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protocol and properties
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protocol and properties


  • Subject: protocol and properties
  • From: Martin Hewitson <email@hidden>
  • Date: Sun, 28 Nov 2010 09:15:16 +0100

Dear list,

Suppose I have a formal protocol which defines a method:

- (NSArray*)objects;

Then I implement a class which implements this protocol. To do that I make a property:

@property (nonatomic, readwrite, retain) NSArray * objects;

and put the appropriate synthesize statement in the implementation.

I get compiler warnings that this class doesn't implement the protocol. It seems it doesn't take the synthesized getter as being an implementation of the -objects method.

I also tried explicitly adding the implementation, but the warning remains:

- (NSArray*) objects
{
  return objects;
}

Am I doing something wrong here, or is it not possible to use a property to satisfy a protocol?

Best wishes,

Martin


~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Martin Hewitson
Albert-Einstein-Institut
Max-Planck-Institut fuer
    Gravitationsphysik und Universitaet Hannover
Callinstr. 38, 30167 Hannover, Germany
Tel: +49-511-762-17121, Fax: +49-511-762-5861
E-Mail: email@hidden
WWW: http://www.aei.mpg.de/~hewitson
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~





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