Add components

slider/node_modules/eslint-plugin-vue/lib/rules/no-root-v-if.js

@@ -0,0 +1,48 @@
+/**
+ * @author Perry Song
+ * @copyright 2023 Perry Song. All rights reserved.
+ * See LICENSE file in root directory for full license.
+ */
+'use strict'
+
+const utils = require('../utils')
+
+module.exports = {
+  meta: {
+    type: 'suggestion',
+    docs: {
+      description: 'disallow `v-if` directives on root element',
+      categories: undefined,
+      url: 'https://eslint.vuejs.org/rules/no-root-v-if.html'
+    },
+    fixable: null,
+    schema: [],
+    messages: {
+      noRootVIf: '`v-if` should not be used on root element without `v-else`.'
+    }
+  },
+  /** @param {RuleContext} context */
+  create(context) {
+    return {
+      /** @param {Program} program */
+      Program(program) {
+        const element = program.templateBody
+        if (element == null) {
+          return
+        }
+
+        const rootElements = element.children.filter(utils.isVElement)
+        if (
+          rootElements.length === 1 &&
+          utils.hasDirective(rootElements[0], 'if')
+        ) {
+          context.report({
+            node: element,
+            loc: element.loc,
+            messageId: 'noRootVIf'
+          })
+        }
+      }
+    }
+  }
+}