Unable to resolve `./foo.ts` to `./foo.d.ts` since 3.9.0

[silverwind]

I've dug deeper into un-ts/eslint-plugin-import-x#265 and have found the actual cause which is from this module and/or oxc-resolver/unrs-resolver.

Last good version: 3.8.7
First bad version: 3.9.0

Reproduction:

git clone https://github.com/silverwind/resolver-bug && cd resolver-bug
npm i eslint-import-resolver-typescript@3.9.0
npx eslint index.js # fails with "error  foo not found in 'mod'  import-x/named"
npm i eslint-import-resolver-typescript@3.8.7
npx eslint index.js # works without error

The problem is that dist/index.d.ts refers a non-existant dist/foo.ts. dist/foo.d.ts exists and it seems 3.8.7 and earlier used it.

If possible I'd request for that behaviour to be restored because I can't seem to get my d.ts generation to fix this without having to do (expensive) type definition bundling.

[silverwind]

Specifically, I think typescript's File extension substitution may be at least partially be absent in unrs-resolver, but probably was present in enhanced-resolve.

[JounQin]

Thanks for reproduction! I'll take a look later, or PR welcome!

[JounQin]

I can reproduce it with the latest version of unrs-resolver, it's a bug from there: unrs/unrs-resolver#76, see #442.

[silverwind]

Thanks, can confirm this is working in both the reproduction repo and my real cases.