Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/46295
X-link: https://github.com/facebook/metro/pull/1343
Updated all **babel** packages in all `package.json` across the repo and ran `npx yarn-deduplicate yarn.lock --scopes babel`. Afterwards, fixed the following issues appearing as a result of that (squashed the following initially separate diffs to make this packages update work atomically):
### (D61336392) updated jest snapshot tests failing
### (D61336393) updated babel types and corrected typings accordingly
The latest babel 7 introduces the following features we need to adjust our types to:
* `JSXNamespacedName` is removed from valid `CallExpression` args ([PR](https://github.com/babel/babel/pull/16421))
* `JSXNamespacedName` is used for namespaced XML properties in things like `<div namespace:name="value">`, but `fn(namespace:name)` doesn't make any sense.
* Dynamic imports are enabled behind a new flag `createImportExpressions` ([PR](https://github.com/babel/babel/pull/15682)), introducing calls such as `import(foo, options)`. These complicate the expected values passed to `import` to be more than just strings.
* Since these are behind a flag that is not expected to be enabled, we can throw an error for now and whoever uses it can add a support to it if needed later.
### Added a new metro ENV ignore
`BROWSERSLIST_ROOT_PATH` is set to `""` explicitly in `xplat/js/BUCK`
and then ignored in
`js/tools/metro-buck-transform-worker/src/EnvVarAllowList.js`
Reviewed By: robhogan
Differential Revision: D61543660
fbshipit-source-id: abbcab72642cf6dc03eed5142eb78dbcc7f63a86
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/44179
Fix `package.json#exports` main entry point in `react-native/oss-library-example` (which is actually at `packages/react-native-test-library`), to fix a Metro resolver warning on building RN-tester.
`"./": "./index.js"` is intended as an export map entry for the main export, whereas `".": "./index.js"` is correct (see [`PACKAGE_EXPORTS_RESOLVE`](https://nodejs.org/api/esm.html) spec).
Changelog: [Internal]
(This package is not published)
Reviewed By: cortinico, dmytrorykun
Differential Revision: D56414480
fbshipit-source-id: 01874cf11ae687aaf5aa5aa56075232f03d691b8
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/43068
This diff adds `react-native-test-library` package.
It contains native module and native component example, and targets both the new and the old architecture. It has structure similar to many OSS React Native libraries, and is supposed to be used to test the integration with third-party libraries.
It is integrated with RNTester as the **OSS Library Example** screen.
{F1457510909}
**Change Background** tests native commands.
**Set Opacity** tests native props.
**Get Random Number** tests native module.
Changelog: [Internal]
Reviewed By: RSNara
Differential Revision: D50793835
fbshipit-source-id: ff6daefab10e6e9f13049e3013f8f63cfa8a929e
Vitali Zaidman
Alex Hunt
Rob Hogan
Dmitry Rykun