Generated code detection when done by a build plugin.

[carlynorama]

Is your feature request related to a problem? Please describe.
When I run a build plug in using swift run in the integrated terminal (my usual process) and it puts that code in the standard context.pluginWorkDirectory in the .build folder it would be nice if the ["cannot find $MYNEWTHING in scope" sourcekitd ] error didn't pop up. Even lovelier would be auto completion.

• Editing the file does not change the message.

• Reopening the window does not change the message.

• Giving it some time does not help.

• Quiting and reloading VScode does not help.

• VSCode Version: 1.85.2 (Universal), Commit: 8b3775030ed1a69b13e4f4c628c612102e30a681

• Swift for Visual Studio Code v1.7.2

Demo project(s):

• https://github.com/carlynorama/BuildPluginExample/ (the build plugin)
• https://github.com/carlynorama/BuildPluginExampleTarget/ (the CLI)

Describe the solution you'd like
Instead, I'd like those symbols to be available without having to figure out a VScode setting.

Describe alternatives you've considered
Using Xcode for all dev work with package build plugins and keeping VScode for Linux testing only. Trying to figure out if there is a settings.json / launch.json / tasks.json thing I should be trying.

Additional context
I suspect my other issues with build plugins & VSCode will be fixed in 5.10, perhaps this is a new feature already!

• Rebuild times consistently take quite long in Build Task #625
• https://github.com/apple/swift-package-manager/blob/0416a2805df975018bda111606fab1f736e8e2db/Sources/Basics/EnvironmentVariables.swift

[carlynorama]

Sorry, this may be this

• Source generated by build plugin is ignored sourcekit-lsp#665 and
• Add ability to get compiler arguments for files generated by build plugin without running build plugin swift-package-manager#6700

[carlynorama]

Yes this is already tracked.

https://forums.swift.org/t/vscode-doesnt-seem-to-find-generated-code/64278
VSCode Swift Extension Requirements (view)