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- /**
- * @fileoverview Enforces render function to always return value.
- * @author Armano
- */
- 'use strict'
- const utils = require('../utils')
- // ------------------------------------------------------------------------------
- // Rule Definition
- // ------------------------------------------------------------------------------
- module.exports = {
- meta: {
- type: 'problem',
- docs: {
- description: 'enforce render function to always return value',
- categories: ['vue3-essential', 'essential'],
- url: 'https://eslint.vuejs.org/rules/require-render-return.html'
- },
- fixable: null, // or "code" or "whitespace"
- schema: []
- },
- /** @param {RuleContext} context */
- create(context) {
- /** @type {Map<ESNode, Property['key']>} */
- const renderFunctions = new Map()
- // ----------------------------------------------------------------------
- // Public
- // ----------------------------------------------------------------------
- return utils.compositingVisitors(
- utils.defineVueVisitor(context, {
- onRenderFunctionEnter(node) {
- renderFunctions.set(node.parent.value, node.parent.key)
- }
- }),
- utils.executeOnFunctionsWithoutReturn(true, (node) => {
- const key = renderFunctions.get(node)
- if (key) {
- context.report({
- node: key,
- message: 'Expected to return a value in render function.'
- })
- }
- })
- )
- }
- }
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