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Re: call selector @"mySelector"

On Sep 30, 2005, at 7:46 PM, Tom Harrington wrote:

On 9/30/05, Raffael Cavallaro <email@hidden> wrote:

On Sep 30, 2005, at 3:27 PM, Sherm Pendley wrote:

there's NSInvocation. It's more complex, but it's capable of
handling any number and type of arguments, and any type of return
value.


"NSInvocation does not support invocations of methods with either
variable numbers of arguments or union arguments."

from <http://developer.apple.com/documentation/Cocoa/Reference/
Foundation/ObjC_classic/Classes/NSInvocation.html>

Yes, but "any number...of arguments" != "variable numbers of arguments".

Quite right, but I shouldn't have said "any". "any ... type" != "does not support ... union arguments".

Although it's a basically a moot point anyway - I can't recall any instance where I've seen a union passed directly by value, i.e. foo (union_var). It's generally passed either by resolving it to one of its specific types, i.e. foo(union_var.int_val), or by passing a pointer, i.e. foo(&union_var).

sherm--

Cocoa programming in Perl: http://camelbones.sourceforge.net
Hire me! My resume: http://www.dot-app.org

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References: 
 >call selector @"mySelector" (From: Aaron Wallis <email@hidden>)
 >Re: call selector @"mySelector" (From: Jim Correia <email@hidden>)
 >Re: call selector @"mySelector" (From: Sherm Pendley <email@hidden>)
 >Re: call selector @"mySelector" (From: Raffael Cavallaro <email@hidden>)
 >Re: call selector @"mySelector" (From: Tom Harrington <email@hidden>)



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