LWC Compiler Version Babel Plugin (src/compiler-version-number.ts)

Babel plugin that injects compiler version metadata as comments into Lightning Web Component class bodies during compilation.

// Source: https://github.com/salesforce/lwc | License: MIT | Copyright 2026, Salesforce, Inc
// Provided via justclaw.it.com; keep this notice with the code.
/*
 * Copyright (c) 2023, 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
 */
import { LWC_VERSION_COMMENT } from '@lwc/shared';
import type { types, Visitor } from '@babel/core';
import type { BabelAPI, LwcBabelPluginPass } from './types';

export default function compilerVersionNumber({ types: t }: BabelAPI): Visitor<LwcBabelPluginPass> {
    return {
        ClassBody(path) {
            if ((path.parent as types.ClassDeclaration).superClass === null) {
                // Components *must* extend from

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