Re: NSMenuItem protocol and incompatible types.

FROM : Jakob Olesen
DATE : Tue Aug 01 09:35:02 2006

On 31/07/2006, at 13.58, Fredrik Olsson wrote:

> Even typecasting as;
> NSMenuItem *foo = (id <NSMenuItem>)[barMenu itemAtIndex:baz];
> Gives the same warning. Requiring the typecast when depreciating 
> the protocol seems strange to begin with. What am I missing here?


[NSMenu itemAtIndex:] is declared as

- (id <NSMenuItem>)itemAtIndex:(int)index;

in both the 10.3.9 and 10.4u SDKs, so your cast is completely 
redundant. Did you mean to write:

NSMenuItem *foo = (NSMenuItem*)[barMenu itemAtIndex:baz];

?

Anyway, like Matt, I get no warnings without the cast.

Are you subclassing NSMenu and changing the return type? That' s a no 
no.