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Some components accept a union of a ref callback function or ref object. In this case we may infer the type as a function due to the presence of invoking the ref callback function. In that case, we currently report a "Hint: name `fooRef` as "ref" or with a "-Ref" suffix..." even though the variable is already named appropriately — the problem is that we inferred a non-ref type. So here we check the type and don't report this hint if we inferred another type.
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.