text: /**
   * Copyright (c) Facebook, Inc. and its affiliates.
   *
   * This source code is licensed under the MIT license found in the
   * LICENSE file in the root directory of this source tree.
   */
  
  #import <tgmath.h>
  
  #import <CoreGraphics/CoreGraphics.h>
  #import <Foundation/Foundation.h>
  #import <React/RCTUIKit.h> // TODO(macOS ISS#2323203)
  
  #import <React/RCTAssert.h>
  #import <React/RCTDefines.h>
  
  NS_ASSUME_NONNULL_BEGIN
  
  // JSON serialization/deserialization
  RCT_EXTERN NSString *__nullable RCTJSONStringify(id __nullable jsonObject, NSError **error);
  RCT_EXTERN id __nullable RCTJSONParse(NSString *__nullable jsonString, NSError **error);
  RCT_EXTERN id __nullable RCTJSONParseMutable(NSString *__nullable jsonString, NSError **error);
  
  // Sanitize a JSON object by stripping invalid types and/or NaN values
  RCT_EXTERN id RCTJSONClean(id object);
  
  // Get MD5 hash of a string
  RCT_EXTERN NSString *RCTMD5Hash(NSString *string);
  
  // Check if we are currently on the main queue (not to be confused with
  // the main thread, which is not necessarily the same thing)
  // https://twitter.com/olebegemann/status/738656134731599872
  RCT_EXTERN BOOL RCTIsMainQueue(void);
  
  // Execute the specified block on the main queue. Unlike dispatch_async()
  // this will execute immediately if we're already on the main queue.
  RCT_EXTERN void RCTExecuteOnMainQueue(dispatch_block_t block);
  
  // Legacy function to execute the specified block on the main queue synchronously.
  // Please do not use this unless you know what you're doing.
  RCT_EXTERN void RCTUnsafeExecuteOnMainQueueSync(dispatch_block_t block);
  
  // Get screen metrics in a thread-safe way
  RCT_EXTERN CGFloat RCTScreenScale(void);
  RCT_EXTERN CGSize RCTScreenSize(void);
  
  // Round float coordinates to nearest whole screen pixel (not point)
  #if !TARGET_OS_OSX // TODO(macOS ISS#2323203)
  RCT_EXTERN CGFloat RCTRoundPixelValue(CGFloat value);
  RCT_EXTERN CGFloat RCTCeilPixelValue(CGFloat value);
  RCT_EXTERN CGFloat RCTFloorPixelValue(CGFloat value);
  #else // [TODO(macOS ISS#2323203)
  RCT_EXTERN CGFloat RCTRoundPixelValue(CGFloat value, CGFloat scale);
  RCT_EXTERN CGFloat RCTCeilPixelValue(CGFloat value, CGFloat scale);
  RCT_EXTERN CGFloat RCTFloorPixelValue(CGFloat value, CGFloat scale);
  #endif // ]TODO(macOS ISS#2323203)
  
  // Convert a size in points to pixels, rounded up to the nearest integral size
  RCT_EXTERN CGSize RCTSizeInPixels(CGSize pointSize, CGFloat scale);
  
  // Method swizzling
  RCT_EXTERN IMP RCTSwapClassMethods(Class cls, SEL original, SEL replacement); // TODO(OSS Candidate ISS#2710739)
  RCT_EXTERN IMP RCTSwapInstanceMethods(Class cls, SEL original, SEL replacement); // TODO(OSS Candidate ISS#2710739)
  
  // Module subclass support
  RCT_EXTERN BOOL RCTClassOverridesClassMethod(Class cls, SEL selector);
  RCT_EXTERN BOOL RCTClassOverridesInstanceMethod(Class cls, SEL selector);
  
  // Creates a standardized error object to return in callbacks
  RCT_EXTERN NSDictionary<NSString *, id> *RCTMakeError(NSString *message, id __nullable toStringify, NSDictionary<NSString *, id> *__nullable extraData);
  RCT_EXTERN NSDictionary<NSString *, id> *RCTMakeAndLogError(NSString *message, id __nullable toStringify, NSDictionary<NSString *, id> *__nullable extraData);
  RCT_EXTERN NSDictionary<NSString *, id> *RCTJSErrorFromNSError(NSError *error);
  RCT_EXTERN NSDictionary<NSString *, id> *RCTJSErrorFromCodeMessageAndNSError(NSString *code, NSString *message, NSError *__nullable error);
  
  // The default error code to use as the `code` property for callback error objects
  RCT_EXTERN NSString *const RCTErrorUnspecified;
  
  // Returns YES if React is running in a test environment
  RCT_EXTERN BOOL RCTRunningInTestEnvironment(void);
  
  #if !TARGET_OS_OSX // [TODO(macOS ISS#2323203)
  // Returns YES if React is running in an iOS App Extension
  RCT_EXTERN BOOL RCTRunningInAppExtension(void);
  #endif // ]TODO(macOS ISS#2323203)
  
  // Returns the shared UIApplication instance, or nil if running in an App Extension
  RCT_EXTERN UIApplication *__nullable RCTSharedApplication(void);
  
  #if !TARGET_OS_OSX // [TODO(macOS ISS#2323203)
  // Returns the current main window, useful if you need to access the root view
  // or view controller
  RCT_EXTERN UIWindow *__nullable RCTKeyWindow(void);
  
  // Returns the presented view controller, useful if you need
  // e.g. to present a modal view controller or alert over it
  RCT_EXTERN UIViewController *__nullable RCTPresentedViewController(void);
  
  // Does this device support force touch (aka 3D Touch)?
  RCT_EXTERN BOOL RCTForceTouchAvailable(void);
  #endif // ]TODO(macOS ISS#2323203)
  
  // Create an NSError in the RCTErrorDomain
  RCT_EXTERN NSError *RCTErrorWithMessage(NSString *message);
  
  // Convert nil values to NSNull, and vice-versa
  #define RCTNullIfNil(value) (value ?: (id)kCFNull)
  #define RCTNilIfNull(value) \
    ({ __typeof__(value) t = (value); (id)t == (id)kCFNull ? (__typeof(value))nil : t; })
  
  // Convert NaN or infinite values to zero, as these aren't JSON-safe
  RCT_EXTERN double RCTZeroIfNaN(double value);
  
  // Returns `0` and log special warning if value is NaN or INF.
  RCT_EXTERN double RCTSanitizeNaNValue(double value, NSString *property);
  
  // Convert data to a Base64-encoded data URL
  RCT_EXTERN NSURL *RCTDataURL(NSString *mimeType, NSData *data);
  
  // Gzip functionality - compression level in range 0 - 1 (-1 for default)
  RCT_EXTERN NSData *__nullable RCTGzipData(NSData *__nullable data, float level);
  
  // Returns the relative path within the main bundle for an absolute URL
  // (or nil, if the URL does not specify a path within the main bundle)
  RCT_EXTERN NSString *__nullable RCTBundlePathForURL(NSURL *__nullable URL);
  
  // Returns the Path of Library directory
  RCT_EXTERN NSString *__nullable RCTLibraryPath(void);
  
  // Returns the relative path within the library for an absolute URL
  // (or nil, if the URL does not specify a path within the Library directory)
  RCT_EXTERN NSString *__nullable RCTLibraryPathForURL(NSURL *__nullable URL);
  
  // Determines if a given image URL refers to a image in bundle
  RCT_EXTERN BOOL RCTIsBundleAssetURL(NSURL *__nullable imageURL);
  
  // Determines if a given image URL refers to a image in library
  RCT_EXTERN BOOL RCTIsLibraryAssetURL(NSURL *__nullable imageURL);
  
  // Determines if a given image URL refers to a local image
  RCT_EXTERN BOOL RCTIsLocalAssetURL(NSURL *__nullable imageURL);
  
  // Returns an UIImage for a local image asset. Returns nil if the URL
  // does not correspond to a local asset.
  RCT_EXTERN UIImage *__nullable RCTImageFromLocalAssetURL(NSURL *imageURL);
  
  // Only used in case when RCTImageFromLocalAssetURL fails to get an image
  // This method basically checks for the image in the bundle location, instead
  // of the CodePush location
  RCT_EXTERN UIImage *__nullable RCTImageFromLocalBundleAssetURL(NSURL *imageURL);
  
  // Creates a new, unique temporary file path with the specified extension
  RCT_EXTERN NSString *__nullable RCTTempFilePath(NSString *__nullable extension, NSError **error);
  
  // Get RGBA components of CGColor
  RCT_EXTERN void RCTGetRGBAColorComponents(CGColorRef color, CGFloat rgba[_Nonnull 4]); // TODO(OSS Candidate ISS#2710739)
  
  // Converts a CGColor to a hex string
  RCT_EXTERN NSString *RCTColorToHexString(CGColorRef color);
  
  #if !TARGET_OS_OSX // [TODO(macOS ISS#2323203)
  // Get standard localized string (if it exists)
  RCT_EXTERN NSString *RCTUIKitLocalizedString(NSString *string);
  #endif // ]TODO(macOS ISS#2323203)
  
  // URL manipulation
  RCT_EXTERN NSString *__nullable RCTGetURLQueryParam(NSURL *__nullable URL, NSString *param);
  RCT_EXTERN NSURL *__nullable RCTURLByReplacingQueryParam(NSURL *__nullable URL, NSString *param, NSString *__nullable value);
  
  // Given a string, drop common RN prefixes (RCT, RK, etc.)
  RCT_EXTERN NSString *RCTDropReactPrefixes(NSString *s);
  
  RCT_EXTERN BOOL RCTUIManagerTypeForTagIsFabric(NSNumber *reactTag);
  
  NS_ASSUME_NONNULL_END
  