/*
* Copyright (c) 2008, 2009, 2010, 2011, 2012
* Jonathan Schleifer <js@webkeks.org>
*
* All rights reserved.
*
* This file is part of ObjFW. It may be distributed under the terms of the
* Q Public License 1.0, which can be found in the file LICENSE.QPL included in
* the packaging of this file.
*
* Alternatively, it may be distributed under the terms of the GNU General
* Public License, either version 2 or 3, which can be found in the file
* LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
* file.
*/
#ifndef __OBJFW_RUNTIME_H__
#define __OBJFW_RUNTIME_H__
#include <stdint.h>
#ifndef __has_feature
# define __has_feature(x) 0
#endif
#if __has_feature(objc_arc)
# define OBJC_UNSAFE_UNRETAINED __unsafe_unretained
# define OBJC_BRIDGE __bridge
#else
# define OBJC_UNSAFE_UNRETAINED
# define OBJC_BRIDGE
#endif
typedef struct objc_class *Class;
typedef struct objc_object *id;
typedef const struct objc_selector *SEL;
typedef signed char BOOL;
typedef id (*IMP)(id, SEL, ...);
struct objc_class {
Class isa;
Class superclass;
const char *name;
unsigned long version;
unsigned long info;
unsigned long instance_size;
struct objc_ivar_list *ivars;
struct objc_method_list *methodlist;
struct objc_sparsearray *dtable;
Class *subclass_list;
void *sibling_class;
struct objc_protocol_list *protocols;
void *gc_object_type;
unsigned long abi_version;
void *ivar_offsets;
struct objc_property_list *properties;
};
enum objc_abi_class_info {
OBJC_CLASS_INFO_CLASS = 0x001,
OBJC_CLASS_INFO_METACLASS = 0x002,
OBJC_CLASS_INFO_NEW_ABI = 0x010,
OBJC_CLASS_INFO_SETUP = 0x100,
OBJC_CLASS_INFO_LOADED = 0x200,
OBJC_CLASS_INFO_DTABLE = 0x400,
OBJC_CLASS_INFO_INITIALIZED = 0x800
};
struct objc_object {
Class isa;
};
struct objc_selector {
uintptr_t uid;
const char *types;
};
struct objc_super {
OBJC_UNSAFE_UNRETAINED id self;
Class cls;
};
struct objc_method {
struct objc_selector sel;
IMP imp;
};
struct objc_method_list {
struct objc_method_list *next;
unsigned int count;
struct objc_method methods[1];
};
struct objc_category {
const char *category_name;
const char *class_name;
struct objc_method_list *instance_methods;
struct objc_method_list *class_methods;
struct objc_protocol_list *protocols;
};
struct objc_ivar {
const char *name;
const char *type;
unsigned offset;
};
struct objc_ivar_list {
unsigned count;
struct objc_ivar ivars[1];
};
#define OBJC_PROPERTY_READONLY 0x01
#define OBJC_PROPERTY_GETTER 0x02
#define OBJC_PROPERTY_ASSIGN 0x04
#define OBJC_PROPERTY_READWRITE 0x08
#define OBJC_PROPERTY_RETAIN 0x10
#define OBJC_PROPERTY_COPY 0x20
#define OBJC_PROPERTY_NONATOMIC 0x40
#define OBJC_PROPERTY_SETTER 0x80
struct objc_property {
const char *name;
unsigned char attributes;
BOOL synthesized;
struct {
const char *name;
const char *type;
} getter, setter;
};
struct objc_property_list {
unsigned count;
struct objc_property_list *next;
struct objc_property properties[1];
};
#ifdef __OBJC__
@interface Protocol
{
@public
#else
typedef struct {
#endif
Class isa;
const char *name;
struct objc_protocol_list *protocol_list;
struct objc_abi_method_description_list *instance_methods;
struct objc_abi_method_description_list *class_methods;
#ifdef __OBJC__
}
@end
#else
} Protocol;
#endif
struct objc_protocol_list {
struct objc_protocol_list *next;
long count;
OBJC_UNSAFE_UNRETAINED Protocol *list[1];
};
#define Nil (Class)0
#define nil (id)0
#define YES (BOOL)1
#define NO (BOOL)0
typedef void (*objc_uncaught_exception_handler)(id);
extern SEL sel_registerName(const char*);
extern const char* sel_getName(SEL);
extern BOOL sel_isEqual(SEL, SEL);
extern Class objc_get_class(const char*);
extern Class objc_lookup_class(const char*);
extern const char* class_getName(Class);
extern Class class_getSuperclass(Class);
extern BOOL class_isKindOfClass(Class, Class);
extern unsigned long class_getInstanceSize(Class);
extern BOOL class_respondsToSelector(Class, SEL);
extern BOOL class_conformsToProtocol(Class, Protocol*);
extern IMP class_getMethodImplementation(Class, SEL);
extern IMP class_replaceMethod(Class, SEL, IMP, const char*);
extern const char* objc_get_type_encoding(Class, SEL);
extern IMP objc_msg_lookup(id, SEL);
extern IMP objc_msg_lookup_super(struct objc_super*, SEL);
extern const char* protocol_getName(Protocol*);
extern BOOL protocol_isEqual(Protocol*, Protocol*);
extern BOOL protocol_conformsToProtocol(Protocol*, Protocol*);
extern void objc_exit(void);
extern objc_uncaught_exception_handler objc_setUncaughtExceptionHandler(
objc_uncaught_exception_handler);
extern IMP (*objc_forward_handler)(id, SEL);
extern id objc_constructInstance(Class, void*);
extern void* objc_destructInstance(id);
extern id objc_autorelease(id);
extern void* objc_autoreleasePoolPush(void);
extern void objc_autoreleasePoolPop(void*);
extern id _objc_rootAutorelease(id);
static inline Class
object_getClass(id obj_)
{
struct objc_object *obj = (OBJC_BRIDGE struct objc_object*)obj_;
return obj->isa;
}
static inline Class
object_setClass(id obj_, Class cls)
{
struct objc_object *obj = (OBJC_BRIDGE struct objc_object*)obj_;
Class old = obj->isa;
obj->isa = cls;
return old;
}
static inline const char*
object_getClassName(id obj)
{
return class_getName(object_getClass(obj));
}
static inline BOOL
class_isMetaClass(Class cls_)
{
struct objc_class *cls = (OBJC_BRIDGE struct objc_class*)cls_;
return (cls->info & OBJC_CLASS_INFO_METACLASS);
}
#undef OBJC_UNSAFE_UNRETAINED
#undef OBJC_BRIDGE
#endif