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Can be replaced with lambda

Reports a function reference expression that can be replaced with a function literal (lambda).

Sometimes, passing a lambda looks more straightforward and more consistent with the rest of the code. Also, the fix might be handy if you need to replace a simple call with something more complex.

Example:

fun Int.isEven() = this % 2 == 0 fun example() { val numbers = listOf(1, 2, 4, 7, 9, 10) val evenNumbers = numbers.filter(Int::isEven) }

After the quick-fix is applied:

fun Int.isEven() = this % 2 == 0 fun example() { val numbers = listOf(1, 2, 4, 7, 9, 10) val evenNumbers = numbers.filter { it.isEven() } }

Inspection Details

By default bundled with:

IntelliJ IDEA 2024.1, Qodana for JVM 2024.1,

Can be installed with plugin:

Kotlin, 241.16690-IJ

Last modified: 29 April 2024