vue hello world项目
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3 years ago
/**
* @fileoverview enforce valid `v-is` directives
* @author Yosuke Ota
*/
'use strict'
// ------------------------------------------------------------------------------
// Requirements
// ------------------------------------------------------------------------------
const utils = require('../utils')
// ------------------------------------------------------------------------------
// Helpers
// ------------------------------------------------------------------------------
/**
* Check whether the given node is valid or not.
* @param {VElement} node The element node to check.
* @returns {boolean} `true` if the node is valid.
*/
function isValidElement(node) {
if (
utils.isHtmlElementNode(node) &&
!utils.isHtmlWellKnownElementName(node.rawName)
) {
// Vue-component
return false
}
return true
}
// ------------------------------------------------------------------------------
// Rule Definition
// ------------------------------------------------------------------------------
module.exports = {
meta: {
type: 'problem',
docs: {
description: 'enforce valid `v-is` directives',
categories: ['vue3-essential'],
url: 'https://eslint.vuejs.org/rules/valid-v-is.html'
},
fixable: null,
schema: [],
messages: {
unexpectedArgument: "'v-is' directives require no argument.",
unexpectedModifier: "'v-is' directives require no modifier.",
expectedValue: "'v-is' directives require that attribute value.",
ownerMustBeHTMLElement:
"'v-is' directive must be owned by a native HTML element, but '{{name}}' is not."
}
},
/** @param {RuleContext} context */
create(context) {
return utils.defineTemplateBodyVisitor(context, {
"VAttribute[directive=true][key.name.name='is']"(node) {
if (node.key.argument) {
context.report({
node: node.key.argument,
messageId: 'unexpectedArgument'
})
}
if (node.key.modifiers.length > 0) {
context.report({
node,
loc: {
start: node.key.modifiers[0].loc.start,
end: node.key.modifiers[node.key.modifiers.length - 1].loc.end
},
messageId: 'unexpectedModifier'
})
}
if (!node.value || utils.isEmptyValueDirective(node, context)) {
context.report({
node,
messageId: 'expectedValue'
})
}
const element = node.parent.parent
if (!isValidElement(element)) {
const name = element.name
context.report({
node,
messageId: 'ownerMustBeHTMLElement',
data: { name }
})
}
}
})
}
}