Add toString to all MountItem subclasses

Summary:
Useful when Fabric debug logging is enabled

Changelog: [Internal]

Reviewed By: mdvacca

Differential Revision: D31399518

fbshipit-source-id: b5907084604adf1f7093798315147ac63b5876f2

ReactAndroid/src/main/java/com/facebook/react/fabric/FabricUIManager.java

@@ -628,6 +628,15 @@ public class FabricUIManager implements UIManager, LifecycleEventListener {
           public int getSurfaceId() {
             return View.NO_ID;
           }
+
+          @Override
+          public String toString() {
+            String propsString =
+                IS_DEVELOPMENT_ENVIRONMENT
+                    ? (props != null ? props.toHashMap().toString() : "<null>")
+                    : "<hidden>";
+            return String.format("SYNC UPDATE PROPS [%d]: %s", reactTag, propsString);
+          }
         };
 
     // If the reactTag exists, we assume that it might at the end of the next
@@ -1016,6 +1025,11 @@ public class FabricUIManager implements UIManager, LifecycleEventListener {
           public int getSurfaceId() {
             return surfaceId;
           }
+
+          @Override
+          public String toString() {
+            return String.format("SET_JS_RESPONDER [%d] [surface:%d]", reactTag, surfaceId);
+          }
         });
   }
 
@@ -1035,6 +1049,11 @@ public class FabricUIManager implements UIManager, LifecycleEventListener {
           public int getSurfaceId() {
             return View.NO_ID;
           }
+
+          @Override
+          public String toString() {
+            return "CLEAR_JS_RESPONDER";
+          }
         });
   }
 

ReactAndroid/src/main/java/com/facebook/react/fabric/mounting/mountitems/IntBufferBatchMountItem.java

@@ -226,8 +226,12 @@ public class IntBufferBatchMountItem implements MountItem {
                     : "<hidden>";
             s.append(String.format("UPDATE PROPS [%d]: %s\n", mIntBuffer[i++], propsString));
           } else if (type == INSTRUCTION_UPDATE_STATE) {
-            j += 1;
-            s.append(String.format("UPDATE STATE [%d]\n", mIntBuffer[i++]));
+            StateWrapper state = castToState(mObjBuffer[j++]);
+            String stateString =
+                IS_DEVELOPMENT_ENVIRONMENT
+                    ? (state != null ? state.getStateData().toString() : "<null>")
+                    : "<hidden>";
+            s.append(String.format("UPDATE STATE [%d]: %s\n", mIntBuffer[i++], stateString));
           } else if (type == INSTRUCTION_UPDATE_LAYOUT) {
             s.append(
                 String.format(

ReactAndroid/src/main/java/com/facebook/react/processing/ReactPropertyProcessor.java

@@ -59,7 +59,7 @@ import javax.lang.model.util.Types;
 /**
  * This annotation processor crawls subclasses of ReactShadowNode and ViewManager and finds their
  * exported properties with the @ReactProp or @ReactGroupProp annotation. It generates a class per
- * shadow node/view manager that is named {@code <classname>$$PropSetter}. This class contains
+ * shadow node/view manager that is named {@code <classname>$$PropsSetter}. This class contains
  * methods to retrieve the name and type of all methods and a way to set these properties without
  * reflection.
  */