Mark subclasses of ShadowNode final when appropriate

Summary:
Changelog: [internal]

These ShadowNode subclasses should not be further subclassed. compiler can produce smaller and faster code.

Reviewed By: JoshuaGross

Differential Revision: D27463255

fbshipit-source-id: cb10cc61a3d80731476ac0c51af7f9a47e3f9ab7

ReactCommon/react/renderer/components/text/ParagraphShadowNode.h

@@ -28,12 +28,12 @@ extern char const ParagraphComponentName[];
  * containing and displaying text. Text content is represented as nested <Text>
  * and <RawText> components.
  */
-class ParagraphShadowNode : public ConcreteViewShadowNode<
-                                ParagraphComponentName,
-                                ParagraphProps,
-                                ParagraphEventEmitter,
-                                ParagraphState>,
-                            public BaseTextShadowNode {
+class ParagraphShadowNode final : public ConcreteViewShadowNode<
+                                      ParagraphComponentName,
+                                      ParagraphProps,
+                                      ParagraphEventEmitter,
+                                      ParagraphState>,
+                                  public BaseTextShadowNode {
  public:
   using ConcreteViewShadowNode::ConcreteViewShadowNode;
 

ReactCommon/react/renderer/components/textinput/androidtextinput/react/renderer/components/androidtextinput/AndroidTextInputShadowNode.h

@@ -24,11 +24,11 @@ extern const char AndroidTextInputComponentName[];
 /*
  * `ShadowNode` for <AndroidTextInput> component.
  */
-class AndroidTextInputShadowNode : public ConcreteViewShadowNode<
-                                       AndroidTextInputComponentName,
-                                       AndroidTextInputProps,
-                                       AndroidTextInputEventEmitter,
-                                       AndroidTextInputState> {
+class AndroidTextInputShadowNode final : public ConcreteViewShadowNode<
+                                             AndroidTextInputComponentName,
+                                             AndroidTextInputProps,
+                                             AndroidTextInputEventEmitter,
+                                             AndroidTextInputState> {
  public:
   static ShadowNodeTraits BaseTraits() {
     auto traits = ConcreteViewShadowNode::BaseTraits();

ReactCommon/react/renderer/components/textinput/iostextinput/TextInputShadowNode.h

@@ -24,12 +24,12 @@ extern const char TextInputComponentName[];
 /*
  * `ShadowNode` for <TextInput> component.
  */
-class TextInputShadowNode : public ConcreteViewShadowNode<
-                                TextInputComponentName,
-                                TextInputProps,
-                                TextInputEventEmitter,
-                                TextInputState>,
-                            public BaseTextShadowNode {
+class TextInputShadowNode final : public ConcreteViewShadowNode<
+                                      TextInputComponentName,
+                                      TextInputProps,
+                                      TextInputEventEmitter,
+                                      TextInputState>,
+                                  public BaseTextShadowNode {
  public:
   using ConcreteViewShadowNode::ConcreteViewShadowNode;
 

ReactCommon/react/renderer/core/tests/TestComponent.h

@@ -45,11 +45,11 @@ class TestShadowNode;
 
 using SharedTestShadowNode = std::shared_ptr<const TestShadowNode>;
 
-class TestShadowNode : public ConcreteViewShadowNode<
-                           TestComponentName,
-                           TestProps,
-                           ViewEventEmitter,
-                           TestState> {
+class TestShadowNode final : public ConcreteViewShadowNode<
+                                 TestComponentName,
+                                 TestProps,
+                                 ViewEventEmitter,
+                                 TestState> {
  public:
   using ConcreteViewShadowNode::ConcreteViewShadowNode;