Add DynamicView (#197)

* Add DynamicView interface

* Add DynamicViewContainer

* Format ViewList

* Add DynamicViewList

* Fix OG API and Linux build issue

Author: Kyle-Ye

Package.resolved

@@ -74,7 +74,7 @@ package struct PreferencesOutputs {
     #endif
 
     #if canImport(Darwin)
-    package func setIndirectDependencies(_ dependency: AnyAttribute?) {
+    package func setIndirectDependency(_ dependency: AnyAttribute?) {
         preferences.forEach {
             $0.value.indirectDependency = dependency
         }

Sources/OpenSwiftUICore/Data/Preference/PreferencesOutputs.swift

@@ -31,8 +31,8 @@ extension _ViewInputs {
 
 extension _ViewOutputs {
     #if canImport(Darwin)
-    package func setIndirectDependencies(_ dependency: AnyAttribute?) {
-        preferences.setIndirectDependencies(dependency)
+    package func setIndirectDependency(_ dependency: AnyAttribute?) {
+        preferences.setIndirectDependency(dependency)
         if let target = layoutComputer?.identifier {
             target.indirectDependency = dependency
         }

Sources/OpenSwiftUICore/Data/Preference/View_Indirect.swift

@@ -6,7 +6,7 @@
 //  Status: WIP
 //  ID: B2543BCA257433E04979186A1DC2B6BC
 
-import OpenGraphShims
+package import OpenGraphShims
 import OpenSwiftUI_SPI
 
 /// The context of the current state-processing update.
@@ -247,11 +247,39 @@ extension Transaction {
     }
 }
 
-// MARK: - TransactionID [TODO]
+// MARK: - TransactionID
 
-package struct TransactionID/*: Comparable, Hashable */{
+package struct TransactionID: Comparable, Hashable {
     package var id: Int
-    package init(id: Int) {
-        self.id = id
+
+    @inlinable
+    package init() { id = .zero }
+
+    @inlinable
+    package init(graph: Graph) {
+        id = Int(graph.counter(for: ._1))
+    }
+
+    @inlinable
+    package init(context: AnyRuleContext) {
+        #if canImport(Darwin)
+        self.init(graph: context.attribute.graph)
+        #else
+        preconditionFailure("See #39")
+        #endif
+    }
+
+    @inlinable
+    package init<Value>(context: RuleContext<Value>) {
+        #if canImport(Darwin)
+        self.init(graph: context.attribute.graph)
+        #else
+        preconditionFailure("See #39")
+        #endif
+    }
+
+    @inlinable
+    package static func < (lhs: TransactionID, rhs: TransactionID) -> Bool {
+        lhs.id < rhs.id
     }
 }

Sources/OpenSwiftUICore/Data/Transaction/Transaction.swift

@@ -317,15 +317,16 @@ private struct MergedEnvironment: Rule, AsyncAttribute {
     }
 }
 
-// FIXME: TO BE REMOVED
 extension _GraphInputs {
-
-    // MARK: - cachedEnvironment
+    @inline(__always)
+    mutating func detachEnvironmentInputs() {
+        cachedEnvironment = MutableBox(cachedEnvironment.wrappedValue)
+    }
 
     @inline(__always)
-    package func detechedEnvironmentInputs() -> Self {
+    func detachedEnvironmentInputs() -> Self {
         var newInputs = self
-        newInputs.cachedEnvironment = MutableBox(cachedEnvironment.wrappedValue)
+        newInputs.detachEnvironmentInputs()
         return newInputs
     }
 }

Sources/OpenSwiftUICore/Graph/GraphInputs.swift

@@ -18,9 +18,7 @@ extension ViewModifier {
     ) -> _ViewOutputs {
         let fields = DynamicPropertyCache.fields(of: Self.self)
         var inputs = inputs
-        let (view, buffer) = inputs.withMutateGraphInputs { inputs in
-            makeBody(modifier: modifier, inputs: &inputs, fields: fields)
-        }
+        let (view, buffer) = makeBody(modifier: modifier, inputs: &inputs.base, fields: fields)
         inputs.append(.view(body), to: _ViewModifier_Content<Self>.BodyInput.self)
         let outputs = _ViewDebug.makeView(
             view: view,

Sources/OpenSwiftUICore/Modifier/ViewModifier/CustomViewModifier.swift

@@ -107,9 +107,7 @@ extension ViewModifier where Self: _GraphInputsModifier, Body == Never {
         body: @escaping (_Graph, _ViewInputs) -> _ViewOutputs
     ) -> _ViewOutputs {
         var inputs = inputs
-        inputs.withMutateGraphInputs { inputs in
-            _makeInputs(modifier: modifier, inputs: &inputs)
-        }
+        _makeInputs(modifier: modifier, inputs: &inputs.base)
         let outputs = body(_Graph(), inputs)
         return outputs
     }

Sources/OpenSwiftUICore/Modifier/ViewModifier/ViewModifier.swift

@@ -188,7 +188,7 @@ private struct AnyViewContainer: StatefulRule, AsyncAttribute {
         let childGraph = OGSubgraph(graph: parentSubgraph.graph)
         parentSubgraph.addChild(childGraph)
         return childGraph.apply {
-            let childInputs = inputs.detechedEnvironmentInputs()
+            let childInputs = inputs.detachedEnvironmentInputs()
             let childOutputs = storage.makeChild(
                 uniqueId: uniqueId,
                 container: current.unsafeCast(to: AnyViewInfo.self),

Sources/OpenSwiftUICore/View/AnyView.swift

@@ -25,9 +25,7 @@ extension View {
     nonisolated package static func makeView(view: _GraphValue<Self>, inputs: _ViewInputs) -> _ViewOutputs {
         let fields = DynamicPropertyCache.fields(of: Self.self)
         var inputs = inputs
-        let (body, buffer) = inputs.withMutateGraphInputs { inputs in
-            makeBody(view: view, inputs: &inputs, fields: fields)
-        }
+        let (body, buffer) = makeBody(view: view, inputs: &inputs.base, fields: fields)
         // FIXME
         let outputs = _ViewDebug.makeView(
             view: body,