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[Compiler Bug]: ESLint Compiler rules do not allow writing to external variable from effect-called function

facebook/react#31630·250633·JavaScript·322 天未动·1 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/#N4Igzg9grgTgxgUxALhASwLYAcIwC4AEwBUYCAogGaUJyEC+BlMEGBAOiDAgIZ2cBudgDsRCAB458BACYJKPKABtClKMLpoIwggEEAFAEoiIgiTJUadfUYIBeAHwmdZgjyNCX9ADQEA2gC6hp6mBAD0YQQAkpQEAJ7QBBgQAG4IBHgAFmhgTOqa2gQARvK46ZykFNS0eJy+WekIMCwwBADmEAi5PADuPHEAdKFqGnhaOu7GwKFmPWjCMhA9A+L2HCAAjIKh9CEu3HiwOgA8MmgpDsdhZxee9CIg9EA ### Repro steps 1. Run ESLint with eslint-plugin-react-compiler with the Playground's link 2. Observe error "InvalidReact: Writing to a variable defined outside a component or hook is not allowed. Consider using an effect" I assume functions called from effects should have the same liberties as the effects themselves, else we are forced to write big effects. I used `window` as the external variable as it represents a common use case, but any other name would work. Notice the error only happens when the function which writes to `window` is defined after the `useEffect` which calls it. Invert the order and it's fine. ### 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@npm:19.0.0-beta-0dec889-20241115
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