Switch Object in Objective-C

gistfile1.m

BOOL switchObject(id anObject, ...)
{
    va_list args;
    va_start(args, anObject);
    
    id value = nil;
    BOOL matchFound = NO;
    
    while ( (value = va_arg(args,id)) )
    {
        void (^block)(void) = va_arg(args,id);
        if ([anObject isEqual:value])
        {
            block();
            matchFound = YES;
            break;
        }
    }
    
    va_end(args);
    return matchFound;
}

/* Usage */

switchObject(popoverController,
                  sexoPopover, ^{
                      [sexo setPlaceholder:[sexoArray objectAtIndex:sexoSelected]];
                  },
                  estadoFamiliarPopover, ^{
                      [estadoFamiliar setPlaceholder:[estadoFamiliarArray objectAtIndex:estadoFamiliarSelected]];
                  },
                  procedenciaFondosPopover, ^{
                      [procedenciaFondos setPlaceholder:[procedenciaFondosArray objectAtIndex:procedenciaFondosSelected]];
                  },
                  usoFondosPopover, ^{
                      [usoFondos setPlaceholder:[usoFondosArray objectAtIndex:usoFondosSelected]];
                  },
                  profesionPopover, ^{
                      [profesion setPlaceholder:[profesionArray objectAtIndex:profesionSelected]];
                  },
                  nil);