil Paradowski 226ef2e7c5 ArrayBuffer support to C++ TurboModules (#56729)
Summary:
Adds `ArrayBuffer` support to C++ TurboModules. This includes:

- Codegen support for `ArrayBufferTypeAnnotation` in module specs
- `AsyncArrayBuffer` — a move-only bridging type for holding ArrayBuffer data off the JS thread
- `Bridging<AsyncArrayBuffer>::toJs` for resolving promises with native-backed or owned-bytes buffers

iOS and Android support will follow in separate PRs. The new codegen type is currently restricted to C++ TurboModules via `excludedPlatforms: ['iOS', 'android']`.

## Changelog:

[GENERAL] [ADDED] - Add `ArrayBuffer` support to C++ TurboModules

Pull Request resolved: https://github.com/facebook/react-native/pull/56729

Test Plan:
- JS parser/generators tests added.
 - New bridging unit tests in `BridgingTest.cpp` cover `AsyncArrayBuffer` construction and JS bridging.
 - `rn-tester`: `getArrayBuffer`, `processAsyncBuffer`, and `getAsyncBuffer` methods added to `NativeCxxModuleExample` in demo app.

```
[chpurrer@54913.od /data/sandcastle/boxes/fbsource (a00a9a84e7)]$ buck test //xplat/js/react-native-github/packages/react-native/ReactCommon/react/bridging:tests
↷ Skip: fbsource//xplat/js/react-native-github/packages/react-native/ReactCommon/react/bridging:tests - BridgingTest.asyncArrayBufferBorrowNativeBackedTest (0.0s)
Note: Google Test filter = BridgingTest.asyncArrayBufferBorrowNativeBackedTest
[==========] Running 1 test from 1 test suite.
[----------] Global test environment set-up.
[----------] 1 test from BridgingTest
[ RUN      ] BridgingTest.asyncArrayBufferBorrowNativeBackedTest
xplat/js/react-native-github/packages/react-native/ReactCommon/react/bridging/tests/BridgingTest.cpp:865: Skipped
Runtime does not expose tryGetMutableBuffer; borrow always throws

[  SKIPPED ] BridgingTest.asyncArrayBufferBorrowNativeBackedTest (7 ms)
[----------] 1 test from BridgingTest (7 ms total)

[----------] Global test environment tear-down
[==========] 1 test from 1 test suite ran. (7 ms total)
[  PASSED  ] 0 tests.
[  SKIPPED ] 1 test, listed below:
[  SKIPPED ] BridgingTest.asyncArrayBufferBorrowNativeBackedTest

Buck UI: https://www.internalfb.com/buck2/4a7fa180-4ce6-4dcf-b685-45d183bd4091
Test UI: https://www.internalfb.com/intern/testinfra/testrun/30680772470375729
Network: Up: 0B  Down: 0B  (reSessionID-9a7e839f-b20c-4d94-944f-8d1720e694f8)
Command: test.
Time elapsed: 3.0s
Buck UI: https://www.internalfb.com/buck2/4a7fa180-4ce6-4dcf-b685-45d183bd4091
Tests finished: Pass 31. Fail 0. Timeout 0. Fatal 0. Skip 1. Omit 0. Infra Failure 0. Build failure 0
[chpurrer@54913.od /data/sandcastle/boxes/fbsource (a00a9a84e7)]$
```

## RNTester-ios
```
buck install -r rntester-ios
```
 https://pxl.cl/9TgTf

Reviewed By: javache

Differential Revision: D105629442

Pulled By: christophpurrer

fbshipit-source-id: 91f6e3d16f69ba792469e02d6e539794e70b7101
2026-05-21 10:29:49 -07:00
Alex Hunt a0d39e7a9c Bump minimum Node.js version to 22 (#56887)
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/56887

Drop support for Node.js 20. The minimum supported version is now `^22.13.0 || ^24.3.0 || >= 26.0.0`.

Node.js 20 reached end-of-life in April 2026 and is no longer actively maintained. This aligns React Native with the upcoming Metro requirement.

Changelog:
[General][Breaking] - Require Node.js >= 22.13.0

Reviewed By: christophpurrer, cortinico

Differential Revision: D105685641

fbshipit-source-id: f490e5a13e4289daba98c4d56dd8fdd341aef0db
2026-05-19 11:53:54 -07:00
Ivor Zhou ef38dbb28d Update hermes-parser and related packages in fbsource to 0.36.1 (#56806)
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/56806

Pull Request: https://github.com/facebook/react-native/pull/56806

Bump hermes-parser and related packages to 0.36.1.

Changelog: [internal]

Reviewed By: SamChou19815

Differential Revision: D104122338

fbshipit-source-id: 7e938ec114355cf517ff2e76ffbb941f6352d213
2026-05-14 22:13:53 -07:00
Rob Hogan 783f45746e Bump packages to 0.87.0-main following 0.86 cut (#56716)
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/56716

Now that we've cut 0.86, bump all versions on `main` ready for the 0.87 cut.

Changelog: [Internal]

Reviewed By: cortinico, fabriziocucci

Differential Revision: D104219534

fbshipit-source-id: 86f2ebe5b44f67608a7a9495bf9840f2cdd52e5b
2026-05-07 07:23:06 -07:00
Marco Wang 0b3df3f382 Update hermes-parser and related packages in fbsource to 0.36.0 (#56662)
Summary:
X-link: https://github.com/facebook/hermes/pull/2003

X-link: https://github.com/facebook/relay/pull/5265

Pull Request resolved: https://github.com/facebook/react-native/pull/56662

X-link: https://github.com/facebook/flow/pull/9405

Bump hermes-parser and related packages to [0.36.0](https://github.com/facebook/hermes/blob/static_h/tools/hermes-parser/js/CHANGELOG.md).

Changelog: [internal]

Reviewed By: SamChou19815

Differential Revision: D103172778

fbshipit-source-id: 81bb5f18da6f46d07955956fb0b721f74cceca47
2026-04-30 15:26:55 -07:00
Christoph Purrer c53336909f Remove invalid float enum example from RN Codegen (#56489)
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/56489

C++ enums cannot have float values - they must be int or long. This removes the invalid FloatEnum example (with values 0.0, 0.1, 0.2) from the react-native-codegen test fixtures and the corresponding enumFloat parameter reference. All affected test snapshots have been regenerated.

Changelog: [Internal]

Reviewed By: shwanton

Differential Revision: D101433764

fbshipit-source-id: eff21d3fa9c48ab11dfb8ef861ac0b8122ff5602
2026-04-20 13:33:09 -07:00
Alexander Kawrykow 56129fedcb Respect enum values for TurboModule c++ codegen (#56478)
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/56478

Changelog: [General] [Fixed] - Respect enum values for TurboModule c++ codegen

Defining an enum like this:

```js
export enum CustomPropertyEditor {
  BitMask = 0,
  Entity = 1,
  Slider = 2,
  AudioEvent = 3,
  CollisionLayer = 4,
  MaterialComponentDeprecatedProperty = 5,
  MeshMaterialList = 6,
  Submesh = 7,
  // CoreUiLayout (8) removed — rendered identically to ClassOrList
  MaterialMapJson = 9,
  AnimationTable = 10,
  SkeletonAsset = 11,
  NavMeshAreaType = 12,
  VFXAsset = 13,
  Table = 14,
  VariableTable = 15,
  AudioBus = 16,
  LodSettings = 17,
  WorldSearch = 18,
  EntityMaterialList = 19,
  NpcId = 20,
  LightingModelVersion = 21,
  PlatformSelector = 22,
  ComponentReference = 23,
}
```
(notice number 8 ), will cause the generated enum to actually look like:
```
  enum class NativeEditableObjectModuleCustomPropertyEditor {
    BitMask, Entity, Slider, AudioEvent, CollisionLayer,
    MaterialComponentDeprecatedProperty, MeshMaterialList, Submesh,
    MaterialMapJson, AnimationTable, ...
  };
```

in other words, the values don't match up after the core ui value. This is quite dangerous and I'm surprised no one has ever noticed that

This diff fixes things such that if an integer value is explicitly assigned, the value is preserved in the generated enum.

Reviewed By: christophpurrer

Differential Revision: D101229471

fbshipit-source-id: 366ea2d16ac74e112f1b68c5ad3d0877dedb918c
2026-04-17 14:59:10 -07:00
Marco Wang 50768cbb15 Update hermes-parser and related packages in fbsource to 0.35.0 (#56408)
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/56408

X-link: https://github.com/facebook/relay/pull/5238

X-link: https://github.com/facebook/hermes/pull/1978

X-link: https://github.com/facebook/flow/pull/9396

Bump hermes-parser and related packages to [0.35.0](https://github.com/facebook/hermes/blob/static_h/tools/hermes-parser/js/CHANGELOG.md).

Changelog: [internal]

Reviewed By: bherila

Differential Revision: D100198457

fbshipit-source-id: 06dcada56d61ae359c1d7a8362f80fdfb4e2d5b5
2026-04-09 22:17:51 -07:00
Sam Zhou 82bffce573 Cleanup legacy flow types in react-native (#56300)
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/56300

Changelog: [Internal]

Reviewed By: marcoww6

Differential Revision: D99004126

fbshipit-source-id: dfedc13c867cb768777e2ba65256a2c40ffb1d08
2026-03-31 19:25:25 -07:00
Sam Zhou d0a1efbec3 Change all remaining flow legacy casting syntax to modern one (#56259)
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/56259

Change all remaining flow legacy casting syntax to modern one.

Changelog: [Internal]

Reviewed By: panagosg7

Differential Revision: D98565441

fbshipit-source-id: 39b64397689d1ce05647d6a029b7c903fff1a1f6
2026-03-27 17:58:15 -07:00
Sam Zhou 9db1d137e4 Update to use modern casting syntax in codegen fixtures (#56258)
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/56258

According to my understanding, the codegen already outputs the modern casting syntax. Only these fixtures are stuck on the old syntax. This diff fixes them all.

Changelog: [Internal]

Reviewed By: gkz

Differential Revision: D98537137

fbshipit-source-id: 0d4a19e8eeece771881ed793ec994da25297de50
2026-03-27 14:31:25 -07:00
Christoph Purrer 65aee6cd77 Add centralized ReservedPrimitiveTypes registry and shared toSafeIdentifier helper (#56049)
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/56049

Reduce duplication and inconsistency across codegen generators by centralizing reserved primitive type mappings into a single `ReservedPrimitiveTypes.js` registry, making future type support and fixes a single-source change and lowering bug risk.

Additionally, standardize identifier capitalization via a shared `toSafeIdentifier` helper in `Utils.js` to prevent divergent string handling across C++/Java helpers.

Also removes dead TODO comments and obsolete commented-out code from `RNCodegen.js`, `GenerateModuleH.js`, and parser files.

Changelog: [Internal]

Reviewed By: alanleedev

Differential Revision: D95711348

fbshipit-source-id: 3f541f91f8dcc21e8e8b75cf2f0e402807d18f8a
2026-03-20 19:42:06 -07:00
Christoph Purrer e102592064 Deduplicate toObjCType function in struct serializers (#56050)
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/56050

Removes ~75 lines of duplicated `toObjCType` logic between `serializeConstantsStruct.js` and `serializeRegularStruct.js` by extracting it into a new shared module `serializeStructUtils.js`. The two implementations were identical except for array wrapper types (`std::vector` vs `facebook::react::LazyVector`) and type alias suffixes (`::Builder` vs none), which are now handled via a `structContext` parameter that distinguishes between `CONSTANTS` and `REGULAR` contexts.

Changelog: [internal]

Reviewed By: philIip

Differential Revision: D95908134

fbshipit-source-id: c511958c40bf62fd970036f40f6575d8150c32df
2026-03-17 10:36:33 -07:00
George Zahariev cd0dbf5bc5 Update hermes-parser and related packages in xplat to 0.34.0 (#56107)
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/56107

Bump hermes-parser and related packages to [0.34.0](https://github.com/facebook/hermes/blob/static_h/tools/hermes-parser/js/CHANGELOG.md).

Changelog: [internal]

Reviewed By: SamChou19815

Differential Revision: D96556729

fbshipit-source-id: fd6568de0efa43851c45584bba5a2c4ef49bfabe
2026-03-16 12:41:13 -07:00
Christoph Purrer 321afe690a Support ReadOnly/Readonly wrapped custom structs in C++ TurboModule codegen (#56051)
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/56051

When parsing custom struct types in RN TurboModule flow specs for C++ (cxxOnly) codegen, the `getObjectTypeAnnotations` function in `parsers-commons.js` silently dropped types wrapped in `$ReadOnly<{...}>` or `Readonly<{...}>`.

The root cause: `parser.nextNodeForTypeAlias(value)` returns the raw right-hand side of a type alias. For `export type Foo = Readonly<{...}>`, this returns a `GenericTypeAnnotation` node (the `Readonly<...>` wrapper), not an `ObjectTypeAnnotation`. The existing guard check (`parent.type !== 'ObjectTypeAnnotation'`) then rejects the type, causing it to be silently skipped from the alias map.

The fix unwraps `$ReadOnly`/`Readonly` `GenericTypeAnnotation` wrappers (Flow) and `Readonly` `TSTypeReference` wrappers (TypeScript) before performing the type check, then obtains properties directly from the unwrapped node.

Also updates `NativeCxxModuleExample.js` to use `Readonly<{...}>` on `ConstantsStruct` as a demonstration and build-time validation of the fix.

Changelog: [Internal]

Reviewed By: vzaidman

Differential Revision: D96044884

fbshipit-source-id: 811ecb878ce573a2250b9e8ac54345bac42c7e07
2026-03-12 14:33:59 -07:00
Marco Wang 4f0bd0ee93 Codemod : to extends to a few react-native-github package (#56025)
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/56025

Flow is migrating from colon style type parameter bound to `extends`

Changelog:[internal]

Reviewed By: SamChou19815

Differential Revision: D95867062

fbshipit-source-id: 201483bcbae9b628c8fbd9ffda70d8adfa3a2dc6
2026-03-10 18:03:55 -07:00
Marco Wang b8876b56b9 switch to hermes for react-native-codegen (#56024)
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/56024

Switch js/react-native-github/packages/react-native-codegen/package.json to use hermes instead of babel

Changelog: [internal]

Reviewed By: SamChou19815

Differential Revision: D95878474

fbshipit-source-id: 566e054abedc7062c34e1ea68f592071c2a83c6b
2026-03-10 13:53:04 -07:00
Alan Lee bbaabe6a16 Bump packages for next release (#55946)
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/55946

Follows the recent `0.85-stable` branch cut.

Changelog: [Internal] - Bump all packages to `0.86.0-main`

Reviewed By: cortinico

Differential Revision: D95410323

fbshipit-source-id: dacfee00f1111dbf57ef2e608963a4bffa669884
2026-03-10 00:35:59 -07:00
hobostay 41b009f989 Fix typos: "boostrap" -> "bootstrap" and "informations" -> "information" (#55849)
Summary:
This PR fixes simple typos found in error messages:

- **apple.js**: Fixed "boostrap" -> "bootstrap" in error messages (lines 67, 169)
- **CppHelpers.js**: Fixed "informations" -> "information" in error messages (lines 75, 87, 101)

Note: "information" is an uncountable noun in English and should not be pluralized.

Changelog:
[Internal] [Changed] -

Pull Request resolved: https://github.com/facebook/react-native/pull/55849

Test Plan: These are typo fixes in error message strings. No code behavior changes.

Reviewed By: cipolleschi

Differential Revision: D94905006

Pulled By: cortinico

fbshipit-source-id: a6a7185cf3aeb8739212a06115100ede097b0b4c
2026-03-03 16:45:12 -08:00
Nick Gerleman 0ce27908b7 Update GenerateViewConfigJs for native CSS parsing (#55676)
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/55676

Change `GenerateViewConfigJs.js` to emit `require('.../ReactNativeStyleAttributes').colorAttribute` for `ColorPrimitive` props instead of the inline `{process: require('.../processColor').default}`. This ensures generated ViewConfigs use the same gated attribute as handwritten ones.

Changelog: [Internal]

Reviewed By: lenaic

Differential Revision: D94052698

fbshipit-source-id: aa4821364062807b0ae862379d236a2f458c9c53
2026-02-25 08:14:29 -08:00
Bartosz Szar ac1aa7588a chore: fix typos in test descriptions and code comments (#55651)
Summary:
I was upgrading bare react native project to expo sdk 54 and stumbled upon
```
"TurboModule system assumes returnType == void iff the method is synchronous."
```
error from `turbomodule/core/TurboModuleInteropUtils.kt`

I thought that `iff` with double `f` was a typo and wanted to submit a pr with fix - I learned that it means `if and only if` - decided to scan the repo for any other typos anywany - submitting the ones that I've found.

## Changelog:
[Internal]
<!-- Help reviewers and the release process by writing your own changelog entry.

Pick one each for the category and type tags:

[ANDROID|GENERAL|IOS|INTERNAL] [BREAKING|ADDED|CHANGED|DEPRECATED|REMOVED|FIXED|SECURITY] - Message

Pull Request resolved: https://github.com/facebook/react-native/pull/55651

Reviewed By: cipolleschi

Differential Revision: D93876470

Pulled By: cortinico

fbshipit-source-id: 43fc905bda14e77b27cdeda568bde1e2299d9d0f
2026-02-23 13:35:53 -08:00
Rob Hogan a08b2d2226 Bump some babel deps (code-frame,generator,parser,template,traverse,types) to latest minors (#55543)
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/55543

@public

This diff updates several Babel packages to their latest versions:
- `babel/code-frame`: 7.29.0
- `babel/generator`: 7.29.1
- `babel/parser`: 7.29.0
- `babel/template`: 7.28.6
- `babel/traverse`: 7.29.0
- `babel/types`: 7.29.0

Not bumping `core` or `runtime` here because they're a bit more involved, and I'm mainly interested in `traverse`. The packages here are the closure of traverse's dependency graph.

Changelog: [Internal]

Reviewed By: yungsters

Differential Revision: D92983519

fbshipit-source-id: 9f2e71fb5d453606c697d52539f0056b7a29bc45
2026-02-13 07:11:13 -08:00
Ramanpreet Nara a748a405b6 Sanitize module name to prevent Java code injection (#55484)
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/55484

This change adds content validation to ensure module names only contain safe identifier characters (alphanumeric and underscores, matching `^[a-zA-Z_][a-zA-Z0-9_]*$`). A new error class `IncorrectModuleRegistryCallArgumentValueParserError` provides a clear error message when an unsafe module name is detected.

Changelog: [Android][Fixed] - Validate module names in codegen

Reviewed By: CalixTang

Differential Revision: D92736956

fbshipit-source-id: 29b2c603bf97f9a2c30c8350d29b468d315765f0
2026-02-10 07:23:22 -08:00
Marco Wang 3f56ac08ba Fix react-native-github/packages/react-native-codegen/e2e/deep_imports/__test_fixtures__
Summary:
codemoded.

Changelog: [internal]

Reviewed By: SamChou19815

Differential Revision: D90895159

fbshipit-source-id: 6753b0552f5543870ffd8bfae8ee1332e506f55f
2026-01-16 16:48:52 -08:00
Marco Wang 0d64cf2e98 Fix react-native-github/packages/react-native-codegen/e2e/namespaced/__test_fixtures__/
Summary:
codemoded

Changelog: [Internal]

Reviewed By: SamChou19815

Differential Revision: D90895199

fbshipit-source-id: b3c06e081b5c94ceed1a0de66c334d0ba4132119
2026-01-16 16:36:50 -08:00
Alex Hunt f1bedfb92b Bump packages for next release (#55172)
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/55172

Follows the recent `0.84-stable` branch cut.

Changelog: [Internal] - Bump all packages to `0.85.0-main`

Reviewed By: vzaidman

Differential Revision: D90698490

fbshipit-source-id: b81b840bfd66e631f160a11c4c64baa6850e3393
2026-01-14 12:17:16 -08:00
Rob Hogan c9c601d61a Node.js: Drop support for Node.js versions released before 20.19.4, and EOL v21,v23 (#55114)
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/55114

Our official [docs](https://reactnative.dev/docs/set-up-your-environment#node--watchman) require:

> Node 20.19.4 or newer

Currently, our `package.json#engines` fields express this as `"node": ">= 20.19.4"`

This is a bit imprecise because of Node's overlapping release lines - e.g. v24.0.0 is actually older than v20.19.4 (2025-07-15), and the whole v21 line was already EOL before v20.19.4.

The release *date* is relevant because Node.js frequently backports the most important updates - notably, `require(esm)` is already stable in Node 20.19 but is not unflagged in v22 until v22.12.

This makes the `package.json#engines` requirement truer to the documented requirement, dropping some old minors and EOL majors that prevent us using features included in v20.19.

Notably, `require(esm)` is stable and unflagged on all versions supported from this diff.

 - v21 and v23 are EOL, so are dropped.
 - v22.13 pre-dates 20.19.4 and is the first to have unflagged silent `require(esm)`
 - v24.3.0 pre-dates 20.19.4 and is the first to unflag TS-stripping
 - Support v25 and newer.

Changelog:
[General][Breaking] Drop support for EOL Node.js lines and old minors.

Reviewed By: cortinico, huntie

Differential Revision: D90467358

fbshipit-source-id: a5fdfb1b93a9d6cffe78eb6811ff7420ab906f44
2026-01-14 10:49:05 -08:00
Marco Wang 92c32780f1 Transform $ReadOnlyArray to ReadonlyArray 18/n (#55152)
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/55152

We are transforming the following utility types to be more consistent with typescript and better AI integration:

* `$NonMaybeType` -> `NonNullable`
* `$ReadOnly` -> `Readonly`
* `$ReadOnlyArray` -> `ReadonlyArray`
* `$ReadOnlyMap` -> `ReadonlyMap`
* `$ReadOnlySet` -> `ReadonlySet`
* `$Keys` -> `keyof`
* `$Values` -> `Values`
* `mixed` -> `unknown`

See details in https://fb.workplace.com/groups/flowlang/permalink/1837907750148213/.

drop-conflicts

Command:

`js1 flow-runner codemod flow/transformUtilityType --legacy-type='$ReadOnlyArray'`

Reviewed By: SamChou19815

Differential Revision: D90424826

fbshipit-source-id: 207e1abebb50671e8eb2a7f79ecfeaf4569b5b3e
2026-01-13 21:59:05 -08:00
Marco Wang 7051a07c63 Transform $ReadOnlyArray to ReadonlyArray 17/n (#55109)
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/55109

We are transforming the following utility types to be more consistent with typescript and better AI integration:

* `$NonMaybeType` -> `NonNullable`
* `$ReadOnly` -> `Readonly`
* `$ReadOnlyArray` -> `ReadonlyArray`
* `$ReadOnlyMap` -> `ReadonlyMap`
* `$ReadOnlySet` -> `ReadonlySet`
* `$Keys` -> `keyof`
* `$Values` -> `Values`
* `mixed` -> `unknown`

See details in https://fb.workplace.com/groups/flowlang/permalink/1837907750148213/.

drop-conflicts

Command:

`js1 flow-runner codemod flow/transformUtilityType --legacy-type='$ReadOnlyArray'`

Reviewed By: SamChou19815

Differential Revision: D90402950

fbshipit-source-id: d338ad7997728d40457b1199c3bd5dcd245a39c3
2026-01-13 20:33:09 -08:00
George Zahariev 393eca54eb Update hermes-parser and related packages in fbsource to 0.33.3 (#55092)
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/55092

Bump hermes-parser and related packages to [0.33.3](https://github.com/facebook/hermes/blob/static_h/tools/hermes-parser/js/CHANGELOG.md).

Changelog: [internal]

Reviewed By: javache

Differential Revision: D90293157

fbshipit-source-id: 6982d4275aa5ea1305491627051f100237f6f1b4
2026-01-12 23:52:57 -08:00
Rob Hogan 0cda10b00a Revert: Bump minimum Node.js version to v22.11 (prev LTS) (#55113)
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/55113

Reverts https://github.com/facebook/react-native/pull/55038

Dropping v20 (still in LTS) causes friction with Expo's LTS policy, so we're restoring support for v20.19.

Changelog: [General][Added] Revert https://github.com/facebook/react-native/pull/55038

Reviewed By: shwanton

Differential Revision: D90467161

fbshipit-source-id: d876cf7869f11e04058f88239f553704e0706514
2026-01-11 14:30:40 -08:00
George Zahariev 0d27aedb73 Future proof for unknown type annotation node (#55069)
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/55069

In the future this will parse as `UnknownTypeAnnotation` - future proof.

Changelog: [Internal]

Reviewed By: marcoww6

Differential Revision: D90226759

fbshipit-source-id: 2f9d819f6536366f670100166d0091686ac782f6
2026-01-07 12:02:02 -08:00
Marco Wang 41efc3b588 Transform $ReadOnly to Readonly 38/n (#55067)
Summary: Pull Request resolved: https://github.com/facebook/react-native/pull/55067

Differential Revision: D90146229

fbshipit-source-id: 62733ba51fd0c318140b7a76b499b1a7ac1f7853
2026-01-06 20:23:03 -08:00
Rob Hogan 8f10b339d4 Breaking: Bump minimum Node.js version to v22.11 (prev LTS) (#55038)
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/55038

Bump the minimum to Node.js v22.11, which is the previous LTS now that v24 is in LTS. Drop support for Node v20.

https://nodejs.org/en/blog/release/v22.11.0
https://nodejs.org/en/about/previous-releases

Changelog: [General][Breaking] Bump minimum Node.js version to v22.11

Reviewed By: cortinico, huntie

Differential Revision: D90109056

fbshipit-source-id: 178f29d3131f21fccf956decc9ac94365a2bfe53
2026-01-05 06:21:25 -08:00
Alan Lee 391fc3c04e Add default case to EventEmitterH generator switch statement (#54950)
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/54950

Adds a default case to the switch statement in GenerateEventEmitterH.js to fix
compiler warnings about unhandled enum values in upcoming diff

```
[info] buck-out/v2/gen/fbsource/xplat/js/react-native-github/__generate_event_emitter_h-FBReactNativeSpec__/6c08ec662a69b177/out/EventEmitters.h:178:5: error: 'switch' missing 'default' label [-Werror,-Wswitch-default]
[info]   178 |     switch (value) {
[info]       |     ^
[info] 1 error generated.
[info] [2025-12-17T13:42:51.990-08:00]
[info] [2025-12-17T13:42:51.990-08:00] Action sub-errors produced by error handlers:
[info] - [apple_cxx_error][switch_default] buck-out/v2/gen/fbsource/xplat/js/react-native-github/__generate_event_emitter_h-FBReactNativeSpec__/6c08ec662a69b177/out/EventEmitters.h:178:5 'switch' missing 'default' label [-Wswitch-default]
[info]   Hint: https://fburl.com/apple_build_errors/missing_switch_default_label
[info]
[info] BUILD FAILED
```

Changelog: [Internal]

Reviewed By: cipolleschi, christophpurrer

Differential Revision: D89513261

fbshipit-source-id: c584cd60b6c735f437138db0041d3e0de0015c60
2025-12-23 11:09:52 -08:00
Marco Wang 894a1f16ef Transform mixed to unknown in xplat/js (#54954)
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/54954

We are transforming the following utility types to be more consistent with typescript and better AI integration:

* `$NonMaybeType` -> `NonNullable`
* `$ReadOnly` -> `Readonly`
* `$ReadOnlyArray` -> `ReadonlyArray`
* `$ReadOnlyMap` -> `ReadonlyMap`
* `$ReadOnlySet` -> `ReadonlySet`
* `$Keys` -> `keyof`
* `$Values` -> `Values`
* `mixed` -> `unknown`

See details in https://fb.workplace.com/groups/flowlang/permalink/1837907750148213/.
drop-conflicts

Reviewed By: SamChou19815

Differential Revision: D89581744

fbshipit-source-id: 58a6c246629bbe4fb5c0af447dc002c48e10c342
2025-12-22 12:25:44 -08:00
Marco Wang 68b0c2a69c Fix the build for unknown annotation (#54941)
Summary:
Changelog: [Internal] support flow 'unknown' syntax

Pull Request resolved: https://github.com/facebook/react-native/pull/54941

`buck build --flagfile fbcode//mode/opt fbcode//cathode/modules/react/lib/tests:app_delegate_test` crashed with

```javascript
Buck build failed for this target, and is likely caused by your changes.
Error message:
[New Failure] Target failed to build.
Action failed: fbsource//xplat/js/RKJSModules/Libraries/CathodeMessaging:FBReactNativeCathodeMessagingSpec-flow-types-ota-safety (cfg:opt-linux-x86_64-fbcode-platform010-clang19-no-san#3224936a2623a72b) (genrule)
Remote command returned non-zero exit code 1
Remote action, reproduce with: `frecli cas download-action 0c073e461a3ae239aa7e24c8a99b39543d365414405d1be1caa2196d7f55a18e:148`
Stdout: <empty>
Stderr:
UnsupportedGenericParserError: Module NativeCathodeMessagingModuleCxx: Unrecognized generic type 'unknown' in NativeModule spec.
    at translateTypeAnnotation (/re_cwd/buck-out/v2/gen/fbsource/xplat/js/tools/flow-schema/__flow-schema__bin_build__/0a63598ffadb2c1e/out/flow-schema__bin_build.zip/node_modules/react-native/codegen/src/parsers/flow/modules/index.js:154:23)
    at /re_cwd/buck-out/v2/gen/fbsource/xplat/js/tools/flow-schema/__flow-schema__bin_build__/0a63598ffadb2c1e/out/flow-schema__bin_build.zip/node_modules/react-native/codegen/src/parsers/parsers-commons.js:343:7
    at guard (/re_cwd/buck-out/v2/gen/fbsource/xplat/js/tools/flow-schema/__flow-schema__bin_build__/0a63598ffadb2c1e/out/flow-schema__bin_build.zip/node_modules/react-native/codegen/src/parsers/utils.js:50:14)
    at translateFunctionTypeAnnotation (/re_cwd/buck-out/v2/gen/fbsource/xplat/js/tools/flow-schema/__flow-schema__bin_build__/0a63598ffadb2c1e/out/flow-schema__bin_build.zip/node_modules/react-native/codegen/src/parsers/parsers-commons.js:334:25)
    at emitFunction (/re_cwd/buck-out/v2/gen/fbsource/xplat/js/tools/flow-schema/__flow-schema__bin_build__/0a63598ffadb2c1e/out/flow-schema__bin_build.zip/node_modules/react-native/codegen/src/parsers/parsers-primitives.js:149:3)
    at translateTypeAnnotation (/re_cwd/buck-out/v2/gen/fbsource/xplat/js/tools/flow-schema/__flow-schema__bin_build__/0a63598ffadb2c1e/out/flow-schema__bin_build.zip/node_modules/react-native/codegen/src/parsers/flow/modules/index.js:236:16)
    at /re_cwd/buck-out/v2/gen/fbsource/xplat/js/tools/flow-schema/__flow-schema__bin_build__/0a63598ffadb2c1e/out/flow-schema__bin_build.zip/node_modules/react-native/codegen/src/parsers/parsers-commons.js:343:7
    at guard (/re_cwd/buck-out/v2/gen/fbsource/xplat/js/tools/flow-schema/__flow-schema__bin_build__/0a63598ffadb2c1e/out/flow-schema__bin_build.zip/node_modules/react-native/codegen/src/parsers/utils.js:50:14)
    at translateFunctionTypeAnnotation (/re_cwd/buck-out/v2/gen/fbsource/xplat/js/tools/flow-schema/__flow-schema__bin_build__/0a63598ffadb2c1e/out/flow-schema__bin_build.zip/node_modules/react-native/codegen/src/parsers/parsers-commons.js:334:25)
    at buildPropertySchema (/re_cwd/buck-out/v2/gen/fbsource/xplat/js/tools/flow-schema/__flow-schema__bin_build__/0a63598ffadb2c1e/out/flow-schema__bin_build.zip/node_modules/react-native/codegen/src/parsers/parsers-commons.js:461:5)
    at /re_cwd/buck-out/v2/gen/fbsource/xplat/js/tools/flow-schema/__flow-schema__bin_build__/0a63598ffadb2c1e/out/flow-schema__bin_build.zip/node_modules/react-native/codegen/src/parsers/parsers-commons.js:845:16
    at guard (/re_cwd/buck-out/v2/gen/fbsource/xplat/js/tools/flow-schema/__flow-schema__bin_build__/0a63598ffadb2c1e/out/flow-schema__bin_build.zip/node_modules/react-native/codegen/src/parsers/utils.js:50:14)
    at /re_cwd/buck-out/v2/gen/fbsource/xplat/js/tools/flow-schema/__flow-schema__bin_build__/0a63598ffadb2c1e/out/flow-schema__bin_build.zip/node_modules/react-native/codegen/src/parsers/parsers-commons.js:825:12
    at Array.map (<anonymous>)
    at buildModuleSchema (/re_cwd/buck-out/v2/gen/fbsource/xplat/js/tools/flow-schema/__flow-schema__bin_build__/0a63598ffadb2c1e/out/flow-schema__bin_build.zip/node_modules/react-native/codegen/src/parsers/parsers-commons.js:811:3)
    at /re_cwd/buck-out/v2/gen/fbsource/xplat/js/tools/flow-schema/__flow-schema__bin_build__/0a63598ffadb2c1e/out/flow-schema__bin_build.zip/node_modules/react-native/codegen/src/parsers/parsers-commons.js:583:9
    at guard (/re_cwd/buck-out/v2/gen/fbsource/xplat/js/tools/flow-schema/__flow-schema__bin_build__/0a63598ffadb2c1e/out/flow-schema__bin_build.zip/node_modules/react-native/codegen/src/parsers/utils.js:50:14)
    at buildSchemaFromConfigType (/re_cwd/buck-out/v2/gen/fbsource/xplat/js/tools/flow-schema/__flow-schema__bin_build__/0a63598ffadb2c1e/out/flow-schema__bin_build.zip/node_modules/react-native/codegen/src/parsers/parsers-commons.js:582:24)
    at buildSchema (/re_cwd/buck-out/v2/gen/fbsource/xplat/js/tools/flow-schema/__flow-schema__bin_build__/0a63598ffadb2c1e/out/flow-schema__bin_build.zip/node_modules/react-native/codegen/src/parsers/parsers-commons.js:648:10)
    at FlowParser.parseString (/re_cwd/buck-out/v2/gen/fbsource/xplat/js/tools/flow-schema/__flow-schema__bin_build__/0a63598ffadb2c1e/out/flow-schema__bin_build.zip/node_modules/react-native/codegen/src/parsers/flow/parser.js:131:12)
    at getSchemasForFiles (/re_cwd/buck-out/v2/gen/fbsource/xplat/js/tools/flow-schema/__flow-schema__bin_build__/0a63598ffadb2c1e/out/flow-schema__bin_build.zip/fb-tools/flow-schema/schema/getSchemasForFiles.js:101:51)
    at TypegenSchemaBuilder.addHackyInputsForReactNativeOnly (/re_cwd/buck-out/v2/gen/fbsource/xplat/js/tools/flow-schema/__flow-schema__bin_build__/0a63598ffadb2c1e/out/flow-schema__bin_build.zip/fb-tools/flow-schema/schema/TypegenSchema.js:94:5)
    at createTypegenSchema (/re_cwd/buck-out/v2/gen/fbsource/xplat/js/tools/flow-schema/__flow-schema__bin_build__/0a63598ffadb2c1e/out/flow-schema__bin_build.zip/fb-tools/flow-schema/commands/ota-safety.js:158:42)
    at Object.handler (/re_cwd/buck-out/v2/gen/fbsource/xplat/js/tools/flow-schema/__flow-schema__bin_build__/0a63598ffadb2c1e/out/flow-schema__bin_build.zip/fb-tools/flow-schema/commands/ota-safety.js:222:25)
    at /re_cwd/buck-out/v2/gen/fbsource/xplat/js/tools/flow-schema/__flow-schema__bin_build__/0a63598ffadb2c1e/out/flow-schema__bin_build.zip/node_modules/yargs/build/index.cjs:1:8993
    at j (/re_cwd/buck-out/v2/gen/fbsource/xplat/js/tools/flow-schema/__flow-schema__bin_build__/0a63598ffadb2c1e/out/flow-schema__bin_build.zip/node_modules/yargs/build/index.cjs:1:4956)
    at _.handleValidationAndGetResult (/re_cwd/buck-out/v2/gen/fbsource/xplat/js/tools/flow-schema/__flow-schema__bin_build__/0a63598ffadb2c1e/out/flow-schema__bin_build.zip/node_modules/yargs/build/index.cjs:1:8962)
    at _.applyMiddlewareAndGetResult (/re_cwd/buck-out/v2/gen/fbsource/xplat/js/tools/flow-schema/__flow-schema__bin_build__/0a63598ffadb2c1e/out/flow-schema__bin_build.zip/node_modules/yargs/build/index.cjs:1:9604)
    at _.runCommand (/re_cwd/buck-out/v2/gen/fbsource/xplat/js/tools/flow-schema/__flow-schema__bin_build__/0a63598ffadb2c1e/out/flow-schema__bin_build.zip/node_modules/yargs/build/index.cjs:1:7231)
    at [runYargsParserAndExecuteCommands] (/re_cwd/buck-out/v2/gen/fbsource/xplat/js/tools/flow-schema/__flow-schema__bin_build__/0a63598ffadb2c1e/out/flow-schema__bin_build.zip/node_modules/yargs/build/index.cjs:1:58544)
    at te.parse (/re_cwd/buck-out/v2/gen/fbsource/xplat/js/tools/flow-schema/__flow-schema__bin_build__/0a63598ffadb2c1e/out/flow-schema__bin_build.zip/node_modules/yargs/build/index.cjs:1:40483)
    at run (/re_cwd/buck-out/v2/gen/fbsource/xplat/js/tools/flow-schema/__flow-schema__bin_build__/0a63598ffadb2c1e/out/flow-schema__bin_build.zip/fb-tools/flow-schema/index.js:22:3)
    at Object.<anonymous> (/re_cwd/buck-out/v2/gen/fbsource/xplat/js/tools/flow-schema/__flow-schema__bin_build__/0a63598ffadb2c1e/out/flow-schema__bin_build.zip/fb-tools/flow-schema/index.js:42:1)
    at Module._compile (node:internal/modules/cjs/loader:1730:14)
    at Object..js (node:internal/modules/cjs/loader:1895:10)
    at Module.load (node:internal/modules/cjs/loader:1465:32)
    at Function._load (node:internal/modules/cjs/loader:1282:12)
    at TracingChannel.traceSync (node:diagnostics_channel:322:14)
    at wrapModuleLoad (node:internal/modules/cjs/loader:235:24)
    at Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:171:5)
    at Object.run (/re_cwd/buck-out/v2/gen/fbsource/xplat/third-party/node/node-zip/__module__/84c2dad32661840d/out/run.js:202:10)
    at Object.<anonymous> (/re_cwd/buck-out/v2/gen/fbsource/xplat/third-party/node/node-zip/__module__/84c2dad32661840d/out/run.js:210:11)
    at Module._compile (node:internal/modules/cjs/loader:1730:14)
    at Object..js (node:internal/modules/cjs/loader:1895:10)
    at Module.load (node:internal/modules/cjs/loader:1465:32)
    at Function._load (node:internal/modules/cjs/loader:1282:12)
    at TracingChannel.traceSync (node:diagnostics_channel:322:14)
    at wrapModuleLoad (node:internal/modules/cjs/loader:235:24) {
  nodes: [
    {
      type: 'GenericTypeAnnotation',
      loc: [Object],
      id: [Object],
      typeParameters: null,
      range: [Array]
    }
  ]
}
```

Fixing it in this diff

Reviewed By: SamChou19815

Differential Revision: D89519620

fbshipit-source-id: 5adcc305e9a7c2277122ccf3f446e0e5488fedae
2025-12-18 23:44:16 -08:00
Marco Wang a6b76c0c51 Support Readonly in react-native-codegen (#54925)
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/54925

The lint is triggered in D89415612. Not sure what those file do but it seems a good fix

Changelog: [General][Added] Support parsing `Readonly` for the new Flow utility types

Reviewed By: SamChou19815

Differential Revision: D89418629

fbshipit-source-id: 34a2776711155dbd52046d55af18104e2eb32322
2025-12-17 18:45:46 -08:00
Marco Wang 3bf7a09ecb Support ReadonlyArray in react-native-codegen (#54924)
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/54924

The lint is triggered in D89415612. Not sure what those file do but it seems a good fix

Changelog: [General][Added] Support parsing `ReadonlyArray` for the new Flow utility types

Reviewed By: SamChou19815

Differential Revision: D89418033

fbshipit-source-id: ef227b344a693ec47dea86bbf34e0af17bad25fd
2025-12-17 18:45:46 -08:00
Pieter De Baets d25af38453 Fix backwards-compat for ModuleConstants<::Builder> (#54919)
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/54919

Add a new `ResultT` to codegen and some C++ trickery so that `ModuleConstants<Type::Builder>` is equal to ModuleConstants<Type> and existing overrides of the module spec remain compatible.

Changelog: [Internal]

Reviewed By: cipolleschi

Differential Revision: D89373357

fbshipit-source-id: ac192e99e424a829668722722cf0c374172de48b
2025-12-17 11:21:29 -08:00
Pieter De Baets 2abbd47d1b Fix type of constantsToExport arg (#54718)
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/54718

The cast in `constantsToExport` is unnecessary if we actually use the right type here, without the `Builder` suffix.

Not a breaking change, since Objective-C seemingly doesn't enforce these parameter constraints.

Changelog: [Internal]

Reviewed By: sammy-SC

Differential Revision: D87980865

fbshipit-source-id: c9052e219fdf44d012583fcaa94b10b7c189b510
2025-12-16 05:37:01 -08:00
Nick Lefever dd390dbbef Add fixtures for optional object generation (#54727)
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/54727

See title

Changelog: [Internal]

Reviewed By: cortinico

Differential Revision: D87843977

fbshipit-source-id: fdc8a1ecd60b46ab399150f3b38d7ef2ec83a7bf
2025-12-11 13:09:13 -08:00
Nick Lefever e581fa4f80 Implement optional object props generation (#54726)
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/54726

Add support for generating native optional object properties for custom types. This also updates the serialization of the custom type instances to only include properties that are defined on the object.

Changelog: [Internal]

Reviewed By: sammy-SC

Differential Revision: D87843979

fbshipit-source-id: c99179d7b48df62e836ab66dfad99f0723516af7
2025-12-11 13:09:13 -08:00
Nick Lefever 05599d0f66 Add fixtures for optional props generation (#54725)
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/54725

See title

Changelog: [Internal]

Reviewed By: sammy-SC

Differential Revision: D87843980

fbshipit-source-id: a7e9c6034da57fe5a51904bd6b9e62276bf315b3
2025-12-11 13:09:13 -08:00