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Fix no-unused-prop-types setState updater #1507

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merged 1 commit into from Nov 13, 2017

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petersendidit
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@petersendidit petersendidit commented Oct 29, 2017

Handle when props are used in the setState update callback

Fix #1506

'class MyComponent extends React.Component {',
' onFoo() {',
' this.setState((prevState, props) => {',
' props.doSomething();',
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does this work independent of what "props" is called?

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Not yet, working a better version that will handle more cases. This code doesn't handle destructuring or anything like that.

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I think it's important that it handles that from the get-go.

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Does this case work with the prop-types rule? If not: the code is really similar and it should be possible to apply the same logic there.

Handle when props are used in the setState update callback

Fix jsx-eslint#1506
@petersendidit petersendidit changed the title Fix no-unused-prop-types arrow callbacks Fix no-unused-prop-types setState updater Nov 5, 2017
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Should handle this case much better now. Added a test case for when the second argument to the setState updater is not named props and is not destructured. Let me know if there are other test cases that should be added.

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Seems legit

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jseminck commented Nov 6, 2017

What about the prop-types rule? Does it also need this functionality?

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ljharb commented Nov 6, 2017

Yes, I think it does.

@ljharb ljharb merged commit 64cf2d7 into jsx-eslint:master Nov 13, 2017
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4 participants