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58 lines
1.7 KiB
58 lines
1.7 KiB
3 years ago
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/**
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* @author Toru Nagashima
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* @copyright 2016 Toru Nagashima. 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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// ------------------------------------------------------------------------------
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// Requirements
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// ------------------------------------------------------------------------------
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const utils = require('../utils')
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// ------------------------------------------------------------------------------
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// Rule Definition
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// ------------------------------------------------------------------------------
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module.exports = {
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meta: {
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type: 'problem',
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docs: {
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description: 'disallow `key` attribute on `<template>`',
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categories: ['vue3-essential', 'essential'],
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url: 'https://eslint.vuejs.org/rules/no-template-key.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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disallow:
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"'<template>' cannot be keyed. Place the key on real elements instead."
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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 utils.defineTemplateBodyVisitor(context, {
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/** @param {VElement} node */
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"VElement[name='template']"(node) {
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const keyNode =
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utils.getAttribute(node, 'key') ||
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utils.getDirective(node, 'bind', 'key')
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if (keyNode) {
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if (utils.hasDirective(node, 'for')) {
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// It's valid for Vue.js 3.x.
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// <template v-for="item in list" :key="item.id"> ... </template>
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// see https://github.com/vuejs/vue-next/issues/1734
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return
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}
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context.report({
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node: keyNode,
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loc: keyNode.loc,
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messageId: 'disallow'
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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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