Fabric: Moving logic from ConcreteViewShadowNode constructors to YogaLayoutableShadowNode constructors

Summary:
Now we can move custom to `YogaLayoutableShadowNode` code from `ConcreteViewShadowNode<>` template to `YogaLayoutableShadowNode` itself reducing the amount of templated code and reduce overall complexity.

Note, here we have to do `dynamic_cast` for now, we will address that in coming diffs.

Changelog: [Internal] Fabric-specific internal change.

Reviewed By: mdvacca

Differential Revision: D20052021

fbshipit-source-id: dac5969a97b75e54c7728a1ca8161922bd2245ca

Author: shergin

ReactCommon/fabric/components/view/ConcreteViewShadowNode.h

@@ -54,31 +54,7 @@ class ConcreteViewShadowNode : public ConcreteShadowNode<
       Ts...>;
   using ConcreteViewProps = ViewPropsT;
 
-  ConcreteViewShadowNode(
-      ShadowNodeFragment const &fragment,
-      ShadowNodeFamily::Shared const &family,
-      ShadowNodeTraits traits)
-      : BaseShadowNode(fragment, family, traits) {
-    YogaLayoutableShadowNode::setProps(
-        *std::static_pointer_cast<const ConcreteViewProps>(fragment.props));
-    YogaLayoutableShadowNode::setChildren(
-        YogaLayoutableShadowNode::getYogaLayoutableChildren());
-  }
-
-  ConcreteViewShadowNode(
-      ShadowNode const &sourceShadowNode,
-      ShadowNodeFragment const &fragment)
-      : BaseShadowNode(sourceShadowNode, fragment) {
-    if (fragment.props) {
-      YogaLayoutableShadowNode::setProps(
-          *std::static_pointer_cast<const ConcreteViewProps>(fragment.props));
-    }
-
-    if (fragment.children) {
-      YogaLayoutableShadowNode::setChildren(
-          YogaLayoutableShadowNode::getYogaLayoutableChildren());
-    }
-  }
+  using BaseShadowNode::BaseShadowNode;
 
   static ShadowNodeTraits BaseTraits() {
     auto traits = BaseShadowNode::BaseTraits();

ReactCommon/fabric/components/view/yoga/YogaLayoutableShadowNode.cpp

@@ -29,6 +29,9 @@ YogaLayoutableShadowNode::YogaLayoutableShadowNode(
       yogaConfig_(nullptr),
       yogaNode_(&initializeYogaConfig(yogaConfig_)) {
   yogaNode_.setContext(this);
+
+  setProps(dynamic_cast<YogaStylableProps const &>(*fragment.props));
+  setChildren(YogaLayoutableShadowNode::getYogaLayoutableChildren());
 }
 
 YogaLayoutableShadowNode::YogaLayoutableShadowNode(
@@ -47,6 +50,14 @@ YogaLayoutableShadowNode::YogaLayoutableShadowNode(
   assert(
       static_cast<YogaLayoutableShadowNode const &>(sourceShadowNode)
           .yogaNode_.isDirty() == yogaNode_.isDirty());
+
+  if (fragment.props) {
+    setProps(dynamic_cast<YogaStylableProps const &>(*fragment.props));
+  }
+
+  if (fragment.children) {
+    setChildren(YogaLayoutableShadowNode::getYogaLayoutableChildren());
+  }
 }
 
 void YogaLayoutableShadowNode::cleanLayout() {
@@ -165,7 +176,7 @@ void YogaLayoutableShadowNode::setChildren(
   yogaNode_.setDirty(!isClean);
 }
 
-void YogaLayoutableShadowNode::setProps(const YogaStylableProps &props) {
+void YogaLayoutableShadowNode::setProps(YogaStylableProps const &props) {
   ensureUnsealed();
 
   // Resetting `dirty` flag only if `yogaStyle` portion of `Props` was changed.