forked from zhurui/management
64 lines
2.0 KiB
JavaScript
64 lines
2.0 KiB
JavaScript
/**
|
|
* @author Toru Nagashima
|
|
* @copyright 2017 Toru Nagashima. All rights reserved.
|
|
* See LICENSE file in root directory for full license.
|
|
*/
|
|
'use strict'
|
|
|
|
// ------------------------------------------------------------------------------
|
|
// Requirements
|
|
// ------------------------------------------------------------------------------
|
|
|
|
const utils = require('../utils')
|
|
|
|
// ------------------------------------------------------------------------------
|
|
// Helpers
|
|
// ------------------------------------------------------------------------------
|
|
|
|
/**
|
|
* Check whether the given `v-if` node is using the variable which is defined by the `v-for` directive.
|
|
* @param {ASTNode} vIf The `v-if` attribute node to check.
|
|
* @returns {boolean} `true` if the `v-if` is using the variable which is defined by the `v-for` directive.
|
|
*/
|
|
function isUsingIterationVar (vIf) {
|
|
const element = vIf.parent.parent
|
|
return vIf.value.references.some(reference =>
|
|
element.variables.some(variable =>
|
|
variable.id.name === reference.id.name &&
|
|
variable.kind === 'v-for'
|
|
)
|
|
)
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------
|
|
// Rule Definition
|
|
// ------------------------------------------------------------------------------
|
|
|
|
module.exports = {
|
|
meta: {
|
|
docs: {
|
|
description: 'disallow confusing `v-for` and `v-if` on the same element',
|
|
category: 'recommended',
|
|
url: 'https://github.com/vuejs/eslint-plugin-vue/blob/v4.7.1/docs/rules/no-confusing-v-for-v-if.md'
|
|
},
|
|
fixable: null,
|
|
schema: []
|
|
},
|
|
|
|
create (context) {
|
|
return utils.defineTemplateBodyVisitor(context, {
|
|
"VAttribute[directive=true][key.name='if']" (node) {
|
|
const element = node.parent.parent
|
|
|
|
if (utils.hasDirective(element, 'for') && !isUsingIterationVar(node)) {
|
|
context.report({
|
|
node,
|
|
loc: node.loc,
|
|
message: "This 'v-if' should be moved to the wrapper element."
|
|
})
|
|
}
|
|
}
|
|
})
|
|
}
|
|
}
|