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51 lines
1.3 KiB
51 lines
1.3 KiB
2 months ago
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/**
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* @author Sosuke Suzuki
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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: 'problem',
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docs: {
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description: 'disallow using arrow functions to define watcher',
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categories: ['vue3-essential', 'vue2-essential'],
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url: 'https://eslint.vuejs.org/rules/no-arrow-functions-in-watch.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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noArrowFunctionsInWatch:
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'You should not use an arrow function to define a watcher.'
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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.executeOnVue(context, (obj) => {
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const watchNode = utils.findProperty(obj, 'watch')
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if (watchNode == null) {
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return
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}
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const watchValue = watchNode.value
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if (watchValue.type !== 'ObjectExpression') {
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return
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}
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for (const property of watchValue.properties) {
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if (property.type !== 'Property') {
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continue
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}
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for (const handler of utils.iterateWatchHandlerValues(property)) {
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if (handler.type === 'ArrowFunctionExpression') {
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context.report({
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node: handler,
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messageId: 'noArrowFunctionsInWatch'
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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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}
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