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[Compiler Bug]: Incorrect "Writing to a variable defined outside a component or hook is not allowed." error

facebook/react#31544·250633·JavaScript·322 天未动·0 条评论·上游最近活跃 ·池内状态:可认领
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上游 issue 正文

### What kind of issue is this? - [ ] React Compiler core (the JS output is incorrect, or your app works incorrectly after optimization) - [ ] babel-plugin-react-compiler (build issue installing or using the Babel plugin) - [X] eslint-plugin-react-compiler (build issue installing or using the eslint plugin) - [ ] react-compiler-healthcheck (build issue installing or using the healthcheck script) ### Link to repro https://playground.react.dev/#N4Igzg9grgTgxgUxALhASwLYAcIwC4AEwBUYCAgllgQL4EBmMEGBA5GgHYDWrA3ADodMOfERJkAwgEMANjIBGUuFwA04hBIgc8CAB6E6jZmxgIlePoOG5CxUggCiMJjABC0DgBMpMAJ60GJhZWU3MAWgRnXDD5D28-Sw4rbBsxLCYAcxgpDE1tPQNA41YAOgB6Th0YDlkwEoArMETBMoAqVsECVoJyAgAlMzhCAAsICC4GXAIlRDAwTgyiAAEZTgmABUzsjDpOMDwpDkRprwIAAz00PDOGKCO8NC0CPGGpQjQwdU9JmAIwUYA7gsTgRIi4CAAKABuaCkILBU1id3ivgAlCdvpcHhwMiVOq0yoI9CJCPQ7kNHhx1JsIFkchD0cBOgQZAhbH9Ae5kT5-HQALzqJwuLleHkMgRUllssRY5DTKgOXRXAIC+yULDi5ms9npWnbFXqPI6fQQ3V03JaY14VESrXSrEEVWSWQKJRcCHMgiQhEwOV3LgcCAAjjovkAPiInq9BF1szqWM0ngQjoIAEZbZLoxygyKURCfTao16pAqlXh81EYIXM7QVFGANolrCKq5qf45uI8gC6dcl1eZpjwsCpxDN2zUDpoEpoghANCAA ### Repro steps 1. Run ESLint with eslint-plugin-react-compiler enabled on the code from the repro and observe an error "Writing to a variable defined outside a component or hook is not allowed. Consider using an effect". The error is caused by using `process.exitCode = 1` inside a `useCallback` hook, which does seem like a false positive. Or am I missing something? Thank you. ### How often does this bug happen? Every time ### What version of React are you using? 18.3.1 ### What version of React Compiler are you using? eslint-plugin-react-compiler@19.0.0-beta-a7bf2bd-20241110
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