Hover ignores the JSDoc written on an import f = a.f alias #64655

🔎 Search Terms

jsdoc alias hover, export import jsdoc, quick info alias documentation

🕗 Version & Regression Information

Present in every build of the native port that can show JSDoc on hover, from 7.0.0-dev.20250607.1 (the first one that does) through 7.0.2 and 7.1.0-dev.20261005.1. 6.0.3 shows the alias's comment.

⏯ Playground Link

No response

💻 Code

declare namespace a {
  /** on the declaration */
  export function f(): void;
}

declare namespace b {
  /** on the alias */
  export import f = a.f;
}

b.f;

1. Put that in a .ts file.
2. Hover f on the last line.
3. Type b. on a new line and look at f in the completion list.

🙁 Actual behavior

Both show "on the declaration". With the comment removed from a.f, both show nothing.

🙂 Expected behavior

Both show "on the alias", as 6.0.3 does. The comment on the declaration should only be used when the alias has none.

Additional information about the issue

No response