Bug Report

🔎 Search Terms

"Return type annotation circularly references itself"

🕗 Version & Regression Information

The code works in 4.6.4 and stopped working when attempting to upgrade to 4.7+. I also verified the issue still appears in 4.8.X

• This changed between versions 4.6.4 and 4.7

⏯ Playground Link

https://github.com/davidmdm/myzod

Issue has been reported with davidmdm/myzod#52

Note that I am not the author of the linked library but rather a user. The author appears to be busy at the moment, so I was creating this ticket to see if the problem was a potential regression on the TypeScript side that could be fixed here instead if that is indeed the root cause.

💻 Code

https://github.com/davidmdm/myzod/blob/master/src/types.ts

🙁 Actual behavior

The code fails with the following errors

node_modules/myzod/libs/types.d.ts:256:40 - error TS2577: Return type annotation circularly references itself.

256     and<K extends AnyType>(schema: K): IntersectionResult<this, K>;
                                           ~~~~~~~~~~~~~~~~~~~~~~~~~~~

node_modules/myzod/libs/types.d.ts:306:40 - error TS2577: Return type annotation circularly references itself.

306     and<K extends AnyType>(schema: K): IntersectionResult<this, K>;

🙂 Expected behavior

The code compiles successfully.