Re: Methods as dictionary keys using invocation

[Richard Frith-Macdonald]

On Sunday, July 6, 2003, at 10:53 AM, Stefan Urbanek wrote:

> Hi,
>
> I have an object (prototype) containing a dictionary. I want to access 
> keys in that dictionary using messages. So if i do:
>    [proto someKey];
> it is analogous to:
>    [[proto dictionary] objectForKey:@"someKey"];
>
> However, this used to work some time ago, but now I am getting:
>    vacall: va_start type 6 and va_return type 14 disagree.

Try commenting out the call to gs_find_best_typed_sel() in 
gs_objc_msg_forward() in GSFFCallInvocation.m

Ideally, the runtime should be passing gs_objc_msg_forward() the 
correct type information.
As the objc runtime doesn't necessarily do so, the 
gs_find_best_typed_sel() guesses,
and is probably guessing wrong.
I don't know whether it's generally better to guess or not ... the 
ideal solution is to modify
gcc, but that's not going to happen fast.