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(nil_method): Don't define it, import it from sendmsg.c. 

(arglist_t): Data-definition changed.

From-SVN: r5204
This commit is contained in:
Kresten Krab Thorup 1993-08-24 10:00:49 +00:00
parent 62b9a71206
commit 2224b8ccb3
1 changed files with 17 additions and 30 deletions
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47
gcc/objc/objc.h
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@ -123,51 +123,38 @@ typedef struct objc_protocol {
struct objc_method_description_list *instance_methods, *class_methods;
} Protocol;
#else
#else /* __OBJC__ */
@class Protocol;
#endif
typedef void* retval_t; /* return value */
typedef void(*apply_t)(void); /* function pointer */
typedef union {
char *arg_ptr;
char arg_regs[sizeof (char*)];
} *arglist_t; /* argument frame */
#if defined(REG_ARGS) || defined(STACK_ARGS)
typedef struct {
char* arg_pointer;
#ifdef STRUCT_RETURN
void* struct_return;
#endif
#ifdef REG_ARGS
void* regs[2];
#endif
} *arglist_t;
#ifdef REG_ARGS
#define __objc_frame_receiver(FRAME) (FRAME)->regs[0]
#define __objc_frame_selector(FRAME) ((SEL)(FRAME)->regs[1])
#else
#define __objc_frame_receiver(FRAME) ((id*)(FRAME)->arg_pointer)[0]
#define __objc_frame_selector(FRAME) ((SEL*)(FRAME)->arg_pointer)[1]
#endif
#else
typedef void* arglist_t;
#endif
#if defined(__OBJC__)
#include "objc/sarray.h"
static id nil_method(id rcv, SEL op, ...) { return rcv; }
/*
This is the function called when messages are send to nil. You may
set a breakpoint in your debugger at this function to catch messages
too nil.
*/
extern id nil_method(id rcv, SEL op, ...);
/*
The messager is inlined, thus it is defined here directly. The
inlining is quite time-consuming when optimizing. This will be
taken care of later by hand-coding the messager in the compiler.
*/
extern __inline__ IMP
objc_msg_lookup(id receiver, SEL op)
{
if(receiver)
return sarray_get(receiver->class_pointer->dtable, (size_t) op);
return sarray_get(receiver->class_pointer->dtable, (size_t)(op));
else
return nil_method;
}