Return or assignment can be lifted out

Reports if, when, and try statements that can be converted to expressions by lifting the return statement or an assignment out.

Example:

fun foo(arg: Int): String {
    when (arg) {
        0 -> return "Zero"
        1 -> return "One"
        else -> return "Multiple"
    }
}

After the quick-fix is applied:

fun foo(arg: Int): String {
    return when (arg) {
        0 -> "Zero"
        1 -> "One"
        else -> "Multiple"
    }
}

If you would like this inspection to highlight more complex code with multi-statement branches, uncheck the option "Report only if each branch is a single statement".

Inspection options

Option	Type	Default
Report only if each branch is a single statement	Checkbox	true

Inspection Details
Available in:	IntelliJ IDEA 2023.3, Qodana for JVM 2023.3
Plugin:	Kotlin, @snapshot@

Last modified: 13 July 2023