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Recursively collect identifier / property loads and optional chains from inner functions. This PR is in preparation for #31200 Previously, we only did this in `collectHoistablePropertyLoads` to understand hoistable property loads from inner functions. 1. collectTemporariesSidemap 2. collectOptionalChainSidemap 3. collectHoistablePropertyLoads - ^ this recursively calls `collectTemporariesSidemap`, `collectOptionalChainSidemap`, and `collectOptionalChainSidemap` on inner functions 4. collectDependencies Now, we have 1. collectTemporariesSidemap - recursively record identifiers in inner functions. Note that we track all temporaries in the same map as `IdentifierIds` are currently unique across functions 2. collectOptionalChainSidemap - recursively records optional chain sidemaps in inner functions 3. collectHoistablePropertyLoads - (unchanged, except to remove recursive collection of temporaries) 4. collectDependencies - unchanged: to be modified to recursively collect dependencies in next PR ' --- [//]: # (BEGIN SAPLING FOOTER) Stack created with [Sapling](https://sapling-scm.com). Best reviewed with [ReviewStack](https://reviewstack.dev/facebook/react/pull/31346). * #31202 * #31203 * #31201 * #31200 * __->__ #31346 * #31199
babel-plugin-react-compiler
React Compiler is a compiler that optimizes React applications, ensuring that only the minimal parts of components and hooks will re-render when state changes. The compiler also validates that components and hooks follow the Rules of React.
This package contains the React Compiler Babel plugin use in projects that make use of Babel. You can find instructions for using this plugin here: https://react.dev/learn/react-compiler