Function with '= { ... }' and inferred return type

Last modified: 03 December 2024

Reports functions with = { ... } and inferred return type.

Example:

fun sum(a: Int, b: Int) = { a + b } // The return type of this function is '() -> Int'.

The quick fix removes braces:

fun sum(a: Int, b: Int) = a + b

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.

FunctionWithLambdaExpressionBody
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 Details

By default bundled with:

IntelliJ IDEA 2024.3, Qodana for JVM 2024.3,

Can be installed with plugin:

Kotlin, 243.23126-IJ