Add vue/no-deprecated-dollar-scopedslots-api rule.

docs/rules/README.md

@@ -43,6 +43,7 @@ Enforce all the rules in this category, as well as all higher priority rules, wi
 | [vue/no-async-in-computed-properties](./no-async-in-computed-properties.md) | disallow asynchronous actions in computed properties | |
 | [vue/no-deprecated-data-object-declaration](./no-deprecated-data-object-declaration.md) | disallow using deprecated object declaration on data (in Vue.js 3.0.0+) | :wrench: |
 | [vue/no-deprecated-dollar-listeners-api](./no-deprecated-dollar-listeners-api.md) | disallow using deprecated `$listeners` (in Vue.js 3.0.0+) | |
+| [vue/no-deprecated-dollar-scopedslots-api](./no-deprecated-dollar-scopedslots-api.md) | disallow using deprecated `$scopedSlots` (in Vue.js 3.0.0+) | :wrench: |
 | [vue/no-deprecated-events-api](./no-deprecated-events-api.md) | disallow using deprecated events api (in Vue.js 3.0.0+) | |
 | [vue/no-deprecated-filter](./no-deprecated-filter.md) | disallow using deprecated filters syntax (in Vue.js 3.0.0+) | |
 | [vue/no-deprecated-functional-template](./no-deprecated-functional-template.md) | disallow using deprecated the `functional` template (in Vue.js 3.0.0+) | |

docs/rules/no-deprecated-dollar-scopedslots-api.md

@@ -0,0 +1,47 @@
+---
+pageClass: rule-details
+sidebarDepth: 0
+title: vue/no-deprecated-dollar-scopedslots-api
+description: disallow using deprecated `$scopedSlots` (in Vue.js 3.0.0+)
+---
+# vue/no-deprecated-dollar-scopedslots-api
+> disallow using deprecated `$scopedSlots` (in Vue.js 3.0.0+)
+
+- :gear: This rule is included in all of `"plugin:vue/vue3-essential"`, `"plugin:vue/vue3-strongly-recommended"` and `"plugin:vue/vue3-recommended"`.
+- :wrench: The `--fix` option on the [command line](https://eslint.org/docs/user-guide/command-line-interface#fixing-problems) can automatically fix some of the problems reported by this rule.
+
+## :book: Rule Details
+
+This rule reports use of deprecated `$scopedSlots`. (in Vue.js 3.0.0+).
+
+<eslint-code-block fix :rules="{'vue/no-deprecated-dollar-scopedslots-api': ['error']}">
+
+```vue
+<template>
+ <!-- ✗ BAD -->
+ <div v-if="$scopedSlots.default"><slot /></div>
+</template>
+<script>
+export default {
+ render() {
+ /* ✗ BAD */
+ return this.$scopedSlots.default()
+ }
+}
+</script>
+```
+
+</eslint-code-block>
+
+## :wrench: Options
+
+Nothing.
+
+## :books: Further reading
+
+- [Vue RFCs - 0006-slots-unification](https://github.com/vuejs/rfcs/blob/master/active-rfcs/0006-slots-unification.md)
+
+## :mag: Implementation
+
+- [Rule source](https://github.com/vuejs/eslint-plugin-vue/blob/master/lib/rules/no-deprecated-dollar-scopedslots-api.js)
+- [Test source](https://github.com/vuejs/eslint-plugin-vue/blob/master/tests/lib/rules/no-deprecated-dollar-scopedslots-api.js)

lib/configs/vue3-essential.js

@@ -11,6 +11,7 @@ module.exports = {
  'vue/no-async-in-computed-properties': 'error',
  'vue/no-deprecated-data-object-declaration': 'error',
  'vue/no-deprecated-dollar-listeners-api': 'error',
+ 'vue/no-deprecated-dollar-scopedslots-api': 'error',
  'vue/no-deprecated-events-api': 'error',
  'vue/no-deprecated-filter': 'error',
  'vue/no-deprecated-functional-template': 'error',

lib/index.js

@@ -50,6 +50,7 @@ module.exports = {
  'no-custom-modifiers-on-v-model': require('./rules/no-custom-modifiers-on-v-model'),
  'no-deprecated-data-object-declaration': require('./rules/no-deprecated-data-object-declaration'),
  'no-deprecated-dollar-listeners-api': require('./rules/no-deprecated-dollar-listeners-api'),
+ 'no-deprecated-dollar-scopedslots-api': require('./rules/no-deprecated-dollar-scopedslots-api'),
  'no-deprecated-events-api': require('./rules/no-deprecated-events-api'),
  'no-deprecated-filter': require('./rules/no-deprecated-filter'),
  'no-deprecated-functional-template': require('./rules/no-deprecated-functional-template'),

lib/rules/no-deprecated-dollar-scopedslots-api.js

@@ -0,0 +1,79 @@
+/**
+ * @author Yosuke Ota
+ * See LICENSE file in root directory for full license.
+ */
+'use strict'
+
+// ------------------------------------------------------------------------------
+// Requirements
+// ------------------------------------------------------------------------------
+
+const utils = require('../utils')
+
+// ------------------------------------------------------------------------------
+// Rule Definition
+// ------------------------------------------------------------------------------
+
+module.exports = {
+ meta: {
+ type: 'problem',
+ docs: {
+ description:
+ 'disallow using deprecated `$scopedSlots` (in Vue.js 3.0.0+)',
+ categories: ['vue3-essential'],
+ url:
+ 'https://eslint.vuejs.org/rules/no-deprecated-dollar-scopedslots-api.html'
+ },
+ fixable: 'code',
+ schema: [],
+ messages: {
+ deprecated: 'The `$scopedSlots` is deprecated.'
+ }
+ },
+
+ create(context) {
+ return utils.defineTemplateBodyVisitor(
+ context,
+ {
+ VExpressionContainer(node) {
+ for (const reference of node.references) {
+ if (reference.variable != null) {
+ // Not vm reference
+ continue
+ }
+ if (reference.id.name === '$scopedSlots') {
+ context.report({
+ node: reference.id,
+ messageId: 'deprecated',
+ fix(fixer) {
+ return fixer.replaceText(reference.id, '$slots')
+ }
+ })
+ }
+ }
+ }
+ },
+ utils.defineVueVisitor(context, {
+ MemberExpression(node) {
+ if (
+ node.property.type !== 'Identifier' ||
+ node.property.name !== '$scopedSlots'
+ ) {
+ return
+ }
+ if (!utils.isThis(node.object, context)) {
+ return
+ }
+
+ context.report({
+ node: node.property,
+ messageId: 'deprecated',
+ fix(fixer) {
+ return fixer.replaceText(node.property, '$slots')
+ }
+ })
+ }
+ })
+ )
+ }
+}