Some import suggestions from ZIO don't appear

[brndt]

Describe the bug

1. Try to type "IO" or "ULayer" type (as an example) from zio package

2. VS Code doesn't suggest to import these types

Expected behavior

VS Code should suggest to import these types as well as it does for other zio-related stuff

Operating system

macOS

Editor/Extension

VS Code

Version of Metals

v1.2.2

Extra context or search terms

No response

[tgodzik]

Thanks for reporting! Do you perhaps have a snippet that this doesn't work in? That would be super useful. Also, which version of zio you are using just in case

[brndt]

Thanks for reporting! Do you perhaps have a snippet that this doesn't work in? That would be super useful. Also, which version of zio you are using just in case

Try to execute this code in VS Code and you'll see it doesn't suggest to import IO from zio, neither handler from zio-http:
https://scastie.scala-lang.org/vPVpOnCcTBWbG09PR4xmDg

[kasiaMarek]

Currently for library dependencies Metals only suggests auto-imports for class/object/trait, and can't handle methods like handler or type aliases like IO.

[brndt]

I think it would be great to suggest them too.

[tgodzik]

Maybe if we only did it for toplevel object or package objects that would be fine? Though it would be needed to check the implications and whether the indexing wouldn't get much worse.

It's a feature request though at this point, so will open up as a follow up.

[tgodzik]

scalameta/metals-feature-requests#378