24 #if !defined(__has_feature) || !__has_feature(nullability) 33 typedef uint32_t (*_Nonnull objc_hashtable_hash_func)(
const void *_Nonnull key);
34 typedef bool (*_Nonnull objc_hashtable_equal_func)(
const void *_Nonnull key1,
35 const void *_Nonnull key2);
39 Class _Nullable superclass;
40 const char *_Nonnull name;
41 unsigned long version;
44 struct objc_ivar_list *_Nullable ivars;
45 struct objc_method_list *_Nullable methodList;
46 struct objc_dtable *_Nullable dTable;
47 Class _Nullable *_Nullable subclassList;
48 void *_Nullable siblingClass;
49 struct objc_protocol_list *_Nullable protocols;
50 void *_Nullable GCObjectType;
51 unsigned long ABIVersion;
52 int32_t *_Nonnull *_Nullable ivarOffsets;
53 struct objc_property_list *_Nullable propertyList;
56 enum objc_class_info {
57 OBJC_CLASS_INFO_CLASS = 0x001,
58 OBJC_CLASS_INFO_METACLASS = 0x002,
59 OBJC_CLASS_INFO_NEW_ABI = 0x010,
60 OBJC_CLASS_INFO_SETUP = 0x100,
61 OBJC_CLASS_INFO_LOADED = 0x200,
62 OBJC_CLASS_INFO_DTABLE = 0x400,
63 OBJC_CLASS_INFO_INITIALIZED = 0x800
70 struct objc_selector {
72 const char *_Nullable typeEncoding;
76 struct objc_selector selector;
77 IMP _Nonnull implementation;
80 struct objc_method_list {
81 struct objc_method_list *_Nullable next;
83 struct objc_method methods[1];
86 struct objc_category {
87 const char *_Nonnull categoryName;
88 const char *_Nonnull className;
89 struct objc_method_list *_Nullable instanceMethods;
90 struct objc_method_list *_Nullable classMethods;
91 struct objc_protocol_list *_Nullable protocols;
95 const char *_Nonnull name;
96 const char *_Nonnull typeEncoding;
100 struct objc_ivar_list {
102 struct objc_ivar ivars[1];
105 struct objc_method_description {
106 const char *_Nonnull name;
107 const char *_Nonnull typeEncoding;
110 struct objc_method_description_list {
112 struct objc_method_description list[1];
115 struct objc_protocol_list {
116 struct objc_protocol_list *_Nullable next;
118 Protocol *__unsafe_unretained _Nonnull list[1];
121 #if __has_attribute(__objc_root_class__) 122 __attribute__((__objc_root_class__))
128 const char *_Nonnull name;
129 struct objc_protocol_list *_Nullable protocolList;
130 struct objc_method_description_list *_Nullable instanceMethods;
131 struct objc_method_description_list *_Nullable classMethods;
135 enum objc_property_attributes {
136 OBJC_PROPERTY_READONLY = 0x01,
137 OBJC_PROPERTY_GETTER = 0x02,
138 OBJC_PROPERTY_ASSIGN = 0x04,
139 OBJC_PROPERTY_READWRITE = 0x08,
140 OBJC_PROPERTY_RETAIN = 0x10,
141 OBJC_PROPERTY_COPY = 0x20,
142 OBJC_PROPERTY_NONATOMIC = 0x40,
143 OBJC_PROPERTY_SETTER = 0x80
146 enum objc_property_extended_attributes {
147 OBJC_PROPERTY_SYNTHESIZED = 0x1,
148 OBJC_PROPERTY_DYNAMIC = 0x2,
149 OBJC_PROPERTY_PROTOCOL = 0x3,
150 OBJC_PROPERTY_ATOMIC = 0x4,
151 OBJC_PROPERTY_WEAK = 0x8,
152 OBJC_PROPERTY_STRONG = 0x10,
153 OBJC_PROPERTY_UNSAFE_UNRETAINED = 0x20
156 struct objc_property {
157 const char *_Nonnull name;
158 unsigned char attributes, extendedAttributes;
160 const char *_Nullable name;
161 const char *_Nullable typeEncoding;
165 struct objc_property_list {
167 struct objc_property_list *_Nullable next;
168 struct objc_property properties[1];
171 struct objc_static_instances {
172 const char *_Nonnull className;
173 id _Nullable instances[1];
177 unsigned long unknown;
178 struct objc_selector *_Nullable selectorRefs;
179 uint16_t classDefsCount;
180 uint16_t categoryDefsCount;
181 void *_Nonnull defs[1];
184 struct _objc_module {
185 unsigned long version;
187 const char *_Nullable name;
188 struct objc_symtab *_Nonnull symtab;
191 struct objc_hashtable_bucket {
192 const void *_Nonnull key, *_Nonnull object;
196 struct objc_hashtable {
197 objc_hashtable_hash_func hash;
198 objc_hashtable_equal_func equal;
199 uint32_t count, size;
200 struct objc_hashtable_bucket *_Nonnull *_Nullable data;
203 struct objc_sparsearray {
204 struct objc_sparsearray_data {
205 void *_Nullable next[256];
211 struct objc_dtable_level2 {
213 struct objc_dtable_level3 {
214 IMP _Nullable buckets[256];
215 } *_Nonnull buckets[256];
217 IMP _Nullable buckets[256];
219 } *_Nonnull buckets[256];
222 extern void objc_registerAllCategories(
struct objc_symtab *_Nonnull)
223 OF_VISIBILITY_HIDDEN;
224 extern struct objc_category *_Nullable *_Nullable
225 objc_categoriesForClass(Class _Nonnull) OF_VISIBILITY_HIDDEN;
226 extern void objc_unregisterAllCategories(
void) OF_VISIBILITY_HIDDEN;
227 extern void objc_initializeClass(Class _Nonnull) OF_VISIBILITY_HIDDEN;
228 extern void objc_updateDTable(Class _Nonnull) OF_VISIBILITY_HIDDEN;
229 extern void objc_registerAllClasses(
struct objc_symtab *_Nonnull)
230 OF_VISIBILITY_HIDDEN;
231 extern Class _Nullable objc_classnameToClass(
const char *_Nonnull,
bool)
232 OF_VISIBILITY_HIDDEN;
233 extern void objc_unregisterClass(Class _Nonnull) OF_VISIBILITY_HIDDEN;
234 extern void objc_unregisterAllClasses(
void) OF_VISIBILITY_HIDDEN;
235 extern uint32_t objc_string_hash(
const void *_Nonnull) OF_VISIBILITY_HIDDEN;
236 extern bool objc_string_equal(
const void *_Nonnull,
const void *_Nonnull)
237 OF_VISIBILITY_HIDDEN;
238 extern struct objc_hashtable *_Nonnull objc_hashtable_new(
239 objc_hashtable_hash_func, objc_hashtable_equal_func, uint32_t)
240 OF_VISIBILITY_HIDDEN;
241 extern struct objc_hashtable_bucket objc_deletedBucket OF_VISIBILITY_HIDDEN;
242 extern void objc_hashtable_set(
struct objc_hashtable *_Nonnull,
243 const void *_Nonnull,
const void *_Nonnull) OF_VISIBILITY_HIDDEN;
244 extern void *_Nullable objc_hashtable_get(
struct objc_hashtable *_Nonnull,
245 const void *_Nonnull) OF_VISIBILITY_HIDDEN;
246 extern void objc_hashtable_delete(
struct objc_hashtable *_Nonnull,
247 const void *_Nonnull) OF_VISIBILITY_HIDDEN;
248 extern void objc_hashtable_free(
struct objc_hashtable *_Nonnull)
249 OF_VISIBILITY_HIDDEN;
250 extern void objc_registerSelector(
struct objc_selector *_Nonnull)
251 OF_VISIBILITY_HIDDEN;
252 extern void objc_registerAllSelectors(
struct objc_symtab *_Nonnull)
253 OF_VISIBILITY_HIDDEN;
254 extern void objc_unregisterAllSelectors(
void) OF_VISIBILITY_HIDDEN;
255 extern struct objc_sparsearray *_Nonnull objc_sparsearray_new(uint8_t)
256 OF_VISIBILITY_HIDDEN;
257 extern void *_Nullable objc_sparsearray_get(
struct objc_sparsearray *_Nonnull,
258 uintptr_t) OF_VISIBILITY_HIDDEN;
259 extern void objc_sparsearray_set(
struct objc_sparsearray *_Nonnull, uintptr_t,
260 void *_Nullable) OF_VISIBILITY_HIDDEN;
261 extern void objc_sparsearray_free(
struct objc_sparsearray *_Nonnull)
262 OF_VISIBILITY_HIDDEN;
263 extern struct objc_dtable *_Nonnull objc_dtable_new(
void) OF_VISIBILITY_HIDDEN;
264 extern void objc_dtable_copy(
struct objc_dtable *_Nonnull,
265 struct objc_dtable *_Nonnull) OF_VISIBILITY_HIDDEN;
266 extern void objc_dtable_set(
struct objc_dtable *_Nonnull, uint32_t,
267 IMP _Nullable) OF_VISIBILITY_HIDDEN;
268 extern void objc_dtable_free(
struct objc_dtable *_Nonnull) OF_VISIBILITY_HIDDEN;
269 extern void objc_dtable_cleanup(
void) OF_VISIBILITY_HIDDEN;
270 extern void objc_initStaticInstances(
struct objc_symtab *_Nonnull)
271 OF_VISIBILITY_HIDDEN;
272 extern void objc_forgetPendingStaticInstances(
void) OF_VISIBILITY_HIDDEN;
273 extern void objc_zeroWeakReferences(
id _Nonnull) OF_VISIBILITY_HIDDEN;
274 extern Class _Nullable object_getTaggedPointerClass(
id _Nonnull)
275 OF_VISIBILITY_HIDDEN;
276 #ifdef OF_HAVE_THREADS 277 extern void objc_globalMutex_lock(
void) OF_VISIBILITY_HIDDEN;
278 extern void objc_globalMutex_unlock(
void) OF_VISIBILITY_HIDDEN;
279 extern void objc_globalMutex_free(
void) OF_VISIBILITY_HIDDEN;
281 # define objc_globalMutex_lock() 282 # define objc_globalMutex_unlock() 283 # define objc_globalMutex_free() 285 extern char *_Nullable objc_strdup(
const char *_Nonnull
string)
286 OF_VISIBILITY_HIDDEN;
288 static OF_INLINE
IMP _Nullable
289 objc_dtable_get(
const struct objc_dtable *_Nonnull dtable, uint32_t idx)
292 uint8_t i = idx >> 16;
293 uint8_t j = idx >> 8;
296 return dtable->buckets[i]->buckets[j]->buckets[k];
298 uint8_t i = idx >> 8;
301 return dtable->buckets[i]->buckets[j];
305 extern void OF_NO_RETURN_FUNC objc_error(
const char *_Nonnull title,
306 const char *_Nonnull format, ...) OF_VISIBILITY_HIDDEN;
307 #define OBJC_ERROR(...) \ 308 objc_error("ObjFWRT @ " __FILE__ ":" OF_STRINGIFY(__LINE__), \ 312 # if defined(OF_AMD64) || defined(OF_X86) || \ 313 defined(OF_POWERPC64) || defined(OF_POWERPC) || \ 314 defined(OF_ARM64) || defined(OF_ARM) || \ 315 defined(OF_MIPS64_N64) || defined(OF_MIPS) || \ 316 defined(OF_SPARC64) || defined(OF_SPARC) || \ 317 defined(OF_RISCV64) || defined(OF_LOONGARCH64) 318 # define OF_ASM_LOOKUP 320 #elif defined(OF_MACH_O) 321 # if defined(OF_AMD64) 322 # define OF_ASM_LOOKUP 324 #elif defined(OF_WINDOWS) 325 # if defined(OF_AMD64) || defined(OF_X86) || defined(OF_ARM64) 326 # define OF_ASM_LOOKUP 330 @interface DummyObject
335 @property (readonly, nonatomic)
bool allowsWeakReference;
338 + (bool)resolveClassMethod: (nonnull
SEL)selector;
339 + (bool)resolveInstanceMethod: (nonnull
SEL)selector;
340 - (nonnull id)retain;
342 - (nonnull id)autorelease;
344 - (nonnull id)mutableCopy;
345 - (bool)retainWeakReference;
A pointer to a class.
Definition: private.h:37
A pointer to any object.
Definition: private.h:66
const struct objc_protocol * Protocol
A protocol.
Definition: ObjFWRT.h:117
id(* IMP)(id object, SEL selector,...)
A method implementation.
Definition: ObjFWRT.h:146