Add ViewRenderer and ViewCache API support

Sources/OpenSwiftUICore/Graphic/GraphicsContext.swift

@@ -536,13 +536,28 @@ extension GraphicsContext {
         #endif
     }
 
+    // FIXME
+    struct ORBLayerFlags: OptionSet {
+        let rawValue: UInt32
+
+        init(rawValue: UInt32) {
+            self.rawValue = rawValue
+        }
+    }
+
+    func drawLayer(
+        flags: ORBLayerFlags,
+        content: (inout GraphicsContext) throws -> Void
+    ) throws {
+        _openSwiftUIUnimplementedFailure()
+    }
+
     package mutating func translateBy(x: CGFloat, y: CGFloat) {
         guard x != 0 || y != 0 else { return }
         _openSwiftUIUnimplementedFailure()
     }
 
     // FIXME
-    #if canImport(CoreGraphics)
     static func renderingTo(
         cgContext: CGContext,
         environment: EnvironmentValues,
@@ -551,5 +566,4 @@ extension GraphicsContext {
     ) {
         _openSwiftUIUnimplementedFailure()
     }
-    #endif
 }

Sources/OpenSwiftUICore/Graphic/GraphicsFilter.swift

@@ -24,7 +24,7 @@ package enum GraphicsFilter {
     case vibrantColorMatrix(_ColorMatrix)
     case luminanceCurve(GraphicsFilter.LuminanceCurve)
     case colorCurves(GraphicsFilter.ColorCurves)
-    // case shader(GraphicsFilter.ShaderFilter)
+    case shader(GraphicsFilter.ShaderFilter)
 
     package struct ColorMonochrome: Equatable {
         package var color: Color.Resolved
@@ -73,15 +73,15 @@ package enum GraphicsFilter {
         }
     }
 
-//    package struct ShaderFilter {
+    package struct ShaderFilter {
 //        package var shader: Shader.ResolvedShader
 //        package var size: CGSize
 //        
 //        package init(shader: Shader.ResolvedShader, size: CGSize) {
 //            self.shader = shader
 //            self.size = size
 //        }
-//    }
+    }
 }
 
 package enum GraphicsBlendMode: Equatable {

Sources/OpenSwiftUICore/Render/DisplayList/DisplayList.swift

@@ -218,9 +218,10 @@ extension DisplayList {
         case rotation3D(_Rotation3DEffect.Data)
     }
 
-//    package typealias AnyEffectAnimation = _DisplayList_AnyEffectAnimation
-//    package typealias AnyEffectAnimator = _DisplayList_AnyEffectAnimator
-
+    package typealias AnyEffectAnimation = _DisplayList_AnyEffectAnimation
+
+    package typealias AnyEffectAnimator = _DisplayList_AnyEffectAnimator
+
     package struct ArchiveIDs {
         package var uuid: UUID
         package var stableIDs: StableIdentityMap
@@ -481,7 +482,22 @@ extension DisplayList.Item {
         // TODO eg. .opacity(1.0) -> .identity
     }
 
-    // package func matchesTopLevelStructure(of other: DisplayList.Item) -> Bool
+    // TBA
+    package func matchesTopLevelStructure(of other: DisplayList.Item) -> Bool {
+        guard identity == other.identity else { return false }
+        switch (value, other.value) {
+        case (.empty, .empty):
+            return true
+        case (.content, .content):
+            return true
+        case (.effect, .effect):
+            return true
+        case (.states, .states):
+            return true
+        default:
+            return false
+        }
+    }
 
     package var features: DisplayList.Features {
         // TODO
@@ -551,7 +567,19 @@ extension DisplayList {
 
 package struct AccessibilityNodeAttachment {}
 
-package protocol _DisplayList_AnyEffectAnimation {}
+package protocol _DisplayList_AnyEffectAnimation: ProtobufMessage {
+    // FIXME: CodableEffectAnimation
+    static var leafProtobufTag: CodableAnimation.Tag? { get }
+    func makeAnimator() -> any _DisplayList_AnyEffectAnimator
+}
+
+package protocol _DisplayList_AnyEffectAnimator {
+    func evaluate(
+        _ animation: any DisplayList.AnyEffectAnimation,
+        at time: Time,
+        size: CGSize
+    ) -> (DisplayList.Effect, finished: Bool)
+}
 
 extension DisplayList.Item {
     func addDrawingGroup(contentSeed: DisplayList.Seed) {

Sources/OpenSwiftUICore/Render/DisplayList/DisplayListPlatformEffect.swift

@@ -2,21 +2,40 @@
 //  DisplayListPlatformEffect.swift
 //  OpenSwiftUICore
 //
-//  Audited for 6.0.87
+//  Audited for 6.5.4
 //  Status: Complete
 
+// MARK: - DisplayList.PlatformEffect
+
 extension DisplayList {
     package enum PlatformEffect {
         case identity
-        package var features: DisplayList.Features { [] }
-        package func encode(to encoder: any Encoder) throws {}
-        package init(from decoder: any Decoder) throws { self = .identity }
-        package func print(into sexp: inout SExpPrinter) {}
+
+        package var features: DisplayList.Features {
+            []
+        }
+
+        package func encode(to encoder: any Encoder) throws {
+            _openSwiftUIEmptyStub()
+        }
+
+        package init(from decoder: any Decoder) throws {
+            self = .identity
+        }
+
+        package func print(into sexp: inout SExpPrinter) {
+            _openSwiftUIEmptyStub()
+        }
     }
 }
 extension DisplayList.PlatformEffect: ProtobufMessage {
-    package func encode(to encoder: inout ProtobufEncoder) throws {}
-    package init(from decoder: inout ProtobufDecoder) throws { self = .identity }
+    package func encode(to encoder: inout ProtobufEncoder) throws {
+        _openSwiftUIEmptyStub()
+    }
+
+    package init(from decoder: inout ProtobufDecoder) throws {
+        self = .identity
+    }
 }
 
 extension DisplayList.ViewUpdater {
@@ -29,3 +48,8 @@ extension DisplayList.ViewUpdater.Platform {
     package struct PlatformState {
     }
 }
+
+extension DisplayList.ViewUpdater.Model {
+    package struct PlatformState {
+    }
+}