Overview

TICDSError is a utility class to generate NSError objects with certain characteristics.

Any error generated by one of the calls to TICDSError will be an instance of TICDSError. The only difference between NSError and TICDSError is that it overrides the description method to show the entire contents of the error’s userInfo dictionary.

TICDSError can optionally include a stack trace in every error object it generates. Call [TICDSError setIncludeStackTraceInErrors:] and pass YES before generating any errors to enable this option. Obviously, because of the way these are generated, the stack trace will include the methods used to generate the error.

With includesStackTraceInErrors turned on, examining an error using NSLog(@"%@", someError) will display output similar to the following:

 Error Domain=com.timisted.ticoredatasync Code=2 UserInfo=0x10064f1a0 "File Manager error"  
 User Info:{  
 NSLocalizedDescription = "File Manager error";  
 kTICDSErrorClassAndMethod = "[TICDSFileManagerBasedVacuumOperation findOutLeastRecentClientSyncDate]";  
 NSUnderlyingErrorKey = "Error Domain=NSCocoaErrorDomain Code=256 UserInfo=0x100649400 \"The file couldn\U2019t be opened.\" Underlying Error=(Error Domain=NSOSStatusErrorDomain Code=-2111 \"The operation couldn\U2019t be completed. (OSStatus error -2111.)\")";  
 kTICDSStackTrace =     (  
 "0   ShoppingListMac                     0x000000010000b08e [TICDSError errorWithCode:underlyingError:userInfo:classAndMethod:] + 590",  
 "1   ShoppingListMac                     0x000000010000ae38 [TICDSError errorWithCode:underlyingError:classAndMethod:] + 72",  
 "2   ShoppingListMac                     0x000000010003ae46 [TICDSFileManagerBasedVacuumOperation findOutLeastRecentClientSyncDate] + 310",  
 "3   ShoppingListMac                     0x000000010003a203 [TICDSVacuumOperation beginFindingOutLeastRecentClientSyncDate] + 211",  
 "4   ShoppingListMac                     0x000000010003a126 [TICDSVacuumOperation main] + 54",  
 "5   ShoppingListMac                     0x000000010000b410 [TICDSOperation start] + 368",  
 "6   Foundation                          0x00007fff80138ae7 __doStart2 + 97",  
 "7   libSystem.B.dylib                   0x00007fff84fdb284 _dispatch_call_block_and_release + 15",  
 "8   libSystem.B.dylib                   0x00007fff84fb97f1 _dispatch_worker_thread2 + 239",  
 "9   libSystem.B.dylib                   0x00007fff84fb9128 _pthread_wqthread + 353",  
 "10  libSystem.B.dylib                   0x00007fff84fb8fc5 start_wqthread + 13"  
 );  
 }