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Henry Q. Dineen
4c2e457c7c
## Summary We ran React compiler against part of our codebase and collected compiler errors. One of the more common non-actionable errors is caused by usage of the `!` TypeScript non-null assertion operation: ``` (BuildHIR::lowerExpression) Handle TSNonNullExpression expressions ``` It seems like React Compiler _should_ be able to support this by just ignoring the syntax and using the underlying expression. I'm sure a lot of our non-null assertion usage should not exist and I understand if React Compiler does not want to support this syntax. It wasn't obvious to me if this omission was intentional or if there are future plans to use `TSNonNullExpression` as part of the compiler's analysis. If there are no future plans it seems like just ignoring it should be fine. ## How did you test this change? ```sh ❯ yarn snap --filter yarn run v1.17.3 $ yarn workspace babel-plugin-react-compiler run snap --filter $ node ../snap/dist/main.js --filter PASS non-null-assertion 1 Tests, 1 Passed, 0 Failed ```
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.