`AutoPath` doesn't error on non-existent property

[nkalpak]

🐞 Bug Report

Describe the bug

The documentation for AutoPath provides two use-cases that should work, and two that should error. The two use-cases that should produce a type error, don't do so.

I have also tried passing a completely bogus, non-dotted path (line 35 in the sandbox), and there is no error produced (is this working as intended? should AutoPath only work with dotted paths?).

Reproduce the bug

https://codesandbox.io/s/peaceful-leftpad-lbwbg?file=/src/index.ts

Check lines 31, 32, 35

Expected behavior

AutoPath should produce a type error

[millsp]

Thanks for reporting this. I should add a check on undefined values.

[jessetabak]

Actually, if you rollback to version 9.3.10 it works as expected. (You can check it in the codesandbox from above)

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[OmgImAlexis]

Bad bot.

[omerman]

This is a duplication for https://github.com/millsp/ts-toolbelt/issues/276 If you will change the User type name field to be number, like such:

https://codesandbox.io/s/practical-wildflower-8uegn?file=/src/index.ts

It will work properly.