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Make assorted remaining modules Flow strict-local (#57737) - #57737

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rubennorte wants to merge 14 commits into
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rubennorte:export-D113763783
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Make assorted remaining modules Flow strict-local (#57737)#57737
rubennorte wants to merge 14 commits into
react:mainfrom
rubennorte:export-D113763783

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@rubennorte

@rubennorte rubennorte commented Jul 28, 2026

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Summary:

Upgrade the remaining assorted modules (Touchable pooling, ActionSheetIOS, Alert, LogBox highlight, Text native component, PushNotificationIOS) from flow to flow strict-local, preserving public type signatures so consumers are unaffected. Genuinely-dynamic internal any usages are marked with scoped $FlowFixMe[unclear-type] where an accurate type cannot be expressed.

Changelog: [Internal]

Reviewed By: huntie

Differential Revision: D113763783

@meta-cla meta-cla Bot added the CLA Signed This label is managed by the Facebook bot. Authors need to sign the CLA before a PR can be reviewed. label Jul 28, 2026
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meta-codesync Bot commented Jul 28, 2026

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@rubennorte has exported this pull request. If you are a Meta employee, you can view the originating Diff in D113763783.

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Warning

JavaScript API change detected

This PR commits an update to ReactNativeApi.d.ts, indicating a change to React Native's public JavaScript API.

  • Please include a clear changelog message.
  • This change will be subject to additional review.

This change was flagged as: POTENTIALLY_BREAKING

rubennorte added a commit to rubennorte/react-native that referenced this pull request Jul 28, 2026
Summary:
Pull Request resolved: react#57737

Upgrade the remaining assorted modules (Touchable pooling, ActionSheetIOS, Alert, LogBox highlight, Text native component, PushNotificationIOS) from `flow` to `flow strict-local`, preserving public type signatures so consumers are unaffected. Genuinely-dynamic internal `any` usages are marked with scoped `$FlowFixMe[unclear-type]` where an accurate type cannot be expressed.

Changelog: [Internal]

Reviewed By: huntie

Differential Revision: D113763783
@meta-codesync meta-codesync Bot changed the title Make assorted remaining modules Flow strict-local Make assorted remaining modules Flow strict-local (#57737) Jul 28, 2026
Summary:
Upgrade the legacy native module spec files from `flow` to `flow strict-local` to enforce stricter local type checking. Loose `Object` types were replaced with the codegen-equivalent `UnsafeObject`, and `Array<any>` parameters with `Array<unknown>`, both of which are codegen-identical so the generated native interfaces are unchanged.

Changelog: [Internal]

Differential Revision: D113763785
rubennorte added a commit to rubennorte/react-native that referenced this pull request Jul 29, 2026
Summary:
Pull Request resolved: react#57737

Upgrade the remaining assorted modules (Touchable pooling, ActionSheetIOS, Alert, LogBox highlight, Text native component, PushNotificationIOS) from `flow` to `flow strict-local`, preserving public type signatures so consumers are unaffected. Genuinely-dynamic internal `any` usages are marked with scoped `$FlowFixMe[unclear-type]` where an accurate type cannot be expressed.

Changelog: [Internal]

Reviewed By: huntie

Differential Revision: D113763783
rubennorte added a commit to rubennorte/react-native that referenced this pull request Jul 29, 2026
Summary:
Pull Request resolved: react#57737

Upgrade the remaining assorted modules (Touchable pooling, ActionSheetIOS, Alert, LogBox highlight, Text native component, PushNotificationIOS) from `flow` to `flow strict-local`, preserving public type signatures so consumers are unaffected. Genuinely-dynamic internal `any` usages are marked with scoped `$FlowFixMe[unclear-type]` where an accurate type cannot be expressed.

Changelog: [Internal]

Reviewed By: huntie

Differential Revision: D113763783
rubennorte added a commit to rubennorte/react-native that referenced this pull request Jul 29, 2026
Summary:
Pull Request resolved: react#57737

Upgrade the remaining assorted modules (Touchable pooling, ActionSheetIOS, Alert, LogBox highlight, Text native component, PushNotificationIOS) from `flow` to `flow strict-local`, preserving public type signatures so consumers are unaffected. Genuinely-dynamic internal `any` usages are marked with scoped `$FlowFixMe[unclear-type]` where an accurate type cannot be expressed.

Changelog: [Internal]

Reviewed By: huntie

Differential Revision: D113763783
rubennorte and others added 13 commits July 29, 2026 08:58
Summary:
Upgrade the Blob-related modules (`File`, `FileReader`, `URL`, `URLSearchParams`) from `flow` to `flow strict-local`. These expose spec-mandated getters/setters, so they opt out of the `unsafe-getters-setters` lint with a scoped `// flowlint unsafe-getters-setters:off` directive. `URL` also received small behavior-preserving refactors (local variables instead of parameter reassignment, explicit null/empty checks).

Changelog: [Internal]

Differential Revision: D113763778
Summary:
Upgrade the StyleSheet modules from `flow` to `flow strict-local`. `processFilter` and `setNormalizedColorAlpha` required small, behavior-preserving refactors (local variables instead of reassigning function parameters, and explicit null/empty checks) to satisfy the stricter lints.

Changelog: [Internal]

Differential Revision: D113763790
Summary:
Upgrade assorted Utilities modules from `flow` to `flow strict-local` with accurate types. `insetsDiffer` uses local variables instead of reassigning its function parameters. Behavior is unchanged.

Changelog: [Internal]

Differential Revision: D113763792
Summary:
Upgrade assorted components from `flow` to `flow strict-local` with accurate types. `Button` replaces implicit truthiness checks with explicit comparisons that preserve the exact previous runtime behavior (no logic change).

Changelog: [Internal]

Differential Revision: D113763782
Summary:
Upgrade `AppRegistry` (and its Flow type companion) and several Core timer modules from `flow` to `flow strict-local` with accurate types. Behavior is unchanged.

Changelog: [Internal]

Differential Revision: D113763781
Summary:
Upgrade the element inspector dev support modules from `flow` to `flow strict-local`, replacing loose `Object`/`Function` types with the accurate types already used by their callers and dependencies.

Changelog: [Internal]

Differential Revision: D113763787
Summary:
Upgrade several remaining Libraries modules (WebSocket, PanResponder, RCTEventEmitter, and Flow type tests) from `flow` to `flow strict-local` with accurate types. WebSocket exposes spec-mandated getters/setters and opts out of the `unsafe-getters-setters` lint with a scoped directive. Behavior is unchanged.

Changelog: [Internal]

Differential Revision: D113763779
Summary:
Upgrade the FlatList/SectionList list components, the networking modules (`XMLHttpRequest`, `FormData`, `RCTNetworking`, `convertRequestBody`), and the UIManager modules from `flow` to `flow strict-local`. Their existing public type signatures are preserved exactly, so consumers are unaffected; internal `any`/`Object` usages were replaced with accurate types. One consumer was updated to match.

Changelog: [Internal]

Differential Revision: D113763786
Summary:
Upgrade the remaining ReactNative and Core modules from `flow` to `flow strict-local`, preserving public type signatures so consumers are unaffected. Genuinely-dynamic internal `any` usages are marked with scoped `$FlowFixMe[unclear-type]` where an accurate type cannot be expressed.

Changelog: [Internal]

Differential Revision: D113763791
Summary:
Upgrade `deepDiffer`, `codegenNativeCommands`, `Dimensions`, and `ReactNativeTestTools` from `flow` to `flow strict-local`, preserving public type signatures. These operate on values of arbitrary shape, so the unavoidable internal `any` usages are marked with scoped `$FlowFixMe[unclear-type]`.

Changelog: [Internal]

Differential Revision: D113763789
Summary:
Upgrade the Settings modules from `flow` to `flow strict-local`, preserving public type signatures so consumers are unaffected. Values read from the settings store are of arbitrary shape, so those internal `any` usages are marked with scoped `$FlowFixMe[unclear-type]`.

Changelog: [Internal]

Differential Revision: D113763793
Summary:
Upgrade `processTransform` from `flow` to `flow strict-local`, preserving its public type signature. Mechanical violations were fixed accurately; arbitrary-shape internal values are marked with scoped `$FlowFixMe[unclear-type]`.

Changelog: [Internal]

Differential Revision: D113763784
Summary:
Pull Request resolved: react#57737

Upgrade the remaining assorted modules (Touchable pooling, ActionSheetIOS, Alert, LogBox highlight, Text native component, PushNotificationIOS) from `flow` to `flow strict-local`, preserving public type signatures so consumers are unaffected. Genuinely-dynamic internal `any` usages are marked with scoped `$FlowFixMe[unclear-type]` where an accurate type cannot be expressed.

Changelog: [Internal]

Reviewed By: huntie

Differential Revision: D113763783
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