fix: Destination inheritance API

Author: maximkrouk

Sources/CombineNavigation/Destinations/StackDestination.swift

@@ -11,12 +11,14 @@ open class StackDestination<
 	Controller: CocoaViewController
 >: Weakifiable {
 	private var _controllers: [StackElementID: Weak<Controller>] = [:]
-	public var wrappedValue: [StackElementID: Controller] {
+
+	open var wrappedValue: [StackElementID: Controller] {
 		let controllers = _controllers.compactMapValues(\.wrappedValue)
 		_controllers = controllers.mapValues(Weak.init(wrappedValue:))
 		return controllers
 	}
-	public var projectedValue: StackDestination<StackElementID, Controller> { self }
+
+	open var projectedValue: StackDestination<StackElementID, Controller> { self }
 
 	private var _initControllerOverride: ((StackElementID) -> Controller)?
 
@@ -45,7 +47,7 @@ open class StackDestination<
 		}
 	}
 
-	@_spi(Internals) public class func initController(
+	@_spi(Internals) open class func initController(
 		for id: StackElementID
 	) -> Controller {
 		return Controller()

Sources/CombineNavigation/Destinations/TreeDestination.swift

@@ -8,8 +8,8 @@ import FoundationExtensions
 @propertyWrapper
 open class TreeDestination<Controller: CocoaViewController>: Weakifiable {
 	private weak var _controller: Controller?
-	public var wrappedValue: Controller? { _controller }
-	public var projectedValue: TreeDestination<Controller> { self }
+	open var wrappedValue: Controller? { _controller }
+	open var projectedValue: TreeDestination<Controller> { self }
 
 	private var _initControllerOverride: (() -> Controller)?
 
@@ -36,7 +36,7 @@ open class TreeDestination<Controller: CocoaViewController>: Weakifiable {
 		}
 	}
 
-	@_spi(Internals) public class func initController() -> Controller {
+	@_spi(Internals) open class func initController() -> Controller {
 		return Controller()
 	}
 

Tests/CombineNavigationTests/Destinations/StackDestinationTests.swift

@@ -1,6 +1,6 @@
 import XCTest
 import CocoaAliases
-@_spi(Internals) @testable import CombineNavigation
+@_spi(Internals) import CombineNavigation
 
 #if canImport(UIKit) && !os(watchOS)
 final class StackDestinationTests: XCTestCase {

Tests/CombineNavigationTests/Destinations/TreeDestinationTests.swift

@@ -1,6 +1,6 @@
 import XCTest
 import CocoaAliases
-@_spi(Internals) @testable import CombineNavigation
+@_spi(Internals) import CombineNavigation
 
 #if canImport(UIKit) && !os(watchOS)
 final class TreeDestinationTests: XCTestCase {