Private Outlets

IBOutlets should be private to avoid leaking UIKit to higher layers

• Identifier: private_outlet
• Enabled by default: No
• Supports autocorrection: No
• Kind: lint
• Analyzer rule: No
• Minimum Swift compiler version: 5.0.0
• Default configuration:

  Key	Value
  severity	warning
  allow_private_set	false

Non Triggering Examples

class Foo { @IBOutlet private var label: UILabel? }

class Foo { @IBOutlet private var label: UILabel! }

class Foo { var notAnOutlet: UILabel }

class Foo { @IBOutlet weak private var label: UILabel? }

class Foo { @IBOutlet private weak var label: UILabel? }

class Foo { @IBOutlet fileprivate weak var label: UILabel? }

//
// allow_private_set: true
//

class Foo { @IBOutlet private(set) var label: UILabel? }

//
// allow_private_set: true
//

class Foo { @IBOutlet private(set) var label: UILabel! }

//
// allow_private_set: true
//

class Foo { @IBOutlet weak private(set) var label: UILabel? }

//
// allow_private_set: true
//

class Foo { @IBOutlet private(set) weak var label: UILabel? }

//
// allow_private_set: true
//

class Foo { @IBOutlet fileprivate(set) weak var label: UILabel? }

Triggering Examples

class Foo { @IBOutlet ↓var label: UILabel? }

class Foo { @IBOutlet ↓var label: UILabel! }

class Foo { @IBOutlet private(set) ↓var label: UILabel? }

class Foo { @IBOutlet fileprivate(set) ↓var label: UILabel? }