Lower ACL than Parent

Ensure declarations have a lower access control level than their enclosing parent

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

  Key	Value
  severity	warning

Non Triggering Examples

public struct Foo { public func bar() {} }

internal struct Foo { func bar() {} }

struct Foo { func bar() {} }

struct Foo { internal func bar() {} }

open class Foo { public func bar() {} }

open class Foo { open func bar() {} }

fileprivate struct Foo { private func bar() {} }

private struct Foo { private func bar(id: String) }

extension Foo { public func bar() {} }

private struct Foo { fileprivate func bar() {} }

private func foo(id: String) {}

private class Foo { func bar() {} }

public extension Foo { struct Bar { public func baz() {} }}

public extension Foo { struct Bar { internal func baz() {} }}

internal extension Foo { struct Bar { internal func baz() {} }}

extension Foo { struct Bar { internal func baz() {} }}

Triggering Examples

struct Foo { ↓public func bar() {} }

enum Foo { ↓public func bar() {} }

public class Foo { ↓open func bar() }

class Foo { ↓public private(set) var bar: String? }

private struct Foo { ↓public func bar() {} }

private class Foo { ↓public func bar() {} }

private actor Foo { ↓public func bar() {} }

fileprivate struct Foo { ↓public func bar() {} }

class Foo { ↓public func bar() {} }

actor Foo { ↓public func bar() {} }

private struct Foo { ↓internal func bar() {} }

fileprivate struct Foo { ↓internal func bar() {} }

extension Foo { struct Bar { ↓public func baz() {} }}

internal extension Foo { struct Bar { ↓public func baz() {} }}

private extension Foo { struct Bar { ↓public func baz() {} }}

fileprivate extension Foo { struct Bar { ↓public func baz() {} }}

private extension Foo { struct Bar { ↓internal func baz() {} }}

fileprivate extension Foo { struct Bar { ↓internal func baz() {} }}

public extension Foo { struct Bar { struct Baz { ↓public func qux() {} }}}

final class Foo { ↓public func bar() {} }