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I tried turning on `@enablePreserveExistingMemoizationGuarantees` by default and cleaned up a couple small things: * We emit freeze calls for StartMemoize deps but these had ValueReason.Other so the message wasn't great. We now treat these like other hook arguments. * PruneNonEscapingScopes was being too aggressive in this mode and memoizing even loads of globals. Switching to MemoizationLevel.Conditional ensures we build a graph that connects through to primitive-returning function calls, but doesn't unnecessarily force memoization otherwise. --- [//]: # (BEGIN SAPLING FOOTER) Stack created with [Sapling](https://sapling-scm.com). Best reviewed with [ReviewStack](https://reviewstack.dev/facebook/react/pull/34346). * #34347 * __->__ #34346 |
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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.
More information about the design and architecture of the compiler are covered in the Design Goals.
More information about developing the compiler itself is covered in the Development Guide.