Unsurprisingly, the compiler complains that
"warning: no '+performClassMethodWithArg:' method found".
Is there some way to type that parameter as "a class that supports this
class method"? If it were an object, I could use a protocol. Is there an
equivalent for classes?
Although I'd rather not be restricted to a specific class hierarchy, I did try
- (void) someMethod: (MyClass) class someArg: (id) arg
but the compiler complained that
"error: can not use an object as parameter to a method"
Any suggestions?
As to why? performClassMethodWithArg is actually a constructor that
creates a new object of type 'class' using 'arg' as input. It's in the
middle of a loop (ie input is an array of arg of varying type but
conforming to a particular protocol) that normalises and extends 'arg'.
While the specific types of 'class' and 'arg' vary I want to perform the
same operation on them.
--
Andrew White
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