Auto-import suggestions still given for absolute imports without baseUrl #40713

TypeScript Version: 4.1.0-dev.20200921

Search Terms:

auto-import paths, auto-import suggestions without baseUrl

Code

Here is a repo with a reproduction. It's a cut down version of a monorepo I redesigned to use paths (then hit the unfortunate auto-import behavior pre-4.1).

https://github.com/jakebailey/ts-41-autoimport-paths

The main file to look at is https://github.com/jakebailey/ts-41-autoimport-paths/blob/master/packages/test-package-1/src/something/index.ts where I've described the different behaviors.

Expected behavior:

When no baseUrl is specified, auto-import suggestions should not be offered for paths like src/foo/bar if they aren't valid. This should work as a result of #40546 and associated changes, and is mentioned in the TS 4.1 beta blog post. In this example, I expect there to be no absolute import because baseUrl is missing, no absolute import via paths as I have not defined one for the current package, leaving me with a relative path suggestion (what I want for consistency with the codebase).

Actual behavior:

These suggestions are still offered. When accepted, TS immediately marks the import as invalid.

Playground Link:

I'm not sure the playground would allow me to have multiple files, hence the repro repo.

Related Issues:

#31869 is related, but I believe my issue to be a bug in that implementation.

cc Andrew Branch (@andrewbranch)