Add support for syncing using NSUbiquitousKeyValueStore (#136)

Co-authored-by: Sindre Sorhus <[email protected]>

Sources/Defaults/Defaults+Bridge.swift

@@ -418,7 +418,7 @@ extension Defaults {
  return nil
  }
 
- if #available(iOS 15.0, macOS 12.0, tvOS 15.0, watchOS 8.0, iOSApplicationExtension 15.0, macOSApplicationExtension 12.0, tvOSApplicationExtension 15.0, watchOSApplicationExtension 8.0, *) {
+ if #available(iOS 15.0, macOS 12.0, tvOS 15.0, watchOS 8.0, visionOS 1.0, iOSApplicationExtension 15.0, macOSApplicationExtension 12.0, tvOSApplicationExtension 15.0, watchOSApplicationExtension 8.0, visionOSApplicationExtension 1.0, *) {
  return Value(cgColor: cgColor)
  }
 

Sources/Defaults/Defaults+Extensions.swift

@@ -164,3 +164,17 @@ extension NSColor: Defaults.Serializable {}
 */
 extension UIColor: Defaults.Serializable {}
 #endif
+
+extension NSUbiquitousKeyValueStore: DefaultsKeyValueStore {}
+extension UserDefaults: DefaultsKeyValueStore {}
+
+extension DefaultsLockProtocol {
+ @discardableResult
+ func with<R>(_ body: @Sendable () throws -> R) rethrows -> R where R: Sendable {
+ self.lock()
+ defer {
+ self.unlock()
+ }
+ return try body()
+ }
+}

Sources/Defaults/Defaults+Protocol.swift

@@ -52,3 +52,27 @@ public protocol _DefaultsRange {
 
  init(uncheckedBounds: (lower: Bound, upper: Bound))
 }
+
+/**
+Essential properties for synchronizing a key value store.
+*/
+protocol DefaultsKeyValueStore {
+ func object(forKey aKey: String) -> Any?
+
+ func set(_ anObject: Any?, forKey aKey: String)
+
+ func removeObject(forKey aKey: String)
+
+ @discardableResult
+ func synchronize() -> Bool
+}
+
+protocol DefaultsLockProtocol {
+ static func make() -> Self
+
+ func lock()
+
+ func unlock()
+
+ func with<R>(_ body: @Sendable () throws -> R) rethrows -> R where R: Sendable
+}