eslint-plugin-vue
Version:
Official ESLint plugin for Vue.js
81 lines (80 loc) • 2.42 kB
JavaScript
;
const require_runtime = require("../_virtual/_rolldown/runtime.js");
const require_index = require("../utils/index.js");
//#region lib/rules/no-useless-template-attributes.js
/**
* @author Yosuke Ota
* See LICENSE file in root directory for full license.
*/
var require_no_useless_template_attributes = /* @__PURE__ */ require_runtime.__commonJSMin(((exports, module) => {
const utils = require_index.default;
const SPECIAL_TEMPLATE_DIRECTIVES = /* @__PURE__ */ new Set([
"if",
"else",
"else-if",
"for",
"slot"
]);
/**
* @param {VAttribute | VDirective} attr
*/
function getKeyName(attr) {
if (attr.directive) {
if (attr.key.name.name !== "bind") return null;
if (!attr.key.argument || attr.key.argument.type === "VExpressionContainer") return null;
return attr.key.argument.name;
}
return attr.key.name;
}
/**
* @param {VAttribute | VDirective} attr
*/
function isFragmentTemplateAttribute(attr) {
if (attr.directive) {
const directiveName = attr.key.name.name;
if (SPECIAL_TEMPLATE_DIRECTIVES.has(directiveName)) return true;
if (directiveName === "slot-scope") return true;
if (directiveName === "scope") return true;
}
return getKeyName(attr) === "slot";
}
module.exports = {
meta: {
type: "problem",
docs: {
description: "disallow useless attribute on `<template>`",
categories: ["vue3-essential", "vue2-essential"],
url: "https://eslint.vuejs.org/rules/no-useless-template-attributes.html"
},
fixable: null,
schema: [],
messages: {
unexpectedAttr: "Unexpected useless attribute on `<template>`.",
unexpectedDir: "Unexpected useless directive on `<template>`."
}
},
/** @param {RuleContext} context */
create(context) {
return utils.defineTemplateBodyVisitor(context, {
/** @param {VStartTag} node */
"VElement[name='template'][parent.type='VElement'] > VStartTag"(node) {
if (!node.attributes.some(isFragmentTemplateAttribute)) return;
for (const attr of node.attributes) {
if (isFragmentTemplateAttribute(attr)) continue;
if (getKeyName(attr) === "key") continue;
context.report({
node: attr,
messageId: attr.directive ? "unexpectedDir" : "unexpectedAttr"
});
}
} });
}
};
}));
//#endregion
Object.defineProperty(exports, "default", {
enumerable: true,
get: function() {
return require_no_useless_template_attributes();
}
});