Re: Protocol + Delegate = conflict types
Yep, that made the trick!
Thanks a lot, chr
On Fri, Jan 16, 2009 at 9:07 AM, Quincey Morris
wrote:
> On Jan 16, 2009, at 00:38, Christian Giordano wrote:
>
>> // RemoteLoader.h
>> @protocol RemoteLoaderDelegate
>> -(void) onLoadingFail:(RemoteLoader *)loader;
>> -(void) onLoadingFinish:(RemoteLoader *)loader;
>> -(void) onLoadingProgress:(RemoteLoader *)loader;
>> @end
>>
>> @interface RemoteLoader : NSObject
>> {
>>...
>> }
>> ...
>> @end
>>
>> I get: "error: syntax error before 'RemoteLoader'"
>
> Your protocol has a forward reference, so this:
>
>> @class RemoteLoader;
>> @protocol RemoteLoaderDelegate
>> -(void) onLoadingFail:(RemoteLoader *)loader;
>> -(void) onLoadingFinish:(RemoteLoader *)loader;
>> -(void) onLoadingProgress:(RemoteLoader *)loader;
>> @end
>
> should take care of it.
>
>
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Re: Protocol + Delegate = conflict types
On Jan 16, 2009, at 00:38, Christian Giordano wrote:
// RemoteLoader.h
@protocol RemoteLoaderDelegate
-(void) onLoadingFail:(RemoteLoader *)loader;
-(void) onLoadingFinish:(RemoteLoader *)loader;
-(void) onLoadingProgress:(RemoteLoader *)loader;
@end
@interface RemoteLoader : NSObject
{
...
}
...
@end
I get: "error: syntax error before 'RemoteLoader'"
Your protocol has a forward reference, so this:
@class RemoteLoader;
@protocol RemoteLoaderDelegate
-(void) onLoadingFail:(RemoteLoader *)loader;
-(void) onLoadingFinish:(RemoteLoader *)loader;
-(void) onLoadingProgress:(RemoteLoader *)loader;
@end
should take care of it.
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Protocol + Delegate = conflict types
Hi guys, I'm trying to implement the Delegate pattern and I would like
a delegate that works like NSURLConnection where any method of the
delegate returns itself. The problem I have is that if I specify its
type in the methods parameters instead of "id":
// RemoteLoader.h
@protocol RemoteLoaderDelegate
-(void) onLoadingFail:(RemoteLoader *)loader;
-(void) onLoadingFinish:(RemoteLoader *)loader;
-(void) onLoadingProgress:(RemoteLoader *)loader;
@end
@interface RemoteLoader : NSObject
{
...
}
...
@end
I get: "error: syntax error before 'RemoteLoader'"
If I leave "id" in the protocol definition:
@protocol RemoteLoaderDelegate
-(void) onLoadingFail:(id)loader;
-(void) onLoadingFinish:(id)loader;
-(void) onLoadingProgress:(id)loader;
@end
but leave the typed parameter in the implemented methods:
-(void) onLoadingFail:(RemoteLoader *)loader
{
...
}
I get: "warning: conflicting types for
'-(void)onLoadingFail:(RemoteLoader *)loader'" but it works.
Is there a way to implement this typed delegation without warning errors?
Thanks for any suggestion, chr
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