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Remove Paper (ReactNativeRenderer) files (#56557)#56557

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rubennorte wants to merge 3 commits intofacebook:mainfrom
rubennorte:export-D101353118
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Remove Paper (ReactNativeRenderer) files (#56557)#56557
rubennorte wants to merge 3 commits intofacebook:mainfrom
rubennorte:export-D101353118

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@rubennorte rubennorte commented Apr 22, 2026

Summary:

All Meta apps have migrated to Fabric, so the Paper renderer files are no longer needed.

This commit removes:

  • ReactNativeRenderer-dev.js, ReactNativeRenderer-dev.fb.js
  • ReactNativeRenderer-prod.js, ReactNativeRenderer-prod.fb.js
  • ReactNativeRenderer-profiling.js, ReactNativeRenderer-profiling.fb.js
  • ReactNative.js shim

Also updates:

  • AppRegistryImpl.js: unmountApplicationComponentAtRootTag is now a no-op with error log

Changelog: [internal]

Reviewed By: javache

Differential Revision: D101353118

@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 Apr 22, 2026
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meta-codesync Bot commented Apr 22, 2026

@rubennorte has exported this pull request. If you are a Meta employee, you can view the originating Diff in D101353118.

@meta-codesync meta-codesync Bot changed the title Remove Paper (ReactNativeRenderer) files Remove Paper (ReactNativeRenderer) files (#56557) Apr 22, 2026
rubennorte added a commit to rubennorte/react-native that referenced this pull request Apr 22, 2026
Summary:

All Meta apps have migrated to Fabric, so the Paper renderer files are no longer needed.

This commit removes:
- ReactNativeRenderer-dev.js, ReactNativeRenderer-dev.fb.js
- ReactNativeRenderer-prod.js, ReactNativeRenderer-prod.fb.js
- ReactNativeRenderer-profiling.js, ReactNativeRenderer-profiling.fb.js
- ReactNative.js shim

Also updates:
- AppRegistryImpl.js: unmountApplicationComponentAtRootTag is now a no-op with error log
- MyLegacyViewNativeComponent.js: Use findNodeHandle from react-native instead of deleted shim

Differential Revision: D101353118
rubennorte added a commit to rubennorte/react-native that referenced this pull request Apr 22, 2026
Summary:

All Meta apps have migrated to Fabric, so the Paper renderer files are no longer needed.

This commit removes:
- ReactNativeRenderer-dev.js, ReactNativeRenderer-dev.fb.js
- ReactNativeRenderer-prod.js, ReactNativeRenderer-prod.fb.js
- ReactNativeRenderer-profiling.js, ReactNativeRenderer-profiling.fb.js
- ReactNative.js shim

Also updates:
- AppRegistryImpl.js: unmountApplicationComponentAtRootTag is now a no-op with error log
- MyLegacyViewNativeComponent.js: Use findNodeHandle from react-native instead of deleted shim

Differential Revision: D101353118
rubennorte added a commit to rubennorte/react-native that referenced this pull request Apr 22, 2026
Summary:
Pull Request resolved: facebook#56557

All Meta apps have migrated to Fabric, so the Paper renderer files are no longer needed.

This commit removes:
- ReactNativeRenderer-dev.js, ReactNativeRenderer-dev.fb.js
- ReactNativeRenderer-prod.js, ReactNativeRenderer-prod.fb.js
- ReactNativeRenderer-profiling.js, ReactNativeRenderer-profiling.fb.js
- ReactNative.js shim

Also updates:
- AppRegistryImpl.js: unmountApplicationComponentAtRootTag is now a no-op with error log
- MyLegacyViewNativeComponent.js: Use findNodeHandle from react-native instead of deleted shim

Differential Revision: D101353118
rubennorte added a commit to rubennorte/react-native that referenced this pull request Apr 22, 2026
Summary:
Pull Request resolved: facebook#56557

All Meta apps have migrated to Fabric, so the Paper renderer files are no longer needed.

This commit removes:
- ReactNativeRenderer-dev.js, ReactNativeRenderer-dev.fb.js
- ReactNativeRenderer-prod.js, ReactNativeRenderer-prod.fb.js
- ReactNativeRenderer-profiling.js, ReactNativeRenderer-profiling.fb.js
- ReactNative.js shim

Also updates:
- AppRegistryImpl.js: unmountApplicationComponentAtRootTag is now a no-op with error log
- MyLegacyViewNativeComponent.js: Use findNodeHandle from react-native instead of deleted shim

Differential Revision: D101353118
@rubennorte rubennorte force-pushed the export-D101353118 branch 2 times, most recently from da9a363 to 40f84d9 Compare April 22, 2026 15:53
rubennorte added a commit to rubennorte/react-native that referenced this pull request Apr 22, 2026
Summary:

All Meta apps have migrated to Fabric, so the Paper renderer files are no longer needed.

This commit removes:
- ReactNativeRenderer-dev.js, ReactNativeRenderer-dev.fb.js
- ReactNativeRenderer-prod.js, ReactNativeRenderer-prod.fb.js
- ReactNativeRenderer-profiling.js, ReactNativeRenderer-profiling.fb.js
- ReactNative.js shim

Also updates:
- AppRegistryImpl.js: unmountApplicationComponentAtRootTag is now a no-op with error log

Changelog: [internal]

Reviewed By: javache

Differential Revision: D101353118
rubennorte added a commit to rubennorte/react-native that referenced this pull request Apr 22, 2026
Summary:

All Meta apps have migrated to Fabric, so the Paper renderer files are no longer needed.

This commit removes:
- ReactNativeRenderer-dev.js, ReactNativeRenderer-dev.fb.js
- ReactNativeRenderer-prod.js, ReactNativeRenderer-prod.fb.js
- ReactNativeRenderer-profiling.js, ReactNativeRenderer-profiling.fb.js
- ReactNative.js shim

Also updates:
- AppRegistryImpl.js: unmountApplicationComponentAtRootTag is now a no-op with error log

Changelog: [internal]

Reviewed By: javache

Differential Revision: D101353118
rubennorte added a commit to rubennorte/react-native that referenced this pull request Apr 22, 2026
Summary:

All Meta apps have migrated to Fabric, so the Paper renderer files are no longer needed.

This commit removes:
- ReactNativeRenderer-dev.js, ReactNativeRenderer-dev.fb.js
- ReactNativeRenderer-prod.js, ReactNativeRenderer-prod.fb.js
- ReactNativeRenderer-profiling.js, ReactNativeRenderer-profiling.fb.js
- ReactNative.js shim

Also updates:
- AppRegistryImpl.js: unmountApplicationComponentAtRootTag is now a no-op with error log

Changelog: [internal]

Reviewed By: javache

Differential Revision: D101353118
rubennorte added a commit to rubennorte/react-native that referenced this pull request Apr 22, 2026
Summary:

All Meta apps have migrated to Fabric, so the Paper renderer files are no longer needed.

This commit removes:
- ReactNativeRenderer-dev.js, ReactNativeRenderer-dev.fb.js
- ReactNativeRenderer-prod.js, ReactNativeRenderer-prod.fb.js
- ReactNativeRenderer-profiling.js, ReactNativeRenderer-profiling.fb.js
- ReactNative.js shim

Also updates:
- AppRegistryImpl.js: unmountApplicationComponentAtRootTag is now a no-op with error log

Changelog: [internal]

Reviewed By: javache

Differential Revision: D101353118
rubennorte added a commit to rubennorte/react-native that referenced this pull request Apr 22, 2026
Summary:

All Meta apps have migrated to Fabric, so the Paper renderer files are no longer needed.

This commit removes:
- ReactNativeRenderer-dev.js, ReactNativeRenderer-dev.fb.js
- ReactNativeRenderer-prod.js, ReactNativeRenderer-prod.fb.js
- ReactNativeRenderer-profiling.js, ReactNativeRenderer-profiling.fb.js
- ReactNative.js shim

Also updates:
- AppRegistryImpl.js: unmountApplicationComponentAtRootTag is now a no-op with error log

Changelog: [internal]

Reviewed By: javache

Differential Revision: D101353118
rubennorte added a commit to rubennorte/react-native that referenced this pull request Apr 22, 2026
Summary:
Pull Request resolved: facebook#56557

All Meta apps have migrated to Fabric, so the Paper renderer files are no longer needed.

This commit removes:
- ReactNativeRenderer-dev.js, ReactNativeRenderer-dev.fb.js
- ReactNativeRenderer-prod.js, ReactNativeRenderer-prod.fb.js
- ReactNativeRenderer-profiling.js, ReactNativeRenderer-profiling.fb.js
- ReactNative.js shim

Also updates:
- AppRegistryImpl.js: unmountApplicationComponentAtRootTag is now a no-op with error log

Changelog: [internal]

Reviewed By: javache

Differential Revision: D101353118
Summary:
Migrates the remaining meaningful coverage from `TextInput-test.js` (Jest with snapshots) over to `TextInput-itest.js` (Fantom) so we can rely on a single test file that exercises the real renderer instead of a heavily-mocked one.

Changes in `TextInput-itest.js`:
- Add a `focus()` test verifying that focusing a `TextInput` unfocuses any previously focused one (mirrors Jest's "should unfocus when other TextInput is focused").
- Add a top-level `has the correct displayName` test.
- Add a new set of `props` describes that assert the props from the original Jest snapshot tests reach the mounting layer via `getRenderedOutput({props: [...]}).toJSX()`:
  - `id and nativeID`: `id` → `nativeID` mapping, `nativeID` pass-through, and `id` precedence over `nativeID`.
  - `testID`: pass-through.
  - `aria-label and accessibilityLabel`: `aria-label` → `accessibilityLabel` mapping and `accessibilityLabel` pass-through.
  - `aria-* and accessibilityState`: `aria-busy/checked/disabled/expanded/selected` mapped into `accessibilityState`.
  - `accessibilityRole`: pass-through.
  - `style`: `backgroundColor` propagated as a native color value.

Tests intentionally NOT ported:
- Inherited `HostInstance` method presence checks (`focus`, `blur`, `setNativeProps`, `measure`, `measureInWindow`, `measureLayout`): they are guaranteed by Flow typing on `ReactNativeElement`, exercised in `ReactNativeElement-itest.js`, and Flow's `method-unbinding` rule prevents the simple `toBeInstanceOf(Function)` check without `$FlowFixMe` (which is forbidden by project rules).
- `focus() should not do anything if the TextInput is not editable`: `TextInputState.focusTextInput` reads `textField.currentProps?.editable`, but in the new architecture `currentProps` is not exposed on the public `ReactNativeElement` instance, so the check is effectively bypassed. The Jest test only passed by monkey-patching `currentProps`. Documenting this as expected behavior in Fantom would mask a real bug.
- `should give precedence to textContentType when set`: `textContentType` is iOS-only and Fantom defaults to Android (`AndroidTextInput`).

Files removed:
- `Libraries/Components/TextInput/__tests__/TextInput-test.js`
- `Libraries/Components/TextInput/__tests__/__snapshots__/TextInput-test.js.snap`

Changelog: [Internal]

Differential Revision: D101977225
Summary:
All Meta apps have migrated to Fabric, so we no longer need to support Paper in the renderer infrastructure.

This commit simplifies:
- RendererImplementation.js: Rewritten to only use Fabric renderer
- RendererProxy.fb.js: Removed Paper-related exports
- RendererProxy.js: Updated comment to reflect Fabric variants (profiling vs production)
- FabricRendererImplementationWithProfiling.js: Removed Paper shims
- Jest mock RendererProxy.js: Removed Paper exports

Differential Revision: D101353113
rubennorte added a commit to rubennorte/react-native that referenced this pull request Apr 23, 2026
Summary:

All Meta apps have migrated to Fabric, so the Paper renderer files are no longer needed.

This commit removes:
- ReactNativeRenderer-dev.js, ReactNativeRenderer-dev.fb.js
- ReactNativeRenderer-prod.js, ReactNativeRenderer-prod.fb.js
- ReactNativeRenderer-profiling.js, ReactNativeRenderer-profiling.fb.js
- ReactNative.js shim

Also updates:
- AppRegistryImpl.js: unmountApplicationComponentAtRootTag is now a no-op with error log

Changelog: [internal]

Reviewed By: javache

Differential Revision: D101353118
rubennorte added a commit to rubennorte/react-native that referenced this pull request Apr 23, 2026
Summary:

All Meta apps have migrated to Fabric, so the Paper renderer files are no longer needed.

This commit removes:
- ReactNativeRenderer-dev.js, ReactNativeRenderer-dev.fb.js
- ReactNativeRenderer-prod.js, ReactNativeRenderer-prod.fb.js
- ReactNativeRenderer-profiling.js, ReactNativeRenderer-profiling.fb.js
- ReactNative.js shim

Also updates:
- AppRegistryImpl.js: unmountApplicationComponentAtRootTag is now a no-op with error log

Changelog: [internal]

Reviewed By: javache

Differential Revision: D101353118
rubennorte added a commit to rubennorte/react-native that referenced this pull request Apr 23, 2026
Summary:

All Meta apps have migrated to Fabric, so the Paper renderer files are no longer needed.

This commit removes:
- ReactNativeRenderer-dev.js, ReactNativeRenderer-dev.fb.js
- ReactNativeRenderer-prod.js, ReactNativeRenderer-prod.fb.js
- ReactNativeRenderer-profiling.js, ReactNativeRenderer-profiling.fb.js
- ReactNative.js shim

Also updates:
- AppRegistryImpl.js: unmountApplicationComponentAtRootTag is now a no-op with error log

Changelog: [internal]

Reviewed By: javache

Differential Revision: D101353118
rubennorte added a commit to rubennorte/react-native that referenced this pull request Apr 23, 2026
Summary:

All Meta apps have migrated to Fabric, so the Paper renderer files are no longer needed.

This commit removes:
- ReactNativeRenderer-dev.js, ReactNativeRenderer-dev.fb.js
- ReactNativeRenderer-prod.js, ReactNativeRenderer-prod.fb.js
- ReactNativeRenderer-profiling.js, ReactNativeRenderer-profiling.fb.js
- ReactNative.js shim

Also updates:
- AppRegistryImpl.js: unmountApplicationComponentAtRootTag is now a no-op with error log

Changelog: [internal]

Reviewed By: javache

Differential Revision: D101353118
Summary:
Pull Request resolved: facebook#56557

All Meta apps have migrated to Fabric, so the Paper renderer files are no longer needed.

This commit removes:
- ReactNativeRenderer-dev.js, ReactNativeRenderer-dev.fb.js
- ReactNativeRenderer-prod.js, ReactNativeRenderer-prod.fb.js
- ReactNativeRenderer-profiling.js, ReactNativeRenderer-profiling.fb.js
- ReactNative.js shim

Also updates:
- AppRegistryImpl.js: unmountApplicationComponentAtRootTag is now a no-op with error log

Changelog: [internal]

Reviewed By: javache

Differential Revision: D101353118
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meta-codesync Bot commented Apr 23, 2026

This pull request has been merged in 2cb5a9d.

@facebook-github-tools facebook-github-tools Bot added the Merged This PR has been merged. label Apr 23, 2026
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