RedundantSetter - Intellij Community

Reports redundant property setters.

Setter is considered to be redundant in one of the following cases:

Setter has no body. Accessor visibility isn't changed, declaration isn't external and has no annotations.

var myPropWithRedundantSetter: Int = 0
      set // redundant

  var myPropA: Int = 0
      private set // OK - property visibility is changed to private

  var myPropB: Int = 0
      external set // OK - implemented not in Kotlin (external)

  var myPropC: Int = 0
      @Inject set // OK - accessor is annotated

Setter body is a block with a single statement assigning the parameter to the backing field.

var prop: Int = 0
      set(value) { // redundant
          field = value
      }