@lwc/eslint-plugin-lwc/lib/rules/no-async-await.js

Official ESLint rules for LWC

/*
 * Copyright (c) 2018, salesforce.com, inc.
 * All rights reserved.
 * SPDX-License-Identifier: MIT
 * For full license text, see the LICENSE file in the repo root or https://opensource.org/licenses/MIT
 */
'use strict';

const { docUrl } = require('../util/doc-url');

module.exports = {
    meta: {
        docs: {
            description: 'disallow usage of the async-await syntax',
            category: 'LWC',
            url: docUrl('no-async-await'),
        },
        schema: [],
    },

    create(context) {
        const reportAsyncAwait = (node) => {
            if (node.async) {
                context.report({
                    node,
                    message: 'Invalid usage of async-await.',
                });
            }
        };

        return {
            FunctionDeclaration: reportAsyncAwait,
            FunctionExpression: reportAsyncAwait,
            ArrowFunctionExpression: reportAsyncAwait,
        };
    },
};