Redundant Type Annotation

Variables should not have redundant type annotation

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

  Key	Value
  severity	warning

Non Triggering Examples

var url = URL()

var url: CustomStringConvertible = URL()

@IBInspectable var color: UIColor = UIColor.white

enum Direction {
    case up
    case down
}

var direction: Direction = .up

enum Direction {
    case up
    case down
}

var direction = Direction.up

Triggering Examples

var url↓:URL=URL()

var url↓:URL = URL(string: "")

var url↓: URL = URL()

let url↓: URL = URL()

lazy var url↓: URL = URL()

let alphanumerics↓: CharacterSet = CharacterSet.alphanumerics

class ViewController: UIViewController {
  func someMethod() {
    let myVar↓: Int = Int(5)
  }
}

var isEnabled↓: Bool = true

enum Direction {
    case up
    case down
}

var direction↓: Direction = Direction.up