Use ConcreteStateTeller in RCTImageComponentView

Summary: Changelog: [Internal]

Reviewed By: JoshuaGross

Differential Revision: D23239098

fbshipit-source-id: fa558e705e121f3d3fbded80ae99e5f51c80ae4a

React/Fabric/Mounting/ComponentViews/Image/RCTImageComponentView.mm

@@ -26,7 +26,7 @@ @interface RCTImageComponentView () <RCTImageResponseDelegate>
 
 @implementation RCTImageComponentView {
  UIImageView *_imageView;
- ImageShadowNode::ConcreteState::Shared _state;
+ ImageShadowNode::ConcreteStateTeller _stateTeller;
  ImageResponseObserverCoordinator const *_coordinator;
  RCTImageResponseObserverProxy _imageResponseObserverProxy;
 }
@@ -84,9 +84,9 @@ - (void)updateProps:(Props::Shared const &)props oldProps:(Props::Shared const &
 
 - (void)updateState:(State::Shared const &)state oldState:(State::Shared const &)oldState
 {
- _state = std::static_pointer_cast<ImageShadowNode::ConcreteState const>(state);
+ _stateTeller.setConcreteState(state);
  auto _oldState = std::static_pointer_cast<ImageShadowNode::ConcreteState const>(oldState);
- auto data = _state->getData();
+ auto data = _stateTeller.getData().value();
 
  // This call (setting `coordinator`) must be unconditional (at the same block as setting `State`)
  // because the setter stores a raw pointer to object that `State` owns.
@@ -120,7 +120,7 @@ - (void)prepareForRecycle
  [super prepareForRecycle];
  self.coordinator = nullptr;
  _imageView.image = nil;
- _state.reset();
+ _stateTeller.invalidate();
 }
 
 - (void)dealloc
@@ -132,7 +132,7 @@ - (void)dealloc
 
 - (void)didReceiveImage:(UIImage *)image fromObserver:(void const *)observer
 {
- if (!_eventEmitter || !_state) {
+ if (!_eventEmitter || !_stateTeller.isValid()) {
  // Notifications are delivered asynchronously and might arrive after the view is already recycled.
  // In the future, we should incorporate an `EventEmitter` into a separate object owned by `ImageRequest` or `State`.
  // See for more info: T46311063.
@@ -158,12 +158,12 @@ - (void)didReceiveImage:(UIImage *)image fromObserver:(void const *)observer
  }
 
  void (^didSetImage)() = ^() {
- if (!self->_state) {
+ auto data = self->_stateTeller.getData();
+ if (!data.hasValue()) {
  return;
  }
- auto data = self->_state->getData();
  auto instrumentation = std::static_pointer_cast<RCTImageInstrumentationProxy const>(
- data.getImageRequest().getSharedImageInstrumentation());
+ data.value().getImageRequest().getSharedImageInstrumentation());
  if (instrumentation) {
  instrumentation->didSetImage();
  }