[compiler] Cleanup diagnostic messages #33765
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This was referenced Jul 11, 2025
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This was referenced Jul 12, 2025
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Enable more validations to help catch bad patterns, but only in the linter. These rules are already enabled by default in the compiler _if_ violations could produce unsafe output. --- [//]: # (BEGIN SAPLING FOOTER) Stack created with [Sapling](https://sapling-scm.com). Best reviewed with [ReviewStack](https://reviewstack.dev/facebook/react/pull/33752). * #33981 * #33777 * #33767 * #33765 * #33760 * #33759 * #33758 * #33751 * __->__ #33752 * #33753
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Work in progress, i'm experimenting with revamping our diagnostic infra. Starting with a better format for representing errors, with an ability to point ot multiple locations, along with better printing of errors. Of course, Babel still controls the printing in the majority case so this still needs more work. --- [//]: # (BEGIN SAPLING FOOTER) Stack created with [Sapling](https://sapling-scm.com). Best reviewed with [ReviewStack](https://reviewstack.dev/facebook/react/pull/33751). * #33981 * #33777 * #33767 * #33765 * #33760 * #33759 * #33758 * __->__ #33751 * #33752 * #33753
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This PR uses the new diagnostic type for most of the error messages produced in our explicit validation passes (`Validation/` directory). One of the validations produced multiple errors as a hack to showing multiple related locations, which we can now consolidate into a single diagnostic. --- [//]: # (BEGIN SAPLING FOOTER) Stack created with [Sapling](https://sapling-scm.com). Best reviewed with [ReviewStack](https://reviewstack.dev/facebook/react/pull/33758). * #33981 * #33777 * #33767 * #33765 * #33760 * #33759 * __->__ #33758
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…33759) Uses the new diagnostic infrastructure for this validation, which lets us provide a more targeted message on the text that we highlight (eg "This dependency may be mutated later") separately from the overall error message. --- [//]: # (BEGIN SAPLING FOOTER) Stack created with [Sapling](https://sapling-scm.com). Best reviewed with [ReviewStack](https://reviewstack.dev/facebook/react/pull/33759). * #33981 * #33777 * #33767 * #33765 * #33760 * __->__ #33759 * #33758
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Uses the new diagnostic type for errors created during mutation/aliasing inference, such as errors for mutating immutable values like props or state, reassigning globals, etc. --- [//]: # (BEGIN SAPLING FOOTER) Stack created with [Sapling](https://sapling-scm.com). Best reviewed with [ReviewStack](https://reviewstack.dev/facebook/react/pull/33760). * #33981 * #33777 * #33767 * #33765 * __->__ #33760
Minor sytlistic cleanup
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Enable more validations to help catch bad patterns, but only in the linter. These rules are already enabled by default in the compiler _if_ violations could produce unsafe output. --- [//]: # (BEGIN SAPLING FOOTER) Stack created with [Sapling](https://sapling-scm.com). Best reviewed with [ReviewStack](https://reviewstack.dev/facebook/react/pull/33752). * #33981 * #33777 * #33767 * #33765 * #33760 * #33759 * #33758 * #33751 * __->__ #33752 * #33753 DiffTrain build for [0d39496](0d39496)
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Enable more validations to help catch bad patterns, but only in the linter. These rules are already enabled by default in the compiler _if_ violations could produce unsafe output. --- [//]: # (BEGIN SAPLING FOOTER) Stack created with [Sapling](https://sapling-scm.com). Best reviewed with [ReviewStack](https://reviewstack.dev/facebook/react/pull/33752). * #33981 * #33777 * #33767 * #33765 * #33760 * #33759 * #33758 * #33751 * __->__ #33752 * #33753 DiffTrain build for [0d39496](0d39496)
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Minor sytlistic cleanup
Stack created with Sapling. Best reviewed with ReviewStack.