S1172 (kotlin) not matching unused parameter in public function of class

SonarQube for IDE IntelliJ Platform
, ,
1

I have a question regarding the kotlin implementation of S1172 (Unused function parameters should be removed):
Is it intentionally that public functions of classes do NOT raise an issue for unused parameters? (neither SonarLint nor SonarQube are raising issues)
if it is intentionally: should the documentation be adapted?

Or is this a bug?

fun nonClassFunction(unusedParam: String): String { // raises issue
  return "value"
}

class UnusedFunctionsInClass {
  private fun privateFunction(unusedParam: String): String { // raises issue
    return "value"
  }

  fun publicFunction(unusedParam: String): String { // DOES NOT RAISE ISSUE
    return "value"
  }
}

Environment

  • Operating system: Windows 10
  • SonarLint plugin version: org.sonarlint.idea (10.8.1.79205)
  • IntelliJ version:IntelliJ IDEA 2024.2.0.2 (Ultimate Edition)
  • Programming language you’re coding in: JDK: 21 ; Kotlin: 2.0.20
  • Is connected mode used: yes
    • Connected to SonarCloud or SonarQube (and which version): SonarQube: Community EditionVersion 10.3 (build 82913)
4

Hi @HolgerSeith,

Thank you for reporting!
This is indeed not intentional.
I created a ticket to fix this false negative, and here it is to track the progress made: [SONARKT-395] - Jira.

All the best,

Irina