BaseControl: Migrate to TypeScript #39468
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mirka
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[Type] Code Quality
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Size Change: +4 B (0%) Total Size: 1.21 MB
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mirka
commented
Mar 15, 2022
| export const WithVisualLabel: ComponentStory< typeof BaseControl > = ( | ||
| props | ||
| ) => { | ||
| BaseControl.VisualLabel.displayName = 'BaseControl.VisualLabel'; |
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Interestingly, when I try to set this display name in the base-control/index.tsx file instead of here, the docgen refuses to extract types from BaseControl 🤷 I don't think we'll run into this problem a lot though. Also I guess it isn't too weird that we're setting the display name here, because it's mainly to make the Storybook code snippet understandable.
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Could this be related to the subcomponents bug that you mentioned before?
the docgen refuses to extract types from
BaseControl
What do you mean by that? I tried to comment this line out but didn't notice any changes in Storybook (although I'm probably missing something)
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Could this be related to the
subcomponentsbug that you mentioned before?
My hunch is that it's more related to the thing where we need to export the component individually as a named export (e.g. here) for the docgen to extract prop types. If you try to change a property on that exported module directly in the same file (e.g. ConnectedHeading.displayName = 'foo'), then the export suddenly stops doing its magic.
🙂 Docgen works as expected
// component.tsx
export const MyComponent = /* ... */;
// consumer.tsx
import { MyComponent } from "./component";
MyComponent.displayName = "Hello";☠️ Docgen ignores my prop types
// component.tsx
export const MyComponent = /* ... */;
MyComponent.displayName = "Hello";I'm not familiar enough with the internals to say why this happens, but to someone who is familiar, I bet the reason is quite obvious!
mirka
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Mar 15, 2022
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mirka
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Mar 18, 2022
ciampo
reviewed
Mar 21, 2022
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Thank you for working on this, @mirka !
I left some comments, but my main piece of feedback is if you have you considered using the WordPressComponentProps type, instead of FunctionComponent ? We tend to use this type for the majority of our TypeScript components.
The new Storybook examples are great!
ciampo
reviewed
Mar 21, 2022
If I understand correctly, this type shouldn't be used if the component isn't forwarding its rest props to the given element type. So like |
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Thanks for the review! All points have been addressed. |
ciampo
approved these changes
Mar 23, 2022
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LGTM 🚀 Feel free to merge once the remaining comments are addressed.
Hopefully we'll be soon able to convert the unit tests to TypeScript too (#39436)!
will imply that all div props are allowed, for example style. And that would be incorrect in this case.
This is indeed a fair point. We can look into migrating to WordPressComponentProps at a later stage if/when needed.
| export const WithVisualLabel: ComponentStory< typeof BaseControl > = ( | ||
| props | ||
| ) => { | ||
| BaseControl.VisualLabel.displayName = 'BaseControl.VisualLabel'; |
There was a problem hiding this comment.
Could this be related to the subcomponents bug that you mentioned before?
the docgen refuses to extract types from
BaseControl
What do you mean by that? I tried to comment this line out but didn't notice any changes in Storybook (although I'm probably missing something)
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Probably related: styleguidist/react-docgen-typescript#339 Noting that I hit an interesting issue where the For context: When the
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This matches the readme and common-sense usage of this component
This reverts commit 6e59dbe480f162683504cdb3c4fa691e6e43d0d6. # Conflicts: # packages/components/src/base-control/types.ts
Without this, the docgen is confused and fails to mark `children` as required
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Part of #35744
What?
Converts the
BaseControlcomponent to TypeScript.Why?
Improves devex and code quality through type safety, IDE type hints, and better Storybook documentation.
How?
Testing Instructions
npm run storybook:devand check the Docs tab forBaseControl. It should be useful and understandable.For easier code review, exclude the commit where I just changed the file extensions.
✅ Tests pass