> On 30 Jan 2015, at 08:26, Graham Cox <graham....@bigpond.com> wrote:
>
>
>> On 30 Jan 2015, at 11:12 am, Roland King <r...@rols.org> wrote:
>>
>> I don't see this in a quick test I just typed into Xcode. I did this in the
>> .h file
>>
>> @interface RKControl : NSControl
>> @property SEL action;
>> @property (weak) id target;
>> @end
>>
>>
>> and .m
>>
>> #import "RKControl.h"
>> @implementation RKControl
>> {
>> SEL myAction;
>> id __weak myTarget;
>> }
>>
>> @synthesize action=myAction;
>> @synthesize target=myTarget;
>> @end
>>
>> and I get no warnings or errors and the properties I believe match the
>> originals. I dropped one on a project as an NSView, set the class, connected
>> up a random target/action and debugged viewDidLoad to check the control was
>> there and had a correct target/action.
>>
>> What are you seeing which is different? If you are having a problem then
>> does it work if you don't use synthesize and go back to the good old
>> -(thing)value, -(void)setValue:(thing)value?
>
>
> Hmmm, that's odd. My code is nearly identical, but for each property I get
> this warning ("semantic issue"):
>
>
> 'atomic' attribute on property 'action' does not match the property inherited
> from 'NSControl'
> 'atomic' attribute on property 'target' does not match the property inherited
> from 'NSControl'
>
> The only difference I see is that I'm declaring my ivars as part of the
> @interface, not the @implementation - is that a new thing? I didn't know you
> could do that (though it makes sense).
>
> --Graham
>
I can get that warning too, but only if I explicitly declare the property
'nonatomic', like this
@property (readwrite, nonatomic ) SEL action; // 'atomic' attribute on
property 'action' does not match the property inherited from 'NSControl'
if I declare them specifically atomic (which I thought was the default) then it
stops whining. Error message could be more accurate as in 'nonatomic' attribute
on ... etc.
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