storybook-builder-rsbuild/dist/loaders/export-order-loader.mjs

Rsbuild builder for Storybook

import '../chunk-TTFRSOOU.mjs';
import assert from 'assert';
import { init, parse as parse$1 } from 'cjs-module-lexer';
import { parse } from 'es-module-lexer';
import MagicString from 'magic-string';

async function loader(source, map, meta) {
  const callback = this.async();
  try {
    const magicString = new MagicString(source);
    try {
      const parseResult = await parse(source);
      const namedExportsOrder = (parseResult[1] || []).map((e) => source.substring(e.s, e.e)).filter((e) => e !== "default");
      assert(
        namedExportsOrder.length > 0,
        "No named exports found. Very likely that this is not a ES module."
      );
      magicString.append(
        `;export const __namedExportsOrder = ${JSON.stringify(namedExportsOrder)};`
      );
    } catch {
      await init();
      const namedExportsOrder = (parse$1(source).exports || []).filter(
        (e) => e !== "default" && e !== "__esModule"
      );
      assert(
        namedExportsOrder.length > 0,
        "No named exports found. Very likely that this is not a CJS module."
      );
      magicString.append(
        `;module.exports.__namedExportsOrder = ${JSON.stringify(namedExportsOrder)};`
      );
    }
    return callback(
      null,
      magicString.toString(),
      map ?? magicString.generateMap({
        hires: true,
        includeContent: true,
        source: this.resourcePath
      }),
      meta
    );
  } catch (err) {
    return callback(null, source, map, meta);
  }
}

export { loader as default };