Make shadow node traits constexpr (#59658)

Summary:

Allow shadow node traits and built-in trait factories to be evaluated in constant expressions while preserving runtime mutation and custom component behaviour.

Changelog:
[General][Added] - Allow C++ shadow node traits to be evaluated at compile time

Differential Revision: D128570015

Pull Request resolved: #59658

Author: javache

packages/react-native/ReactCommon/react/renderer/components/image/ImageShadowNode.h

@@ -30,7 +30,7 @@ class ImageShadowNode final
  public:
   using ConcreteViewShadowNode::ConcreteViewShadowNode;
 
-  static ShadowNodeTraits BaseTraits()
+  static constexpr ShadowNodeTraits BaseTraits()
   {
     auto traits = ConcreteViewShadowNode::BaseTraits();
     traits.set(ShadowNodeTraits::Trait::LeafYogaNode);

packages/react-native/ReactCommon/react/renderer/components/inputaccessory/InputAccessoryShadowNode.h

@@ -29,7 +29,7 @@ class InputAccessoryShadowNode final : public ConcreteViewShadowNode<
  public:
   using ConcreteViewShadowNode::ConcreteViewShadowNode;
 
-  static ShadowNodeTraits BaseTraits()
+  static constexpr ShadowNodeTraits BaseTraits()
   {
     auto traits = ConcreteViewShadowNode::BaseTraits();
     traits.set(ShadowNodeTraits::Trait::RootNodeKind);

packages/react-native/ReactCommon/react/renderer/components/modal/ModalHostViewShadowNode.h

@@ -29,7 +29,7 @@ class ModalHostViewShadowNode final : public ConcreteViewShadowNode<
  public:
   using ConcreteViewShadowNode::ConcreteViewShadowNode;
 
-  static ShadowNodeTraits BaseTraits()
+  static constexpr ShadowNodeTraits BaseTraits()
   {
     auto traits = ConcreteViewShadowNode::BaseTraits();
     traits.set(ShadowNodeTraits::Trait::RootNodeKind);

packages/react-native/ReactCommon/react/renderer/components/progressbar/android/react/renderer/components/progressbar/AndroidProgressBarShadowNode.h

@@ -28,7 +28,7 @@ class AndroidProgressBarShadowNode final : public ConcreteViewShadowNode<
  public:
   using ConcreteViewShadowNode::ConcreteViewShadowNode;
 
-  static ShadowNodeTraits BaseTraits()
+  static constexpr ShadowNodeTraits BaseTraits()
   {
     auto traits = ConcreteViewShadowNode::BaseTraits();
     traits.set(ShadowNodeTraits::Trait::LeafYogaNode);

packages/react-native/ReactCommon/react/renderer/components/root/RootShadowNode.h

@@ -34,7 +34,7 @@ class RootShadowNode final : public ConcreteViewShadowNode<RootComponentName, Ro
   using Shared = std::shared_ptr<const RootShadowNode>;
   using Unshared = std::shared_ptr<RootShadowNode>;
 
-  static ShadowNodeTraits BaseTraits()
+  static constexpr ShadowNodeTraits BaseTraits()
   {
     auto traits = ConcreteViewShadowNode::BaseTraits();
     traits.set(ShadowNodeTraits::Trait::RootNodeKind);

packages/react-native/ReactCommon/react/renderer/components/switch/androidswitch/react/renderer/components/androidswitch/AndroidSwitchShadowNode.h

@@ -28,7 +28,7 @@ class AndroidSwitchShadowNode final
  public:
   using ConcreteViewShadowNode::ConcreteViewShadowNode;
 
-  static ShadowNodeTraits BaseTraits()
+  static constexpr ShadowNodeTraits BaseTraits()
   {
     auto traits = ConcreteViewShadowNode::BaseTraits();
     traits.set(ShadowNodeTraits::Trait::LeafYogaNode);

packages/react-native/ReactCommon/react/renderer/components/switch/iosswitch/react/renderer/components/switch/AppleSwitchShadowNode.h

@@ -25,7 +25,7 @@ class SwitchShadowNode final
  public:
   using ConcreteViewShadowNode::ConcreteViewShadowNode;
 
-  static ShadowNodeTraits BaseTraits()
+  static constexpr ShadowNodeTraits BaseTraits()
   {
     auto traits = ConcreteViewShadowNode::BaseTraits();
     traits.set(ShadowNodeTraits::Trait::LeafYogaNode);

packages/react-native/ReactCommon/react/renderer/components/text/ParagraphShadowNode.h

@@ -40,7 +40,7 @@ class ParagraphShadowNode
 
   ParagraphShadowNode(const ShadowNode &sourceShadowNode, const ShadowNodeFragment &fragment);
 
-  static ShadowNodeTraits BaseTraits()
+  static constexpr ShadowNodeTraits BaseTraits()
   {
     auto traits = ConcreteViewShadowNode::BaseTraits();
     traits.set(ShadowNodeTraits::Trait::LeafYogaNode);

packages/react-native/ReactCommon/react/renderer/components/text/TextShadowNode.h

@@ -25,7 +25,7 @@ using TextEventEmitter = TouchEventEmitter;
 class TextShadowNode : public ConcreteShadowNode<TextComponentName, ShadowNode, TextProps, TextEventEmitter>,
                        public BaseTextShadowNode {
  public:
-  static ShadowNodeTraits BaseTraits()
+  static constexpr ShadowNodeTraits BaseTraits()
   {
     auto traits = ConcreteShadowNode::BaseTraits();
 #ifdef ANDROID

packages/react-native/ReactCommon/react/renderer/components/textinput/BaseTextInputShadowNode.h

@@ -47,7 +47,7 @@ class BaseTextInputShadowNode
 
   using BaseShadowNode::ConcreteViewShadowNode;
 
-  static ShadowNodeTraits BaseTraits()
+  static constexpr ShadowNodeTraits BaseTraits()
   {
     auto traits = BaseShadowNode::BaseTraits();
     traits.set(ShadowNodeTraits::Trait::LeafYogaNode);