Re: Strange XCode Warning
Re: Strange XCode Warning
- Subject: Re: Strange XCode Warning
- From: Dave <email@hidden>
- Date: Tue, 15 Sep 2015 18:48:24 +0100
Class<ProtocolX> was allowable and would cause the compiler to generate a warning if “MyClass” does not conform to “ProtocolX”, e.g.
I’ve never seen that used before … which doesn’t prove it isn’t real, but I’m suspicious. Have you tested whether it actually triggers such a warning?
I just tried it now with XCode 6.4 and you’re right, it doesn’t generate a warning.
I’m 90% sure I’ve used this in the past and it worked.
If this isn’t part of Objective-C then I can’t think why not? Seems like a good thing to have and no reason why it couldn’t/shouldn’t work that I can think of?
This fixes it:
if ([(Class)theDetailViewClass conformsToProtocol:@protocol(LTWDetailViewProtocol)] == NO)
Yeah, that would imply that the compiler sees “Class<ProtocolX>” as an instance type, not a class.
I’m surprised it doesn’t give an error or a warning for this, the fact it didn’t led me to believe that it was valid Objective-C.
Thanks a lot Dave
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