Re: ObjectiveC runtime question: easy solution!

[Lloyd Dupont]

I could write something like that:

 

DLL_EXPORT void* objcsharp_msg_send(id obj, SEL sel, ...)
{
 void* args = __builtin_apply_args();
 IMP imp = objc_msg_lookup(obj, sel);
 size_t argsize = 20 * sizeof(int);

 __builtin_return ( __builtin_apply((void(*)())imp, args, argsize) );
}

I have to look at some code to find the correct value of argsize.

but that's the simpliest solution, by far!

 

----- Original Message -----

From: Lloyd Dupont

To: Lloyd Dupont ; GNUstep Discussion

Sent: Thursday, May 19, 2005 1:42 PM

Subject: Re: ObjectiveC runtime question

I'm trying something like

DLL_EXPORT void* objcsharp_msg_send(id obj, SEL sel, ...)
{
  return objc_msg_sendv(obj, sel, __builtin_apply_args ());
}

but that's apparently not correct.....

 

----- Original Message -----

From: Lloyd Dupont

To: GNUstep Discussion

Sent: Thursday, May 19, 2005 12:14 PM

Subject: ObjectiveC runtime question

I'm trying to write a binding from an other language to ObjectiveC

I was thinking to relay method call by using something like

objc_msg_sendv(id, SEL, ...);

 

but it's not exactely the case it's

objc_msg_sendv(id, SEL, arglist_t);

 

which mean it doesn't work like a vararg function how could I translate that?

 

I was thinking of something like:

 

myobjc_msg_send(id obj, SEL mtdh, ...)

{

    objc_msg_sendv(obj, mthd, arglist);

}

 

now the question is how to generate a arglist_t from a va_list?

or any other suggestion?

---

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