Re: Is selector in protocol?
Re: Is selector in protocol?
- Subject: Re: Is selector in protocol?
- From: "John C. Randolph" <email@hidden>
- Date: Wed, 24 Oct 2001 14:54:37 -0700
On Wednesday, October 24, 2001, at 01:59 PM, email@hidden
wrote:
On Wednesday, October 24, 2001, at 10:15 PM, Paul Mix wrote:
Is there a way to tell if a particular selector is declared in a
formal protocol? I'd like to use forward-invocation on an object,
determining which object to forward to based on which protocol the
forwarded-selector is declared in.
Look at "/usr/include/Protocol.h".
Actually, /usr/include/objc/protocol.h.
How about
if([@protocol(someProtocol) descriptionForInstanceMethod:theSelector])
I don't think this is legal. @protocol is a compiler directive to begin
a protocol declaration, like @interface or @implementation. It's not
like @selector or @encode.
That line should be:
if([someProtocol descriptionForInstanceMethod:theSelector])
-jcr
"I fear all we have done is to awaken a sleeping giant and fill him with
a terrible resolve." -Admiral Isoroku Yamamoto, Dec 7, 1941.