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@simon-paris simon-paris commented Sep 30, 2024

Closes #630

Summary

This adds an option to suppress errors for dependencies that are in the dependencies array but not used in the hook function.

The option schema is below. It could also have the new field inside the hooks array but I think you'd generally want to use this for every hook type.

// this config
"useExhaustiveDependencies": {
  "reportUnnecessaryDependencies": false,
  "hooks": [...] // unchanged
}

// allows this
function ReportUnecessaryDependencies() {
    const [a] = useState("hello")
    const [b] = useState("world");
    useEffect(() => {
        console.log(a); // <- prints when b changes, but does not use b
    }, [a, b]);
    return a;
}

Additionally, the options struct for this rule was originally designed to be reused, but at some point it was removed from useHookAtTopLevel here, now it's not actually reused anywhere. Since this PR adds an option field specific to this rule, I've renamed the options struct to indicate that it's non-reusable.

Test Plan

A unit test is included

@github-actions github-actions bot added A-Linter Area: linter L-JavaScript Language: JavaScript and super languages labels Sep 30, 2024
@simon-paris simon-paris changed the title feat: Add option to useExhaustiveDependencies to disable errors for unecessary dependencies feat(useExhaustiveDependencies): Add option to disable errors for unecessary dependencies Sep 30, 2024
@simon-paris simon-paris changed the title feat(useExhaustiveDependencies): Add option to disable errors for unecessary dependencies feat(useExhaustiveDependencies): add option to disable errors for unecessary dependencies Sep 30, 2024
@ematipico ematipico requested a review from arendjr September 30, 2024 09:29
@github-actions github-actions bot added the A-Project Area: project label Sep 30, 2024
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codspeed-hq bot commented Sep 30, 2024

CodSpeed Performance Report

Merging #4135 will not alter performance

Comparing simon-paris:feat/use-exhaustive-dependencies-disable-report-unused (d02c9ef) with main (a6ea07e)

Summary

✅ 105 untouched benchmarks

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@arendjr arendjr left a comment

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Nice work! Just need to fix the defaults a bit.

@simon-paris
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@arendjr Thanks, all fixed

@simon-paris simon-paris requested a review from arendjr October 1, 2024 04:23
@arendjr arendjr merged commit 10a1371 into biomejs:main Oct 1, 2024
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arendjr commented Oct 1, 2024

Just realized we forgot a CHANGELOG entry. Feel free to add it in the next PR or do a separate one.

@simon-paris simon-paris deleted the feat/use-exhaustive-dependencies-disable-report-unused branch October 1, 2024 07:57
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📎 Break useExhaustiveDependencies into two rules

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