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⭐️New: Add vue/no-deprecated-slot-attribute rule #839

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ota-meshi merged 5 commits into master from add-rule/no-deprecated-slot-attribute
Dec 26, 2019

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@ota-meshi ota-meshi commented Feb 28, 2019

vue/no-deprecated-slot-attribute rule reports deprecated slot attribute in Vue.js v2.6.0+.

<template>
 <ListComponent>
 <!-- ✓ GOOD -->
 <template v-slot:name>
 {{ props.title }}
 </template>
 </ListComponent>
 <ListComponent>
 <!-- ✗ BAD -->
 <template slot="name">
 {{ props.title }}
 </template>
 </ListComponent>
</template>

refs #800 (comment)

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@mysticatea mysticatea left a comment

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Thank you for this rule!

Almost LGTM, but I have a few suggestions.

- Changed to check `v-bind:slot`.
- Changed not to autofix, if it becomes an invalid attribute name after autofix.
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Thank you for your review!
I changed this. please check again.

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LGTM, thank you!

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@mysticatea mysticatea left a comment

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I'm sorry, I had overlooked this in the previous review.

output: `
<template>
<LinkList>
<a v-slot:name />
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@mysticatea mysticatea Mar 4, 2019

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Hmm, sorry, I had overlooked this in the previous review.

In some cases, slot and v-slot should be in different places.

  • v-slot must be on a <template> element which is a direct child of a custom element.
  • v-slot for the default slot can be on a custom element directly if there are no named slots.

So in this case, the <a> element must be wrapped by a <template> element.

In the example of nested default slots, it will be moved to the parent element.

Therefore, autofix may be tough to implement... 🤔

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@ota-meshi ota-meshi Apr 2, 2019

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Sorry for the late reply.
Thank you for pointing this out.

Sorry, I did not understand v-slot correctly.
I will change it so that it will only autofix if slot is attached to <template>.

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@mysticatea mysticatea Awaiting requested review from mysticatea

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