JSDoc disappears after compilation

[xiaoxiangmoe]

Bug Report

🔎 Search Terms

JSDoc

🕗 Version & Regression Information

typescript version 4.7.0-dev.20220316

💻 Code

// file: src/symbol.ts
export const sym1 = Symbol()
export const sym2 = Symbol()

// file: src/export.ts

import { sym1, sym2 } from './symbol';

/** # Comments for namedExport */
export const namedExport = [sym1] as const;

/** # Comments for defaultExport */
export default [sym2] as const;

// file: src/import.ts
import defaultExport, { namedExport } from './export';

export { defaultExport, namedExport };

In ts source code, it works well.

---

If I build it by tsc:

// file: types/symbol.d.ts
export declare const sym1: unique symbol;
export declare const sym2: unique symbol;

// file: types/export.d.ts
import { sym1, sym2 } from './symbol';
/** # Comments for namedExport */
export declare const namedExport: readonly [typeof sym1];
declare const _default: readonly [typeof sym2];
/** # Comments for defaultExport */
export default _default;

// file: types/import.d.ts
import defaultExport, { namedExport } from './export';
export { defaultExport, namedExport };

JSDoc of defaultExport disappeared.

---

This feature is import for vue users. Because most of .vue file use export default defineComponent({});.