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node_modules/react-native/Libraries/NativeAnimation/Nodes/RCTStyleAnimatedNode.mm

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+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+#import <React/RCTAnimationUtils.h>
+#import <React/RCTColorAnimatedNode.h>
+#import <React/RCTObjectAnimatedNode.h>
+#import <React/RCTStyleAnimatedNode.h>
+#import <React/RCTTransformAnimatedNode.h>
+#import <React/RCTValueAnimatedNode.h>
+
+@implementation RCTStyleAnimatedNode {
+  NSMutableDictionary<NSString *, NSObject *> *_propsDictionary;
+}
+
+- (instancetype)initWithTag:(NSNumber *)tag config:(NSDictionary<NSString *, id> *)config
+{
+  if ((self = [super initWithTag:tag config:config]) != nullptr) {
+    _propsDictionary = [NSMutableDictionary new];
+  }
+  return self;
+}
+
+- (NSDictionary *)propsDictionary
+{
+  return _propsDictionary;
+}
+
+- (void)performUpdate
+{
+  [super performUpdate];
+
+  NSDictionary<NSString *, NSNumber *> *style = self.config[@"style"];
+  [style enumerateKeysAndObjectsUsingBlock:^(NSString *property, NSNumber *nodeTag, __unused BOOL *stop) {
+    RCTAnimatedNode *node = [self.parentNodes objectForKey:nodeTag];
+    if (node != nullptr) {
+      if ([node isKindOfClass:[RCTValueAnimatedNode class]]) {
+        RCTValueAnimatedNode *valueAnimatedNode = (RCTValueAnimatedNode *)node;
+        id animatedObject = valueAnimatedNode.animatedObject;
+        if (animatedObject != nullptr) {
+          _propsDictionary[property] = animatedObject;
+        } else {
+          _propsDictionary[property] = @(valueAnimatedNode.value);
+        }
+      } else if ([node isKindOfClass:[RCTTransformAnimatedNode class]]) {
+        RCTTransformAnimatedNode *transformAnimatedNode = (RCTTransformAnimatedNode *)node;
+        [_propsDictionary addEntriesFromDictionary:transformAnimatedNode.propsDictionary];
+      } else if ([node isKindOfClass:[RCTColorAnimatedNode class]]) {
+        RCTColorAnimatedNode *colorAnimatedNode = (RCTColorAnimatedNode *)node;
+        _propsDictionary[property] = @(colorAnimatedNode.color);
+      } else if ([node isKindOfClass:[RCTObjectAnimatedNode class]]) {
+        RCTObjectAnimatedNode *objectAnimatedNode = (RCTObjectAnimatedNode *)node;
+        _propsDictionary[property] = objectAnimatedNode.value;
+      }
+    }
+  }];
+}
+
+@end