/**
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* @fileoverview enforce valid `v-is` directives
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* @author Yosuke Ota
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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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// Helpers
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// ------------------------------------------------------------------------------
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/**
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* Check whether the given node is valid or not.
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* @param {VElement} node The element node to check.
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* @returns {boolean} `true` if the node is valid.
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*/
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function isValidElement(node) {
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if (
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utils.isHtmlElementNode(node) &&
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!utils.isHtmlWellKnownElementName(node.rawName)
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) {
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// Vue-component
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return false
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}
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return true
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}
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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: 'enforce valid `v-is` directives',
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categories: ['vue3-essential'],
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url: 'https://eslint.vuejs.org/rules/valid-v-is.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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unexpectedArgument: "'v-is' directives require no argument.",
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unexpectedModifier: "'v-is' directives require no modifier.",
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expectedValue: "'v-is' directives require that attribute value.",
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ownerMustBeHTMLElement:
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"'v-is' directive must be owned by a native HTML element, but '{{name}}' is not."
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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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"VAttribute[directive=true][key.name.name='is']"(node) {
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if (node.key.argument) {
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context.report({
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node,
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loc: node.loc,
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messageId: 'unexpectedArgument'
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})
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}
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if (node.key.modifiers.length > 0) {
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context.report({
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node,
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loc: node.loc,
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messageId: 'unexpectedModifier'
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})
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}
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if (!node.value || utils.isEmptyValueDirective(node, context)) {
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context.report({
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node,
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loc: node.loc,
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messageId: 'expectedValue'
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})
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}
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const element = node.parent.parent
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if (!isValidElement(element)) {
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const name = element.name
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context.report({
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node,
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loc: node.loc,
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messageId: 'ownerMustBeHTMLElement',
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data: { name }
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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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