net6.0-android generated sources StyleCop error #7698

Issue moved from dotnet/maui#12638

• Please respond to @dude3133.

From @dude3133 on Friday, January 13, 2023 3:25:04 PM

Description

Using StyleCop with rules Action="Error" produce unexpected compile errors from autogenerated code and used libraries
For example:
Using StyleCop.Analyzers.ruleset with:
<Rule Id="SA1505" Action="Error" />
Produces errors:

/Droid/obj/Debug/net6.0-android/generated/src/Java.Interop.__TypeRegistrations.cs(24,24): Error SA1505: An opening brace should not be followed by a blank line (SA1505)
/Droid/obj/Debug/net6.0-android/generated/src/Com.Android.Installreferrer.Commons.InstallReferrerCommons.cs(47,47): Error SA1505: An opening brace should not be followed by a blank line (SA1505)

StyleCop provide option with ignoring all errors and warnings using // <auto-generated/> comment. And I found one ticket that refers their logic to avoid generated code: DotNetAnalyzers/StyleCopAnalyzers#1430
Could we somehow add // <auto-generated/> comment for all generated code under obj/ folder?

Steps to Reproduce

1. Create any net6-android project
2. Add SonarCop with more rules (like SA1505, SA1507) as Error
3. Try to build

Link to public reproduction project repository

Version with bug

6.0.312

Last version that worked well

6.0.312

Affected platforms

Android

Affected platform versions

Android Any

Did you find any workaround?

Remove SonarCop? Live without clean code? Nope

Relevant log output

No response