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70 lines
2.0 KiB
70 lines
2.0 KiB
3 years ago
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/**
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* @fileoverview disallow using deprecated events api
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* @author yoyo930021
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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 using deprecated events api (in Vue.js 3.0.0+)',
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categories: ['vue3-essential'],
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url: 'https://eslint.vuejs.org/rules/no-deprecated-events-api.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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noDeprecatedEventsApi:
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'The Events api `$on`, `$off` `$once` is deprecated. Using external library instead, for example mitt.'
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}
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},
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/** @param {RuleContext} context */
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create(context) {
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return utils.defineVueVisitor(context, {
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/** @param {MemberExpression & ({parent: CallExpression} | {parent: ChainExpression & {parent: CallExpression}})} node */
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'CallExpression > MemberExpression, CallExpression > ChainExpression > MemberExpression'(
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node
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) {
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const call =
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node.parent.type === 'ChainExpression'
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? node.parent.parent
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: node.parent
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if (call.optional) {
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// It is OK because checking whether it is deprecated.
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// e.g. `this.$on?.()`
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return
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}
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if (
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utils.skipChainExpression(call.callee) !== node ||
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!['$on', '$off', '$once'].includes(
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utils.getStaticPropertyName(node) || ''
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)
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) {
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return
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}
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if (!utils.isThis(node.object, context)) {
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return
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}
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context.report({
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node: node.property,
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messageId: 'noDeprecatedEventsApi'
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})
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}
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})
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}
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}
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