/* * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 * Jonathan Schleifer * * 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. */ #include "config.h" #include #include #include #include #include #import "OFObject.h" #import "OFArray.h" #import "OFLocalization.h" #import "OFTimer.h" #import "OFRunLoop.h" #import "OFThread.h" #import "OFAllocFailedException.h" #import "OFEnumerationMutationException.h" #import "OFInitializationFailedException.h" #import "OFInvalidArgumentException.h" #import "OFMemoryNotPartOfObjectException.h" #import "OFNotImplementedException.h" #import "OFOutOfMemoryException.h" #import "OFOutOfRangeException.h" #if defined(OF_APPLE_RUNTIME) && __OBJC2__ # import #elif defined(OF_OBJFW_RUNTIME) # import "runtime.h" #endif #ifdef OF_WINDOWS # include #endif #import "OFString.h" #import "instance.h" #if defined(OF_HAVE_ATOMIC_OPS) # import "atomic.h" #elif defined(OF_HAVE_THREADS) # import "threading.h" #endif #ifdef OF_APPLE_RUNTIME extern double *NSFoundationVersionNumber __attribute__((__weak__)); #endif #if defined(OF_HAVE_FORWARDING_TARGET_FOR_SELECTOR) extern id of_forward(id, SEL, ...); extern struct stret of_forward_stret(id, SEL, ...); #else # define of_forward of_method_not_found # define of_forward_stret of_method_not_found_stret #endif struct pre_ivar { int retainCount; #if !defined(OF_HAVE_ATOMIC_OPS) && defined(OF_HAVE_THREADS) of_spinlock_t retainCountSpinlock; #endif struct pre_mem *firstMem, *lastMem; }; struct pre_mem { struct pre_mem *prev, *next; id owner; }; #define PRE_IVARS_ALIGN ((sizeof(struct pre_ivar) + \ (OF_BIGGEST_ALIGNMENT - 1)) & ~(OF_BIGGEST_ALIGNMENT - 1)) #define PRE_IVARS ((struct pre_ivar*)(void*)((char*)self - PRE_IVARS_ALIGN)) #define PRE_MEM_ALIGN ((sizeof(struct pre_mem) + \ (OF_BIGGEST_ALIGNMENT - 1)) & ~(OF_BIGGEST_ALIGNMENT - 1)) #define PRE_MEM(mem) ((struct pre_mem*)(void*)((char*)mem - PRE_MEM_ALIGN)) static struct { Class isa; } allocFailedException; uint32_t of_hash_seed; #if !defined(OF_APPLE_RUNTIME) || defined(__OBJC2__) static void uncaughtExceptionHandler(id exception) { OFString *description = [exception description]; OFArray *backtrace = nil; of_string_encoding_t encoding = [OFLocalization encoding]; fprintf(stderr, "\nRuntime error: Unhandled exception:\n%s\n", [description cStringWithEncoding: encoding]); if ([exception respondsToSelector: @selector(backtrace)]) backtrace = [exception backtrace]; if (backtrace != nil) { OFString *s = [backtrace componentsJoinedByString: @"\n "]; fprintf(stderr, "\nBacktrace:\n %s\n\n", [s cStringWithEncoding: encoding]); } abort(); } #endif static void enumerationMutationHandler(id object) { @throw [OFEnumerationMutationException exceptionWithObject: object]; } void OF_NO_RETURN_FUNC of_method_not_found(id obj, SEL sel) { [obj doesNotRecognizeSelector: sel]; /* * Just in case doesNotRecognizeSelector: returned, even though it must * never return. */ abort(); } void OF_NO_RETURN_FUNC of_method_not_found_stret(void *st, id obj, SEL sel) { of_method_not_found(obj, sel); } id of_alloc_object(Class class, size_t extraSize, size_t extraAlignment, void **extra) { OFObject *instance; size_t instanceSize; instanceSize = class_getInstanceSize(class); if OF_UNLIKELY (extraAlignment > 1) extraAlignment = ((instanceSize + extraAlignment - 1) & ~(extraAlignment - 1)) - extraAlignment; instance = malloc(PRE_IVARS_ALIGN + instanceSize + extraAlignment + extraSize); if OF_UNLIKELY (instance == nil) { allocFailedException.isa = [OFAllocFailedException class]; @throw (id)&allocFailedException; } ((struct pre_ivar*)instance)->retainCount = 1; ((struct pre_ivar*)instance)->firstMem = NULL; ((struct pre_ivar*)instance)->lastMem = NULL; #if !defined(OF_HAVE_ATOMIC_OPS) && defined(OF_HAVE_THREADS) if OF_UNLIKELY (!of_spinlock_new( &((struct pre_ivar*)instance)->retainCountSpinlock)) { free(instance); @throw [OFInitializationFailedException exceptionWithClass: class]; } #endif instance = (OFObject*)((char*)instance + PRE_IVARS_ALIGN); memset(instance, 0, instanceSize); if (!objc_constructInstance(class, instance)) { free((char*)instance - PRE_IVARS_ALIGN); @throw [OFInitializationFailedException exceptionWithClass: class]; } if OF_UNLIKELY (extra != NULL) *extra = (char*)instance + instanceSize + extraAlignment; return instance; } const char* _NSPrintForDebugger(id object) { return [[object description] cStringWithEncoding: [OFLocalization encoding]]; } /* References for static linking */ void _references_to_categories_of_OFObject(void) { _OFObject_KeyValueCoding_reference = 1; _OFObject_Serialization_reference = 1; } @implementation OFObject + (void)load { #if !defined(OF_APPLE_RUNTIME) || defined(__OBJC2__) objc_setUncaughtExceptionHandler(uncaughtExceptionHandler); #endif #if defined(OF_APPLE_RUNTIME) /* * If the NSFoundationVersionNumber symbol is defined, we are linked * against Foundation. Since CoreFoundation sets its own forward * handler on load, we should not set ours, as this will break * Foundation. * * Unfortunately, there is no way to check if a forward handler has * already been set, so this is the best we can do. */ if (&NSFoundationVersionNumber == NULL) objc_setForwardHandler((void*)&of_forward, (void*)&of_forward_stret); #else objc_setForwardHandler((IMP)&of_forward, (IMP)&of_forward_stret); #endif objc_setEnumerationMutationHandler(enumerationMutationHandler); of_hash_seed = 0; while (of_hash_seed == 0) { #if defined(HAVE_ARC4RANDOM) of_hash_seed = arc4random(); #elif defined(HAVE_RANDOM) struct timeval t; gettimeofday(&t, NULL); srandom((unsigned)(t.tv_sec ^ t.tv_usec)); of_hash_seed = (uint32_t)((random() << 16) | (random() & 0xFFFF)); #else struct timeval t; gettimeofday(&t, NULL); srand((unsigned)(t.tv_sec ^ t.tv_usec)); of_hash_seed = (uint32_t)((rand() << 16) | (rand() & 0xFFFF)); #endif } } + (void)unload { } + (void)initialize { } + alloc { return of_alloc_object(self, 0, 0, NULL); } + new { return [[self alloc] init]; } + (Class)class { return self; } + (OFString*)className { return [OFString stringWithCString: class_getName(self) encoding: OF_STRING_ENCODING_ASCII]; } + (bool)isSubclassOfClass: (Class)class { for (Class iter = self; iter != Nil; iter = class_getSuperclass(iter)) if (iter == class) return true; return false; } + (Class)superclass { return class_getSuperclass(self); } + (bool)instancesRespondToSelector: (SEL)selector { return class_respondsToSelector(self, selector); } + (bool)conformsToProtocol: (Protocol*)protocol { Class c; for (c = self; c != Nil; c = class_getSuperclass(c)) if (class_conformsToProtocol(c, protocol)) return true; return false; } + (IMP)instanceMethodForSelector: (SEL)selector { return class_getMethodImplementation(self, selector); } + (const char*)typeEncodingForInstanceSelector: (SEL)selector { #if defined(OF_OBJFW_RUNTIME) return class_getMethodTypeEncoding(self, selector); #else Method m; if ((m = class_getInstanceMethod(self, selector)) == NULL) return NULL; return method_getTypeEncoding(m); #endif } + (OFString*)description { return [self className]; } + (IMP)replaceClassMethod: (SEL)selector withMethodFromClass: (Class)class { IMP newImp; const char *typeEncoding; newImp = [class methodForSelector: selector]; typeEncoding = [class typeEncodingForSelector: selector]; return [self replaceClassMethod: selector withImplementation: newImp typeEncoding: typeEncoding]; } + (IMP)replaceInstanceMethod: (SEL)selector withMethodFromClass: (Class)class { IMP newImp; const char *typeEncoding; newImp = [class instanceMethodForSelector: selector]; typeEncoding = [class typeEncodingForInstanceSelector: selector]; return [self replaceInstanceMethod: selector withImplementation: newImp typeEncoding: typeEncoding]; } + (IMP)replaceInstanceMethod: (SEL)selector withImplementation: (IMP)implementation typeEncoding: (const char*)typeEncoding { return class_replaceMethod(self, selector, implementation, typeEncoding); } + (IMP)replaceClassMethod: (SEL)selector withImplementation: (IMP)implementation typeEncoding: (const char*)typeEncoding { return class_replaceMethod(object_getClass(self), selector, implementation, typeEncoding); } + (void)inheritMethodsFromClass: (Class)class { Class superclass = [self superclass]; if ([self isSubclassOfClass: class]) return; #if defined(OF_OBJFW_RUNTIME) for (struct objc_method_list *methodlist = object_getClass(class)->methodlist; methodlist != NULL; methodlist = methodlist->next) { for (unsigned int i = 0; i < methodlist->count; i++) { SEL selector = (SEL)&methodlist->methods[i].sel; /* * Don't replace methods implemented in the receiving * class. */ if ([self methodForSelector: selector] != [superclass methodForSelector: selector]) continue; [self replaceClassMethod: selector withMethodFromClass: class]; } } for (struct objc_method_list *methodlist = class->methodlist; methodlist != NULL; methodlist = methodlist->next) { for (unsigned int i = 0; i < methodlist->count; i++) { SEL selector = (SEL)&methodlist->methods[i].sel; /* * Don't replace methods implemented in the receiving * class. */ if ([self instanceMethodForSelector: selector] != [superclass instanceMethodForSelector: selector]) continue; [self replaceInstanceMethod: selector withMethodFromClass: class]; } } #elif defined(OF_APPLE_RUNTIME) Method *methodList; unsigned int count; methodList = class_copyMethodList(object_getClass(class), &count); @try { for (unsigned int i = 0; i < count; i++) { SEL selector = method_getName(methodList[i]); /* * Don't replace methods implemented in the receiving * class. */ if ([self methodForSelector: selector] != [superclass methodForSelector: selector]) continue; [self replaceClassMethod: selector withMethodFromClass: class]; } } @finally { free(methodList); } methodList = class_copyMethodList(class, &count); @try { for (unsigned int i = 0; i < count; i++) { SEL selector = method_getName(methodList[i]); /* * Don't replace methods implemented in the receiving * class. */ if ([self instanceMethodForSelector: selector] != [superclass instanceMethodForSelector: selector]) continue; [self replaceInstanceMethod: selector withMethodFromClass: class]; } } @finally { free(methodList); } #endif [self inheritMethodsFromClass: [class superclass]]; } + (bool)resolveClassMethod: (SEL)selector { return false; } + (bool)resolveInstanceMethod: (SEL)selector { return false; } - init { return self; } - (Class)class { return object_getClass(self); } - (Class)superclass { return class_getSuperclass(object_getClass(self)); } - (OFString*)className { return [OFString stringWithCString: object_getClassName(self) encoding: OF_STRING_ENCODING_ASCII]; } - (bool)isKindOfClass: (Class)class { for (Class iter = object_getClass(self); iter != Nil; iter = class_getSuperclass(iter)) if (iter == class) return true; return false; } - (bool)isMemberOfClass: (Class)class { return (object_getClass(self) == class); } - (bool)respondsToSelector: (SEL)selector { return class_respondsToSelector(object_getClass(self), selector); } - (bool)conformsToProtocol: (Protocol*)protocol { return [object_getClass(self) conformsToProtocol: protocol]; } - (IMP)methodForSelector: (SEL)selector { return class_getMethodImplementation(object_getClass(self), selector); } - (id)performSelector: (SEL)selector { #if defined(OF_OBJFW_RUNTIME) id (*imp)(id, SEL) = (id(*)(id, SEL))objc_msg_lookup(self, selector); #elif defined(OF_APPLE_RUNTIME) id (*imp)(id, SEL) = (id(*)(id, SEL))objc_msgSend; #endif return imp(self, selector); } - (id)performSelector: (SEL)selector withObject: (id)object { #if defined(OF_OBJFW_RUNTIME) id (*imp)(id, SEL, id) = (id(*)(id, SEL, id))objc_msg_lookup(self, selector); #elif defined(OF_APPLE_RUNTIME) id (*imp)(id, SEL, id) = (id(*)(id, SEL, id))objc_msgSend; #endif return imp(self, selector, object); } - (id)performSelector: (SEL)selector withObject: (id)object1 withObject: (id)object2 { #if defined(OF_OBJFW_RUNTIME) id (*imp)(id, SEL, id, id) = (id(*)(id, SEL, id, id))objc_msg_lookup(self, selector); #elif defined(OF_APPLE_RUNTIME) id (*imp)(id, SEL, id, id) = (id(*)(id, SEL, id, id))objc_msgSend; #endif return imp(self, selector, object1, object2); } - (void)performSelector: (SEL)selector afterDelay: (of_time_interval_t)delay { void *pool = objc_autoreleasePoolPush(); [OFTimer scheduledTimerWithTimeInterval: delay target: self selector: selector repeats: false]; objc_autoreleasePoolPop(pool); } - (void)performSelector: (SEL)selector withObject: (id)object afterDelay: (of_time_interval_t)delay { void *pool = objc_autoreleasePoolPush(); [OFTimer scheduledTimerWithTimeInterval: delay target: self selector: selector object: object repeats: false]; objc_autoreleasePoolPop(pool); } - (void)performSelector: (SEL)selector withObject: (id)object1 withObject: (id)object2 afterDelay: (of_time_interval_t)delay { void *pool = objc_autoreleasePoolPush(); [OFTimer scheduledTimerWithTimeInterval: delay target: self selector: selector object: object1 object: object2 repeats: false]; objc_autoreleasePoolPop(pool); } #ifdef OF_HAVE_THREADS - (void)performSelector: (SEL)selector onThread: (OFThread*)thread waitUntilDone: (bool)waitUntilDone { void *pool = objc_autoreleasePoolPush(); OFTimer *timer = [OFTimer timerWithTimeInterval: 0 target: self selector: selector repeats: false]; [[thread runLoop] addTimer: timer]; if (waitUntilDone) [timer waitUntilDone]; objc_autoreleasePoolPop(pool); } - (void)performSelector: (SEL)selector onThread: (OFThread*)thread withObject: (id)object waitUntilDone: (bool)waitUntilDone { void *pool = objc_autoreleasePoolPush(); OFTimer *timer = [OFTimer timerWithTimeInterval: 0 target: self selector: selector object: object repeats: false]; [[thread runLoop] addTimer: timer]; if (waitUntilDone) [timer waitUntilDone]; objc_autoreleasePoolPop(pool); } - (void)performSelector: (SEL)selector onThread: (OFThread*)thread withObject: (id)object1 withObject: (id)object2 waitUntilDone: (bool)waitUntilDone { void *pool = objc_autoreleasePoolPush(); OFTimer *timer = [OFTimer timerWithTimeInterval: 0 target: self selector: selector object: object1 object: object2 repeats: false]; [[thread runLoop] addTimer: timer]; if (waitUntilDone) [timer waitUntilDone]; objc_autoreleasePoolPop(pool); } - (void)performSelectorOnMainThread: (SEL)selector waitUntilDone: (bool)waitUntilDone { void *pool = objc_autoreleasePoolPush(); OFTimer *timer = [OFTimer timerWithTimeInterval: 0 target: self selector: selector repeats: false]; [[OFRunLoop mainRunLoop] addTimer: timer]; if (waitUntilDone) [timer waitUntilDone]; objc_autoreleasePoolPop(pool); } - (void)performSelectorOnMainThread: (SEL)selector withObject: (id)object waitUntilDone: (bool)waitUntilDone { void *pool = objc_autoreleasePoolPush(); OFTimer *timer = [OFTimer timerWithTimeInterval: 0 target: self selector: selector object: object repeats: false]; [[OFRunLoop mainRunLoop] addTimer: timer]; if (waitUntilDone) [timer waitUntilDone]; objc_autoreleasePoolPop(pool); } - (void)performSelectorOnMainThread: (SEL)selector withObject: (id)object1 withObject: (id)object2 waitUntilDone: (bool)waitUntilDone { void *pool = objc_autoreleasePoolPush(); OFTimer *timer = [OFTimer timerWithTimeInterval: 0 target: self selector: selector object: object1 object: object2 repeats: false]; [[OFRunLoop mainRunLoop] addTimer: timer]; if (waitUntilDone) [timer waitUntilDone]; objc_autoreleasePoolPop(pool); } - (void)performSelector: (SEL)selector onThread: (OFThread*)thread afterDelay: (of_time_interval_t)delay { void *pool = objc_autoreleasePoolPush(); [[thread runLoop] addTimer: [OFTimer timerWithTimeInterval: delay target: self selector: selector repeats: false]]; objc_autoreleasePoolPop(pool); } - (void)performSelector: (SEL)selector onThread: (OFThread*)thread withObject: (id)object afterDelay: (of_time_interval_t)delay { void *pool = objc_autoreleasePoolPush(); [[thread runLoop] addTimer: [OFTimer timerWithTimeInterval: delay target: self selector: selector object: object repeats: false]]; objc_autoreleasePoolPop(pool); } - (void)performSelector: (SEL)selector onThread: (OFThread*)thread withObject: (id)object1 withObject: (id)object2 afterDelay: (of_time_interval_t)delay { void *pool = objc_autoreleasePoolPush(); [[thread runLoop] addTimer: [OFTimer timerWithTimeInterval: delay target: self selector: selector object: object1 object: object2 repeats: false]]; objc_autoreleasePoolPop(pool); } #endif - (const char*)typeEncodingForSelector: (SEL)selector { #if defined(OF_OBJFW_RUNTIME) return class_getMethodTypeEncoding(object_getClass(self), selector); #else Method m; if ((m = class_getInstanceMethod(object_getClass(self), selector)) == NULL) return NULL; return method_getTypeEncoding(m); #endif } - (bool)isEqual: (id)object { return (self == object); } - (uint32_t)hash { uintptr_t ptr = (uintptr_t)self; uint32_t hash; OF_HASH_INIT(hash); while (ptr != 0) { OF_HASH_ADD(hash, ptr & 0xFF); ptr <<= 8; } OF_HASH_FINALIZE(hash); return hash; } - (OFString*)description { /* Classes containing data should reimplement this! */ return [OFString stringWithFormat: @"<%@: %p>", [self className], self]; } - (void*)allocMemoryWithSize: (size_t)size { void *pointer; struct pre_mem *preMem; if OF_UNLIKELY (size == 0) return NULL; if OF_UNLIKELY (size > SIZE_MAX - PRE_IVARS_ALIGN) @throw [OFOutOfRangeException exception]; if OF_UNLIKELY ((pointer = malloc(PRE_MEM_ALIGN + size)) == NULL) @throw [OFOutOfMemoryException exceptionWithRequestedSize: size]; preMem = pointer; preMem->owner = self; preMem->prev = PRE_IVARS->lastMem; preMem->next = NULL; if OF_LIKELY (PRE_IVARS->lastMem != NULL) PRE_IVARS->lastMem->next = preMem; if OF_UNLIKELY (PRE_IVARS->firstMem == NULL) PRE_IVARS->firstMem = preMem; PRE_IVARS->lastMem = preMem; return (char*)pointer + PRE_MEM_ALIGN; } - (void*)allocMemoryWithSize: (size_t)size count: (size_t)count { if OF_UNLIKELY (count > SIZE_MAX / size) @throw [OFOutOfRangeException exception]; return [self allocMemoryWithSize: size * count]; } - (void*)resizeMemory: (void*)pointer size: (size_t)size { void *new; struct pre_mem *preMem; if OF_UNLIKELY (pointer == NULL) return [self allocMemoryWithSize: size]; if OF_UNLIKELY (size == 0) { [self freeMemory: pointer]; return NULL; } if OF_UNLIKELY (PRE_MEM(pointer)->owner != self) @throw [OFMemoryNotPartOfObjectException exceptionWithPointer: pointer object: self]; if OF_UNLIKELY ((new = realloc(PRE_MEM(pointer), PRE_MEM_ALIGN + size)) == NULL) @throw [OFOutOfMemoryException exceptionWithRequestedSize: size]; preMem = new; if OF_UNLIKELY (preMem != PRE_MEM(pointer)) { if OF_LIKELY (preMem->prev != NULL) preMem->prev->next = preMem; if OF_LIKELY (preMem->next != NULL) preMem->next->prev = preMem; if OF_UNLIKELY (PRE_IVARS->firstMem == PRE_MEM(pointer)) PRE_IVARS->firstMem = preMem; if OF_UNLIKELY (PRE_IVARS->lastMem == PRE_MEM(pointer)) PRE_IVARS->lastMem = preMem; } return (char*)new + PRE_MEM_ALIGN; } - (void*)resizeMemory: (void*)pointer size: (size_t)size count: (size_t)count { if OF_UNLIKELY (pointer == NULL) return [self allocMemoryWithSize: size count: count]; if OF_UNLIKELY (size == 0 || count == 0) { [self freeMemory: pointer]; return NULL; } if OF_UNLIKELY (count > SIZE_MAX / size) @throw [OFOutOfRangeException exception]; return [self resizeMemory: pointer size: size * count]; } - (void)freeMemory: (void*)pointer { if OF_UNLIKELY (pointer == NULL) return; if OF_UNLIKELY (PRE_MEM(pointer)->owner != self) @throw [OFMemoryNotPartOfObjectException exceptionWithPointer: pointer object: self]; if OF_LIKELY (PRE_MEM(pointer)->prev != NULL) PRE_MEM(pointer)->prev->next = PRE_MEM(pointer)->next; if OF_LIKELY (PRE_MEM(pointer)->next != NULL) PRE_MEM(pointer)->next->prev = PRE_MEM(pointer)->prev; if OF_UNLIKELY (PRE_IVARS->firstMem == PRE_MEM(pointer)) PRE_IVARS->firstMem = PRE_MEM(pointer)->next; if OF_UNLIKELY (PRE_IVARS->lastMem == PRE_MEM(pointer)) PRE_IVARS->lastMem = PRE_MEM(pointer)->prev; /* To detect double-free */ PRE_MEM(pointer)->owner = nil; free(PRE_MEM(pointer)); } - (id)forwardingTargetForSelector: (SEL)selector { return nil; } - (void)doesNotRecognizeSelector: (SEL)selector { @throw [OFNotImplementedException exceptionWithSelector: selector object: self]; } - retain { #if defined(OF_HAVE_ATOMIC_OPS) of_atomic_int_inc(&PRE_IVARS->retainCount); #else OF_ENSURE(of_spinlock_lock(&PRE_IVARS->retainCountSpinlock)); PRE_IVARS->retainCount++; OF_ENSURE(of_spinlock_unlock(&PRE_IVARS->retainCountSpinlock)); #endif return self; } - (unsigned int)retainCount { assert(PRE_IVARS->retainCount >= 0); return PRE_IVARS->retainCount; } - (void)release { #if defined(OF_HAVE_ATOMIC_OPS) if (of_atomic_int_dec(&PRE_IVARS->retainCount) <= 0) [self dealloc]; #else size_t c; OF_ENSURE(of_spinlock_lock(&PRE_IVARS->retainCountSpinlock)); c = --PRE_IVARS->retainCount; OF_ENSURE(of_spinlock_unlock(&PRE_IVARS->retainCountSpinlock)); if (c == 0) [self dealloc]; #endif } - autorelease { return _objc_rootAutorelease(self); } - self { return self; } - (bool)isProxy { return false; } - (bool)allowsWeakReference { return true; } - (bool)retainWeakReference { [self retain]; return true; } - (void)dealloc { struct pre_mem *iter; objc_destructInstance(self); iter = PRE_IVARS->firstMem; while (iter != NULL) { struct pre_mem *next = iter->next; /* * We can use owner as a sentinel to prevent exploitation in * case there is a buffer underflow somewhere. */ OF_ENSURE(iter->owner == self); free(iter); iter = next; } free((char*)self - PRE_IVARS_ALIGN); } /* Required to use properties with the Apple runtime */ - copyWithZone: (void*)zone { if OF_UNLIKELY (zone != NULL) { [self doesNotRecognizeSelector: _cmd]; abort(); } return [(id)self copy]; } - mutableCopyWithZone: (void*)zone { if OF_UNLIKELY (zone != NULL) { [self doesNotRecognizeSelector: _cmd]; abort(); } return [(id)self mutableCopy]; } /* * Those are needed as the root class is the superclass of the root class's * metaclass and thus instance methods can be sent to class objects as well. */ + (void*)allocMemoryWithSize: (size_t)size { OF_UNRECOGNIZED_SELECTOR } + (void*)allocMemoryWithSize: (size_t)size count: (size_t)count { OF_UNRECOGNIZED_SELECTOR } + (void*)resizeMemory: (void*)pointer size: (size_t)size { OF_UNRECOGNIZED_SELECTOR } + (void*)resizeMemory: (void*)pointer size: (size_t)size count: (size_t)count { OF_UNRECOGNIZED_SELECTOR } + (void)freeMemory: (void*)pointer { OF_UNRECOGNIZED_SELECTOR } + retain { return self; } + autorelease { return self; } + (unsigned int)retainCount { return OF_RETAIN_COUNT_MAX; } + (void)release { } + (void)dealloc { OF_UNRECOGNIZED_SELECTOR } + copy { return self; } + mutableCopyWithZone: (void*)zone { OF_UNRECOGNIZED_SELECTOR } /* Required to use ObjFW from Swift */ + allocWithZone: (void*)zone { if OF_UNLIKELY (zone != NULL) { [self doesNotRecognizeSelector: _cmd]; abort(); } return [self alloc]; } @end