Minor tweaks

Sources/Defaults/Defaults.swift

@@ -131,8 +131,8 @@ extension Defaults {
 	}
 }
 
-extension Defaults.Key where Value: _DefaultsOptionalType {
-	public convenience init(_ key: String, suite: UserDefaults = .standard) {
+extension Defaults.Key {
+	public convenience init<T>(_ key: String, suite: UserDefaults = .standard) where Value == T? {
 		self.init(key, default: nil, suite: suite)
 	}
 }

Sources/Defaults/Observation+Combine.swift

@@ -143,7 +143,7 @@ extension Defaults {
 				DefaultsPublisher(suite: key.suite, key: key.name, options: options)
 					.map { _ in () }
 					.eraseToAnyPublisher()
-			}.reduce(initial) { (combined, keyPublisher) in
+			}.reduce(initial) { combined, keyPublisher in
 				combined.merge(with: keyPublisher).eraseToAnyPublisher()
 			}
 

Sources/Defaults/Observation.swift

@@ -83,11 +83,11 @@ extension Defaults {
 		let oldValue: Any?
 
 		init(change: [NSKeyValueChangeKey: Any]) {
-			kind = NSKeyValueChange(rawValue: change[.kindKey] as! UInt)!
-			indexes = change[.indexesKey] as? IndexSet
-			isPrior = change[.notificationIsPriorKey] as? Bool ?? false
-			oldValue = change[.oldKey]
-			newValue = change[.newKey]
+			self.kind = NSKeyValueChange(rawValue: change[.kindKey] as! UInt)!
+			self.indexes = change[.indexesKey] as? IndexSet
+			self.isPrior = change[.notificationIsPriorKey] as? Bool ?? false
+			self.oldValue = change[.oldKey]
+			self.newValue = change[.newKey]
 		}
 	}
 
@@ -168,7 +168,7 @@ extension Defaults {
 			lifetimeAssociation?.cancel()
 		}
 
-		private var lifetimeAssociation: LifetimeAssociation? = nil
+		private var lifetimeAssociation: LifetimeAssociation?
 
 		public func tieToLifetime(of weaklyHeldObject: AnyObject) -> Self {
 			lifetimeAssociation = LifetimeAssociation(of: self, with: weaklyHeldObject, deinitHandler: { [weak self] in

Sources/Defaults/util.swift

@@ -79,12 +79,12 @@ final class LifetimeAssociation {
 	- Parameter owner: The object whose lifetime extends the target object's lifetime.
 	- Parameter deinitHandler: An optional closure to call when either `owner` or the resulting `LifetimeAssociation` is deallocated.
 	*/
-	init(of target: AnyObject, with owner: AnyObject, deinitHandler: @escaping () -> Void = { }) {
+	init(of target: AnyObject, with owner: AnyObject, deinitHandler: @escaping () -> Void = {}) {
 		let wrappedObject = ObjectLifetimeTracker(for: target, deinitHandler: deinitHandler)
-		
+
 		let associatedObjects = LifetimeAssociation.associatedObjects[owner] ?? []
 		LifetimeAssociation.associatedObjects[owner] = associatedObjects + [wrappedObject]
-		
+
 		self.wrappedObject = wrappedObject
 		self.owner = owner
 	}

Tests/DefaultsTests/DefaultsTests.swift

@@ -366,7 +366,7 @@ final class DefaultsTests: XCTestCase {
 	func testReceiveValueBeforeSubscriptionCombine() {
 		let key = Defaults.Key<String>("receiveValueBeforeSubscription", default: "hello")
 		let expect = expectation(description: "Observation closure being called")
-		
+
 		let publisher = Defaults
 			.publisher(key)
 			.compactMap { $0.newValue }
@@ -378,7 +378,7 @@ final class DefaultsTests: XCTestCase {
 			expect.fulfill()
 		}
 
-		Defaults[key] = "world";
+		Defaults[key] = "world"
 		cancellable.cancel()
 		waitForExpectations(timeout: 10)
 	}
@@ -573,7 +573,7 @@ final class DefaultsTests: XCTestCase {
 		let expect = expectation(description: "Observation closure being called")
 
 		weak var observation: Defaults.Observation!
-		observation = Defaults.observe(key, options: []) { change in
+		observation = Defaults.observe(key, options: []) { _ in
 			observation.invalidate()
 			expect.fulfill()
 		}.tieToLifetime(of: self)