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Boxed properties should be replaced with unboxed

Reports boxed Range.start and Range.endInclusive properties.

These properties can be replaced with unboxed first and last properties to avoid redundant calls.

The quick-fix replaces start and endInclusive properties with the corresponding first and last.


fun foo(range: CharRange) { val lastElement = range.endInclusive }

After the quick-fix is applied:

fun foo(range: CharRange) { val lastElement = range.last }

Locating this inspection


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

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


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