Use destructuring declaration

Reports declarations that can be destructured.

Example:

  data class My(val first: String, val second: Int, val third: Boolean)

  fun foo(list: List<My>) {
      list.forEach { my ->
          println(my.second)
          println(my.third)
      }
  }

The quick-fix destructures the declaration and introduces new variables with names from the corresponding class:

  data class My(val first: String, val second: Int, val third: Boolean)

  fun foo(list: List<My>) {
      list.forEach { (_, second, third) ->
          println(second)
          println(third)
      }
  }

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.

DestructuringDeclaration

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 | Style issues

Inspection ID: DestructuringDeclaration

Inspection options

Here you can find the description of settings available for the Use destructuring declaration inspection, and the reference of their default values.

Report non-parameter cases

Option ID:

reportNonParameterCases

Default value:

Not selected

Suppressing Inspection

You can suppress this inspection by placing the following comment marker before the code fragment where you no longer want messages from this inspection to appear:

//noinspection DestructuringDeclaration

More detailed instructions as well as other ways and options that you have can be found in the product documentation:

IntelliJ IDEA 2026.2

Inspection Details
By default bundled with:	IntelliJ IDEA 2026.2, Qodana for JVM 2026.2,

Last modified: 30 June 2026