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Joe Savona
629c19cffe
Some of the false positives we've seen have to do with the need to align our ref validation with our understanding of which functions may be called during render. The new mutability/aliasing model makes this much more explicit, with the ability to create Impure effects which we then throw as errors if they are reachable during render. This means we can now revisit ref validation by just emitting impure effects.
That's what this new pass does. It's a bit simpler: it implements the check for `ref.current == null` guarded if blocks. Otherwise it disallows access to `ref.current` specifically. Unlike before, we intentionally allow passing ref objects to functions — we just see a lot of many false positives on disallowing things like `children({ref})` or similar.
Open to feedback! This is also still WIP.
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.