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b37101486b
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
@react-native/codegen
Installation
yarn add --dev @react-native/codegen
Note: We're using yarn to install deps. Feel free to change commands to use npm 3+ and npx if you like
Testing
To run the tests in this package, run the following commands from the React Native root folder:
yarnto install the dependencies. You just need to run this onceyarn jest packages/react-native-codegen.