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Re: ARC conversion issue problem with Xcode 4.2
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Re: ARC conversion issue problem with Xcode 4.2


  • Subject: Re: ARC conversion issue problem with Xcode 4.2
  • From: Sean Todd <email@hidden>
  • Date: Sun, 16 Oct 2011 12:13:27 -0500

On Oct 16, 2011, at 1:02 AM, Quincey Morris wrote:

> On Oct 15, 2011, at 18:02 , Sean Todd wrote:
>
>> I am trying to convert a Core Data app which uses garbage collection to ARC. When I run the refactoring tool, I see issues like:
>>
>> Semantic Issue: Type of property 'person' does not match type of accessor 'setPerson:'
>
> It's really, really important when asking a question like this to tell us which line the error message is issued for.

Sorry for the omission.  It was for the line of the @property declaration.

>> The relevant  declaration code:
>>
>> @class ABPerson;
>>
>> @interface XG2Student :  NSManagedObject {
>> }
>>
>> @property (nonatomic, retain) ABPerson * person;
>>
>> - (ABPerson *)person;
>> - (void)setPerson:(ABPerson *)aPerson;
>
> I'm guessing that the problem is this totally unnecessary redeclaration of the property accessors. Just omit the above 2 lines -- they serve no purpose whatsoever.

Thanks. Removing the getter/setter declarations fixed the problem. Still not sure why the error message stated that the type of the property did not match the type of the setter accessor though?

>> The relevant implementation:
>>
>> @implementation XG2Student
>>
>> @dynamic person;
>>
>> /* custom getter omitted for brevity */
>>
>> - (void)setPerson:(ABPerson *)aPerson {
>>
>> [self willChangeValueForKey:XG2PersonKey];
>> [self setPrimitivePerson:aPerson];
>> [self didChangeValueForKey:XG2PersonKey];
>>
>> self.personUID = [aPerson uniqueId];	// this is the value that is persisted
>> }
>
>

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References: 
 >ARC conversion issue problem with Xcode 4.2 (From: Sean Todd <email@hidden>)
 >Re: ARC conversion issue problem with Xcode 4.2 (From: Quincey Morris <email@hidden>)

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