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