Update RootTransform

Author: Kyle-Ye

Sources/OpenSwiftUI/Integration/Hosting/UIKit/View/UIHostingView.swift

@@ -330,11 +330,7 @@ open class _UIHostingView<Content>: UIView, XcodeViewDebugDataProvider where Con
         render(interval: interval, targetTimestamp: nil)
         Update.unlock()
     }
-    
-    package func modifyViewInputs(_ inputs: inout _ViewInputs) {
-        // TODO
-    }
-    
+
     override dynamic open var frame: CGRect {
         get {
             super.frame

Sources/OpenSwiftUICore/View/Graph/ViewGraph.swift

@@ -510,30 +510,7 @@ extension ViewGraph {
     }
 }
 
-// MARK: - RootDisplayList
 
-private struct RootDisplayList: Rule, AsyncAttribute {
-    @Attribute var content: DisplayList
-    @Attribute var time: Time
-    
-    var value: (DisplayList, DisplayList.Version) {
-        var displayList = content
-        let version = DisplayList.Version(forUpdate: ())
-        displayList.applyViewGraphTransform(time: $time, version: version)
-        return (content, version)
-    }
-}
-
-// MARK: - RootTransform
-
-private struct RootTransform: Rule {
-    var value: ViewTransform {
-        guard let delegate = ViewGraph.current.delegate else {
-            return ViewTransform()
-        }
-        return delegate.rootTransform()
-    }
-}
 
 // MARK: - RootGeometry
 
@@ -662,3 +639,36 @@ extension Graph {
         unsafeBitCast(context, to: ViewGraph.self)
     }
 }
+
+// MARK: - RootTransformProvider
+
+protocol RootTransformProvider {
+    func rootTransform() -> ViewTransform
+}
+
+// MARK: - RootDisplayList
+
+private struct RootDisplayList: Rule, AsyncAttribute {
+    @Attribute var content: DisplayList
+    @Attribute var time: Time
+
+    var value: (DisplayList, DisplayList.Version) {
+        var displayList = content
+        let version = DisplayList.Version(forUpdate: ())
+        displayList.applyViewGraphTransform(time: $time, version: version)
+        return (content, version)
+    }
+}
+
+// MARK: - RootTransform [6.5.4]
+
+private struct RootTransform: Rule {
+    var value: ViewTransform {
+        guard let delegate = ViewGraph.current.delegate,
+              let provider = delegate.as(RootTransformProvider.self)
+        else {
+            return ViewTransform()
+        }
+        return provider.rootTransform()
+    }
+}

Sources/OpenSwiftUICore/View/Graph/ViewGraphDelegate.swift

@@ -2,27 +2,20 @@
 //  ViewGraphDelegate.swift
 //  OpenSwiftUICore
 //
-//  Audited for iOS 18.0
+//  Audited for 6.5.4
 //  Status: Complete
 
 package protocol ViewGraphDelegate: GraphDelegate {
     func `as`<T>(_ type: T.Type) -> T?
-    func modifyViewInputs(_ inputs: inout _ViewInputs)
     func updateViewGraph<T>(body: (ViewGraph) -> T) -> T
     func requestUpdate(after: Double) -> ()
-    func rootTransform() -> ViewTransform
 }
 
 @_spi(ForOpenSwiftUIOnly)
 extension ViewGraphDelegate {
     package func `as`<T>(_ type: T.Type) -> T? { nil }
-    package func modifyViewInputs(_ inputs: inout _ViewInputs) {}
-    
+
     public func updateGraph<T>(body: (GraphHost) -> T) -> T {
         updateViewGraph { body($0) }
     }
-    
-    package func rootTransform() -> ViewTransform {
-        ViewTransform()
-    }
 }