Pattern: Unnecessary use of Unit
Issue: -
It is not necessary to define a return type of Unit on functions or to specify a lone Unit statement. This rule detects and reports instances where the Unit return type is specified on functions and the occurrences of a lone Unit statement.
Example of incorrect code:
fun foo(): Unit {
return Unit
}
fun foo() = Unit
fun doesNothing() {
Unit
}
Example of correct code:
fun foo() { }
// overridden no-op functions are allowed
override fun foo() = Unit