include/class.h File Reference

#include <stdarg.h>
#include <sys/types.h>
#include <string.h>
#include <assert.h>
#include "interface.h"

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Classes
struct	class
Defines
#define	_ISOC99_SOURCE
#define	CLASS_MAGIC   0xFEFE
#define	CLASS(name)
#define	EXTENDS(parent)   const char _[sizeof(struct c_##parent)]
#define	_NULL   NULL
#define	CREATE_CLASS(name, _parent,...)
#define	_CALL(object, _iface, method,...)
#define	CALL(object, _iface, method,...)
#define	RETCALL(object, _iface, method, ret,...)
#define	IFACE_GET(class, iface)   (interfaceGet(&((class)->impl),(iface)))
#define	IFACE_EXISTS(class, iface)   (NULL != IFACE_GET((class),(iface)))
#define	HAS_PARENT(class)   (NULL != ((class)->parent))
Typedefs
typedef void(*	fptr_classInit )(void)
typedef struct class *	class_ptr
Functions
void *	class_getInterface (class_ptr *, iface_ptr)
class_ptr	class_getClass (void *)

---

Define Documentation

#define _CALL	(		object,
			_iface,
			method,
			...
	)

Value:

class_ptr           class = class_getClass((object));                     \
        struct i_##_iface * iface;                                                \
        if (class->init)        class->init();                                        \
        iface = (struct i_##_iface *)class_getInterface(&class, &i_##_iface);     \
        while ((NULL == iface || NULL == iface->method) && HAS_PARENT(class)) {   \
                class = class->parent;                                                \
                if (class->init)        class->init();                                    \
                iface = (struct i_##_iface *)class_getInterface(&class, &i_##_iface); \
        };                                                                        \
        assert(NULL != iface->method);

: actually i use gcc feature ## for variadoc... think about a way to make this standard.

Definition at line 43 of file class.h.

#define _ISOC99_SOURCE

Definition at line 11 of file class.h.

#define _NULL   NULL

Definition at line 24 of file class.h.

#define CALL	(		object,
			_iface,
			method,
			...
	)

Value:

do {                                             \
                _CALL(object, _iface, method, ##__VA_ARGS__); \
                iface->method(object, ##__VA_ARGS__);        \
        } while(0)

Definition at line 55 of file class.h.

#define CLASS

(

name

)

Value:

struct c_##name;                   \
        typedef struct c_##name * name;    \
        extern struct class * const _##name; \
        struct c_##name

Definition at line 15 of file class.h.

#define CLASS_MAGIC   0xFEFE

Definition at line 13 of file class.h.

#define CREATE_CLASS	(		name,
			_parent,
			...
	)

Value:

static struct class c_##name;      \
        static void _classInit_(void) {    \
                c_##name.parent = _##_parent;  \
                c_##name.init   = NULL;        \
        }                                  \
        static struct class c_##name = {   \
                CLASS_MAGIC,                   \
                NULL,                          \
                sizeof(struct c_##name),       \
                _classInit_,                   \
                INIT_IMPL(__VA_ARGS__)         \
        }; struct class * const _##name = &c_##name

Definition at line 25 of file class.h.

#define EXTENDS

(

parent

)

const char _[sizeof(struct c_##parent)]

Definition at line 21 of file class.h.

#define HAS_PARENT

(

class

)

(NULL != ((class)->parent))

Definition at line 71 of file class.h.

#define IFACE_EXISTS	(		class,
			iface
	)		(NULL != IFACE_GET((class),(iface)))

Definition at line 69 of file class.h.

#define IFACE_GET	(		class,
			iface
	)		(interfaceGet(&((class)->impl),(iface)))

Definition at line 68 of file class.h.

#define RETCALL	(		object,
			_iface,
			method,
			ret,
			...
	)

Value:

do {                                             \
                _CALL(object, _iface, method, ##__VA_ARGS__); \
                ret = iface->method(object, ##__VA_ARGS__);  \
        } while(0)

Definition at line 61 of file class.h.

---

Typedef Documentation

typedef struct class* class_ptr

Definition at line 76 of file class.h.

typedef void(* fptr_classInit)(void)

Definition at line 73 of file class.h.

---

Function Documentation

class_ptr class_getClass

(

void *

)

Definition at line 21 of file class.c.

{
        return *(class_ptr *)(object - sizeof(void*));
}

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void* class_getInterface	(	class_ptr *	,
		iface_ptr
	)

Definition at line 8 of file class.c.

{
        void * iface = (void *)IFACE_GET(*class, _iface);

        while(NULL == iface && HAS_PARENT(*class)) {
                *class = (*class)->parent;
                iface = (void *)IFACE_GET(*class, _iface);
        }

        return iface;
}