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node_modules/react-native-screens/ios/gamma/split-view/RNSSplitViewScreenComponentEventEmitter.mm

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+#import "RNSSplitViewScreenComponentEventEmitter.h"
+
+#import <React/RCTLog.h>
+
+@implementation RNSSplitViewScreenComponentEventEmitter {
+  std::shared_ptr<const react::RNSSplitViewScreenEventEmitter> _reactEventEmitter;
+}
+
+- (BOOL)emitOnWillAppear
+{
+  if (_reactEventEmitter != nullptr) {
+    _reactEventEmitter->onWillAppear({});
+    return YES;
+  } else {
+    RCTLogWarn(@"[RNScreens] Skipped OnWillAppear event emission due to nullish emitter");
+    return NO;
+  }
+}
+
+- (BOOL)emitOnDidAppear
+{
+  if (_reactEventEmitter != nullptr) {
+    _reactEventEmitter->onDidAppear({});
+    return YES;
+  } else {
+    RCTLogWarn(@"[RNScreens] Skipped OnDidAppear event emission due to nullish emitter");
+    return NO;
+  }
+}
+
+- (BOOL)emitOnWillDisappear
+{
+  if (_reactEventEmitter != nullptr) {
+    _reactEventEmitter->onWillDisappear({});
+    return YES;
+  } else {
+    RCTLogWarn(@"[RNScreens] Skipped OnWillDisappear event emission due to nullish emitter");
+    return NO;
+  }
+}
+
+- (BOOL)emitOnDidDisappear
+{
+  if (_reactEventEmitter != nullptr) {
+    _reactEventEmitter->onDidDisappear({});
+    return YES;
+  } else {
+    RCTLogWarn(@"[RNScreens] Skipped OnDidDisappear event emission due to nullish emitter");
+    return NO;
+  }
+}
+
+- (void)updateEventEmitter:(const std::shared_ptr<const react::RNSSplitViewScreenEventEmitter> &)emitter
+{
+  _reactEventEmitter = emitter;
+}
+
+@end