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When supporting ref as prop in https://github.com/facebook/react/pull/31558, I missed fixing the optimization to pass a spread-props-only props object in without an additional object copy. In the case that we have only a ref along with a spread, we cannot return only the spread object. This results in dropping the ref. In this example ```javascript <Foo ref={ref} {...props} /> ``` The bugged output is: ```javascript { // ... props: props } ``` With this change we now get the correct output: ```javascript { // ... props: {ref: ref, ...props} } ``` |
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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.