Redundant qualifier name

Reports redundant qualifiers (or their parts) on class names, functions, and properties.

A fully qualified name is an unambiguous identifier that specifies which object, function, or property a call refers to. In the contexts where the name can be shortened, the inspection informs on the opportunity and the associated 'Remove redundant qualifier name' quick-fix allows amending the code.

Examples:

  package my.simple.name
  import kotlin.Int.Companion.MAX_VALUE

  class Foo

  fun main() {
      val a = my.simple.name.Foo()    // 'Foo' resides in the declared 'my.simple.name' package, qualifier is redundant
      val b = kotlin.Int.MAX_VALUE    // Can be replaced with 'MAX_VALUE' since it's imported
      val c = kotlin.Double.MAX_VALUE // Can be replaced with 'Double.MAX_VALUE' since built-in types are imported automatically
  }

After the quick-fix is applied:

  package my.simple.name
  import kotlin.Int.Companion.MAX_VALUE

  class Foo

  fun main() {
      val a = Foo()
      val b = MAX_VALUE
      val c = Double.MAX_VALUE
  }

Locating this inspection

By ID

Can be used to locate inspection in e.g. Qodana configuration files, where you can quickly enable or disable it, or adjust its settings.

RemoveRedundantQualifierName

Via Settings dialog

Path to the inspection settings via IntelliJ Platform IDE Settings dialog, when you need to adjust inspection settings directly from your IDE.

Settings or Preferences | Editor | Inspections | Kotlin | Redundant constructs

Inspection options

Here you can find the description of settings available for the Redundant qualifier name inspection, and the reference of their default values.

Unnecessary non-direct parent classes qualifiers: Not selected

Availability

By default bundled with: IntelliJ IDEA 2024.1, Qodana for JVM 2024.1,
Can be installed with plugin: Kotlin, 241.18072-IJ

Last modified: 18 June 2024