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Lauren Tan
275c98dbe8
Previously we would insert new (Arrow)FunctionExpressions as a sibling of the original function. However this would break in the outlining case as it would cause the original function expression's parent to become a SequenceExpression, breaking a bunch of assumptions in the babel plugin. To get around this, we synthesize a new VariableDeclaration to contain the newly inserted function expression and therefore insert it as a true sibling to the original function. Yeah, it's kinda gross ghstack-source-id: df13e3b439962b95af4bbd82ef4302624668faf7 Pull Request resolved: https://github.com/facebook/react/pull/30446
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.