Redundant Void Return

Returning Void in a function declaration is redundant

• Identifier: redundant_void_return
• Enabled by default: Yes
• Supports autocorrection: Yes
• Kind: idiomatic
• Analyzer rule: No
• Minimum Swift compiler version: 5.0.0
• Default configuration:

  Key	Value
  severity	warning
  include_closures	true

Non Triggering Examples

func foo() {}

func foo() -> Int {}

func foo() -> Int -> Void {}

func foo() -> VoidResponse

let foo: (Int) -> Void

func foo() -> Int -> () {}

let foo: (Int) -> ()

func foo() -> ()?

func foo() -> ()!

func foo() -> Void?

func foo() -> Void!

struct A {
    subscript(key: String) {
        print(key)
    }
}

//
// include_closures: false
//

doSomething { arg -> Void in
    print(arg)
}

Triggering Examples

func foo()↓ -> Void {}

protocol Foo {
  func foo()↓ -> Void
}

func foo()↓ -> () {}

func foo()↓ -> ( ) {}

protocol Foo {
  func foo()↓ -> ()
}

doSomething { arg↓ -> () in
    print(arg)
}

doSomething { arg↓ -> Void in
    print(arg)
}