I am getting a crash in my class _PRLog.m in the method below -
@property (nonatomic, strong) NSNumber* logID;
- (int16_t)logIDValue
{
NSNumber *result = [self logID];
return [result shortValue]; // ---> ON THIS LINE
}
logID is being fetched from the Core Data which is saving attribute of type Integer-16.
I have the crashlog stated below -
Exception Type: EXC_CRASH (SIGABRT)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Exception Note: EXC_CORPSE_NOTIFY
Triggered by Thread: 0
Last Exception Backtrace:
0 CoreFoundation 0x18db28300 __exceptionPreprocess + 228 (NSException.m:199)
1 libobjc.A.dylib 0x18d83cc1c objc_exception_throw + 60 (objc-exception.mm:565)
2 CoreFoundation 0x18da26a90 -[NSObject(NSObject) doesNotRecognizeSelector:] + 144 (NSObject.m:144)
3 CoreFoundation 0x18db2ca60 ___forwarding___ + 1328 (NSForwarding.m:3520)
4 CoreFoundation 0x18db2ed60 _CF_forwarding_prep_0 + 96
5 DreamMapper 0x102bb0978 -[_PRLog logIDValue] + 48 (_PRLog.m:47)
6 DreamMapper 0x102c07aec -[PRDevice logForLogID:] + 188 (PRDevice.m:11)
7 DreamMapper 0x102be7c18 __48-[PRDeviceManager createDevice:success:failure:]_block_invoke_3 + 612 (PRDeviceManager.m:113)
8 libdispatch.dylib 0x18d7c6ec4 _dispatch_call_block_and_release + 32 (init.c:1408)
9 libdispatch.dylib 0x18d7c833c _dispatch_client_callout + 20 (object.m:495)
10 libdispatch.dylib 0x18d7d4600 _dispatch_main_queue_callback_4CF + 832 (inline_internal.h:2484)
11 CoreFoundation 0x18daa36b0 __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 16 (CFRunLoop.c:1749)
12 CoreFoundation 0x18da9e2c8 __CFRunLoopRun + 1708 (CFRunLoop.c:3069)
13 CoreFoundation 0x18da9d8f4 CFRunLoopRunSpecific + 480 (CFRunLoop.c:3192)
14 GraphicsServices 0x197eb4604 GSEventRunModal + 164 (GSEvent.c:2246)
15 UIKitCore 0x191c71358 UIApplicationMain + 1944 (UIApplication.m:4823)
16 DreamMapper 0x102c13690 main + 88 (main.m:8)
17 libdyld.dylib 0x18d9192dc start + 4
I am guessing based on this crash log that the code crashes only when it is unable to process the shortValue of result i.e. my saved logID. However, I tested the code by passing nil for result, and it still doesn't seem to crash. I takes 0 as the shortValue.
Can someone help me figure out what could be the probable cause of this crash?