156 lines
5.0 KiB
Objective-C
156 lines
5.0 KiB
Objective-C
/**
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* Copyright (c) 2015-present, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*/
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#import <Foundation/Foundation.h>
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#import <React/RCTDefines.h>
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/*
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* Defined in RCTUtils.m
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*/
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RCT_EXTERN BOOL RCTIsMainQueue(void);
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/**
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* This is the main assert macro that you should use. Asserts should be compiled out
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* in production builds. You can customize the assert behaviour by setting a custom
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* assert handler through `RCTSetAssertFunction`.
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*/
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#ifndef NS_BLOCK_ASSERTIONS
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#define RCTAssert(condition, ...) do { \
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if ((condition) == 0) { \
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_RCTAssertFormat(#condition, __FILE__, __LINE__, __func__, __VA_ARGS__); \
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if (RCT_NSASSERT) { \
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[[NSAssertionHandler currentHandler] handleFailureInFunction:@(__func__) \
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file:@(__FILE__) lineNumber:__LINE__ description:__VA_ARGS__]; \
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} \
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} \
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} while (false)
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#else
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#define RCTAssert(condition, ...) do {} while (false)
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#endif
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RCT_EXTERN void _RCTAssertFormat(
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const char *, const char *, int, const char *, NSString *, ...
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) NS_FORMAT_FUNCTION(5,6);
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/**
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* Report a fatal condition when executing. These calls will _NOT_ be compiled out
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* in production, and crash the app by default. You can customize the fatal behaviour
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* by setting a custom fatal handler through `RCTSetFatalHandler`.
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*/
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RCT_EXTERN void RCTFatal(NSError *error);
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/**
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* The default error domain to be used for React errors.
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*/
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RCT_EXTERN NSString *const RCTErrorDomain;
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/**
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* JS Stack trace provided as part of an NSError's userInfo
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*/
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RCT_EXTERN NSString *const RCTJSStackTraceKey;
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/**
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* Raw JS Stack trace string provided as part of an NSError's userInfo
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*/
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RCT_EXTERN NSString *const RCTJSRawStackTraceKey;
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/**
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* Name of fatal exceptions generated by RCTFatal
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*/
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RCT_EXTERN NSString *const RCTFatalExceptionName;
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/**
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* A block signature to be used for custom assertion handling.
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*/
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typedef void (^RCTAssertFunction)(NSString *condition,
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NSString *fileName,
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NSNumber *lineNumber,
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NSString *function,
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NSString *message);
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typedef void (^RCTFatalHandler)(NSError *error);
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/**
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* Convenience macro for asserting that a parameter is non-nil/non-zero.
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*/
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#define RCTAssertParam(name) RCTAssert(name, @"'%s' is a required parameter", #name)
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/**
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* Convenience macro for asserting that we're running on main queue.
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*/
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#define RCTAssertMainQueue() RCTAssert(RCTIsMainQueue(), \
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@"This function must be called on the main queue")
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/**
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* Convenience macro for asserting that we're running off the main queue.
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*/
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#define RCTAssertNotMainQueue() RCTAssert(!RCTIsMainQueue(), \
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@"This function must not be called on the main queue")
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/**
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* These methods get and set the current assert function called by the RCTAssert
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* macros. You can use these to replace the standard behavior with custom assert
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* functionality.
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*/
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RCT_EXTERN void RCTSetAssertFunction(RCTAssertFunction assertFunction);
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RCT_EXTERN RCTAssertFunction RCTGetAssertFunction(void);
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/**
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* This appends additional code to the existing assert function, without
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* replacing the existing functionality. Useful if you just want to forward
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* assert info to an extra service without changing the default behavior.
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*/
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RCT_EXTERN void RCTAddAssertFunction(RCTAssertFunction assertFunction);
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/**
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* This method temporarily overrides the assert function while performing the
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* specified block. This is useful for testing purposes (to detect if a given
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* function asserts something) or to suppress or override assertions temporarily.
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*/
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RCT_EXTERN void RCTPerformBlockWithAssertFunction(void (^block)(void), RCTAssertFunction assertFunction);
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/**
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These methods get and set the current fatal handler called by the RCTFatal method.
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*/
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RCT_EXTERN void RCTSetFatalHandler(RCTFatalHandler fatalHandler);
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RCT_EXTERN RCTFatalHandler RCTGetFatalHandler(void);
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/**
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* Get the current thread's name (or the current queue, if in debug mode)
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*/
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RCT_EXTERN NSString *RCTCurrentThreadName(void);
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/**
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* Helper to get generate exception message from NSError
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*/
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RCT_EXTERN NSString *RCTFormatError(NSString *message, NSArray<NSDictionary<NSString *, id> *> *stacktrace, NSUInteger maxMessageLength);
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/**
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* Convenience macro to assert which thread is currently running (DEBUG mode only)
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*/
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#if DEBUG
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#define RCTAssertThread(thread, format...) \
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_Pragma("clang diagnostic push") \
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_Pragma("clang diagnostic ignored \"-Wdeprecated-declarations\"") \
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RCTAssert( \
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[(id)thread isKindOfClass:[NSString class]] ? \
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[RCTCurrentThreadName() isEqualToString:(NSString *)thread] : \
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[(id)thread isKindOfClass:[NSThread class]] ? \
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[NSThread currentThread] == (NSThread *)thread : \
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dispatch_get_current_queue() == (dispatch_queue_t)thread, \
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format); \
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_Pragma("clang diagnostic pop")
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#else
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#define RCTAssertThread(thread, format...) do { } while (0)
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#endif
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