eslint-plugin-vue
Version:
Official ESLint plugin for Vue.js
112 lines (109 loc) • 3.82 kB
JavaScript
;
const require_runtime = require('../_virtual/_rolldown/runtime.js');
const require_index = require('../utils/index.js');
//#region lib/rules/no-useless-v-bind.js
/**
* @author Yosuke Ota
* See LICENSE file in root directory for full license.
*/
var require_no_useless_v_bind = /* @__PURE__ */ require_runtime.__commonJSMin(((exports, module) => {
const utils = require_index.default;
const DOUBLE_QUOTES_RE = /"/gu;
const SINGLE_QUOTES_RE = /'/gu;
module.exports = {
meta: {
type: "suggestion",
docs: {
description: "disallow unnecessary `v-bind` directives",
categories: void 0,
url: "https://eslint.vuejs.org/rules/no-useless-v-bind.html"
},
fixable: "code",
schema: [{
type: "object",
properties: {
ignoreIncludesComment: { type: "boolean" },
ignoreStringEscape: { type: "boolean" }
},
additionalProperties: false
}],
messages: { unexpected: "Unexpected `v-bind` with a string literal value." }
},
create(context) {
const opts = context.options[0] || {};
const ignoreIncludesComment = opts.ignoreIncludesComment;
const ignoreStringEscape = opts.ignoreStringEscape;
const sourceCode = context.sourceCode;
/**
* Report if the value expression is string literals
* @param {VDirective} node the node to check
*/
function verify(node) {
const { value, key } = node;
if (!value || key.modifiers.length > 0) return;
const { expression } = value;
if (!expression) return;
/** @type {string} */
let strValue;
/** @type {string} */
let rawValue;
if (expression.type === "Literal") {
if (typeof expression.value !== "string") return;
strValue = expression.value;
rawValue = sourceCode.getText(expression).slice(1, -1);
} else if (expression.type === "TemplateLiteral") {
if (expression.expressions.length > 0) return;
strValue = expression.quasis[0].value.cooked;
rawValue = expression.quasis[0].value.raw;
} else return;
const hasComment = sourceCode.parserServices.getTemplateBodyTokenStore().getTokens(value, { includeComments: true }).some((t) => t.type === "Block" || t.type === "Line");
if (ignoreIncludesComment && hasComment) return;
let hasEscape = false;
if (rawValue !== strValue) {
const chars = [...rawValue];
let c = chars.shift();
while (c) {
if (c === "\\") {
c = chars.shift();
if (c == null || "nrvtbfux".includes(c)) {
hasEscape = true;
break;
}
}
c = chars.shift();
}
}
if (ignoreStringEscape && hasEscape) return;
context.report({
node,
messageId: "unexpected",
*fix(fixer) {
if (hasComment || hasEscape) return;
const quoteChar = sourceCode.getText(value)[0];
const shorthand = key.name.rawName === ":";
/** @type {Range} */
const keyDirectiveRange = [key.name.range[0], key.name.range[1] + (shorthand ? 0 : 1)];
yield fixer.removeRange(keyDirectiveRange);
let attrValue;
if (quoteChar === "\"") {
attrValue = strValue.replaceAll(DOUBLE_QUOTES_RE, """);
attrValue = quoteChar + attrValue + quoteChar;
} else if (quoteChar === "'") {
attrValue = strValue.replaceAll(SINGLE_QUOTES_RE, "'");
attrValue = quoteChar + attrValue + quoteChar;
} else attrValue = strValue.replaceAll(DOUBLE_QUOTES_RE, """).replaceAll(SINGLE_QUOTES_RE, "'");
yield fixer.replaceText(value, attrValue);
}
});
}
return utils.defineTemplateBodyVisitor(context, { "VAttribute[directive=true][key.name.name='bind'][key.argument!=null]": verify });
}
};
}));
//#endregion
Object.defineProperty(exports, 'default', {
enumerable: true,
get: function () {
return require_no_useless_v_bind();
}
});