react-native/ReactKit/Base/RCTUtils.h

52 lines
1.6 KiB
Objective-C

// Copyright 2004-present Facebook. All Rights Reserved.
#import <tgmath.h>
#import <CoreGraphics/CoreGraphics.h>
#import <Foundation/Foundation.h>
#import "RCTAssert.h"
#ifdef __cplusplus
extern "C" {
#endif
// Utility functions for JSON object <-> string serialization/deserialization
NSString *RCTJSONStringify(id jsonObject, NSError **error);
id RCTJSONParse(NSString *jsonString, NSError **error);
// Get MD5 hash of a string (TODO: currently unused. Remove?)
NSString *RCTMD5Hash(NSString *string);
// Get screen metrics in a thread-safe way
CGFloat RCTScreenScale(void);
CGSize RCTScreenSize(void);
// Round float coordinates to nearest whole screen pixel (not point)
CGFloat RCTRoundPixelValue(CGFloat value);
CGFloat RCTCeilPixelValue(CGFloat value);
CGFloat RCTFloorPixelValue(CGFloat value);
// Get current time, for precise performance metrics
NSTimeInterval RCTTGetAbsoluteTime(void);
// Method swizzling
void RCTSwapClassMethods(Class cls, SEL original, SEL replacement);
void RCTSwapInstanceMethods(Class cls, SEL original, SEL replacement);
// Module subclass support
BOOL RCTClassOverridesClassMethod(Class cls, SEL selector);
BOOL RCTClassOverridesInstanceMethod(Class cls, SEL selector);
// Enumerate all classes that conform to NSObject protocol
void RCTEnumerateClasses(void (^block)(Class cls));
// Creates a standardized error object
// TODO(#6472857): create NSErrors and automatically convert them over the bridge.
NSDictionary *RCTMakeError(NSString *message, id toStringify, NSDictionary *extraData);
NSDictionary *RCTMakeAndLogError(NSString *message, id toStringify, NSDictionary *extraData);
#ifdef __cplusplus
}
#endif