Function expectExports

yarn.config.cjs:210–222

* Expect that the workspace has a valid `exports` field. The `exports` field * is expected to: * * - Export a `types` entrypoint as the first export, or not at all. * * This is required for proper TypeScript support when using `Node16` (or later) * module resolution. * * @param {Workspace} w

(workspace)

 * @returns {void}
 */
function expectExports(workspace) {
  const { exports: manifestExports } = workspace.manifest;
  Object.entries(manifestExports)
    .filter(([, exportValue]) => typeof exportValue !== 'string')
    .forEach(([exportName, exportObject]) => {
      const keys = Object.keys(exportObject);
      if (keys.includes('types') && keys[0] !== 'types') {
        workspace.error(
          `The "types" export must be the first export in the "exports" field for the export "${exportName}".`,
        );
      }
    });
}

module.exports = defineConfig({
  async constraints({ Yarn }) {