@interface IsNilException : NSException
@end
@interface IsEmptyException : NSException
@end
@implementation IsNilException : NSException
@end
@implementation IsEmptyException : NSException
@end
+(void) throwWhenNilOrEmptyArray: (NSArray *) array {
if (array == nil) {
@throw [IsNilException
exceptionWithName:@"IsNilException"
reason:@"Array is nil"
userInfo:nil];
}
if (array.count == 0) {
@throw [IsEmptyException
exceptionWithName:@"IsEmptyException"
reason:@"Array is empty"
userInfo:nil];
}
}
@try {
[self throwWhenNilOrEmptyArray:nil];
}
@catch (NSException *exception) {
NSLog(@"%@", @"Error happened");
}