quakeforge/tools/qfcc/test/sendv.r
Bill Currie b668759b7d [qfcc] Add a very basic attribute system
Ruamoko passes va_list (@args) through the ... parameter (as such), but
IMP uses ... to defeat parameter type and count checking and doesn't
want va_list. While possibly not the best solution, adding a no_va_list
flag to function types and skipping ex_args entirely does take care of
the problem without hard-coding anything specific to IMP.

The system currently just sets some bits in the type specifier (the
attribute list should probably be carried around with the specifier),
but it gets the job done for now, and at least gets things started.
2022-02-02 23:51:37 +09:00

58 lines
1,004 B
R

string got;
SEL (string name) sel_get_uid = #0;
@param (id receiver, SEL op, @va_list args) obj_msg_sendv = #0;
id (Class class) class_create_instance = #0;
int obj_increment_retaincount (id object) = #0;
void
send (id obj, string cmd, string str)
{
@static @param params[3];
@va_list va_list = {3, params};
SEL sel = sel_get_uid (cmd);
params[0].pointer_val = obj;
params[1].pointer_val = sel;
params[2].string_val = str;
obj_msg_sendv (obj, sel, va_list);
}
@interface Object //just so the runtime doesn't complain
{
Class isa;
}
+alloc;
-init;
-catch:(string) it;
@end
int
main ()
{
id obj = [[Object alloc] init];
send (obj, "catch:", "it");
return !(got == "it");
}
@implementation Object
+alloc
{
return class_create_instance (self);
}
-init
{
obj_increment_retaincount (self);
return self;
}
-catch:(string) it
{
got = it;
return self;
}
@end
@attribute(no_va_list) id (id receiver, SEL op, ...) obj_msgSend = #0;
void __obj_exec_class (struct obj_module *msg) = #0;