Bug Report

Auto import not working as expected for modules that use the exports field and type: module in package.json.

Relevant PR that introduced exports support: #44501

🕗 Version & Regression Information

Occurs in 4.5.0-dev.20211012 and 4.5.0-beta.

⏯ Playground Link

It's a bit hard to reproduce in the playground, so I've created a repository here https://github.com/renke/typescript-4.5-beta-exports – The README contains some instructions on how to reproduce it. It also describes another bug that was already filed here #46333 so it can probably be ignored.

🙁 Actual behavior

Auto import doesn't work for non-root exported modules (unless they are already imported elsewhere).

Also, ./* exports can not be imported at all.

Running the modules via node works, so the exports configuration should be valid.

🙂 Expected behavior

Auto import should work for all modules explicitly exported via exports when the exporting package is listed in dependencies (as in #38923).

Also, import (and auto import) should work for ./* exports. Unclear if this would lead to performance problems for auto import, but I think this should be supported.